WO2012099245A1 - Reproduction device, recording device, method of reproduction, program, and information recording medium - Google Patents

Reproduction device, recording device, method of reproduction, program, and information recording medium Download PDF

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Publication number
WO2012099245A1
WO2012099245A1 PCT/JP2012/051223 JP2012051223W WO2012099245A1 WO 2012099245 A1 WO2012099245 A1 WO 2012099245A1 JP 2012051223 W JP2012051223 W JP 2012051223W WO 2012099245 A1 WO2012099245 A1 WO 2012099245A1
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WIPO (PCT)
Prior art keywords
vibration
vibration detection
information
playback
unit
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PCT/JP2012/051223
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French (fr)
Japanese (ja)
Inventor
彰浩 福元
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株式会社Ｊｖｃケンウッド
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Publication of WO2012099245A1 publication Critical patent/WO2012099245A1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G11B19/041—Detection or prevention of read or write errors
    • G11B19/042—Detection or prevention of read or write errors due to external shock or vibration

Definitions

  • the present invention relates to a playback apparatus that plays back content recorded on a medium, a recording apparatus that records content on a medium, a playback method, a program, and an information recording medium.
  • Profiles there are various standards for optical discs, and new standards are defined as needed.
  • profiles such as Profile 1.1 and Profile 2.0.
  • Profile 1.1 provides a function called Bonus View including Picture-in-Picture and Virtual Package.
  • Profile 2.0 provides a function called BD-Live including BD-J Network Access (Blu-ray Disc Java (registered trademark)) and Progressive Playlist.
  • Reproduction devices and recording devices are manufactured to conform to optical disc standards. However, in order to play back an optical disc in which content of a new standard is recorded, it is necessary to update the firmware held by the playback device. Similarly, in the case of a recording device, in order to record content on an optical disc in accordance with a new standard, it is necessary to update the firmware held by the recording device.
  • new firmware is provided about twice a month to support a new profile.
  • Some profiles such as the Profile 1.1 Virtual Package, must be supported. Therefore, it is necessary to update about once a month.
  • a method using a storage medium such as a CD, a DVD, or a flash memory may be employed. However, since the update frequency is high, a method via a network line is generally employed.
  • the first mode when a use is determined based on vibration detection information related to vibration and the use is determined to be a first use with a certain level of vibration, the first mode has a different function from the second mode. Even in an environment where firmware cannot be updated by playing back or recording content, or even in an environment where the number of firmware upgrades is small, a compact playback device, recording device, playback method, program, and information having a simple structure An object is to provide a recording medium.
  • a playback apparatus provides: The vibration detection information related to the vibration of the playback device is acquired, and based on the acquired vibration detection information, the playback device is used in a first environment with a certain level of vibration and the second environment does not have a certain level of vibration.
  • the first mode may be a playback mode in which functions used for playback are more limited than in the second mode.
  • the vibration detection means for outputting vibration detection information related to the vibration of the playback device,
  • the vibration detection means detects vibration generated in the playback device, and outputs vibration detection information including the detected number of vibrations
  • the discriminating unit may discriminate whether the usage of the reproducing apparatus is the first usage or the second usage based on the number of vibrations included in the vibration detection information.
  • the reproduction control means executes a process for reading content information from the medium, and outputs a servo signal in the process
  • the vibration detection unit may acquire a servo signal from the reproduction control unit, detect a vibration having a magnitude greater than a threshold value based on the acquired servo signal, and output vibration detection information including the detected number of vibrations. Good.
  • the vibration detection means includes a sensor for detecting vibration, and detecting the vibrations of greater than or equal to the threshold size based on the signal from the sensor may output a vibration detection information including the detected vibration number .
  • the vibration detection means may detect vibration and output vibration detection information when there is no sound output from the sound output means.
  • the reproduction control means may perform control so that no sound is output from the sound output means when the vibration detection means detects vibration.
  • silence determination for acquiring audio information indicating audio included in the content from the reproduction control unit and determining whether or not the content being reproduced includes audio based on the acquired audio information.
  • the vibration detection means may detect vibration and output vibration detection information when the silence determination means determines that no sound is included.
  • the vibration detection means while the regeneration control means executes a process for reading content information recorded in the medium, to detect the vibration may output a vibration detection information.
  • reproduction determination means for obtaining reproduction information indicating whether or not the content is being reproduced from the reproduction control means, and determining whether or not the content is being reproduced based on the obtained reproduction information
  • the vibration detection unit may detect vibration and output vibration detection information when the reproduction determination unit determines that the content is not being reproduced.
  • a recording apparatus is The vibration detection information related to the vibration of the recording apparatus is acquired as the vibration detection information. Based on the acquired vibration detection information, the use of the recording apparatus is a first application that involves a certain level of vibration and a second that does not involve a certain level of vibration.
  • a discriminating means for discriminating between the usage and the usage; When it is determined by the determining means that the application is the first use, content information is generated in the first mode that is different from the second mode suitable for recording in the second application, and the generated content information is Recording control means for executing control for recording on a medium; It further comprises output means for acquiring the generated content information from the recording control means and recording the content information on a medium.
  • a reproduction method is as follows. Based on the vibration detection information relating to the vibration of the playback device, it is determined whether the usage of the playback device is a first usage with a certain level of vibration or a second usage without a certain level of vibration, The content information recorded on the medium is read in the first mode, which is different from the second mode suitable for reproduction in the second use when it is determined that the use is the first use. .
  • a program according to the fourth aspect of the present invention is: In a program to be executed on a playback device, Vibration detection information is acquired, and based on the acquired vibration detection information, it is determined whether the application of the playback device is a first application that involves a certain level of vibration or a second application that does not involve a certain level of vibration. Let When it is determined to be the first application, a process for reading the content information recorded on the medium is executed in the first mode, which is different from the second mode suitable for reproduction in the second application. The content information is read, and the computer is caused to process the read content information.
  • An information recording medium is Acquire vibration detection information and control whether the application of the playback device is a first application involving a certain level of vibration or a second application not involving a certain level of vibration based on the acquired vibration detection information. Discriminate When the content information recorded on the medium is read in the first mode, which is different from the second mode suitable for reproduction in the second usage in the reproduction device when it is determined as the first usage. A program for executing the processing to execute reading of the content information and processing the read content information is recorded.
  • the playback device or the recording device discriminates the use based on the vibration detection information related to the vibration, and when it is discriminated that the use is the first use with a certain level of vibration, Can play or record content in the first mode, which uses different functions.
  • a BD (Blue-ray Disc) playback apparatus 100 according to a first embodiment of the present invention will be described with reference to FIGS.
  • the BD playback device 100 is a device that plays back content indicated by content information recorded on a BD as a medium, detects vibration using a servo signal generated when executing processing for reading content, The use is determined based on the detected number of vibrations.
  • the BD playback device 100 includes a discrimination information storage unit 101 and a mode information storage unit 102 as shown in FIG.
  • Each of the storage units 101 and 102 is realized by a storage medium such as a hard disk or a flash memory.
  • the discrimination information storage unit 101 stores discrimination information 101a.
  • the discrimination information 101a is information indicating the use of the BD playback device 100 determined by the BD playback device 100.
  • first application that is an application in an environment with a certain level of vibration
  • second application that is an application in an environment that does not involve a certain level of vibration.
  • the term “for stationary use” refers to an application in which the BD playback device 100 is installed and used at a fixed position in a general home or office.
  • the term “for transportation” refers to an application that is used by being installed in a mobile device such as a portable device or a vehicle-mounted device.
  • the BD playback device 100 may be incorporated in a car navigation system or the like.
  • FIG. 1 shows an example in which the discrimination information storage unit 101 stores information indicating “for transport” as discrimination information 101a.
  • the mode information storage unit 102 stores mode information 102a indicating a content playback method (mode) suitable for the use of the BD playback device 100.
  • the mode is determined in advance according to the use that is determined by the BD playback apparatus 100 by the user or the like, and is stored in advance in the mode information storage unit 102 as mode information 102a indicating the mode.
  • the mode information 102a of the present embodiment includes information indicating a transport mode (first mode) that is a playback method suitable for transport, and a stationary mode that is a playback method suitable for stationary.
  • Information indicating (second mode) includes information indicating a transport mode (first mode) that is a playback method suitable for transport, and a stationary mode that is a playback method suitable for stationary.
  • the stationary mode is a playback method that can use all the functions included in all profiles of BD.
  • the transport mode is an example of a playback control method in which the functions that can be used are more limited than those in the stationary mode.
  • the playback function using the Bonus View is limited. is there.
  • the BD playback apparatus 100 further includes a playback control unit 103, a vibration detection unit 104, a determination unit 105, and an input reception unit 106.
  • Each processing unit 103 to 106 is realized by, for example, a processor that executes a computer program.
  • the DB playback device 100 may include an output unit 108 described later.
  • the playback control unit 103 executes processing for reading the content information of the BD 107 from the BD 107, and reads the content information.
  • the processing for reading content information from the BD 107 includes control for rotating the BD 107 such as a focus servo and a tracking servo.
  • the reproduction control unit 103 refers to the discrimination information 101a stored in the discrimination information storage unit 101 and the mode information 102a stored in the mode information storage unit 102, and specifies the mode information 102a corresponding to the discrimination information 101a. .
  • the reproduction control unit 103 processes the read content information according to the mode indicated by the identified mode information 102a.
  • the content information processing includes processing for generating information in a format that can be output by a monitor, a speaker, and the like from the content information, processing for controlling output of the generated information, and the like.
  • a process for controlling the output of the generated information includes, for example, a volume adjustment process.
  • Vibration detection unit 104 acquires the servo signal from the reproduction control unit 103, detects a vibration generated in the BD playback apparatus 100 based on the obtained servo signals, including vibration number N V detected in the vibration detection time VDT Outputs vibration detection information.
  • the vibration detection unit 104 includes a comparator, for example.
  • the comparator acquires a servo signal, and outputs a signal indicating that the vibration is detected when the servo signal includes vibration exceeding the threshold value.
  • the vibration detection unit 104 counts the number of times the above signal is output from the comparator during a predetermined vibration detection time VDT. Thus, the number of vibrations N V is calculated.
  • the vibration detection unit 104 may further include, for example, a band-pass filter that passes a signal of several tens to several hundreds of hertz, and the comparator may acquire the servo signal via the band-pass filter.
  • a band-pass filter that passes a signal of several tens to several hundreds of hertz
  • the comparator may acquire the servo signal via the band-pass filter.
  • the servo signal is a signal generated by the playback control unit 103 in order to read content information from the BD 107, and is, for example, a tracking error (TE) signal.
  • the servo signal may be a focus error (FE) signal, a radio frequency (RF) signal during content reproduction, or the like.
  • (see fourth to sixth embodiments) may be configured to detect the vibration using it is preferable to detect, separately vibration sensor vibration using the servo signals in cost.
  • FIG. 3 shows details of the vibration detection unit 104.
  • the vibration detection unit 104 includes a vibration number storage unit 111.
  • Vibration frequency storage unit 111 stores a vibration count information indicating the detected number of oscillations N V, RAM (Random Access Memory ) and the like.
  • the vibration detection unit 104 includes a timer 112, an initialization unit 113, a sampling unit 114, a signal comparison unit 115, and an increment unit 116.
  • Timer 112 measures vibration detection time VDT.
  • the timer 112 is realized by using a clock signal generated by a processor of the BD playback device 100 or the like.
  • the initialization unit 113 activates the timer 112 and resets the vibration frequency information stored in the vibration frequency storage unit 111 as an initialization process before detecting vibration.
  • the sampling unit 114 acquires a servo signal from the reproduction control unit 103 for a time T 1 (milliseconds) set in advance as the vibration detection time VDT, and generates a vibration detection signal T SHOCK based on the acquired servo signal. To do.
  • the vibration detection signal T SHOCK is generated, for example, by passing a servo signal for sampling time ST (milliseconds) out of the servo signal acquired at the vibration detection time VDT through a band-pass filter.
  • the vibration detection signal T SHOCK is a signal indicating the magnitude of the predetermined frequency component.
  • the signal comparison unit 115 compares the magnitude indicated by each vibration detection signal T SHOCK with a preset threshold value TV 1 (mV), and outputs information indicating the comparison result.
  • the threshold value TV 1 is set to a value that is about three times the amplitude when the normal servo is ON.
  • the increment unit 116 acquires information indicating the comparison result from the signal comparison unit 115.
  • the increment unit 116 increments the number of vibrations N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111.
  • the number of vibration times N V will indicate the number of vibrations of the BD playback apparatus 100 detected in the vibration detection time VDT.
  • the processing units 113 to 116 are realized by a processor that executes a computer program.
  • the determination unit 105 illustrated in FIG. 1 acquires vibration frequency information from the vibration detection unit 104, and determines whether the use of the BD reproduction apparatus 100 is for stationary use or for conveyance based on the acquired vibration frequency information. Then, information indicating the discrimination result is output.
  • the determination unit 105 includes a vibration frequency comparison unit 121 and a use determination unit 122.
  • the number of vibrations comparison unit 121 acquires the number of vibrations information stored in the vibration frequency storage unit 111 from the increment unit 116 of the vibration detection unit 104, the obtained number of vibrations N V with a preset threshold TV vibration times information indicates 2 is output, and information indicating the comparison result is output. For example, it sets the threshold TV 2 is 3 to 10, sets the threshold value TV 2 to distinguish from when detecting the chance shake (vibration), such as an earthquake.
  • the application determining unit 122 determines whether the application of the BD playback device 100 is “for stationary” or “for transport” based on the comparison result indicated by the information acquired from the vibration frequency comparing unit 121. Specifically, application determination unit 122, when the number of vibrations N V is the threshold value TV 2 or more, and determined to be a transport, when the number of vibrations N V is less than the threshold TV 2, in a stationary Determine that there is. In addition, the usage determining unit 122 outputs information indicating the determination content to the discrimination information storage unit 101 and the reproduction control unit 103.
  • the processing units 121 and 122 are realized by a processor that executes a computer program.
  • the input receiving unit 106 receives a signal generated when a user or the like operates a button or the like (not shown) provided in the remote controller or the BD playback device 100, and outputs the received signal.
  • the output unit 108 acquires the content information processed by the playback control unit 103 from the playback control unit 103 and outputs the content.
  • the output unit 108 includes, for example, a monitor as the image output unit 109 that outputs an image, and a speaker as the audio output unit 110 that outputs sound.
  • the thus configured BD playback apparatus 100 the vibration is detected and the application based on the detected number of vibrations N V is to determine which of the conveyance and Stationary, in accordance to the determined application mode
  • the content recorded on the BD 107 can be reproduced.
  • FIG. 5 shows an outline of processing executed by the BD playback device 100.
  • the input reception unit 106 receives a signal indicating a reproduction start instruction based on a user operation (step S101).
  • the reproduction control unit 103 receives the instruction from the input receiving unit 106 that has received a signal indicating a reproduction start instruction, and executes processing for reading content information from the BD 107. Subsequently, the reproduction control unit 103 reads the content information and processes the read content information. At this time, the reproduction control unit 103 processes the content information so that the output unit 108 outputs the content without sound (silence reproduction processing, step S102).
  • any method may be used for outputting the content without sound.
  • By outputting the content without sound it is possible to eliminate the influence of vibration caused by sound on vibration detection of the BD playback device 100.
  • the vibration detection unit 104 acquires a servo signal generated in the process for reading the content information from the BD 107 from the reproduction control unit 103, detects vibration based on the acquired servo signal, and is detected at the vibration detection time VDT. and it outputs a vibration detection information including the number of vibration times N V (step S103).
  • step S103 the details of the vibration detection process (step S103) will be described with reference to FIG.
  • Initializing unit 113 the number of vibration times N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111 is reset to 0 and starts the timer 112 (step S111).
  • the sampling unit 114 acquires the TE signal from the reproduction control unit 103 until the vibration detection time VDT reaches T 1 (milliseconds) while referring to the timer 112 (step S112), and based on the acquired TE signal. Then, a vibration detection signal T SHOCK is generated (step S113).
  • the vibration detection signal T SHOCK is, for example, a signal of a specific frequency component included in the TE signal as described above, and allows the TE signal for a preset sampling time ST (milliseconds) to pass through the bandpass filter. Generated by.
  • the signal comparison unit 115 compares the magnitude of the vibration detection signal T SHOCK with a preset threshold value TV 1 and outputs information according to the comparison result (step S114). Specifically, when the magnitude of the vibration detection signal T SHOCK is greater than or equal to the threshold TV 1 (step S114; Yes), the signal comparison unit 115 outputs information indicating the determination result to the increment unit 116. When the vibration detection signal T SHOCK is less than the threshold TV 1 (step S114; No), the sampling unit 114 outputs information for continuing the sampling process (step S113).
  • the increment unit 116 obtains information indicating that the magnitude of the vibration detection signal T SHOCK is greater than or equal to the threshold TV 1 .
  • the increment unit 116 obtains the vibration number information stored in the vibration number storage unit 111. Subsequently, the increment unit 116 adds one to the number of vibrations N V indicated by the acquired vibration count information, (step of storing in the vibration frequency storage unit 111 information indicating the number of vibrations N V after addition as the vibration frequency information S115).
  • step S113 the sampling process (step S113) is performed, based on the sampled TE signal, the signal comparison process (step S114) and increments the number of oscillations N V Processing (step S115) is executed.
  • the increment unit 116 acquires information indicating that the vibration detection time VDT has reached T 1 from the timer 112 via the signal comparison unit 115, the increment unit 116 acquires vibration number information from the vibration number storage unit 111.
  • the increment unit 116 outputs vibration detection information including the acquired vibration frequency information (step S116). Thereby, a vibration detection process (step S103) is complete
  • the determination unit 105 acquires vibration detection information including vibration frequency information from the increment unit 116 of the vibration detection unit 104, determines the use of the BD playback device 100 based on the acquired information, Information indicating the discrimination result is output (step S104).
  • step S104 the details of the application determination process
  • the number of vibrations comparison section 121 compares acquired vibration detection information from the increment unit 116 (step S121), and a threshold value TV 2 which is set in advance as the number of vibrations N V included in the acquired vibration detection information, the comparison result The information shown is output (step S122).
  • Application determination unit 122 compares the result to obtain information, vibration in comparison results included in the information number N V threshold TV 2 When it is above (step S122; Yes), it determines that the use of the BD reproducing
  • the usage determining unit 122 outputs discrimination information indicating the determined usage (step S125). That is, the application determination unit 122, if the number of vibration times N V is the threshold value TV 2 or more; the determination information indicating that is conveying (step S122 Yes), the number of vibrations N V is less than the threshold value TV 2 In the case (step S122; No), discrimination information indicating that the application is for stationary use is output to the reproduction control unit 103 and stored in the discrimination information storage unit 101.
  • the reproduction control unit 103 acquires the discrimination information 101a from the discrimination unit 105 or the discrimination information storage unit 101, and acquires the mode information 102a corresponding to the acquired discrimination information 101a by referring to the mode information storage unit 102.
  • the reproduction control unit 103 performs normal content reproduction processing according to the mode indicated by the acquired mode information 102a (step S105).
  • the normal reproduction process is different from the silent reproduction process (step S102), and means that the content information is processed so as to be accompanied by the sound output at the volume determined by the user.
  • the playback control unit 103 determines whether a playback end instruction has been received based on an instruction from the input receiving unit 106 (step S106).
  • step S106 determines that a playback end instruction has not been received from the input receiving unit 106 (step S106; No).
  • step S105 the playback control unit 103 continues the normal playback process (step S105).
  • step S106 If the playback control unit 103 determines that a playback end instruction has been received from the input receiving unit 106 (step S106; Yes), the playback control unit 103 ends the process.
  • the series of processes from the silent reproduction process (step S102) to the application determination process (step S104) may be executed at any timing as long as the servo signal can be acquired.
  • the timing described is desirable.
  • the BD playback device 100 immediately after the playback start instruction receiving process (step S101), the silence playback process (step S102), the vibration detection process (step S103), and the application determination process (step S104). ) are executed sequentially. Immediately after the reproduction start instruction receiving process (step S101), for example such as spin-up processing of BD107, processing for reading content information from BD107 is executed. Therefore, no sound is output at this time. By executing a series of processes from the silence reproduction process (step S102) to the application determination process (step S104) at the timing of this embodiment, the sound of the content being reproduced is interrupted by the silence reproduction process (step S102). Can be prevented.
  • the BD playback apparatus 100 receives a command to play back the content of the BD 107 and detects vibration using a servo signal.
  • the servo signal is a signal generated for reproducing content in a general BD reproducing apparatus. Therefore, the BD playback device 100 does not need to be provided with a new sensor or the like in order to detect vibration. Therefore, it is possible to realize the BD playback device 100 that can detect vibration and determine the application with a simple and compact configuration.
  • the BD playback device 100 detects vibration in the absence of sound output, it can detect vibration without being affected by vibration due to sound output. Therefore, it is possible to accurately detect the vibration of the BD playback device 100.
  • the BD playback apparatus 100 detects a vibration having a magnitude greater than or equal to the threshold TV 1 as a vibration, it can prevent an application determination error due to a slight vibration.
  • a vibration detection process (step S103) and an application determination process (step S104) are executed.
  • the transport BD playback apparatus 100 When the BD playback apparatus 100 is used, that is, when a user inputs an instruction to play back content, the transport BD playback apparatus 100 often generates vibrations associated with transport. On the other hand, the large vibration as described above hardly occurs in the stationary BD reproducing apparatus 100. Therefore, when inputting an instruction to reproduce content, it is possible to detect the vibration and determine the application, thereby making it possible to accurately determine the application.
  • the BD playback device 100 determines whether the application is stationary or transport based on the vibration detection information, and determines the stationary mode and transport according to the determined use.
  • the playback process of the BD 107 is performed in one of the modes for use. As described in the present embodiment, in the transfer mode, some of the functions that can be used in the stationary mode are limited.
  • the transporting BD playback device 100 is used by being transported by being mounted on a car or being carried. Therefore, in general, the BD playback apparatus 100 for conveyance has a smaller screen and a smaller processing capability such as image processing than those for stationary use. Therefore, in the transport mode, for example, as Bonus View, while processing load on the BD playback apparatus 100 is increased, functional practical benefits poor a small screen is limited. On the other hand, for stationary use such as home use, a mode that can handle all functions is desirable.
  • the BD playback apparatus 100 it is possible to reproduce the content contained in BD107 in a mode suitable for the application of the BD reproduction device 100.
  • the transfer mode with limited functions for example, it may be set not to correspond to a new profile.
  • BD playback apparatus 100 according to this embodiment is for transport, use of the function is restricted. Therefore, it is possible to view content that uses the function of the new profile under a limited function without updating the firmware. Therefore, it is possible to eliminate or reduce the need to update the firmware of the transport BD playback apparatus 100.
  • the use of the BD playback device is set in advance, it may happen that the BD playback device erroneously tries to play back in the stationary mode even though the actual use is for transportation. If the firmware does not support playback in the transport mode, content using the new profile function cannot be played back.
  • the usage can be reliably determined, so that it is possible to accurately determine the actual usage and reproduce the content in a mode suitable for the usage.
  • the BD playback device 200 Similar to the BD playback device 100 according to the first embodiment, the BD playback device 200 according to the second embodiment of the present invention is a BD playback device that detects a vibration and discriminates a use in the absence of an audio output.
  • the BD playback device 200 executes silence determination processing instead of the silence playback processing executed by the BD playback device 100. That is, the BD playback device 200 determines whether or not there is silence during normal playback, and executes the vibration detection process and the application determination process when it is determined that there is no sound.
  • the BD playback device 200 has substantially the same configuration as the BD playback device 100, and includes a silence determination unit 201 in addition to the components included in the BD playback device 100. .
  • Silence determination unit 201 acquires the speech information indicating the speech portion included from the reproduction control unit 103 to the content BD107, it is determined whether or not silence based on audio information.
  • the playback control unit 103 receives the signal output from the input receiving unit 106 and executes normal playback processing (step S105).
  • the silence determination unit 201 acquires audio information of the content being reproduced from the reproduction control unit 103 (step S201). Subsequently, the silence determination unit 201 determines whether there is no sound (silence) included in the acquired sound information (step S202).
  • step S202 determines that there is no sound
  • step S103 determines that there is no sound
  • step S104 executes a use determination process
  • step S106 determines whether a reproduction end instruction has been accepted.
  • BD playback apparatus 200 for detecting vibration while there is no audio being played, it is possible to detect the vibration without interrupting the audio content being played by muted. Therefore, the sound to be reproduced is not reproduced, and comfortable viewing can be realized.
  • the BD playback device according to the third embodiment of the present invention is a BD playback device that detects vibrations and discriminates the application in the absence of audio output.
  • the BD playback device according to the present embodiment has the same configuration as the BD playback device 100 according to the first embodiment. Therefore, a diagram illustrating the configuration of the BD playback apparatus according to the present embodiment and a description of the configuration are omitted.
  • the BD playback device is characterized by the timing of executing the vibration detection process and the application determination process. Processing executed by the BD playback device according to the third embodiment will be described with reference to FIG.
  • the playback control unit 103 executes a spin-up process (step S301), which is one of processes for reading content information from the BD 107.
  • a spin-up process step S301
  • the reproduction control unit 103 controls the rotation of the BD 107 and generates and outputs a servo signal such as a TE signal.
  • the spin-up process (step S301) may be executed at any timing such as when the BD playback apparatus is turned on or when the input receiving unit 106 receives a playback start instruction based on a user operation. Good.
  • the vibration detection unit 104 executes a vibration detection process (step S103), the determination unit 105 executes an application determination process (step S104), and the reproduction control unit 103 executes a normal reproduction process (step S105).
  • a determination process (step S106) as to whether or not the reproduction control unit 103 has received a reproduction end instruction is executed.
  • BD playback apparatus executes the spinup process (step S301) vibration determination process in (step S103) and use judgment processing (step S104). Since the spin-up process (step S301) is executed before processing the read content information, the output unit 108 does not output the content. Therefore, vibration can be detected in the absence of sound output, and vibration can be accurately detected without being affected by vibration caused by sound.
  • the process of determining whether a processing and silence elimination of the volume is not required it is possible to simplify the process for accurately detecting the vibration.
  • the BD playback device according to the fourth embodiment of the present invention is a device that discriminates a use and plays back a BD in a mode corresponding to the determined use.
  • the BD playback device according to the present embodiment is different from the BD playback device according to the first embodiment in that it includes a sensor that detects vibration.
  • the BD playback device 400 includes a sensor 441 in addition to the components included in the BD playback device 100, and includes a vibration detection unit 404 instead of the vibration detection unit 104 according to the first embodiment. .
  • the sensor 441 is a sensor capable of detecting vibration, and is, for example, an acceleration sensor or an angular velocity (gyro) sensor.
  • the sensor 441 outputs a signal (sensor detection signal) indicating the magnitude of the detected vibration.
  • Vibration detecting unit 404 has the same configuration as the vibration detection unit 104 according to the first embodiment, to detect the vibration based on the signal, the vibration detection information including the number of vibrations N V detected in the vibration detection time VDT Is output. Unlike the vibration detection unit 104 according to the first embodiment, the vibration detection unit 404 acquires a sensor detection signal from the sensor 441 and generates vibration frequency information based on the sensor detection signal.
  • the processing executed by the BD playback device 400 is the same as the processing executed by the BD playback device 100 described with reference to FIGS.
  • the initialization unit (not shown) of the vibration detection unit 404 initializes the vibration detection using a signal from the reproduction control unit 103 that executes the silence reproduction process (step S102) as a trigger.
  • a process (step S111) is executed.
  • the sampling part of the vibration detection unit 404 performs a sampling process (step S113) based on the sensor detection signal obtained from the sensor 441.
  • the BD playback device 400 since the BD playback device 400 includes the sensor 441, vibration can be detected without using a signal from the playback control unit 103.
  • a signal from the reproduction control unit 103 that executes the silent reproduction process (step S102) as a trigger it is possible to detect vibration without sound output. As a result, vibration can be detected without being affected by vibration caused by the sound output.
  • the BD playback device includes a silence determination unit 201 of the BD playback device 200 according to the second embodiment in addition to the components included in the BD playback device 400 according to the fourth embodiment ( FIG. 8 and FIG. 11). Further, the BD playback device according to the present embodiment executes the same processing as the BD playback device 200 according to the second embodiment (see FIG. 9).
  • the silence determination unit 201 determines whether the content being played back is silent based on the audio information (step S202). When it is determined that there is (step S202; Yes), the vibration detection unit 404 executes a vibration detection process (step S103).
  • a BD playback device including the sensor 441 can detect vibration while there is no sound being played back. For this reason, it is possible to detect the vibration without interrupting the sound of the content being reproduced by silence. Therefore, the sound to be reproduced is not reproduced, and comfortable viewing can be realized.
  • the BD playback device Similar to the BD playback device 400 according to the fourth embodiment, the BD playback device according to the sixth embodiment of the present invention detects vibration based on the signal of the sensor, discriminates the use, and determines the use. This is a device for playing back a BD in a corresponding mode.
  • the BD playback device 600 according to the present embodiment will be described with reference to FIGS.
  • the BD playback device 600 includes a playback determination unit 651 in addition to the components included in the BD playback device 400 according to the fourth embodiment.
  • the reproduction determination unit 651 determines whether or not the reproduction control unit 103 is reproducing the content of the BD 107.
  • the reproduction determination unit 651 determines whether an instruction to turn on the power is received based on the instruction from the input reception unit 106 (step S651). When it is determined that an instruction to turn on the power is not received from the input receiving unit 106 (step S651; No), the reproduction determining unit 651 waits.
  • the playback determining unit 651 displays playback information indicating whether or not the content of the BD 107 is being played back. And based on the acquired reproduction information, it is determined whether or not the content is being reproduced (step S652).
  • Reproduction information may be information reproduction control unit 103 is generated during content playback, for example, specific signal indicating that it is the content playback may the like content information reproduction control unit 103 generates.
  • step S652 When it is determined that playback is in progress (step S652; Yes), the playback determination unit 651 waits.
  • the vibration detection unit 404 detects a vibration based on the sensor detection signal acquired from the sensor 441 using the signal from the reproduction determination unit 651 as a trigger, and the vibration frequency information. Is output (step S103).
  • step S104 the use determining process
  • step S651 determines whether an instruction to turn off the power has been received based on an instruction from the input receiving unit 106. (Step S653).
  • step S653 When it is determined that an instruction to turn off the power has not been received (step S653; No), the reproduction determination unit 651 executes a determination process (step S652) as to whether or not the content is being reproduced. If it is determined that an input for turning off the power has been received (step S653; Yes), the BD playback device 600 ends the process.
  • the vibration since the vibration is detected when the reproduction process is not executed, no sound is output when the vibration is detected. Therefore, it is possible to accurately detect vibration without being affected by vibration due to audio output.
  • the BD playback device Similar to the BD playback device 100 according to the first embodiment, the BD playback device according to the seventh embodiment of the present invention detects vibration based on the servo signal, determines the use, and according to the determined use. Is a device for playing back a BD in a different mode. BD playback apparatus according to the seventh embodiment, not the number of oscillations N V, to determine the application by the rate of vibration is detected (vibration detection rate, VDR).
  • VDR vibration detection rate
  • the BD playback device 700 will be described with reference to FIGS.
  • the BD playback device 700 has substantially the same configuration as the BD playback device 100, and instead of the vibration detection unit 104 and the determination unit 105 of the BD playback device 100, a vibration detection unit 704 and a determination unit. 705.
  • the vibration detection unit 704 outputs vibration detection information related to the detected vibration, similarly to the vibration detection unit 104. As shown in FIG. 15, the vibration detection unit 704 has a detailed configuration different from that of the vibration detection unit 104 according to the first embodiment.
  • the vibration detection unit 704 according to the present embodiment includes a sampling number storage unit 717 in addition to the components included in the vibration detection unit 104, and includes an initialization unit 713 and an increment unit 716 instead of the initialization unit 113 and the increment unit 116. Prepare.
  • Sampling count storage unit 717 stores a sampling count information indicating the number of times of sampling N S is the number of times the sampling process is performed to generate a vibration detection signal T SHOCK, it is realized by a RAM.
  • Initializing unit 713 as an initialization process for detecting the vibration, as well as starts the timer 112, and resets the number of vibration times information and sampling frequency information vibration frequency storage unit 111 stores.
  • Increment unit 716 acquires information indicating the comparison result of the signal comparison unit 115 increments the sampling number N S indicated by the number of sampling information stored in the sampling frequency storage unit 717. Also, the increment unit 716, according to the comparison result, increments the number of vibrations N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111. Furthermore, the increment unit 116 outputs a vibration detection information including the number of vibration times N V and the sampling number N S.
  • the determination unit 705 acquires vibration detection information from the vibration detection unit 704, and determines whether the use of the BD reproduction device 700 is for stationary use or for conveyance based on the acquired vibration detection information. The information indicating the discrimination result is output. As illustrated in FIG. 16, the determination unit 705 has a detailed configuration different from that of the determination unit 105 according to the first embodiment.
  • the determination unit 705 according to the present embodiment includes a detection rate calculation unit 723, a detection rate comparison unit 721, and an application determination unit 722.
  • Detection rate calculation section 723 refers to the vibration detection information obtained from the vibration detecting unit 704 calculates a value obtained by dividing the number of vibration times N V at sampling times N S as a vibration detection rate VDR.
  • the detection rate comparison unit 721 acquires vibration detection rate information indicating the vibration detection rate from the detection rate calculation unit 723, compares the vibration detection rate with a preset threshold TV 3, and outputs information indicating the comparison result. .
  • the usage determining unit 722 determines whether the usage of the BD playback device 700 is “for stationary” or “for conveying” based on the comparison result indicated by the information acquired from the detection rate comparing unit 721.
  • the information indicating is output.
  • FIG. 17 shows an outline of processing executed by the BD playback device 700.
  • the process executed by the BD playback apparatus 700 is substantially the same as the process executed by the BD playback apparatus 100, and details of the vibration detection process (step S703) and the application determination process (step S704) are described. Different. Each process will be described with reference to FIGS. 18 and 19.
  • the vibration detection process (step S703) is a process executed by the vibration detection unit 704, and details thereof are shown in FIG.
  • Initializing unit 713 the number of vibration times N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111 is reset to 0, the sampling number N S contained in the stored sampled frequency information to the sampling frequency storage unit 717 Reset to 0 and start the timer 112 (step S711).
  • Step S112 Sampling unit 114, with reference to the timer 112, until the vibration detection time VDT is T 1 (step S112), and the sampling process is performed (step S113). Subsequently, the signal comparison unit 115 executes a comparison determination process (step S114) of the vibration detection signal T SHOCK .
  • the increment unit 716 performs increment processing of the number of vibrations N V a (step S115). Specifically, the increment unit 716 adds one to the number of vibrations N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111, the vibration frequency storage unit 111 the number of vibrations N V after addition as the vibration frequency information (Step S115).
  • Step S717 If the vibration detection signal T SHOCK is less than the threshold value TV 1 (Step S114; No), or after the increment processing of the vibration number N V (step S115), the increment unit 716, increment processing of the sampling number N S ( Step S717) is executed. Specifically, the increment unit 716 adds 1 to the sampling number N S indicated by the number of sampling information stored in the sampling frequency storage unit 717, a sampling frequency storage unit 717 the sampling number N S after the addition as the sampling frequency information (Step S717).
  • Increment unit 716 the vibration detection time VDT via a signal comparator 115 acquires the information indicating that becomes T 1, the number of vibration times information and the sampling frequency information from the vibration frequency storage unit 111 and a sampling frequency storage unit 717 get. Subsequently, the increment unit 716 outputs the vibration detection information including the number of vibration times N V and the sampling number N S indicated by the acquired information group (step S116). Thereby, the vibration detection process (step S703) ends.
  • the application determination process (step S704) is a process executed by the determination unit 705, and details thereof are shown in FIG.
  • Detection rate calculation section 723 acquires the vibration detection information from the increment unit 716 (step S721), by dividing the number of vibrations N V included in the acquired vibration detection information at the sampling times N S, calculates the vibration detection rate (Step S726).
  • Detection rate comparison unit 721 acquires the vibration detection rate information indicating a vibration detection rate from the detection rate calculation section 723 compares the threshold value TV 3 set in advance and the vibration detection rate included in the acquired vibration detection rate information Then, information indicating the comparison result is output (step S722).
  • the use determining unit 722 acquires information indicating the comparison result, and when the vibration detection rate is equal to or higher than the threshold TV 3 in the comparison result included in the information (step S722; Yes), the use determining unit 722 determines that the use is for conveyance. (Step S723). Further, when the vibration detection rate is less than the threshold TV 3 in the comparison result (step S722; No), the use determining unit 722 determines that the use is for stationary use (step S724).
  • the usage determining unit 722 outputs discrimination information indicating the determined usage (step S725).
  • the use determining unit 722 displays discriminating information indicating that it is for conveyance when the vibration detection rate is greater than or equal to the threshold TV 3 (step S722; Yes), and the vibration detection rate is less than the threshold TV 3 ( In step S722; No), discrimination information indicating that the application is for stationary use is output to the discrimination information storage unit 101 and the reproduction control unit 103.
  • the BD playback device 700 determines the application based on the vibration detection rate.
  • the present embodiment is an example in which the application determination method based on the vibration detection rate is applied to the BD playback device 100 according to the first embodiment.
  • This application determination method is applied to the BD playback device according to the second to sixth embodiments. It can also be applied to. As a result, the same effects as those of the embodiments can be obtained.
  • the BD playback apparatus has been described as an example. However, each embodiment can be applied to a BD recording apparatus that records content information indicating content on a medium.
  • FIG. 20 shows a configuration example of a BD recording apparatus that detects vibrations by the same process as in the first embodiment and discriminates the application.
  • the BD recording apparatus 800 includes a discrimination information storage unit 101, a mode information storage unit 102, a vibration detection unit 104, a discrimination unit 105, an input reception unit 106, an imaging unit 851, and a recording.
  • a control unit 803 and an output unit 808 are provided.
  • the discrimination information storage unit 101 and the mode information storage unit 102 store discrimination information 101a and mode information 102a, respectively, as in the first embodiment.
  • Vibration detection unit 104 similarly to the first embodiment, information indicating the number of vibrations N V generated on BD recorder 800, and outputs as the vibration detection information regarding the vibration of the BD recorder 800.
  • the vibration detection information acquires, based on the number of vibrations N V included in the acquired vibration detection information, conveying the application of the BD recorder 800 is accompanied by certain more oscillating It is discriminated whether it is for use or stationary for a certain amount of vibration.
  • the input receiving unit 106 receives a signal input by an operation by a user or the like, and outputs the received signal.
  • the imaging unit 851 captures an image and generates content information indicating the captured content.
  • the imaging unit 851 includes, for example, a lens and an imaging element.
  • the recording control unit 803 When the discriminating unit 105 determines that the recording control unit 803 is for transport, the recording control unit 803 generates content information in a transport mode in which the function is limited compared to the stationary mode suitable for stationary playback. Control for recording the obtained content information on the BD 107 is executed.
  • the output unit 808 acquires the content information generated by the recording control unit 803 and records the content information on the BD 107.
  • the BD recording apparatus 800 according to the present modification is a modification of the BD playback apparatus 100 according to the first embodiment, but this modification can also be applied to the BD playback apparatus according to the second to seventh embodiments. .
  • Modification 2 In each embodiment, the case where the medium on which information to be reproduced or recorded is recorded is a BD, but the medium may be an optical disk such as a DVD or a CD.
  • the transport mode exemplified in each embodiment has a different reproduction (recording) method than the stationary mode, and preferably a BD reproduction (recording) device in the content reproduction (recording) process than the stationary mode.
  • a reproduction method with a small load on the.
  • the first mode which is a playback method suitable for the first application
  • the first mode can be set so that it can be processed by a reproduction (recording) device having a lower specification than the second mode, which is a reproduction method suitable for the second application. Therefore, the structure of the reproducing (recording) apparatus can be simplified and made compact.
  • Such an effect can be similarly obtained even when a mode in which a load applied to the BD playback (recording) apparatus is different is adopted in the content playback (recording) process. That is, in a mode with a small processing load, it is possible to eliminate the need to update the firmware, or to reduce the frequency of updating the firmware. Further, in a mode with a small processing load, processing can be performed with a reproduction (recording) apparatus having a lower specification than in a mode with a small processing load, and the structure of the reproduction (recording) apparatus can be simplified and made compact.
  • Modification 3 In each embodiment, the case where the content includes sound and a moving image has been described as an example. However, the content may include only one of the sound and the moving image.
  • Modification 4 In the embodiment, the case where the vibration detection unit outputs the vibration detection information based on the servo signal or the signal output from the sensor has been described as an example. However, examples of outputting the vibration detection information related to the vibration of the playback device are described here. Not limited to. For generation of the vibration detection information, a signal specific to the device provided with the BD playback or recording device may be used.
  • the vibration detector uses a pulse signal generated by a pulse generator for detecting a vehicle speed provided in a general automobile to display the vehicle speed on a speedometer. Also good.
  • the vibration detection unit outputs vibration detection information indicating that when a pulse signal is detected.
  • determines a use as an object for conveyance, when the vibration detection information which shows having detected the pulse signal is acquired.
  • the result is updated every time the application determining process is performed.
  • the determined result may be retained, and may be retained, for example, unless the user gives an update instruction.
  • the determination unit may determine the use and update the determination information in the determination information storage unit.
  • the use is determined for each vibration detection time VDT. However, the use may be determined based on a sampling result for detecting vibrations over a certain period, time, or number of times.
  • the determination unit determines the use and updates the determination information in the determination information storage unit based on the determination result To do.
  • the determination unit determines that the sampling history of a certain period, time, or number of times is not accumulated, the determination unit does not update the determination information in the determination information storage unit.
  • This modification can be applied to the apparatuses and methods described in the first to seventh embodiments and other modifications. According to this modification, the use is determined based on the vibration history, so that the influence of accidental vibration on the determination is reduced. Therefore, it is possible to reduce discrimination errors.
  • An initial value may be set in advance in the discrimination information 101a. It is preferable that the initial value of the determination information 101a is set for conveyance. If stationary is set as the initial value, there is a possibility that the content cannot be reproduced because the firmware is not updated when the actual use is for transportation. By setting the value for conveyance as an initial value, the content is reproduced in the conveyance mode until at least the first use determination process is executed. Therefore, it is possible to prevent the content from being unable to be reproduced because the firmware has not been updated.
  • the initial value of the discrimination information 101a may be set for conveyance immediately after receiving an instruction to turn on or off the power from the user.
  • FIG. 21 shows an example of a physical configuration of the BD playback device 100, 200, 400, 600, 700 according to each embodiment of the present invention.
  • the BD playback devices 100, 200, 400, 600, and 700 include a storage unit 901, a sensor 441, a processor 902, and an output unit 108 (109, 110).
  • Each element is communicably connected via an internal bus 903.
  • each element is one, but each element may be divided into a plurality of elements.
  • the storage unit 901 is a flash memory, a hard disk drive, or the like, corresponds to the discrimination information storage unit 101 and the mode information storage unit 102 according to each embodiment, and stores discrimination information 101a and mode information 102a.
  • the storage unit 901 may store each threshold, a software program executed by the processor 902, and the like.
  • the sensor 441 is an acceleration sensor, an angular velocity (gyro) sensor, or the like used in the fourth, fifth, and sixth embodiments.
  • the sensor 441 may not be provided in the BD playback devices 100, 200, and 700 according to the first, second, third, and seventh embodiments.
  • the processor 902 is an arithmetic processing unit that executes a software program stored in the storage unit 901 and a program incorporated therein.
  • the processor 901 exhibits the functions of the reproduction control unit 103, the vibration detection units 104, 404, and 704, the determination units 105 and 705, and the input reception unit 106 according to each embodiment by executing these programs.
  • the output unit 108 includes a liquid crystal monitor that outputs an image, a plasma display (image output unit 109), and a speaker (audio output unit 110) that outputs audio.
  • the output unit 108 may be built in the BD playback device 100, 200, 400, 600, 700 as shown in FIG. 21, but is detachably provided outside the BD playback device 100, 200, 400, 600, 700. May be.
  • FIG. 22 shows an example of a physical configuration of a BD recording apparatus 800 according to an embodiment of the present invention.
  • the BD recording apparatus 800 includes a storage unit 1001, a processor 1002, an output unit 808, and an imaging unit 851.
  • Each element is communicably connected via an internal bus 1003.
  • each element is one, but each element may be divided into a plurality of elements.
  • sensors such as an acceleration sensor and an angular velocity (gyro) sensor may be provided as appropriate.
  • the storage unit 1001 is a flash memory, a hard disk drive, or the like, corresponds to the determination information storage unit 101 and the mode information storage unit 102 according to the eighth embodiment, and stores the determination information 101a and the mode information 102a.
  • the storage unit 1001 may store each threshold value, a software program executed by the processor 1002, and the like.
  • the processor 1002 is an arithmetic processing unit that executes a software program stored in the storage unit 1001 and a program incorporated therein.
  • the processor 1002 performs the functions of the recording control unit 803, the vibration detection unit 104, the determination unit 105, and the input reception unit 106 according to the eighth embodiment by executing these programs.
  • the output unit 808 is a part that acquires content information and records the content information on the BD 107, and includes an optical device such as a prism and a lens, a laser diode, and a control unit that controls the operation thereof.
  • the present invention is arbitrarily combined with each embodiment and each modification as long as there is no contradiction, and further, each embodiment, each modification, and a combination thereof without departing from the gist of the present invention. Includes changes. Further, the present invention may be realized as a program that causes a computer to execute steps included in a method according to each embodiment, each modification, and a combination thereof. Furthermore, the present invention may be realized as a storage medium in which such a program is recorded so as to be readable by a computer.

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  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

A reproduction device according to the present invention is provided with a determination unit (105) for obtaining vibration detection information associated with the vibration of a reproduction device and determining on the basis of the obtained vibration detection information either one of two applications that are an application under a first environment where the reproduction device is involved in a given level or more of vibration and an application under a second environment where the reproduction device is not involved in a given level or more of vibration; and a reproduction control unit (103) for processing content information in a first mode when the determination unit (105) determines the application under the first environment, the first mode being different in functions used from a second mode which is suitable for the reproduction in the application under the second environment.

Description

再生装置、記録装置、再生方法、プログラム、及び情報記録媒体REPRODUCTION DEVICE, RECORDING DEVICE, REPRODUCTION METHOD, PROGRAM, AND INFORMATION RECORDING MEDIUM
　本発明は、媒体に記録されたコンテンツを再生する再生装置、コンテンツを媒体に記録する記録装置、再生方法、プログラム、及び情報記録媒体に関する。 The present invention relates to a playback apparatus that plays back content recorded on a medium, a recording apparatus that records content on a medium, a playback method, a program, and an information recording medium.
　ＢＤ（Ｂｌｕ－ｒａｙ　Ｄｉｓｃ）、ＤＶＤ（Ｄｉｇｉｔａｌ　Ｖｅｒｓａｔｉｌｅ　Ｄｉｓｃ）、ＣＤ（Ｃｏｍｐａｃｔ　Ｄｉｓｃ）等といった光ディスクに記録されたコンテンツを再生する再生装置や、光ディスクにコンテンツを記録する記録装置が提案されている（例えば、特許文献１参照。）。 Proposals have been made for playback devices that play back content recorded on an optical disc such as BD (Blu-ray Disc), DVD (Digital Versatile Disc), CD (Compact Disc), etc., and recording devices that record content on an optical disc (for example, , See Patent Document 1).
　光ディスクには種々の規格があり、随時新しい規格が定められる。例えば、ＢＤの場合、Ｐｒｏｆｉｌｅ１．１、Ｐｒｏｆｉｌｅ２．０などの規格（プロファイル）がある。Ｐｒｏｆｉｌｅ１．１は、Ｐｉｃｔｕｒｅ－ｉｎ－Ｐｉｃｔｕｒｅ、及びＶｉｒｔｕａｌ　Ｐａｃｋａｇｅを含むＢｏｎｕｓ　Ｖｉｅｗと言われる機能を提供する。Ｐｒｏｆｉｌｅ２．０は、ＢＤ－Ｊ　Ｎｅｔｗｏｒｋ　Ａｃｃｅｓｓ（Ｂｌｕ－ｒａｙ　Ｄｉｓｃ　Ｊａｖａ（登録商標））、及びＰｒｏｇｒｅｓｓｉｖｅ　Ｐｌａｙｌｉｓｔを含むＢＤ－Ｌｉｖｅと言われる機能を提供する。 There are various standards for optical discs, and new standards are defined as needed. For example, in the case of BD, there are standards (profiles) such as Profile 1.1 and Profile 2.0. Profile 1.1 provides a function called Bonus View including Picture-in-Picture and Virtual Package. Profile 2.0 provides a function called BD-Live including BD-J Network Access (Blu-ray Disc Java (registered trademark)) and Progressive Playlist.
　再生装置や記録装置は、光ディスクの規格に適合するように製造される。しかし、新しい規格のコンテンツが記録された光ディスクを再生するためには、再生装置が保持するファームウェアを更新する必要がある。記録装置の場合も同様に、新しい規格に従ってコンテンツを光ディスクに記録するには、記録装置が保持するファームウェアを更新する必要がある。 Reproduction devices and recording devices are manufactured to conform to optical disc standards. However, in order to play back an optical disc in which content of a new standard is recorded, it is necessary to update the firmware held by the playback device. Similarly, in the case of a recording device, in order to record content on an optical disc in accordance with a new standard, it is necessary to update the firmware held by the recording device.
　例えば、ＢＤ再生装置の場合、新しいプロファイルに対応するための新たなファームウェアが月２回程度提供されるのが現状である。また、プロファイルの中には、Ｐｒｏｆｉｌｅ１．１のＶｉｒｔｕａｌ　Ｐａｃｋａｇｅのように、対応が必須とされるものもある。そのため、月１回程度の更新が必要である。ＢＤ再生装置のファームウェアの更新には、ＣＤ、ＤＶＤ、フラッシュメモリなどの記憶媒体を使用する方法が採用されてもよいが、更新頻度が高いため一般にネットワーク回線を介する方法が採用される。 For example, in the case of a BD playback device, new firmware is provided about twice a month to support a new profile. Some profiles, such as the Profile 1.1 Virtual Package, must be supported. Therefore, it is necessary to update about once a month. For updating the firmware of the BD playback apparatus, a method using a storage medium such as a CD, a DVD, or a flash memory may be employed. However, since the update frequency is high, a method via a network line is generally employed.
　また、新しい規格に対応するために、装置の構成に追加又は変更が必要とされる場合もある。上述のＶｉｒｔｕａｌ　Ｐａｃｋａｇｅに対応するには所定以上のメモリが必要である。そのため、そのメモリを備えないＢＤ再生装置の場合、ＢＤ再生装置の内部又は外部にメモリを追加する必要がある。 Also, there are cases where additions or changes are required in the device configuration in order to comply with the new standard. More than a predetermined amount of memory is required to support the above-mentioned Virtual Package. Therefore, in the case of a BD playback device that does not include the memory, it is necessary to add a memory inside or outside the BD playback device.
特開２０１０－１４６６９５号公報JP 2010-146695 A
　本発明は、振動に関する振動検出情報に基づいて用途を判別し、用途が一定以上の振動を伴う第１用途であると判別した場合には、第２モードとは利用する機能が異なる第１モードでコンテンツを再生又は記録することにより、ファームウェアの更新ができない環境、又はファームアップの回数が少ない環境であっても、簡易な構造を有するコンパクトな再生装置、記録装置、再生方法、プログラム、及び情報記録媒体を提供することを目的とする。 In the present invention, when a use is determined based on vibration detection information related to vibration and the use is determined to be a first use with a certain level of vibration, the first mode has a different function from the second mode. Even in an environment where firmware cannot be updated by playing back or recording content, or even in an environment where the number of firmware upgrades is small, a compact playback device, recording device, playback method, program, and information having a simple structure An object is to provide a recording medium.
　上記の目的を達成するため、本発明の第１の観点に係る再生装置は、
　再生装置の振動に関する振動検出情報を取得し、取得した振動検出情報に基づいて、再生装置が一定以上の振動を伴う第１の環境下での用途と一定以上の振動を伴わない第２の環境下での用途とのいずれであるかを判別する判別手段と、
　前記判別手段によって第１の環境下での用途であると判別された場合に、第２の環境下での用途での再生に適した第２モードとは利用する機能が異なる第１モードで、コンテンツ情報を処理する再生制御手段と、
　を備えることを特徴とする。 In order to achieve the above object, a playback apparatus according to the first aspect of the present invention provides:
The vibration detection information related to the vibration of the playback device is acquired, and based on the acquired vibration detection information, the playback device is used in a first environment with a certain level of vibration and the second environment does not have a certain level of vibration. A discriminating means for discriminating whether the usage is below or
When it is determined by the determination means that the application is in the first environment, the second mode suitable for playback in the application in the second environment is different from the second mode in the function used, Playback control means for processing content information;
It is characterized by providing.
　前記第１モードは、前記第２モードよりも再生に利用する機能が制限された再生モードであってもよい。 The first mode may be a playback mode in which functions used for playback are more limited than in the second mode.
　さらに再生装置の振動に関する振動検出情報を出力する振動検出手段を備え、
　前記振動検出手段は、再生装置に生じた振動を検出し、検出された振動回数を含む振動検出情報を出力し、
　前記判別手段は、振動検出情報に含まれる振動回数に基づいて、再生装置の用途が第１用途と第２用途のいずれであるかを判別してもよい。 Furthermore, it has a vibration detection means for outputting vibration detection information related to the vibration of the playback device,
The vibration detection means detects vibration generated in the playback device, and outputs vibration detection information including the detected number of vibrations,
The discriminating unit may discriminate whether the usage of the reproducing apparatus is the first usage or the second usage based on the number of vibrations included in the vibration detection information.
　前記再生制御手段は、媒体からコンテンツ情報を読み取るための処理を実行して、前記処理においてサーボ信号を出力し、
　前記振動検出手段は、サーボ信号を前記再生制御手段から取得し、取得したサーボ信号に基づいて閾値以上の大きさの振動を検出し、検出された振動回数を含む振動検出情報を出力してもよい。 The reproduction control means executes a process for reading content information from the medium, and outputs a servo signal in the process,
The vibration detection unit may acquire a servo signal from the reproduction control unit, detect a vibration having a magnitude greater than a threshold value based on the acquired servo signal, and output vibration detection information including the detected number of vibrations. Good.
　前記振動検出手段は、振動を検出するセンサを有し、前記センサからの信号に基づいて閾値以上の大きさの振動を検出し、検出された振動回数を含む振動検出情報を出力してもよい。 The vibration detection means includes a sensor for detecting vibration, and detecting the vibrations of greater than or equal to the threshold size based on the signal from the sensor may output a vibration detection information including the detected vibration number .
　さらに、音声を出力する音声出力手段と、を備え、
　前記振動検出手段は、前記音声出力手段から出力される音声がない場合に、振動を検出し、振動検出情報を出力してもよい。 And voice output means for outputting voice,
The vibration detection means may detect vibration and output vibration detection information when there is no sound output from the sound output means.
　前記再生制御手段は、前記振動検出手段が振動を検出する場合に、前記音声出力手段から音声が出力されないように制御してもよい。 The reproduction control means may perform control so that no sound is output from the sound output means when the vibration detection means detects vibration.
　さらに、コンテンツ情報のうち、コンテンツに含まれる音声を示す音声情報を前記再生制御手段から取得し、取得した音声情報に基づいて、再生中のコンテンツに音声が含まれるか否かを判断する無音判断手段を備え、
　前記振動検出手段は、前記無音判断手段によって音声が含まれないと判断された場合に、振動を検出し、振動検出情報を出力してもよい。 Furthermore, silence determination for acquiring audio information indicating audio included in the content from the reproduction control unit and determining whether or not the content being reproduced includes audio based on the acquired audio information. With means,
The vibration detection means may detect vibration and output vibration detection information when the silence determination means determines that no sound is included.
　前記振動検出手段は、前記再生制御手段が媒体に記録されたコンテンツ情報を読み取るための処理を実行する間に、振動を検出し、振動検出情報を出力してもよい。 The vibration detection means, while the regeneration control means executes a process for reading content information recorded in the medium, to detect the vibration may output a vibration detection information.
　さらに、コンテンツの再生中であるか否かを示す再生情報を前記再生制御手段から取得し、取得した再生情報に基づいて、コンテンツの再生中であるか否かを判断する再生判断手段を備え、
　前記振動検出手段は、前記再生判断手段によってコンテンツの再生中でないと判断された場合に、振動を検出し、振動検出情報を出力してもよい。 Furthermore, it comprises reproduction determination means for obtaining reproduction information indicating whether or not the content is being reproduced from the reproduction control means, and determining whether or not the content is being reproduced based on the obtained reproduction information,
The vibration detection unit may detect vibration and output vibration detection information when the reproduction determination unit determines that the content is not being reproduced.
　また、本発明の第２の観点に係る記録装置は、
　記録装置の振動に関する振動検出情報を前記振動検出情報を取得し、取得した振動検出情報に基づいて、記録装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを判別する判別手段と、
　前記判別手段によって第１用途であると判別された場合に、第２用途での記録に適した第２モードとは利用する機能が異なる第１モードでコンテンツ情報を生成し、生成したコンテンツ情報を媒体に記録するための制御を実行する記録制御手段と、
　生成されたコンテンツ情報を前記記録制御手段から取得し、媒体にコンテンツ情報を記録する出力手段とを備える
　ことを特徴とする。 A recording apparatus according to the second aspect of the present invention is
The vibration detection information related to the vibration of the recording apparatus is acquired as the vibration detection information. Based on the acquired vibration detection information, the use of the recording apparatus is a first application that involves a certain level of vibration and a second that does not involve a certain level of vibration. A discriminating means for discriminating between the usage and the usage;
When it is determined by the determining means that the application is the first use, content information is generated in the first mode that is different from the second mode suitable for recording in the second application, and the generated content information is Recording control means for executing control for recording on a medium;
It further comprises output means for acquiring the generated content information from the recording control means and recording the content information on a medium.
　また、本発明の第３の観点に係る再生方法は、
　再生装置の振動に関する振動検出情報に基づき、再生装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを判別し、
　第１用途であると判別された場合に、第２用途での再生に適した第２モードとは利用する機能が異なる第１モードで、媒体に記録されたコンテンツ情報を読み取る
　ことを特徴とする。 A reproduction method according to the third aspect of the present invention is as follows.
Based on the vibration detection information relating to the vibration of the playback device, it is determined whether the usage of the playback device is a first usage with a certain level of vibration or a second usage without a certain level of vibration,
The content information recorded on the medium is read in the first mode, which is different from the second mode suitable for reproduction in the second use when it is determined that the use is the first use. .
　また、本発明の第４の観点に係るプログラムは、
　再生装置において実行させるプログラムにおいて、
　振動検出情報を取得し、前記取得した振動検出情報に基づいて、再生装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを判別させ、
　第１用途であると判別された場合に、第２用途での再生に適した第２モードとは利用する機能が異なる第１モードで、媒体に記録されたコンテンツ情報を読み取るための処理を実行させてコンテンツ情報の読み取りを実行させ、読み取ったコンテンツ情報を処理させることをコンピュータに実行させる
　ことを特徴とする。 A program according to the fourth aspect of the present invention is:
In a program to be executed on a playback device,
Vibration detection information is acquired, and based on the acquired vibration detection information, it is determined whether the application of the playback device is a first application that involves a certain level of vibration or a second application that does not involve a certain level of vibration. Let
When it is determined to be the first application, a process for reading the content information recorded on the medium is executed in the first mode, which is different from the second mode suitable for reproduction in the second application. The content information is read, and the computer is caused to process the read content information.
　また、本発明の第５の観点に係る情報記録媒体は、
　振動検出情報を取得し、前記取得した振動検出情報に基づいて、再生装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを制御部に判別させ、
　第１用途であると判別された場合に、再生装置に第２用途での再生に適した第２モードとは利用する機能が異なる第１モードで、媒体に記録されたコンテンツ情報を読み取るための処理を実行させてコンテンツ情報の読み取りを実行させ、読み取ったコンテンツ情報を処理させることを実行させるプログラムを記録する。 An information recording medium according to the fifth aspect of the present invention is
Acquire vibration detection information and control whether the application of the playback device is a first application involving a certain level of vibration or a second application not involving a certain level of vibration based on the acquired vibration detection information. Discriminate
When the content information recorded on the medium is read in the first mode, which is different from the second mode suitable for reproduction in the second usage in the reproduction device when it is determined as the first usage. A program for executing the processing to execute reading of the content information and processing the read content information is recorded.
　本発明によれば、再生装置又は記録装置は、振動に関する振動検出情報に基づいて用途を判別し、用途が一定以上の振動を伴う第１用途であると判別した場合には、第２モードとは利用する機能が異なる第１モードでコンテンツを再生又は記録することができる。 According to the present invention, the playback device or the recording device discriminates the use based on the vibration detection information related to the vibration, and when it is discriminated that the use is the first use with a certain level of vibration, Can play or record content in the first mode, which uses different functions.
本発明の第１実施形態に係るＢＤ再生装置の構成を示す図である。It is a figure which shows the structure of the BD reproducing | regenerating apparatus concerning 1st Embodiment of this invention. モード情報記憶部に記憶されたモード情報の一例を示す図である。It is a figure which shows an example of the mode information memorize | stored in the mode information storage part. 第１実施形態に係る振動検出部の詳細な構成を示す図である。It is a figure which shows the detailed structure of the vibration detection part which concerns on 1st Embodiment. 第１実施形態に係る判別部の詳細な構成を示す図である。It is a figure which shows the detailed structure of the discrimination | determination part concerning 1st Embodiment. 第１実施形態に係るＢＤ再生装置が実行する処理のフローチャートである。It is a flowchart of the process which the BD reproducing | regenerating apparatus concerning 1st Embodiment performs. 第１実施形態に係る振動検出処理の詳細を示すフローチャートである。It is a flowchart which shows the detail of the vibration detection process which concerns on 1st Embodiment. 第１実施形態に係る用途判別処理の詳細を示すフローチャートである。It is a flowchart which shows the detail of the use determination process which concerns on 1st Embodiment. 本発明の第２実施形態に係るＢＤ再生装置の構成を示す図である。It is a figure which shows the structure of the BD reproducing | regenerating apparatus concerning 2nd Embodiment of this invention. 第２実施形態に係るＢＤ再生装置が実行する処理のフローチャートである。It is a flowchart of the process which the BD reproducing | regenerating apparatus concerning 2nd Embodiment performs. 本発明の第３実施形態に係るＢＤ再生装置が実行する処理のフローチャートである。It is a flowchart of the process which the BD reproducing | regenerating apparatus concerning 3rd Embodiment of this invention performs. 本発明の第４実施形態に係るＢＤ再生装置の構成を示す図である。It is a figure which shows the structure of the BD reproducing | regenerating apparatus concerning 4th Embodiment of this invention. 本発明の第６実施形態に係るＢＤ再生装置の構成を示す図である。It is a figure which shows the structure of the BD reproducing | regenerating apparatus concerning 6th Embodiment of this invention. 第６実施形態に係るＢＤ再生装置が実行する処理のフローチャートである。It is a flowchart of the process which the BD reproducing | regenerating apparatus concerning 6th Embodiment performs. 本発明の第７実施形態に係るＢＤ再生装置の構成を示す図である。It is a figure which shows the structure of the BD reproducing | regenerating apparatus concerning 7th Embodiment of this invention. 第７実施形態に係る振動検出部の詳細な構成を示す図である。It is a figure which shows the detailed structure of the vibration detection part which concerns on 7th Embodiment. 第７実施形態に係る判別部の詳細な構成を示す図である。It is a figure which shows the detailed structure of the discrimination | determination part concerning 7th Embodiment. 第７実施形態に係るＢＤ再生装置が実行する処理のフローチャートである。It is a flowchart of the process which the BD reproducing | regenerating apparatus concerning 7th Embodiment performs. 第７実施形態に係る振動検出処理の詳細を示すフローチャートである。It is a flowchart which shows the detail of the vibration detection process which concerns on 7th Embodiment. 第７実施形態に係る用途判別処理の詳細を示すフローチャートである。It is a flowchart which shows the detail of the application determination process which concerns on 7th Embodiment. 本発明に係るＢＤ記録装置が備える構成の一例を示す図である。It is a figure which shows an example of the structure with which the BD recording device which concerns on this invention is provided. 本発明に係るＢＤ再生装置の物理的構成の一例を示す図である。It is a figure which shows an example of the physical structure of the BD reproducing | regenerating apparatus concerning this invention. 本発明に係るＢＤ記録装置の物理的構成の一例を示す図である。It is a figure which shows an example of the physical structure of the BD recording device based on this invention.
　以下、本発明の実施形態について、図面を参照しながら説明する。なお、全図を通じて、同一の構成要素及び処理には同一の符号を付す。また、全実施形態を通じて、同一の構成要素及び処理について重複する説明は省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component and process throughout a figure. Moreover, the description which overlaps about the same component and process is abbreviate | omitted through all embodiment.
（第１実施形態）
本発明の第１実施形態に係るＢＤ（Ｂｌｕｅ－ｒａｙ　Ｄｉｓｃ）再生装置１００について、図１～図７を参照して説明する。 (First embodiment)
A BD (Blue-ray Disc) playback apparatus 100 according to a first embodiment of the present invention will be described with reference to FIGS.
　ＢＤ再生装置１００は、媒体としてのＢＤに記録されたコンテンツ情報が示すコンテンツを再生する装置であって、コンテンツを読み取るための処理を実行する時に生成されるサーボ信号を用いて振動を検出し、検出した振動回数に基づいて用途を判別する。 The BD playback device 100 is a device that plays back content indicated by content information recorded on a BD as a medium, detects vibration using a servo signal generated when executing processing for reading content, The use is determined based on the detected number of vibrations.
　ＢＤ再生装置１００は、図１に示すように、判別情報記憶部１０１と、モード情報記憶部１０２とを備える。各記憶部１０１，１０２は、ハードディスク、フラッシュメモリなどの記憶媒体により実現される。 The BD playback device 100 includes a discrimination information storage unit 101 and a mode information storage unit 102 as shown in FIG. Each of the storage units 101 and 102 is realized by a storage medium such as a hard disk or a flash memory.
　判別情報記憶部１０１は、判別情報１０１ａを記憶している。判別情報１０１ａは、ＢＤ再生装置１００により判別されたＢＤ再生装置１００の用途を示す情報である。本実施形態では用途として、一定以上の振動を伴う環境下での用途である搬送用（第１用途）と、一定以上の振動を伴わない環境下での用途である据置用（第２用途）を例に説明する。 The discrimination information storage unit 101 stores discrimination information 101a. The discrimination information 101a is information indicating the use of the BD playback device 100 determined by the BD playback device 100. In the present embodiment, as applications, for transportation (first application) that is an application in an environment with a certain level of vibration and for stationary (second application) that is an application in an environment that does not involve a certain level of vibration. Will be described as an example.
　ここで、据置用とは、一般家庭、オフィスなどで一定の位置にＢＤ再生装置１００を設置して使用する用途である。搬送用とは、携帯用、車載用など移動型の装置に設置されて使用する用途である。車載用の場合、ＢＤ再生装置１００はカーナビゲーションシステムなどに組み込まれていてもよい。 Here, the term “for stationary use” refers to an application in which the BD playback device 100 is installed and used at a fixed position in a general home or office. The term “for transportation” refers to an application that is used by being installed in a mobile device such as a portable device or a vehicle-mounted device. In the case of in-vehicle use, the BD playback device 100 may be incorporated in a car navigation system or the like.
　図１には、判別情報記憶部１０１が判別情報１０１ａとして「搬送用」を示す情報を記憶している例を示す。 FIG. 1 shows an example in which the discrimination information storage unit 101 stores information indicating “for transport” as discrimination information 101a.
　モード情報記憶部１０２は、ＢＤ再生装置１００の用途に適したコンテンツの再生方式（モード）を示すモード情報１０２ａを記憶している。モードは、利用者などによってＢＤ再生装置１００が判別する用途に応じて予め定められ、それを示すモード情報１０２ａとしてモード情報記憶部１０２に予め記憶される。 The mode information storage unit 102 stores mode information 102a indicating a content playback method (mode) suitable for the use of the BD playback device 100. The mode is determined in advance according to the use that is determined by the BD playback apparatus 100 by the user or the like, and is stored in advance in the mode information storage unit 102 as mode information 102a indicating the mode.
　本実施形態のモード情報１０２ａは、図２に示すように、搬送用に適した再生方式である搬送用モード（第１モード）を示す情報と、据置用に適した再生方式である据置用モード（第２モード）を示す情報とを含む。 As shown in FIG. 2, the mode information 102a of the present embodiment includes information indicating a transport mode (first mode) that is a playback method suitable for transport, and a stationary mode that is a playback method suitable for stationary. Information indicating (second mode).
　据置用モードは、ＢＤの全プロファイルに含まれる機能のすべてを利用できる再生方式である。搬送用モードは、利用できる機能が据置用モードよりも制限された再生制御方式の一例であり、ＢＤの全プロファイルに含まれる機能のうち、Ｂｏｎｕｓ　Ｖｉｅｗを用いた再生の機能を制限した再生方式である。 The stationary mode is a playback method that can use all the functions included in all profiles of BD. The transport mode is an example of a playback control method in which the functions that can be used are more limited than those in the stationary mode. Among the functions included in all BD profiles, the playback function using the Bonus View is limited. is there.
　図１に戻り、ＢＤ再生装置１００は、さらに、再生制御部１０３と、振動検出部１０４と、判別部１０５と、入力受付部１０６とを備える。各処理部１０３～１０６は例えば、コンピュータプログラムを実行するプロセッサなどによって実現される。なお、ＤＢ再生装置１００は、後述する出力部１０８を備えてもよい。 1, the BD playback apparatus 100 further includes a playback control unit 103, a vibration detection unit 104, a determination unit 105, and an input reception unit 106. Each processing unit 103 to 106 is realized by, for example, a processor that executes a computer program. The DB playback device 100 may include an output unit 108 described later.
　再生制御部１０３は、ＢＤ１０７からＢＤ１０７のコンテンツ情報を読み取るための処理を実行し、コンテンツ情報を読み取る。ＢＤ１０７からコンテンツ情報を読み取るための処理には、フォーカスサーボ、トラッキングサーボなどのＢＤ１０７を回転させる制御を含む。 The playback control unit 103 executes processing for reading the content information of the BD 107 from the BD 107, and reads the content information. The processing for reading content information from the BD 107 includes control for rotating the BD 107 such as a focus servo and a tracking servo.
　また、再生制御部１０３は、判別情報記憶部１０１に記憶された判別情報１０１ａとモード情報記憶部１０２に記憶されたモード情報１０２ａとを参照し、判別情報１０１ａに対応するモード情報１０２ａを特定する。再生制御部１０３は、特定したモード情報１０２ａが示すモードに従って、読み取ったコンテンツ情報を処理する。コンテンツ情報の処理は、モニタ、スピーカなどで出力可能な形式の情報をコンテンツ情報から生成する処理、生成した情報の出力を制御する処理などを含む。生成した情報の出力を制御する処理には、例えば音量調整処理がある。 Further, the reproduction control unit 103 refers to the discrimination information 101a stored in the discrimination information storage unit 101 and the mode information 102a stored in the mode information storage unit 102, and specifies the mode information 102a corresponding to the discrimination information 101a. . The reproduction control unit 103 processes the read content information according to the mode indicated by the identified mode information 102a. The content information processing includes processing for generating information in a format that can be output by a monitor, a speaker, and the like from the content information, processing for controlling output of the generated information, and the like. A process for controlling the output of the generated information includes, for example, a volume adjustment process.
　振動検出部１０４は、再生制御部１０３からサーボ信号を取得し、取得したサーボ信号に基づいてＢＤ再生装置１００に生じた振動を検出し、振動検出時間ＶＤＴに検出された振動回数ＮＶを含む振動検出情報を出力する。 Vibration detection unit 104 acquires the servo signal from the reproduction control unit 103, detects a vibration generated in the BD playback apparatus 100 based on the obtained servo signals, including vibration number N V detected in the vibration detection time VDT Outputs vibration detection information.
　振動検出部１０４は例えば、コンパレータを備える。コンパレータは、サーボ信号を取得し、閾値を超える振動がサーボ信号に含まれた場合に、振動を検出したことを示す信号を出力する。振動検出部１０４は、コンパレータから上記の信号が所定の振動検出時間ＶＤＴに出力された回数をカウントする。これによって、振動回数ＮＶが算出される。 The vibration detection unit 104 includes a comparator, for example. The comparator acquires a servo signal, and outputs a signal indicating that the vibration is detected when the servo signal includes vibration exceeding the threshold value. The vibration detection unit 104 counts the number of times the above signal is output from the comparator during a predetermined vibration detection time VDT. Thus, the number of vibrations N V is calculated.
　振動検出部１０４はさらに、例えば数十から数百ヘルツの信号を通過させるバンドパスフィルタを備え、コンパレータがバンドパスフィルタを介してサーボ信号を取得してもよい。これによって、範囲外の周波数の振動は振動回数ＮＶに含まれず、ノイズを除いた振動回数ＮＶを算出することが可能になる。 The vibration detection unit 104 may further include, for example, a band-pass filter that passes a signal of several tens to several hundreds of hertz, and the comparator may acquire the servo signal via the band-pass filter. Thus, vibration of the range of frequencies is not included in the number of oscillations N V, it is possible to calculate the number of vibrations N V except for noise.
　サーボ信号は、コンテンツ情報をＢＤ１０７から読み取るために再生制御部１０３によって生成される信号であって、例えばトラッキングエラー（ＴＥ）信号である。なお、サーボ信号は、フォーカスエラー（ＦＥ）信号、コンテンツ再生時の高周波（ＲＦ）信号などであってもよい。 The servo signal is a signal generated by the playback control unit 103 in order to read content information from the BD 107, and is, for example, a tracking error (TE) signal. The servo signal may be a focus error (FE) signal, a radio frequency (RF) signal during content reproduction, or the like.
　なお、コスト面ではサーボ信号を用いて振動を検出することが好ましいが、別途振動センサを用いて振動を検出するようにしてもよい（第４～第６実施形態参照）。 Incidentally, (see fourth to sixth embodiments) may be configured to detect the vibration using it is preferable to detect, separately vibration sensor vibration using the servo signals in cost.
　図３に振動検出部１０４の詳細を示す。振動検出部１０４は、振動回数記憶部１１１を備える。振動回数記憶部１１１は、検出された振動回数ＮＶを示す振動回数情報を記憶しており、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）などである。 FIG. 3 shows details of the vibration detection unit 104. The vibration detection unit 104 includes a vibration number storage unit 111. Vibration frequency storage unit 111 stores a vibration count information indicating the detected number of oscillations N V, RAM (Random Access Memory ) and the like.
　また、振動検出部１０４は、タイマ１１２と、初期化部１１３と、サンプリング部１１４と、信号比較部１１５と、インクリメント部１１６とを備える。 Further, the vibration detection unit 104 includes a timer 112, an initialization unit 113, a sampling unit 114, a signal comparison unit 115, and an increment unit 116.
　タイマ１１２は、振動検出時間ＶＤＴを計測する。タイマ１１２は例えば、ＢＤ再生装置１００のプロセッサなどで生成されるクロック信号を利用して実現される。 Timer 112 measures vibration detection time VDT. For example, the timer 112 is realized by using a clock signal generated by a processor of the BD playback device 100 or the like.
　初期化部１１３は、振動を検出する前の初期化処理として、タイマ１１２を起動するとともに、振動回数記憶部１１１が記憶している振動回数情報をリセットする。 The initialization unit 113 activates the timer 112 and resets the vibration frequency information stored in the vibration frequency storage unit 111 as an initialization process before detecting vibration.
　サンプリング部１１４は、振動検出時間ＶＤＴとして予め設定された時間Ｔ１（ミリ秒）の間、再生制御部１０３からサーボ信号を取得し、取得したサーボ信号に基づいて振動検出用信号ＴＳＨＯＣＫを生成する。 The sampling unit 114 acquires a servo signal from the reproduction control unit 103 for a time T 1 (milliseconds) set in advance as the vibration detection time VDT, and generates a vibration detection signal T SHOCK based on the acquired servo signal. To do.
　振動検出用信号ＴＳＨＯＣＫは例えば、振動検出時間ＶＤＴに取得するサーボ信号のうち、サンプリング時間ＳＴ（ミリ秒）分のサーボ信号をバンドパスフィルタに通すことによって生成される。この場合、振動検出用信号ＴＳＨＯＣＫは所定周波数成分の大きさを示す信号となる。 The vibration detection signal T SHOCK is generated, for example, by passing a servo signal for sampling time ST (milliseconds) out of the servo signal acquired at the vibration detection time VDT through a band-pass filter. In this case, the vibration detection signal T SHOCK is a signal indicating the magnitude of the predetermined frequency component.
　信号比較部１１５は、各振動検出用信号ＴＳＨＯＣＫが示す大きさと予め設定された閾値ＴＶ１（ｍＶ）とを比較し、比較結果を示す情報を出力する。たとえば、閾値ＴＶ１は、通常のサーボON時の振幅の3倍程度の値を設定する。 The signal comparison unit 115 compares the magnitude indicated by each vibration detection signal T SHOCK with a preset threshold value TV 1 (mV), and outputs information indicating the comparison result. For example, the threshold value TV 1 is set to a value that is about three times the amplitude when the normal servo is ON.
　インクリメント部１１６は、信号比較部１１５から比較結果を示す情報を取得する。振動検出用信号ＴＳＨＯＣＫの大きさが閾値ＴＶ１以上である場合に、インクリメント部１１６は、振動回数記憶部１１１に記憶された振動回数情報が示す振動回数ＮＶをインクリメントする。これにより、振動回数ＮＶは、振動検出時間ＶＤＴに検出されたＢＤ再生装置１００の振動回数を示すことになる。 The increment unit 116 acquires information indicating the comparison result from the signal comparison unit 115. When the size of the vibration detection signal T SHOCK is the threshold value TV 1 or more, the increment unit 116 increments the number of vibrations N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111. Thus, the number of vibration times N V will indicate the number of vibrations of the BD playback apparatus 100 detected in the vibration detection time VDT.
　各処理部１１３～１１６は、コンピュータプログラムを実行するプロセッサなどにより実現される。 The processing units 113 to 116 are realized by a processor that executes a computer program.
　次に図１に示す判別部１０５は、振動回数情報を振動検出部１０４から取得し、取得した振動回数情報に基づいてＢＤ再生装置１００の用途が据置用と搬送用のいずれであるかを判別し、判別結果を示す情報を出力する。 Next, the determination unit 105 illustrated in FIG. 1 acquires vibration frequency information from the vibration detection unit 104, and determines whether the use of the BD reproduction apparatus 100 is for stationary use or for conveyance based on the acquired vibration frequency information. Then, information indicating the discrimination result is output.
　判別部１０５は、図４に示すように、振動回数比較部１２１と、用途決定部１２２とを備える。 As shown in FIG. 4, the determination unit 105 includes a vibration frequency comparison unit 121 and a use determination unit 122.
　振動回数比較部１２１は、振動回数記憶部１１１に記憶された振動回数情報を振動検出部１０４のインクリメント部１１６から取得し、取得した振動回数情報が示す振動回数ＮＶと予め設定された閾値ＴＶ２とを比較し、比較結果を示す情報を出力する。たとえば、閾値ＴＶ２は３から１０と設定し、地震などでたまたま揺れ（振動）を検出した場合と区別するために閾値ＴＶ２を設定する。 The number of vibrations comparison unit 121 acquires the number of vibrations information stored in the vibration frequency storage unit 111 from the increment unit 116 of the vibration detection unit 104, the obtained number of vibrations N V with a preset threshold TV vibration times information indicates 2 is output, and information indicating the comparison result is output. For example, it sets the threshold TV 2 is 3 to 10, sets the threshold value TV 2 to distinguish from when detecting the chance shake (vibration), such as an earthquake.
　用途決定部１２２は、振動回数比較部１２１から取得した情報が示す比較結果に基づいて、ＢＤ再生装置１００の用途が「据置用」と「搬送用」のいずれであるかを決定する。具体的には、用途決定部１２２は、振動回数ＮＶが閾値ＴＶ２以上である場合に、搬送用であると決定し、振動回数ＮＶが閾値ＴＶ２未満である場合に、据置用であると決定する。また、用途決定部１２２は、決定内容を示す情報を判別情報記憶部１０１及び再生制御部１０３に出力する。 The application determining unit 122 determines whether the application of the BD playback device 100 is “for stationary” or “for transport” based on the comparison result indicated by the information acquired from the vibration frequency comparing unit 121. Specifically, application determination unit 122, when the number of vibrations N V is the threshold value TV 2 or more, and determined to be a transport, when the number of vibrations N V is less than the threshold TV 2, in a stationary Determine that there is. In addition, the usage determining unit 122 outputs information indicating the determination content to the discrimination information storage unit 101 and the reproduction control unit 103.
　各処理部１２１、１２２は、コンピュータプログラムを実行するプロセッサなどにより実現される。 The processing units 121 and 122 are realized by a processor that executes a computer program.
　ここから再び、図１の説明に戻る。
　入力受付部１０６は、リモコン、ＢＤ再生装置１００が備えるボタンなど（図示せず）を利用者などが操作することによって生成された信号を受け付けて、受け付けた信号を出力する。 From here, it returns to description of FIG. 1 again.
The input receiving unit 106 receives a signal generated when a user or the like operates a button or the like (not shown) provided in the remote controller or the BD playback device 100, and outputs the received signal.
　出力部１０８は、再生制御部１０３によって処理されたコンテンツ情報を再生制御部１０３から取得し、コンテンツを出力する。出力部１０８は、例えば画像を出力する画像出力部１０９としてのモニタ、音声を出力する音声出力部１１０としてスピーカなどを含む。 The output unit 108 acquires the content information processed by the playback control unit 103 from the playback control unit 103 and outputs the content. The output unit 108 includes, for example, a monitor as the image output unit 109 that outputs an image, and a speaker as the audio output unit 110 that outputs sound.
　このように構成されたＢＤ再生装置１００によって、振動を検出し、検出した振動回数ＮＶに基づいて用途が据置用と搬送用のいずれであるかを判別し、判別した用途に応じたモードでＢＤ１０７に記録されたコンテンツを再生することができる。 The thus configured BD playback apparatus 100, the vibration is detected and the application based on the detected number of vibrations N V is to determine which of the conveyance and Stationary, in accordance to the determined application mode The content recorded on the BD 107 can be reproduced.
　ここから、ＢＤ再生装置１００が実行する処理について図５～７を参照して説明する。図５は、ＢＤ再生装置１００が実行する処理の概要を示す。 From here, the processing executed by the BD playback device 100 will be described with reference to FIGS. FIG. 5 shows an outline of processing executed by the BD playback device 100.
　入力受付部１０６は、利用者の操作に基づく再生開始指示を示す信号を受け付ける（ステップＳ１０１）。 The input reception unit 106 receives a signal indicating a reproduction start instruction based on a user operation (step S101).
　再生制御部１０３は、再生開始指示を示す信号を受け付けた入力受付部１０６からの指示を受けて、ＢＤ１０７からコンテンツ情報を読み取るための処理を実行する。続けて、再生制御部１０３は、コンテンツ情報を読み取り、読み取ったコンテンツ情報を処理する。このとき、再生制御部１０３は、出力部１０８がコンテンツを無音で出力するようにコンテンツ情報を処理する（無音再生処理，ステップＳ１０２）。 The reproduction control unit 103 receives the instruction from the input receiving unit 106 that has received a signal indicating a reproduction start instruction, and executes processing for reading content information from the BD 107. Subsequently, the reproduction control unit 103 reads the content information and processes the read content information. At this time, the reproduction control unit 103 processes the content information so that the output unit 108 outputs the content without sound (silence reproduction processing, step S102).
　ここで、コンテンツを無音で出力する方法は、いかなる方法であってもよいが、例えば音量をゼロにする（ｍｕｔｅ）方法、音声出力部１１０への音声信号の出力を遮断する方法などがある。コンテンツを無音で出力することによって、音声による振動がＢＤ再生装置１００の振動検出に与える影響をなくすことが可能になる。 Here, any method may be used for outputting the content without sound. For example, there are a method for setting the volume to zero and a method for blocking the output of the audio signal to the audio output unit 110. By outputting the content without sound, it is possible to eliminate the influence of vibration caused by sound on vibration detection of the BD playback device 100.
　振動検出部１０４は、ＢＤ１０７からコンテンツ情報を読み取るための処理において生成されるサーボ信号を再生制御部１０３から取得し、取得したサーボ信号に基づいて振動を検出し、振動検出時間ＶＤＴに検出された振動回数ＮＶを含む振動検出情報を出力する（ステップＳ１０３）。 The vibration detection unit 104 acquires a servo signal generated in the process for reading the content information from the BD 107 from the reproduction control unit 103, detects vibration based on the acquired servo signal, and is detected at the vibration detection time VDT. and it outputs a vibration detection information including the number of vibration times N V (step S103).
　ここから、図６を参照して、振動検出処理（ステップＳ１０３）の詳細を説明する。 From here, the details of the vibration detection process (step S103) will be described with reference to FIG.
　初期化部１１３は、振動回数記憶部１１１に記憶された振動回数情報が示す振動回数ＮＶを０にリセットし、タイマ１１２を起動させる（ステップＳ１１１）。 Initializing unit 113, the number of vibration times N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111 is reset to 0 and starts the timer 112 (step S111).
　サンプリング部１１４は、タイマ１１２を参照しながら、振動検出時間ＶＤＴがＴ１（ミリ秒）になるまでの間（ステップＳ１１２）、再生制御部１０３からＴＥ信号を取得し、取得したＴＥ信号に基づいて振動検出用信号ＴＳＨＯＣＫを生成する（ステップＳ１１３）。 The sampling unit 114 acquires the TE signal from the reproduction control unit 103 until the vibration detection time VDT reaches T 1 (milliseconds) while referring to the timer 112 (step S112), and based on the acquired TE signal. Then, a vibration detection signal T SHOCK is generated (step S113).
　振動検出用信号ＴＳＨＯＣＫは、上述のように例えばＴＥ信号に含まれる特定周波数成分の信号であって、予め設定されたサンプリング時間ＳＴ（ミリ秒）分のＴＥ信号をバンドパスフィルタに通過させることによって生成される。 The vibration detection signal T SHOCK is, for example, a signal of a specific frequency component included in the TE signal as described above, and allows the TE signal for a preset sampling time ST (milliseconds) to pass through the bandpass filter. Generated by.
　次に、信号比較部１１５は、振動検出用信号ＴＳＨＯＣＫの大きさと予め設定された閾値ＴＶ１とを比較し、比較結果に応じた情報を出力する（ステップＳ１１４）。詳細には、振動検出用信号ＴＳＨＯＣＫの大きさが閾値ＴＶ１以上である場合（ステップＳ１１４；Ｙｅｓ）、信号比較部１１５は、その判断結果を示す情報をインクリメント部１１６に出力する。振動検出用信号ＴＳＨＯＣＫが閾値ＴＶ１未満である場合（ステップＳ１１４；Ｎｏ）、サンプリング部１１４にサンプリング処理（ステップＳ１１３）を継続させるための情報を出力する。 Next, the signal comparison unit 115 compares the magnitude of the vibration detection signal T SHOCK with a preset threshold value TV 1 and outputs information according to the comparison result (step S114). Specifically, when the magnitude of the vibration detection signal T SHOCK is greater than or equal to the threshold TV 1 (step S114; Yes), the signal comparison unit 115 outputs information indicating the determination result to the increment unit 116. When the vibration detection signal T SHOCK is less than the threshold TV 1 (step S114; No), the sampling unit 114 outputs information for continuing the sampling process (step S113).
　インクリメント部１１６は、振動検出用信号ＴＳＨＯＣＫの大きさが閾値ＴＶ１以上であることを示す情報を取得すると、振動回数記憶部１１１に記憶された振動回数情報を取得する。続けて、インクリメント部１１６は、取得した振動回数情報が示す振動回数ＮＶに１を加算し、加算後の振動回数ＮＶを示す情報を振動回数情報として振動回数記憶部１１１に記憶させる（ステップＳ１１５）。 When the increment unit 116 obtains information indicating that the magnitude of the vibration detection signal T SHOCK is greater than or equal to the threshold TV 1 , the increment unit 116 obtains the vibration number information stored in the vibration number storage unit 111. Subsequently, the increment unit 116 adds one to the number of vibrations N V indicated by the acquired vibration count information, (step of storing in the vibration frequency storage unit 111 information indicating the number of vibrations N V after addition as the vibration frequency information S115).
　このようにして、振動検出時間ＶＤＴがＴ１になるまでの間、サンプリング処理（ステップＳ１１３）が実行され、サンプリングされたＴＥ信号に基づく、信号比較処理（ステップＳ１１４）及び振動回数ＮＶのインクリメント処理（ステップＳ１１５）が実行される。 In this way, until the oscillation detection time VDT is T 1, the sampling process (step S113) is performed, based on the sampled TE signal, the signal comparison process (step S114) and increments the number of oscillations N V Processing (step S115) is executed.
　続けて、インクリメント部１１６は、タイマ１１２から信号比較部１１５を介して振動検出時間ＶＤＴがＴ１になったことを示す情報を取得すると、振動回数記憶部１１１から振動回数情報を取得する。インクリメント部１１６は、取得した振動回数情報を含む振動検出情報を出力する（ステップＳ１１６）。これにより、振動検出処理（ステップＳ１０３）が終了する。 Subsequently, when the increment unit 116 acquires information indicating that the vibration detection time VDT has reached T 1 from the timer 112 via the signal comparison unit 115, the increment unit 116 acquires vibration number information from the vibration number storage unit 111. The increment unit 116 outputs vibration detection information including the acquired vibration frequency information (step S116). Thereby, a vibration detection process (step S103) is complete | finished.
　再び図５を参照して、判別部１０５は、振動回数情報を含む振動検出情報を振動検出部１０４のインクリメント部１１６から取得し、取得した情報に基づいてＢＤ再生装置１００の用途を判別し、判別結果を示す情報を出力する（ステップＳ１０４）。 Referring to FIG. 5 again, the determination unit 105 acquires vibration detection information including vibration frequency information from the increment unit 116 of the vibration detection unit 104, determines the use of the BD playback device 100 based on the acquired information, Information indicating the discrimination result is output (step S104).
　ここから、図７を参照して、用途判別処理（ステップＳ１０４）の詳細を説明する。 From here, with reference to FIG. 7, the details of the application determination process (step S104) will be described.
　振動回数比較部１２１は、振動検出情報をインクリメント部１１６から取得し（ステップＳ１２１）、取得した振動検出情報に含まれる振動回数ＮＶと予め設定された閾値ＴＶ２とを比較し、比較結果を示す情報を出力する（ステップＳ１２２）。 The number of vibrations comparison section 121 compares acquired vibration detection information from the increment unit 116 (step S121), and a threshold value TV 2 which is set in advance as the number of vibrations N V included in the acquired vibration detection information, the comparison result The information shown is output (step S122).
　用途決定部１２２は、比較結果情報を取得し、当該情報に含まれる比較結果において振動回数ＮＶが閾値ＴＶ２
以上である場合（ステップＳ１２２；Ｙｅｓ）、ＢＤ再生装置１００の用途が搬送用であると決定する（ステップＳ１２３）。また、用途決定部１２２は比較結果において振動回数ＮＶが閾値ＴＶ２未満である場合（ステップＳ１２２；Ｎｏ）、ＢＤ再生装置１００の用途が据置用であると決定する（ステップＳ１２４）。 Application determination unit 122 compares the result to obtain information, vibration in comparison results included in the information number N V threshold TV 2
When it is above (step S122; Yes), it determines that the use of the BD reproducing | regenerating apparatus 100 is an object for conveyance (step S123). Also, if the application determination section 122 is less than the number of vibrations N V threshold TV 2 in the comparison result (step S122; No), the use of BD playback apparatus 100 is determined to be a stationary (step S124).
　用途決定部１２２は、決定した用途を示す判別情報を出力する（ステップＳ１２５）。すなわち、用途決定部１２２は、振動回数ＮＶが閾値ＴＶ２以上である場合（ステップＳ１２２；Ｙｅｓ）には搬送用であることを示す判別情報を、振動回数ＮＶが閾値ＴＶ２未満である場合（ステップＳ１２２；Ｎｏ）には用途が据置用であることを示す判別情報を再生制御部１０３に出力し、判別情報記憶部１０１に記憶させる。 The usage determining unit 122 outputs discrimination information indicating the determined usage (step S125). That is, the application determination unit 122, if the number of vibration times N V is the threshold value TV 2 or more; the determination information indicating that is conveying (step S122 Yes), the number of vibrations N V is less than the threshold value TV 2 In the case (step S122; No), discrimination information indicating that the application is for stationary use is output to the reproduction control unit 103 and stored in the discrimination information storage unit 101.
　ここから、再び図５の説明に戻る。
　再生制御部１０３は、判別部１０５又は判別情報記憶部１０１から判別情報１０１ａを取得し、モード情報記憶部１０２を参照することによって、取得した判別情報１０１ａに対応するモード情報１０２ａを取得する。再生制御部１０３は、取得したモード情報１０２ａが示すモードに従って、コンテンツの通常再生処理を行う（ステップＳ１０５）。ここで、通常再生処理とは、無音再生処理（ステップＳ１０２）とは異なり、利用者が定めた音量での音声出力を伴うようにコンテンツ情報を処理することをいう。 From here, it returns to description of FIG. 5 again.
The reproduction control unit 103 acquires the discrimination information 101a from the discrimination unit 105 or the discrimination information storage unit 101, and acquires the mode information 102a corresponding to the acquired discrimination information 101a by referring to the mode information storage unit 102. The reproduction control unit 103 performs normal content reproduction processing according to the mode indicated by the acquired mode information 102a (step S105). Here, the normal reproduction process is different from the silent reproduction process (step S102), and means that the content information is processed so as to be accompanied by the sound output at the volume determined by the user.
　再生制御部１０３は、入力受付部１０６からの指示に基づいて、再生終了指示を受け付けたか否かを判断する（ステップＳ１０６）。 The playback control unit 103 determines whether a playback end instruction has been received based on an instruction from the input receiving unit 106 (step S106).
　再生制御部１０３は、入力受付部１０６から再生終了指示を受け付けていないと判断した場合（ステップＳ１０６；Ｎｏ）、再生制御部１０３は通常再生処理（ステップＳ１０５）を継続する。 When the playback control unit 103 determines that a playback end instruction has not been received from the input receiving unit 106 (step S106; No), the playback control unit 103 continues the normal playback process (step S105).
　また、再生制御部１０３は、入力受付部１０６から再生終了指示を受け付けたと判断した場合（ステップＳ１０６；Ｙｅｓ）、再生制御部１０３は処理を終了する。 If the playback control unit 103 determines that a playback end instruction has been received from the input receiving unit 106 (step S106; Yes), the playback control unit 103 ends the process.
　なお、無音再生処理（ステップＳ１０２）から用途判別処理（ステップＳ１０４）までの一連の処理は、サーボ信号を取得できる時であれば、どのようなタイミングで実行されてもよいが、本実施形態で説明したタイミングが望ましい。 The series of processes from the silent reproduction process (step S102) to the application determination process (step S104) may be executed at any timing as long as the servo signal can be acquired. The timing described is desirable.
　すなわち、ＢＤ再生装置１００は、図５に示すように、再生開始指示受付処理（ステップＳ１０１）の直後に、無音再生処理（ステップＳ１０２）と振動検出処理（ステップＳ１０３）と用途判別処理（ステップＳ１０４）とを順次実行する。再生開始指示受付処理（ステップＳ１０１）の直後は、例えばＢＤ１０７のスピンアップ処理など、コンテンツ情報をＢＤ１０７から読み取るための処理が実行される。そのため、この時は音声が出力されない。本実施形態のタイミングで、無音再生処理（ステップＳ１０２）から用途判別処理（ステップＳ１０４）までの一連の処理を実行することによって、無音再生処理（ステップＳ１０２）によって再生中のコンテンツの音声が途切れることを防ぐことができる。 That is, as shown in FIG. 5, the BD playback device 100 immediately after the playback start instruction receiving process (step S101), the silence playback process (step S102), the vibration detection process (step S103), and the application determination process (step S104). ) Are executed sequentially. Immediately after the reproduction start instruction receiving process (step S101), for example such as spin-up processing of BD107, processing for reading content information from BD107 is executed. Therefore, no sound is output at this time. By executing a series of processes from the silence reproduction process (step S102) to the application determination process (step S104) at the timing of this embodiment, the sound of the content being reproduced is interrupted by the silence reproduction process (step S102). Can be prevented.
　これまで説明したように、本実施形態に係るＢＤ再生装置１００は、ＢＤ１０７のコンテンツを再生する指示を受けて、サーボ信号を利用して振動を検出する。サーボ信号は一般のＢＤ再生装置においてコンテンツを再生するために生成される信号である。そのため、ＢＤ再生装置１００は、振動を検出するために新たなセンサなどを設ける必要がない。したがって、振動を検出し、用途を判別できるＢＤ再生装置１００を簡易かつコンパクトな構成で実現することが可能になる。 As described so far, the BD playback apparatus 100 according to the present embodiment receives a command to play back the content of the BD 107 and detects vibration using a servo signal. The servo signal is a signal generated for reproducing content in a general BD reproducing apparatus. Therefore, the BD playback device 100 does not need to be provided with a new sensor or the like in order to detect vibration. Therefore, it is possible to realize the BD playback device 100 that can detect vibration and determine the application with a simple and compact configuration.
　また、ＢＤ再生装置１００は、音声出力がない状態で振動を検出するため、音声出力による振動の影響を受けずに振動を検出することができる。そのため、ＢＤ再生装置１００の振動を正確に検出することが可能になる。 Also, since the BD playback device 100 detects vibration in the absence of sound output, it can detect vibration without being affected by vibration due to sound output. Therefore, it is possible to accurately detect the vibration of the BD playback device 100.
　さらに、据置用であっても、微少な振動が生じることはありうる。ＢＤ再生装置１００は、閾値ＴＶ１以上の大きさの振動が生じた場合を振動として検出するため、微少な振動による用途判別の誤りを防ぐことができる。 Further, even for stationary use, a slight vibration can occur. Since the BD playback apparatus 100 detects a vibration having a magnitude greater than or equal to the threshold TV 1 as a vibration, it can prevent an application determination error due to a slight vibration.
　さらに、据置用であっても、地震が発生した場合、設置が不安定であった場合などに、ある程度大きな振動が生じることはありうる。もっとも、据置用で大きな振動が生じることは稀である。振動が検出された回数が閾値ＴＶ２以上である場合に搬送用と判別するため、据置用のＢＤ再生装置１００に生じた偶発的な振動によって判別を誤ることを防止することができる。 Furthermore, even for stationary use, there is a possibility that a large vibration will occur to some extent when an earthquake occurs or the installation is unstable. However, large vibrations are rarely generated for stationary use. To determine the conveyance when the number of times the vibration is detected is the threshold value TV 2 or more, it is possible to prevent erroneous determination by accidental vibration generated in the BD playback apparatus 100 for stationary.
　さらに、本実施形態では、ＢＤ１０７のコンテンツを再生する指示を受けた後に、振動検出処理（ステップＳ１０３）及び用途判別処理（ステップＳ１０４）が実行される。ＢＤ再生装置１００を利用している時、すなわち利用者がコンテンツを再生する指示を入力する時には、搬送用のＢＤ再生装置１００であれば、搬送に伴う振動が生じていることが多い。これに対して、上述のような大きな振動が据置用のＢＤ再生装置１００に生じていることは殆どない。したがって、コンテンツを再生する指示を入力する時に、振動を検出し、用途を判別することによって、用途の判別を正確にすることが可能になる。 Furthermore, in this embodiment, after receiving an instruction to reproduce the content of the BD 107, a vibration detection process (step S103) and an application determination process (step S104) are executed. When the BD playback apparatus 100 is used, that is, when a user inputs an instruction to play back content, the transport BD playback apparatus 100 often generates vibrations associated with transport. On the other hand, the large vibration as described above hardly occurs in the stationary BD reproducing apparatus 100. Therefore, when inputting an instruction to reproduce content, it is possible to detect the vibration and determine the application, thereby making it possible to accurately determine the application.
　さらに、本実施形態に係るＢＤ再生装置１００は、振動検出情報に基づいて、用途が据置用と搬送用とのいずれであるかを判断し、判断された用途に応じて、据置用モードと搬送用モードとのいずれかのモードでＢＤ１０７の再生処理を行う。そして、本実施形態において説明したように、搬送用モードでは、据置用モードにおいて利用できる機能の一部が制限される。 Furthermore, the BD playback device 100 according to the present embodiment determines whether the application is stationary or transport based on the vibration detection information, and determines the stationary mode and transport according to the determined use. The playback process of the BD 107 is performed in one of the modes for use. As described in the present embodiment, in the transfer mode, some of the functions that can be used in the stationary mode are limited.
　搬送用のＢＤ再生装置１００は、車に載せられ、携帯されるなど搬送して使用される。そのため、搬送用のＢＤ再生装置１００は一般に、据置用のものに比べて、画面が小さく、また画像処理などの処理能力も乏しいものが多い。そのため、搬送用モードでは、例えばＢｏｎｕｓ　Ｖｉｅｗのように、ＢＤ再生装置１００に掛かる処理負荷が大きくなる一方で、小さな画面では実益が乏しい機能が制限される。これに対し、家庭で用いるなどの据置用では、すべての機能に対応できるモードが望ましい。 The transporting BD playback device 100 is used by being transported by being mounted on a car or being carried. Therefore, in general, the BD playback apparatus 100 for conveyance has a smaller screen and a smaller processing capability such as image processing than those for stationary use. Therefore, in the transport mode, for example, as Bonus View, while processing load on the BD playback apparatus 100 is increased, functional practical benefits poor a small screen is limited. On the other hand, for stationary use such as home use, a mode that can handle all functions is desirable.
　このように、本実施形態に係るＢＤ再生装置１００によれば、ＢＤ再生装置１００の用途に適したモードでＢＤ１０７に含まれるコンテンツを再生することが可能になる。 Thus, according to the BD playback apparatus 100 according to the present embodiment, it is possible to reproduce the content contained in BD107 in a mode suitable for the application of the BD reproduction device 100.
　機能が制限された搬送用モードでは、少なくとも制限された機能に関するファームウェアを更新する必要がなくなる。そのため、搬送用のＢＤ再生装置１００のファームウェアを更新する必要をなくすこと、又は軽減することが可能になる。そして、基本的な簡易再生機能のみで再生処理を行うことができるため、ディスク再生の互換性が向上する。 In the transport mode with limited functions, it is not necessary to update the firmware for at least the limited functions. Therefore, it is possible to eliminate or reduce the need to update the firmware of the transport BD playback apparatus 100. Since the playback process can be performed only with the basic simple playback function, the compatibility of disk playback is improved.
　さらに、機能が制限された搬送用モードでは、例えば新しいプロファイルに対応しないように設定されてもよい。これによって、新しいプロファイルの機能を利用するコンテンツが記録されたＢＤであっても、本実施形態に係るＢＤ再生装置１００が搬送用である場合、その機能の利用は制限される。そのため、ファームウェアを更新しなくても、新しいプロファイルの機能を利用するコンテンツを、その機能が制限された下で視聴することが可能になる。したがって、搬送用のＢＤ再生装置１００のファームウェアを更新する必要をなくすこと、又は軽減することが可能になる。 Furthermore, in the transfer mode with limited functions, for example, it may be set not to correspond to a new profile. Thus, even a BD content is recorded utilizing the function of the new profile, if BD playback apparatus 100 according to this embodiment is for transport, use of the function is restricted. Therefore, it is possible to view content that uses the function of the new profile under a limited function without updating the firmware. Therefore, it is possible to eliminate or reduce the need to update the firmware of the transport BD playback apparatus 100.
　仮にＢＤ再生装置の用途を予め設定しておくことにすると、実際の用途が搬送用であるにもかかわらず、ＢＤ再生装置が誤って据置用モードで再生しようとすることが起こりうる。搬送用モードでの再生にファームウェアなどが対応していない場合、新しいプロファイルの機能を利用するコンテンツは再生できないことになる。本実施形態に係るＢＤ再生装置１００では、用途を確実に判別できため、実際の用途を正確に判断して、用途に適したモードでコンテンツを再生することが可能になる。 If the use of the BD playback device is set in advance, it may happen that the BD playback device erroneously tries to play back in the stationary mode even though the actual use is for transportation. If the firmware does not support playback in the transport mode, content using the new profile function cannot be played back. In the BD playback apparatus 100 according to the present embodiment, the usage can be reliably determined, so that it is possible to accurately determine the actual usage and reproduce the content in a mode suitable for the usage.
（第２実施形態）
　本発明の第２実施形態に係るＢＤ再生装置２００は、第１実施形態に係るＢＤ再生装置１００と同様に、音声出力がない状態で振動検出して用途を判別するＢＤ再生装置である。ＢＤ再生装置２００は、ＢＤ再生装置１００が実行する無音再生処理に代えて無音判断処理を実行する。すなわち、ＢＤ再生装置２００は、通常再生中に無音であるか否かを判断して、無音であると判断した場合に振動検出処理及び用途判別処理を実行する。 (Second Embodiment)
Similar to the BD playback device 100 according to the first embodiment, the BD playback device 200 according to the second embodiment of the present invention is a BD playback device that detects a vibration and discriminates a use in the absence of an audio output. The BD playback device 200 executes silence determination processing instead of the silence playback processing executed by the BD playback device 100. That is, the BD playback device 200 determines whether or not there is silence during normal playback, and executes the vibration detection process and the application determination process when it is determined that there is no sound.
　本実施形態に係るＢＤ再生装置２００は、図８に示すように、ＢＤ再生装置１００と概ね同様の構成を備えており、ＢＤ再生装置１００が備える構成要素に加えて、無音判断部２０１を備える。無音判断部２０１は、再生制御部１０３からＢＤ１０７のコンテンツに含まれる音声部分を示す音声情報を取得し、音声情報に基づいて無音であるか否かを判断する。 As shown in FIG. 8, the BD playback device 200 according to the present embodiment has substantially the same configuration as the BD playback device 100, and includes a silence determination unit 201 in addition to the components included in the BD playback device 100. . Silence determination unit 201 acquires the speech information indicating the speech portion included from the reproduction control unit 103 to the content BD107, it is determined whether or not silence based on audio information.
　次に、ＢＤ再生装置２００が実行する処理について、図９を参照して説明する。 Next, processing executed by the BD playback device 200 will be described with reference to FIG.
　再生制御部１０３は、入力受付部１０６から出力される信号を受けて、通常再生処理（ステップＳ１０５）を実行する。 The playback control unit 103 receives the signal output from the input receiving unit 106 and executes normal playback processing (step S105).
　無音判断部２０１は、再生制御部１０３から再生中のコンテンツの音声情報を取得する（ステップＳ２０１）。続けて、無音判断部２０１は、取得した音声情報に含まれる音声がない（無音である）か否かを判断する（ステップＳ２０２）。 The silence determination unit 201 acquires audio information of the content being reproduced from the reproduction control unit 103 (step S201). Subsequently, the silence determination unit 201 determines whether there is no sound (silence) included in the acquired sound information (step S202).
　無音判断部２０１が無音であると判断した場合（ステップＳ２０２；Ｙｅｓ）、振動検出部１０４は振動検出処理（ステップＳ１０３）を実行する。そして、判別部１０５は用途判別処理（ステップＳ１０４）を実行する。無音判断部２０１が無音でないと判別した場合（ステップＳ２０２；Ｎｏ）、再生制御部１０３は、再生終了指示を受け付けたか否かの判断処理（ステップＳ１０６）を実行する。 When the silence determination unit 201 determines that there is no sound (step S202; Yes), the vibration detection unit 104 executes a vibration detection process (step S103). Then, the determination unit 105 executes a use determination process (step S104). When the silence determination unit 201 determines that there is no silence (step S202; No), the reproduction control unit 103 performs a determination process (step S106) as to whether a reproduction end instruction has been accepted.
　ＢＤ再生装置２００は再生中の音声がない間に振動を検出するため、無音化することによって再生中のコンテンツの音声を途切れさせることなく振動を検出することができる。したがって、再生させるべき音声が再生されないということがなくなり、快適な視聴を実現することが可能になる。 For BD playback apparatus 200 for detecting vibration while there is no audio being played, it is possible to detect the vibration without interrupting the audio content being played by muted. Therefore, the sound to be reproduced is not reproduced, and comfortable viewing can be realized.
（第３実施形態）
　本発明の第３実施形態に係るＢＤ再生装置は、ＢＤ再生装置１００及びＢＤ再生装置２００と同様に、音声出力がない状態で振動検出して用途を判別するＢＤ再生装置である。本実施形態に係るＢＤ再生装置は、第１実施形態に係るＢＤ再生装置１００と同様の構成を備える。そのため、本実施形態に係るＢＤ再生装置の構成を示す図及びその構成の説明は省略する。 (Third embodiment)
Similar to the BD playback device 100 and the BD playback device 200, the BD playback device according to the third embodiment of the present invention is a BD playback device that detects vibrations and discriminates the application in the absence of audio output. The BD playback device according to the present embodiment has the same configuration as the BD playback device 100 according to the first embodiment. Therefore, a diagram illustrating the configuration of the BD playback apparatus according to the present embodiment and a description of the configuration are omitted.
　本実施形態に係るＢＤ再生装置は、振動検出処理及び用途判別処理を実行する時期に特徴がある。第３実施形態に係るＢＤ再生装置が実行する処理について、図１０を参照して説明する。 The BD playback device according to the present embodiment is characterized by the timing of executing the vibration detection process and the application determination process. Processing executed by the BD playback device according to the third embodiment will be described with reference to FIG.
　再生制御部１０３は、ＢＤ１０７からコンテンツ情報を読み取るための処理の１つであるスピンアップ処理（ステップＳ３０１）を実行する。スピンアップ処理（ステップＳ３０１）において、再生制御部１０３は、ＢＤ１０７の回転を制御するとともに、ＴＥ信号などのサーボ信号を生成して、出力する。 The playback control unit 103 executes a spin-up process (step S301), which is one of processes for reading content information from the BD 107. In the spin-up process (step S301), the reproduction control unit 103 controls the rotation of the BD 107 and generates and outputs a servo signal such as a TE signal.
　なお、スピンアップ処理（ステップＳ３０１）は、ＢＤ再生装置の電源が投入された時、利用者の操作に基づく再生開始指示を入力受付部１０６が受け付けた時など、いずれのタイミングで実行されてもよい。 The spin-up process (step S301) may be executed at any timing such as when the BD playback apparatus is turned on or when the input receiving unit 106 receives a playback start instruction based on a user operation. Good.
　続けて、振動検出部１０４が振動検出処理（ステップＳ１０３）を実行し、判別部１０５が用途判別処理（ステップＳ１０４）を実行し、再生制御部１０３が通常再生処理（ステップＳ１０５）を実行し、再生制御部１０３が再生終了指示を受け付けたか否かの判断処理（ステップＳ１０６）を実行する。 Subsequently, the vibration detection unit 104 executes a vibration detection process (step S103), the determination unit 105 executes an application determination process (step S104), and the reproduction control unit 103 executes a normal reproduction process (step S105). A determination process (step S106) as to whether or not the reproduction control unit 103 has received a reproduction end instruction is executed.
　このように、本実施形態に係るＢＤ再生装置は、スピンアップ処理（ステップＳ３０１）中に振動判断処理（ステップＳ１０３）及び用途判別処理（ステップＳ１０４）を実行する。スピンアップ処理（ステップＳ３０１）は読み取ったコンテンツ情報を処理する前に実行されるため、出力部１０８はコンテンツを出力しない。したがって、音声出力がない状態で振動を検出することができ、音声による振動の影響を受けることなく、正確に振動を検出することが可能になる。 Thus, BD playback apparatus according to the present embodiment executes the spinup process (step S301) vibration determination process in (step S103) and use judgment processing (step S104). Since the spin-up process (step S301) is executed before processing the read content information, the output unit 108 does not output the content. Therefore, vibration can be detected in the absence of sound output, and vibration can be accurately detected without being affected by vibration caused by sound.
　本実施形態によれば、音量をなくす処理及び無音であるか否かを判断する処理が不要になり、正確に振動を検出するための処理を簡易にすることが可能になる。 According to this embodiment, the process of determining whether a processing and silence elimination of the volume is not required, it is possible to simplify the process for accurately detecting the vibration.
（第４実施形態）
　本発明の第４実施形態に係るＢＤ再生装置は、第１実施形態に係るＢＤ再生装置１００と同様に、用途を判別し、その判別した用途に応じたモードでＢＤを再生する装置である。本実施形態に係るＢＤ再生装置は、振動を検知するセンサを備える点で、第１実施形態に係るＢＤ再生装置と異なる。 (Fourth embodiment)
Similar to the BD playback device 100 according to the first embodiment, the BD playback device according to the fourth embodiment of the present invention is a device that discriminates a use and plays back a BD in a mode corresponding to the determined use. The BD playback device according to the present embodiment is different from the BD playback device according to the first embodiment in that it includes a sensor that detects vibration.
　ＢＤ再生装置４００は、図１１に示すように、ＢＤ再生装置１００が備える構成要素に加えてセンサ４４１を備え、また、第１実施形態に係る振動検出部１０４に代えて振動検出部４０４を備える。 As shown in FIG. 11, the BD playback device 400 includes a sensor 441 in addition to the components included in the BD playback device 100, and includes a vibration detection unit 404 instead of the vibration detection unit 104 according to the first embodiment. .
　センサ４４１は、振動を検出することが可能なセンサであって、例えば、加速度センサ、角速度（ジャイロ）センサである。センサ４４１は、検出した振動の大きさを示す信号（センサ検知信号）を出力する。 The sensor 441 is a sensor capable of detecting vibration, and is, for example, an acceleration sensor or an angular velocity (gyro) sensor. The sensor 441 outputs a signal (sensor detection signal) indicating the magnitude of the detected vibration.
　振動検出部４０４は、第１実施形態に係る振動検出部１０４と同様の構成を有し、信号に基づいて振動を検出し、振動検出時間ＶＤＴに検出された振動回数ＮＶを含む振動検出情報を出力する。振動検出部４０４は、第１実施形態に係る振動検出部１０４と異なり、センサ４４１からセンサ検知信号を取得し、センサ検知信号に基づいて振動回数情報を生成する。 Vibration detecting unit 404 has the same configuration as the vibration detection unit 104 according to the first embodiment, to detect the vibration based on the signal, the vibration detection information including the number of vibrations N V detected in the vibration detection time VDT Is output. Unlike the vibration detection unit 104 according to the first embodiment, the vibration detection unit 404 acquires a sensor detection signal from the sensor 441 and generates vibration frequency information based on the sensor detection signal.
　ＢＤ再生装置４００が実行する処理は、図５～７を参照して説明したＢＤ再生装置１００が実行する処理と同様である。ただし、振動検出処理（ステップＳ１０３）において、振動検出部４０４の初期化部（図示せず）は、無音再生処理（ステップＳ１０２）を実行する再生制御部１０３からの信号をトリガとして振動検出初期化処理（ステップＳ１１１）を実行する。また、振動検出処理（ステップＳ１０３）において、振動検出部４０４のサンプリング部は、センサ４４１から取得したセンサ検知信号に基づいてサンプリング処理（ステップＳ１１３）を実行する。 The processing executed by the BD playback device 400 is the same as the processing executed by the BD playback device 100 described with reference to FIGS. However, in the vibration detection process (step S103), the initialization unit (not shown) of the vibration detection unit 404 initializes the vibration detection using a signal from the reproduction control unit 103 that executes the silence reproduction process (step S102) as a trigger. A process (step S111) is executed. Further, in the vibration detection processing (step S103), the sampling part of the vibration detection unit 404 performs a sampling process (step S113) based on the sensor detection signal obtained from the sensor 441.
　このように、ＢＤ再生装置４００はセンサ４４１を備えるため、再生制御部１０３からの信号を用いることなく、振動を検出することができる。また、無音再生処理（ステップＳ１０２）を実行する再生制御部１０３からの信号をトリガとすることによって、音声出力がない状態で振動を検出することができる。これによって、音声出力による振動の影響を受けずに、振動を検出することが可能になる。 Thus, since the BD playback device 400 includes the sensor 441, vibration can be detected without using a signal from the playback control unit 103. In addition, by using a signal from the reproduction control unit 103 that executes the silent reproduction process (step S102) as a trigger, it is possible to detect vibration without sound output. As a result, vibration can be detected without being affected by vibration caused by the sound output.
（第５実施形態）
　本発明の第５実施形態に係るＢＤ再生装置は、第４実施形態に係るＢＤ再生装置４００が備える構成要素に加えて、第２実施形態に係るＢＤ再生装置２００の無音判断部２０１を備える（図８及び図１１参照）。また、本実施形態に係るＢＤ再生装置は、第２実施形態に係るＢＤ再生装置２００と同様の処理を実行する（図９参照）。 (Fifth embodiment)
The BD playback device according to the fifth embodiment of the present invention includes a silence determination unit 201 of the BD playback device 200 according to the second embodiment in addition to the components included in the BD playback device 400 according to the fourth embodiment ( FIG. 8 and FIG. 11). Further, the BD playback device according to the present embodiment executes the same processing as the BD playback device 200 according to the second embodiment (see FIG. 9).
　すなわち、第５実施形態に係るＢＤ再生装置は、コンテンツの再生中に、無音判断部２０１が音声情報に基づいて再生中のコンテンツが無音であるか否かを判断し（ステップＳ２０２）、無音であると判断した場合に（ステップＳ２０２；Ｙｅｓ）、振動検出部４０４が振動検出処理（ステップＳ１０３）を実行する。 That is, in the BD playback device according to the fifth embodiment, during playback of content, the silence determination unit 201 determines whether the content being played back is silent based on the audio information (step S202). When it is determined that there is (step S202; Yes), the vibration detection unit 404 executes a vibration detection process (step S103).
　本実施形態によれば、センサ４４１を備えるＢＤ再生装置によっても、再生中の音声がない間に振動を検出することができる。そのため、無音化することによって再生中のコンテンツの音声を途切れさせることなく振動を検出することができる。したがって、再生させるべき音声が再生されないということがなくなり、快適な視聴を実現することが可能になる。 According to this embodiment, even a BD playback device including the sensor 441 can detect vibration while there is no sound being played back. For this reason, it is possible to detect the vibration without interrupting the sound of the content being reproduced by silence. Therefore, the sound to be reproduced is not reproduced, and comfortable viewing can be realized.
（第６実施形態）
本発明の第６実施形態に係るＢＤ再生装置は、第４実施形態に係るＢＤ再生装置４００と同様に、センサの信号に基づいて振動を検出するとともに、用途を判別し、その判別した用途に応じたモードでＢＤを再生する装置である。 (Sixth embodiment)
Similar to the BD playback device 400 according to the fourth embodiment, the BD playback device according to the sixth embodiment of the present invention detects vibration based on the signal of the sensor, discriminates the use, and determines the use. This is a device for playing back a BD in a corresponding mode.
　本実施形態に係るＢＤ再生装置６００について、図１２及び１３を参照して説明する。 The BD playback device 600 according to the present embodiment will be described with reference to FIGS.
　ＢＤ再生装置６００は、図１２に示すように、第４実施形態に係るＢＤ再生装置４００が備える構成要素に加えて、再生判断部６５１を備える。再生判断部６５１は、再生制御部１０３がＢＤ１０７のコンテンツを再生中であるか否かを判断する。 As shown in FIG. 12, the BD playback device 600 includes a playback determination unit 651 in addition to the components included in the BD playback device 400 according to the fourth embodiment. The reproduction determination unit 651 determines whether or not the reproduction control unit 103 is reproducing the content of the BD 107.
　ＢＤ再生装置６００が実行する処理について、図１３を参照して説明する。 Processing executed by the BD playback device 600 will be described with reference to FIG.
　再生判断部６５１は、入力受付部１０６からの指示に基づいて、電源をＯＮにする指示を受け付けたか否かを判断する（ステップＳ６５１）。入力受付部１０６から電源をＯＮにする指示を受け付けていないと判断した場合（ステップＳ６５１；Ｎｏ）、再生判断部６５１は待機する。 The reproduction determination unit 651 determines whether an instruction to turn on the power is received based on the instruction from the input reception unit 106 (step S651). When it is determined that an instruction to turn on the power is not received from the input receiving unit 106 (step S651; No), the reproduction determining unit 651 waits.
　入力受付部１０６から電源をＯＮにする指示を受け付けたと判断した場合（ステップＳ６５１；Ｙｅｓ）、再生判断部６５１は、ＢＤ１０７のコンテンツの再生中であるか否かを示す再生情報を再生制御部１０３から取得し、取得した再生情報に基づいてコンテンツの再生中であるか否かを判断する（ステップＳ６５２）。 If it is determined that an instruction to turn on the power has been received from the input receiving unit 106 (step S651; Yes), the playback determining unit 651 displays playback information indicating whether or not the content of the BD 107 is being played back. And based on the acquired reproduction information, it is determined whether or not the content is being reproduced (step S652).
　再生情報は、コンテンツ再生中に再生制御部１０３が生成する情報であればよく、例えばコンテンツ再生中であることを示す特定の信号、再生制御部１０３が生成するコンテンツ情報などであってよい。 Reproduction information may be information reproduction control unit 103 is generated during content playback, for example, specific signal indicating that it is the content playback may the like content information reproduction control unit 103 generates.
　再生中であると判断した場合（ステップＳ６５２；Ｙｅｓ）、再生判断部６５１は待機する。 When it is determined that playback is in progress (step S652; Yes), the playback determination unit 651 waits.
　再生中でないと判断した場合（ステップＳ６５２；Ｎｏ）、振動検出部４０４は、再生判断部６５１からの信号をトリガとして、センサ４４１から取得したセンサ検知信号に基づいて振動を検出し、振動回数情報を出力する（ステップＳ１０３）。 When it is determined that the reproduction is not being performed (step S652; No), the vibration detection unit 404 detects a vibration based on the sensor detection signal acquired from the sensor 441 using the signal from the reproduction determination unit 651 as a trigger, and the vibration frequency information. Is output (step S103).
　続けて、判別部１０５により用途判別処理（ステップＳ１０４）が実行された後、再生判断部６５１は、入力受付部１０６からの指示に基づいて、電源をＯＦＦにする指示を受け付けたか否かを判断する（ステップＳ６５３）。 Subsequently, after the use determining process (step S104) is executed by the determining unit 105, the reproduction determining unit 651 determines whether an instruction to turn off the power has been received based on an instruction from the input receiving unit 106. (Step S653).
　電源をＯＦＦにする指示を受け付けていないと判断した場合（ステップＳ６５３；Ｎｏ）、再生判断部６５１は、コンテンツの再生中であるか否かの判断処理（ステップＳ６５２）を実行する。また、電源をＯＦＦにする入力を受け付けたと判断した場合（ステップＳ６５３；Ｙｅｓ）、ＢＤ再生装置６００は処理を終了する。 When it is determined that an instruction to turn off the power has not been received (step S653; No), the reproduction determination unit 651 executes a determination process (step S652) as to whether or not the content is being reproduced. If it is determined that an input for turning off the power has been received (step S653; Yes), the BD playback device 600 ends the process.
　本実施形態によれば、再生処理を実行していない時に振動を検出するため、振動を検出時には音声が出力されていない。そのため、音声出力による振動の影響を受けずに、正確に振動を検出することが可能になる。 According to the present embodiment, since the vibration is detected when the reproduction process is not executed, no sound is output when the vibration is detected. Therefore, it is possible to accurately detect vibration without being affected by vibration due to audio output.
（第７実施形態）
　本発明の第７実施形態に係るＢＤ再生装置は、第１実施形態に係るＢＤ再生装置１００と同様に、サーボ信号に基づいて振動を検出するとともに、用途を判別し、その判別した用途に応じたモードでＢＤを再生する装置である。第７実施形態に係るＢＤ再生装置は、振動回数ＮＶではなく、振動が検出された割合（振動検出率，ＶＤＲ）によって用途を判別する。 (Seventh embodiment)
Similar to the BD playback device 100 according to the first embodiment, the BD playback device according to the seventh embodiment of the present invention detects vibration based on the servo signal, determines the use, and according to the determined use. Is a device for playing back a BD in a different mode. BD playback apparatus according to the seventh embodiment, not the number of oscillations N V, to determine the application by the rate of vibration is detected (vibration detection rate, VDR).
　ＢＤ再生装置７００について、図１４～１９を参照して説明する。 The BD playback device 700 will be described with reference to FIGS.
　ＢＤ再生装置７００は、図１４に示すように、ＢＤ再生装置１００と概ね同様の構成を備えており、ＢＤ再生装置１００の振動検出部１０４及び判別部１０５に代えて振動検出部７０４及び判別部７０５を備える。 As shown in FIG. 14, the BD playback device 700 has substantially the same configuration as the BD playback device 100, and instead of the vibration detection unit 104 and the determination unit 105 of the BD playback device 100, a vibration detection unit 704 and a determination unit. 705.
　振動検出部７０４は、振動検出部１０４と同様に、検出された振動に関する振動検出情報を出力する。振動検出部７０４は、図１５に示すように、第１実施形態に係る振動検出部１０４とは詳細な構成が異なる。本実施形態に係る振動検出部７０４は、振動検出部１０４が備える構成要素に加えてサンプリング回数記憶部７１７を備え、初期化部１１３及びインクリメント部１１６に代えて初期化部７１３及びインクリメント部７１６を備える。 The vibration detection unit 704 outputs vibration detection information related to the detected vibration, similarly to the vibration detection unit 104. As shown in FIG. 15, the vibration detection unit 704 has a detailed configuration different from that of the vibration detection unit 104 according to the first embodiment. The vibration detection unit 704 according to the present embodiment includes a sampling number storage unit 717 in addition to the components included in the vibration detection unit 104, and includes an initialization unit 713 and an increment unit 716 instead of the initialization unit 113 and the increment unit 116. Prepare.
　サンプリング回数記憶部７１７は、振動検出用信号ＴＳＨＯＣＫを生成するサンプリング処理が実行された回数であるサンプリング回数ＮＳを示すサンプリング回数情報を記憶しており、ＲＡＭなどによって実現される。 Sampling count storage unit 717 stores a sampling count information indicating the number of times of sampling N S is the number of times the sampling process is performed to generate a vibration detection signal T SHOCK, it is realized by a RAM.
　初期化部７１３は、振動を検出するための初期化処理として、タイマ１１２を起動するとともに、振動回数記憶部１１１が記憶している振動回数情報及びサンプリング回数情報をリセットする。 Initializing unit 713, as an initialization process for detecting the vibration, as well as starts the timer 112, and resets the number of vibration times information and sampling frequency information vibration frequency storage unit 111 stores.
　インクリメント部７１６は、信号比較部１１５の比較結果を示す情報を取得し、サンプリング回数記憶部７１７に記憶されたサンプリング回数情報が示すサンプリング回数ＮＳをインクリメントする。また、インクリメント部７１６は、比較結果に応じて、振動回数記憶部１１１に記憶された振動回数情報が示す振動回数ＮＶをインクリメントする。さらに、インクリメント部１１６は、振動回数ＮＶ及びサンプリング回数ＮＳを含む振動検出情報を出力する。 Increment unit 716 acquires information indicating the comparison result of the signal comparison unit 115 increments the sampling number N S indicated by the number of sampling information stored in the sampling frequency storage unit 717. Also, the increment unit 716, according to the comparison result, increments the number of vibrations N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111. Furthermore, the increment unit 116 outputs a vibration detection information including the number of vibration times N V and the sampling number N S.
　図１４に戻り、判別部７０５は、振動検出情報を振動検出部７０４から取得し、取得した振動検出情報に基づいてＢＤ再生装置７００の用途が据置用と搬送用のいずれであるかを判別し、判別結果を示す情報を出力する。判別部７０５は、図１６に示すように、第１実施形態に係る判別部１０５とは詳細な構成が異なる。本実施形態に係る判別部７０５は、検出率算出部７２３と検出率比較部７２１と用途決定部７２２とを備える。 Returning to FIG. 14, the determination unit 705 acquires vibration detection information from the vibration detection unit 704, and determines whether the use of the BD reproduction device 700 is for stationary use or for conveyance based on the acquired vibration detection information. The information indicating the discrimination result is output. As illustrated in FIG. 16, the determination unit 705 has a detailed configuration different from that of the determination unit 105 according to the first embodiment. The determination unit 705 according to the present embodiment includes a detection rate calculation unit 723, a detection rate comparison unit 721, and an application determination unit 722.
　検出率算出部７２３は、振動検出部７０４から取得した振動検出情報を参照して、振動回数ＮＶをサンプリング回数ＮＳで除することによって得られる値を振動検出率ＶＤＲとして算出する。 Detection rate calculation section 723 refers to the vibration detection information obtained from the vibration detecting unit 704 calculates a value obtained by dividing the number of vibration times N V at sampling times N S as a vibration detection rate VDR.
　検出率比較部７２１は、振動検出率を示す振動検出率情報を検出率算出部７２３から取得し、振動検出率と予め設定された閾値ＴＶ３とを比較し、比較結果を示す情報を出力する。 The detection rate comparison unit 721 acquires vibration detection rate information indicating the vibration detection rate from the detection rate calculation unit 723, compares the vibration detection rate with a preset threshold TV 3, and outputs information indicating the comparison result. .
　用途決定部７２２は、検出率比較部７２１から取得した情報が示す比較結果に基づいて、ＢＤ再生装置７００の用途が「据置用」と「搬送用」のいずれであるかを決定し、決定内容を示す情報を出力する。 The usage determining unit 722 determines whether the usage of the BD playback device 700 is “for stationary” or “for conveying” based on the comparison result indicated by the information acquired from the detection rate comparing unit 721. The information indicating is output.
　ＢＤ再生装置７００が実行する処理について、フローチャートを参照して説明する。 Processing executed by the BD playback device 700 will be described with reference to a flowchart.
　図１７は、ＢＤ再生装置７００が実行する処理の概要を示す。同図に示されるように、ＢＤ再生装置７００が実行する処理は、概ねＢＤ再生装置１００が実行する処理と同様であり、振動検出処理（ステップＳ７０３）及び用途判別処理（ステップＳ７０４）の詳細が異なる。各処理について、図１８及び図１９を参照して説明する。 FIG. 17 shows an outline of processing executed by the BD playback device 700. As shown in the figure, the process executed by the BD playback apparatus 700 is substantially the same as the process executed by the BD playback apparatus 100, and details of the vibration detection process (step S703) and the application determination process (step S704) are described. Different. Each process will be described with reference to FIGS. 18 and 19.
　振動検出処理（ステップＳ７０３）は振動検出部７０４によって実行される処理であり、その詳細を図１８に示す。 The vibration detection process (step S703) is a process executed by the vibration detection unit 704, and details thereof are shown in FIG.
　初期化部７１３は、振動回数記憶部１１１に記憶された振動回数情報が示す振動回数ＮＶを０にリセットし、サンプリング回数記憶部７１７に記憶されたサンプリング回数情報に含まれるサンプリング回数ＮＳを０にリセットし、タイマ１１２を起動させる（ステップＳ７１１）。 Initializing unit 713, the number of vibration times N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111 is reset to 0, the sampling number N S contained in the stored sampled frequency information to the sampling frequency storage unit 717 Reset to 0 and start the timer 112 (step S711).
　サンプリング部１１４は、タイマ１１２を参照しながら、振動検出時間ＶＤＴがＴ１になるまでの間（ステップＳ１１２）、サンプリング処理（ステップＳ１１３）を実行する。続けて、信号比較部１１５は、振動検出用信号ＴＳＨＯＣＫの比較判断処理（ステップＳ１１４）を実行する。 Sampling unit 114, with reference to the timer 112, until the vibration detection time VDT is T 1 (step S112), and the sampling process is performed (step S113). Subsequently, the signal comparison unit 115 executes a comparison determination process (step S114) of the vibration detection signal T SHOCK .
　振動検出用信号ＴＳＨＯＣＫが閾値ＴＶ１以上である場合（ステップＳ１１４；Ｙｅｓ）、インクリメント部７１６は、振動回数ＮＶのインクリメント処理（ステップＳ１１５）を実行する。詳細には、インクリメント部７１６は、振動回数記憶部１１１に記憶された振動回数情報が示す振動回数ＮＶに１を加算し、加算後の振動回数ＮＶを振動回数情報として振動回数記憶部１１１に記憶させる（ステップＳ１１５）。 If the vibration detection signal T SHOCK is the threshold value TV 1 or more (step S114; Yes), the increment unit 716 performs increment processing of the number of vibrations N V a (step S115). Specifically, the increment unit 716 adds one to the number of vibrations N V indicated by the oscillation frequency information stored in the vibration frequency storage unit 111, the vibration frequency storage unit 111 the number of vibrations N V after addition as the vibration frequency information (Step S115).
　振動検出用信号ＴＳＨＯＣＫが閾値ＴＶ１未満である場合（ステップＳ１１４；Ｎｏ）、又は、振動回数ＮＶのインクリメント処理（ステップＳ１１５）の後、インクリメント部７１６は、サンプリング回数ＮＳのインクリメント処理（ステップＳ７１７）を実行する。詳細には、インクリメント部７１６は、サンプリング回数記憶部７１７に記憶されたサンプリング回数情報が示すサンプリング回数ＮＳに１を加算し、加算後のサンプリング回数ＮＳをサンプリング回数情報としてサンプリング回数記憶部７１７に記憶させる（ステップＳ７１７）。 If the vibration detection signal T SHOCK is less than the threshold value TV 1 (Step S114; No), or after the increment processing of the vibration number N V (step S115), the increment unit 716, increment processing of the sampling number N S ( Step S717) is executed. Specifically, the increment unit 716 adds 1 to the sampling number N S indicated by the number of sampling information stored in the sampling frequency storage unit 717, a sampling frequency storage unit 717 the sampling number N S after the addition as the sampling frequency information (Step S717).
　インクリメント部７１６は、信号比較部１１５を介して振動検出時間ＶＤＴがＴ１になったことを示す情報を取得すると、振動回数記憶部１１１及びサンプリング回数記憶部７１７から振動回数情報及びサンプリング回数情報を取得する。続けて、インクリメント部７１６は、取得した情報群が示す振動回数ＮＶ及びサンプリング回数ＮＳを含む振動検出情報を出力する（ステップＳ１１６）。これにより、振動検出処理（ステップＳ７０３）が終了する。 Increment unit 716, the vibration detection time VDT via a signal comparator 115 acquires the information indicating that becomes T 1, the number of vibration times information and the sampling frequency information from the vibration frequency storage unit 111 and a sampling frequency storage unit 717 get. Subsequently, the increment unit 716 outputs the vibration detection information including the number of vibration times N V and the sampling number N S indicated by the acquired information group (step S116). Thereby, the vibration detection process (step S703) ends.
　用途判別処理（ステップＳ７０４）は判別部７０５によって実行される処理であり、その詳細を図１９に示す。 The application determination process (step S704) is a process executed by the determination unit 705, and details thereof are shown in FIG.
　検出率算出部７２３は、振動検出情報をインクリメント部７１６から取得し（ステップＳ７２１）、取得した振動検出情報に含まれる振動回数ＮＶをサンプリング回数ＮＳで除することによって、振動検出率を算出する（ステップＳ７２６）。 Detection rate calculation section 723 acquires the vibration detection information from the increment unit 716 (step S721), by dividing the number of vibrations N V included in the acquired vibration detection information at the sampling times N S, calculates the vibration detection rate (Step S726).
　検出率比較部７２１は、振動検出率を示す振動検出率情報を検出率算出部７２３から取得し、取得した振動検出率情報に含まれる振動検出率と予め設定された閾値ＴＶ３とを比較し、比較結果を示す情報を出力する（ステップＳ７２２）。 Detection rate comparison unit 721 acquires the vibration detection rate information indicating a vibration detection rate from the detection rate calculation section 723 compares the threshold value TV 3 set in advance and the vibration detection rate included in the acquired vibration detection rate information Then, information indicating the comparison result is output (step S722).
　用途決定部７２２は、比較結果を示す情報を取得し、当該情報に含まれる比較結果において振動検出率が閾値ＴＶ３以上である場合（ステップＳ７２２；Ｙｅｓ）、用途が搬送用であると決定する（ステップＳ７２３）。また、用途決定部７２２は、比較結果において振動検出率が閾値ＴＶ３未満である場合（ステップＳ７２２；Ｎｏ）、用途が据置用であると決定する（ステップＳ７２４）。 The use determining unit 722 acquires information indicating the comparison result, and when the vibration detection rate is equal to or higher than the threshold TV 3 in the comparison result included in the information (step S722; Yes), the use determining unit 722 determines that the use is for conveyance. (Step S723). Further, when the vibration detection rate is less than the threshold TV 3 in the comparison result (step S722; No), the use determining unit 722 determines that the use is for stationary use (step S724).
　用途決定部７２２は、決定した用途を示す判別情報を出力する（ステップＳ７２５）。すなわち、用途決定部７２２は、振動検出率が閾値ＴＶ３以上である場合（ステップＳ７２２；Ｙｅｓ）には搬送用であることを示す判別情報を、振動検出率が閾値ＴＶ３未満である場合（ステップＳ７２２；Ｎｏ）には用途が据置用であることを示す判別情報を判別情報記憶部１０１及び再生制御部１０３に出力する。 The usage determining unit 722 outputs discrimination information indicating the determined usage (step S725). In other words, the use determining unit 722 displays discriminating information indicating that it is for conveyance when the vibration detection rate is greater than or equal to the threshold TV 3 (step S722; Yes), and the vibration detection rate is less than the threshold TV 3 ( In step S722; No), discrimination information indicating that the application is for stationary use is output to the discrimination information storage unit 101 and the reproduction control unit 103.
　このように、本実施形態に係るＢＤ再生装置７００は、振動検出率に基づいて用途を判別する。本実施形態は、振動検出率に基づく用途判別方法を第１実施形態に係るＢＤ再生装置１００に適用した例であるが、この用途判別方法は、第２～第６実施形態に係るＢＤ再生装置に適用することもできる。これによって、各実施形態と同様の効果を奏する。 Thus, the BD playback device 700 according to the present embodiment determines the application based on the vibration detection rate. The present embodiment is an example in which the application determination method based on the vibration detection rate is applied to the BD playback device 100 according to the first embodiment. This application determination method is applied to the BD playback device according to the second to sixth embodiments. It can also be applied to. As a result, the same effects as those of the embodiments can be obtained.
　以上、本発明の実施形態に係るＢＤ再生装置及びその方法について説明したが、本発明はこれまで説明した実施形態に限定されるものではない。 As mentioned above, although the BD reproducing | regenerating apparatus concerning the embodiment of this invention and its method were demonstrated, this invention is not limited to embodiment described so far.
（変形例１）
　実施形態ではＢＤ再生装置を例に説明したが、各実施形態はコンテンツを示すコンテンツ情報を媒体に記録するＢＤ記録装置にも適用できる。例えば、実施形態１と同様の処理によって振動を検出し、用途を判別するＢＤ記録装置の構成例を図２０に示す。同図に示すように、ＢＤ記録装置８００は、判別情報記憶部１０１と、モード情報記憶部１０２と、振動検出部１０４と、判別部１０５と、入力受付部１０６と、撮像部８５１と、記録制御部８０３と、出力部８０８とを備える。 (Modification 1)
In the embodiment, the BD playback apparatus has been described as an example. However, each embodiment can be applied to a BD recording apparatus that records content information indicating content on a medium. For example, FIG. 20 shows a configuration example of a BD recording apparatus that detects vibrations by the same process as in the first embodiment and discriminates the application. As shown in the figure, the BD recording apparatus 800 includes a discrimination information storage unit 101, a mode information storage unit 102, a vibration detection unit 104, a discrimination unit 105, an input reception unit 106, an imaging unit 851, and a recording. A control unit 803 and an output unit 808 are provided.
　判別情報記憶部１０１とモード情報記憶部１０２とは、それぞれ第１実施形態と同様に、判別情報１０１ａとモード情報１０２ａとを記憶している。 The discrimination information storage unit 101 and the mode information storage unit 102 store discrimination information 101a and mode information 102a, respectively, as in the first embodiment.
　振動検出部１０４は、第１実施形態と同様に、ＢＤ記録装置８００に生じた振動回数ＮＶを示す情報を、ＢＤ記録装置８００の振動に関する振動検出情報として出力する。 Vibration detection unit 104, similarly to the first embodiment, information indicating the number of vibrations N V generated on BD recorder 800, and outputs as the vibration detection information regarding the vibration of the BD recorder 800.
　判別部１０５は、第１実施形態と同様に、振動検出情報を取得し、取得した振動検出情報に含まれる振動回数ＮＶに基づいて、ＢＤ記録装置８００の用途が一定以上の振動を伴う搬送用と一定以上の振動を伴わない据置用のいずれであるかを判別する。 Determination unit 105, similarly to the first embodiment, the vibration detection information acquires, based on the number of vibrations N V included in the acquired vibration detection information, conveying the application of the BD recorder 800 is accompanied by certain more oscillating It is discriminated whether it is for use or stationary for a certain amount of vibration.
　入力受付部１０６は、第１実施形態と同様に、利用者などが操作することによって入力された信号を受け付けて、受け付けた信号を出力する。 As in the first embodiment, the input receiving unit 106 receives a signal input by an operation by a user or the like, and outputs the received signal.
　撮像部８５１は、画像を撮影し、撮影したコンテンツを示すコンテンツ情報を生成する。撮像部８５１は、例えばレンズ、撮像素子などを備える。 The imaging unit 851 captures an image and generates content information indicating the captured content. The imaging unit 851 includes, for example, a lens and an imaging element.
　記録制御部８０３は、判別部１０５によって搬送用であると判別された場合に、据置用での再生に適した据置用モードよりも機能が制限された搬送用モードでコンテンツ情報を生成し、生成したコンテンツ情報をＢＤ１０７に記録するための制御を実行する。 When the discriminating unit 105 determines that the recording control unit 803 is for transport, the recording control unit 803 generates content information in a transport mode in which the function is limited compared to the stationary mode suitable for stationary playback. Control for recording the obtained content information on the BD 107 is executed.
　出力部８０８は、記録制御部８０３により生成されたコンテンツ情報を取得して、ＢＤ１０７にコンテンツ情報を記録する。 The output unit 808 acquires the content information generated by the recording control unit 803 and records the content information on the BD 107.
　本変形例に係るＢＤ記録装置８００は、第１実施形態に係るＢＤ再生装置１００の変形例であるが、この変形は、第２実施形態から第７実施形態に係るＢＤ再生装置にも適用できる。 The BD recording apparatus 800 according to the present modification is a modification of the BD playback apparatus 100 according to the first embodiment, but this modification can also be applied to the BD playback apparatus according to the second to seventh embodiments. .
（変形例２）
　各実施形態では、再生又は記録する情報が記録された媒体がＢＤである場合を例に説明したが、媒体はＤＶＤ、ＣＤなどの光ディスクであってよい。 (Modification 2)
In each embodiment, the case where the medium on which information to be reproduced or recorded is recorded is a BD, but the medium may be an optical disk such as a DVD or a CD.
　例えば、各実施形態において例示した搬送用モードは、据置用モードとは利用する機能が異なる再生（記録）方式、好ましくは、据置用モードよりもコンテンツ再生（記録）処理においてＢＤ再生（記録）装置に掛かる負荷が小さい再生方式の一例である。 For example, the transport mode exemplified in each embodiment has a different reproduction (recording) method than the stationary mode, and preferably a BD reproduction (recording) device in the content reproduction (recording) process than the stationary mode. This is an example of a reproduction method with a small load on the.
　利用する機能が異なるモードを採用することによって、例えば第１用途に適した再生方式である第１モードでは、ファームウェアを更新する必要がないようにすること、又はファームウェアを更新する頻度を低減させることが可能になる。また、第２用途に適した再生方式である第２モードよりも低スペックの再生（記録）装置で処理できるように、第１モードを設定することができる。したがって、再生（記録）装置の構造の簡易化とコンパクト化が可能になる。 By adopting a mode that uses different functions, for example, in the first mode, which is a playback method suitable for the first application, it is not necessary to update the firmware, or the frequency of updating the firmware is reduced. Is possible. In addition, the first mode can be set so that it can be processed by a reproduction (recording) device having a lower specification than the second mode, which is a reproduction method suitable for the second application. Therefore, the structure of the reproducing (recording) apparatus can be simplified and made compact.
　このような効果は、コンテンツ再生（記録）処理においてＢＤ再生（記録）装置に掛かる負荷が異なるモードを採用した場合にも、同様に得ることができる。すなわち、処理負荷が小さいモードでは、ファームウェアを更新する必要がないようにすること、又はファームウェアを更新する頻度を低減させることが可能になる。また、処理負荷が小さいモードでは、処理負荷が小さいモードよりも低スペックの再生（記録）装置で処理することができ、再生（記録）装置の構造の簡易化とコンパクト化が可能になる。 Such an effect can be similarly obtained even when a mode in which a load applied to the BD playback (recording) apparatus is different is adopted in the content playback (recording) process. That is, in a mode with a small processing load, it is possible to eliminate the need to update the firmware, or to reduce the frequency of updating the firmware. Further, in a mode with a small processing load, processing can be performed with a reproduction (recording) apparatus having a lower specification than in a mode with a small processing load, and the structure of the reproduction (recording) apparatus can be simplified and made compact.
（変形例３）
　各実施形態では、コンテンツが音声と動画像とを含む場合を例に説明したが、コンテンツは、音声と動画像のいずれか一方のみを含むものであってもよい。 (Modification 3)
In each embodiment, the case where the content includes sound and a moving image has been described as an example. However, the content may include only one of the sound and the moving image.
（変形例４）
　実施形態では、振動検出部が、サーボ信号又はセンサから出力される信号に基づいて、振動検出情報を出力する場合を例に説明したが、再生装置の振動に関する振動検出情報を出力する例はこれらに限られない。振動検出情報の生成には、ＢＤ再生又は記録装置が設けられる機器特有の信号が利用されてもよい。 (Modification 4)
In the embodiment, the case where the vibration detection unit outputs the vibration detection information based on the servo signal or the signal output from the sensor has been described as an example. However, examples of outputting the vibration detection information related to the vibration of the playback device are described here. Not limited to. For generation of the vibration detection information, a signal specific to the device provided with the BD playback or recording device may be used.
　例えば、ＢＤ再生装置が車載用である場合、振動検出部は、スピードメータに車速を表示するために一般的な自動車に設けられる車速を検知するためのパルス発生装置が発するパルス信号を利用してもよい。この場合、振動検出部は、パルス信号を検知したときにそのことを示す振動検出情報を出力する。判別部は、パルス信号を検知したことを示す振動検出情報を取得した場合に、用途を搬送用と判別する。 For example, when the BD playback device is for in-vehicle use, the vibration detector uses a pulse signal generated by a pulse generator for detecting a vehicle speed provided in a general automobile to display the vehicle speed on a speedometer. Also good. In this case, the vibration detection unit outputs vibration detection information indicating that when a pulse signal is detected. A discrimination | determination part discriminate | determines a use as an object for conveyance, when the vibration detection information which shows having detected the pulse signal is acquired.
　これにより、ＢＤ再生装置が用途を判別するための構成及び処理を簡素にすることができ、ＢＤ再生装置のコンパクト化を図りながら用途を判別することが可能になる。 This makes it possible to simplify the configuration and processing for the BD playback device to determine the application, and to determine the application while reducing the size of the BD playback device.
（変形例５）
　各実施形態では、用途が搬送用及び据置用である場合を例に説明したが、用途はこれらに限られず、振動によって判別できる用途であればよい。例えば、記録装置としてのビデオカメラであれば、三脚などで固定して使用する固定用と手持ちで使用する手持ち用とが用途としてある。また、再生機能を備えたビデオカメラであれば、同じビデオカメラで画像の記録と再生をすることができ、このようなビデオカメラは本発明に係る記録装置に含まれるだけでなく、再生装置にも含まれる。 (Modification 5)
In each embodiment, although the case where a use is for conveyance and stationary use was demonstrated to the example, a use is not restricted to these, What is necessary is just a use which can be discriminate | determined by a vibration. For example, in the case of a video camera as a recording apparatus, there are uses for fixing by using a tripod or the like and for hand-held use by hand. In addition, if the video camera has a playback function, the same video camera can record and play back images. Such a video camera is not only included in the recording device according to the present invention, but also in the playback device. Is also included.
（変形例６）
　各実施形態では用途判別処理の都度、その結果は更新されることになるが、一旦判別された結果が保持され、例えば利用者が更新指示を与えない限り保持されてもよい。また、一定の期間、時間、又はサンプリング回数の後に、判別部が用途を判別し、判別情報記憶部の判別情報を更新してもよい。本変形例は、実施形態１～７及び他の変形例で説明した装置及び方法に適用することができる。本変形例によれば、判別処理により装置に掛かる負荷を軽減することができる。 (Modification 6)
In each embodiment, the result is updated every time the application determining process is performed. However, the determined result may be retained, and may be retained, for example, unless the user gives an update instruction. Further, after a certain period, time, or number of samplings, the determination unit may determine the use and update the determination information in the determination information storage unit. This modification can be applied to the apparatuses and methods described in the first to seventh embodiments and other modifications. According to this modification, it is possible to reduce the load applied to the apparatus by the discrimination process.
（変形例７）
　各実施形態では、振動検出時間ＶＤＴごとに用途が判別されることになるが、一定の期間、時間、又は回数以上の振動検出のためのサンプリング結果に基づいて用途が判別されてもよい。 (Modification 7)
In each embodiment, the use is determined for each vibration detection time VDT. However, the use may be determined based on a sampling result for detecting vibrations over a certain period, time, or number of times.
　本変形例の場合、本発明に係る装置は、振動検出のためのサンプリング履歴情報を記憶しているサンプリング履歴記憶部と、当該履歴情報に基づいて一定の期間、時間、又は回数以上のサンプリング履歴が蓄積されたか否かを判断する履歴判断部とを備える。振動履歴情報は、振動が検知されたか否かを示す情報を含み、さらに、サンプリング時期又はサンプリング時間を適宜含む。 In the case of this modification, the apparatus according to the present invention includes a sampling history storage unit that stores sampling history information for vibration detection, and a sampling history of a certain period, time, or number of times based on the history information. And a history determination unit that determines whether or not is stored. The vibration history information includes information indicating whether vibration is detected, and further includes a sampling time or a sampling time as appropriate.
この場合、履歴判断部によって一定の期間、時間、又は回数以上のサンプリング履歴が蓄積されたと判断された場合に、判別部は用途を判別し、判別した結果によって判別情報記憶部の判別情報を更新する。 In this case, when the history determination unit determines that a sampling history of a certain period, time, or number of times has been accumulated, the determination unit determines the use and updates the determination information in the determination information storage unit based on the determination result To do.
　履歴判断部によって一定の期間、時間、又は回数以上のサンプリング履歴が蓄積されていないと判断された場合に、判別部は判別情報記憶部の判別情報を更新しない。 When the history determination unit determines that the sampling history of a certain period, time, or number of times is not accumulated, the determination unit does not update the determination information in the determination information storage unit.
　本変形例は、実施形態１～７及び他の変形例で説明した装置及び方法に適用できる。本変形例によれば、振動履歴に基づいて用途が判別されるため、偶発的な振動が判別に与える影響は軽減する。そのため、判別の誤りを減らすことができる。 This modification can be applied to the apparatuses and methods described in the first to seventh embodiments and other modifications. According to this modification, the use is determined based on the vibration history, so that the influence of accidental vibration on the determination is reduced. Therefore, it is possible to reduce discrimination errors.
（変形例８）
　判別情報１０１ａには、予め初期値が設定されていてもよい。判別情報１０１ａの初期値には、搬送用が設定されることが望ましい。初期値に据置用が設定されると、実際の用途が搬送用である場合にファームウェアの更新をしていないために、コンテンツの再生ができなくなることがあり得る。搬送用を初期値とすることによって、少なくとも最初の用途判別処理が実行されるまで、コンテンツは搬送用モードで再生される。したがって、ファームウェアの更新をしていないために、コンテンツの再生ができなくなることを防ぐことができる。 (Modification 8)
An initial value may be set in advance in the discrimination information 101a. It is preferable that the initial value of the determination information 101a is set for conveyance. If stationary is set as the initial value, there is a possibility that the content cannot be reproduced because the firmware is not updated when the actual use is for transportation. By setting the value for conveyance as an initial value, the content is reproduced in the conveyance mode until at least the first use determination process is executed. Therefore, it is possible to prevent the content from being unable to be reproduced because the firmware has not been updated.
　また、判別情報１０１ａの初期値は、利用者からの電源をＯＮ又はＯＦＦにする指示を受け付ける度に、その直後に搬送用に設定されてもよい。これによって、据置用と搬送用とのいずれの用途にも装置が利用される場合であっても、ファームウェアの更新をしていないために、コンテンツの再生ができなくなることを防ぐことができる。 Further, the initial value of the discrimination information 101a may be set for conveyance immediately after receiving an instruction to turn on or off the power from the user. As a result, even if the apparatus is used for both stationary use and transfer use, it is possible to prevent the content from being unable to be reproduced because the firmware has not been updated.
（物理的構成）
　図２１は、本発明の各実施形態に係るＢＤ再生装置１００，２００，４００，６００，７００の物理的構成の一例を示す。ＢＤ再生装置１００，２００，４００，６００，７００は、記憶部９０１と、センサ４４１と、プロセッサ９０２と、出力部１０８（１０９，１１０）とを備える。各要素は、内部バス９０３により通信可能に接続されている。図２１では各要素は１つとしているが、各要素は複数に分けて備えられてもよい。 (Physical configuration)
FIG. 21 shows an example of a physical configuration of the BD playback device 100, 200, 400, 600, 700 according to each embodiment of the present invention. The BD playback devices 100, 200, 400, 600, and 700 include a storage unit 901, a sensor 441, a processor 902, and an output unit 108 (109, 110). Each element is communicably connected via an internal bus 903. In FIG. 21, each element is one, but each element may be divided into a plurality of elements.
　記憶部９０１は、フラッシュメモリ、ハードディスクドライブなどであり、各実施形態に係る判別情報記憶部１０１，モード情報記憶部１０２に相当し、判別情報１０１ａ、モード情報１０２ａを記憶している。記憶部９０１は、各閾値、プロセッサ９０２が実行するソフトウェア・プログラムなどを記憶していてもよい。 The storage unit 901 is a flash memory, a hard disk drive, or the like, corresponds to the discrimination information storage unit 101 and the mode information storage unit 102 according to each embodiment, and stores discrimination information 101a and mode information 102a. The storage unit 901 may store each threshold, a software program executed by the processor 902, and the like.
　センサ４４１は、第４、第５及び第６実施形態において使用される加速度センサ、角速度（ジャイロ）センサなどである。センサ４４１は、第１、第２、第３及び第７実施形態に係るＢＤ再生装置１００，２００，７００には備えられなくてもよい。 The sensor 441 is an acceleration sensor, an angular velocity (gyro) sensor, or the like used in the fourth, fifth, and sixth embodiments. The sensor 441 may not be provided in the BD playback devices 100, 200, and 700 according to the first, second, third, and seventh embodiments.
　プロセッサ９０２は、記憶部９０１に記憶されたソフトウェア・プログラム、自身に組み込まれたプログラムを実行する演算処理装置である。プロセッサ９０１は、それらのプログラムを実行することによって、各実施形態に係る再生制御部１０３、振動検出部１０４，４０４，７０４、判定部１０５，７０５、及び入力受付部１０６の機能を発揮する。 The processor 902 is an arithmetic processing unit that executes a software program stored in the storage unit 901 and a program incorporated therein. The processor 901 exhibits the functions of the reproduction control unit 103, the vibration detection units 104, 404, and 704, the determination units 105 and 705, and the input reception unit 106 according to each embodiment by executing these programs.
　出力部１０８は、画像を出力する液晶モニタ、プラズマディスプレイなど（画像出力部１０９）、及び音声を出力するスピーカなど（音声出力部１１０）を含む。出力部１０８は、図２１に示すようにＢＤ再生装置１００，２００，４００，６００，７００に内蔵されてもよいが、ＢＤ再生装置１００，２００，４００，６００，７００の外部に着脱可能に設けられてもよい。 The output unit 108 includes a liquid crystal monitor that outputs an image, a plasma display (image output unit 109), and a speaker (audio output unit 110) that outputs audio. The output unit 108 may be built in the BD playback device 100, 200, 400, 600, 700 as shown in FIG. 21, but is detachably provided outside the BD playback device 100, 200, 400, 600, 700. May be.
　次に、図２２は、本発明の一実施形態に係るＢＤ記録装置８００の物理的構成の一例を示す。ＢＤ記録装置８００は、記憶部１００１と、プロセッサ１００２と、出力部８０８と、撮像部８５１とを備える。各要素は、内部バス１００３により通信可能に接続されている。図２２では、各要素は１つとしているが、各要素は複数に分けて備えられてもよい。また、適宜、加速度センサ、角速度（ジャイロ）センサなどのセンサが備えられてもよい。 Next, FIG. 22 shows an example of a physical configuration of a BD recording apparatus 800 according to an embodiment of the present invention. The BD recording apparatus 800 includes a storage unit 1001, a processor 1002, an output unit 808, and an imaging unit 851. Each element is communicably connected via an internal bus 1003. In FIG. 22, each element is one, but each element may be divided into a plurality of elements. In addition, sensors such as an acceleration sensor and an angular velocity (gyro) sensor may be provided as appropriate.
　記憶部１００１は、フラッシュメモリ、ハードディスクドライブなどであり、第８実施形態に係る判別情報記憶部１０１，モード情報記憶部１０２に相当し、判別情報１０１ａ、モード情報１０２ａを記憶している。記憶部１００１は、各閾値、プロセッサ１００２が実行するソフトウェア・プログラムなどを記憶していてもよい。 The storage unit 1001 is a flash memory, a hard disk drive, or the like, corresponds to the determination information storage unit 101 and the mode information storage unit 102 according to the eighth embodiment, and stores the determination information 101a and the mode information 102a. The storage unit 1001 may store each threshold value, a software program executed by the processor 1002, and the like.
　プロセッサ１００２は、記憶部１００１に記憶されたソフトウェア・プログラム、自身に組み込まれたプログラムを実行する演算処理装置である。プロセッサ１００２は、それらのプログラムを実行することによって、第８実施形態に係る記録制御部８０３、振動検出部１０４、判定部１０５、及び入力受付部１０６の機能を発揮する。 The processor 1002 is an arithmetic processing unit that executes a software program stored in the storage unit 1001 and a program incorporated therein. The processor 1002 performs the functions of the recording control unit 803, the vibration detection unit 104, the determination unit 105, and the input reception unit 106 according to the eighth embodiment by executing these programs.
　出力部８０８は、コンテンツ情報を取得して、ＢＤ１０７にコンテンツ情報を記録する部位であり、プリズム、レンズなどの光学機器、レーザダイオード、これらの作動を制御する制御部などを備える。 The output unit 808 is a part that acquires content information and records the content information on the BD 107, and includes an optical device such as a prism and a lens, a laser diode, and a control unit that controls the operation thereof.
　なお、本発明は、各実施形態及び各変形例を矛盾しない限度で任意に組み合わせたもの、さらに、本発明の要旨を変更しない範囲で各実施形態、各変形例、及びそれらを組み合わせたものに変更を加えたものを含む。また、本発明は、各実施形態、各変形例、及びそれらを組み合わせたものに係る方法に含まれるステップをコンピュータに実行させるプログラムとして実現されてもよい。さらに、本発明は、そのようなプログラムがコンピュータに読み取り可能に記録された記憶媒体として実現されてもよい。 Note that the present invention is arbitrarily combined with each embodiment and each modification as long as there is no contradiction, and further, each embodiment, each modification, and a combination thereof without departing from the gist of the present invention. Includes changes. Further, the present invention may be realized as a program that causes a computer to execute steps included in a method according to each embodiment, each modification, and a combination thereof. Furthermore, the present invention may be realized as a storage medium in which such a program is recorded so as to be readable by a computer.
　本発明は、２０１１年１月２１日に出願された日本国特許出願２０１１－１１２４０号に基づく。本明細書中に日本国特許出願２０１１－１１２４０号の明細書、特許請求の範囲、図面全体を参照として取り込むものとする。 The present invention is based on Japanese Patent Application No. 2011-11240 filed on January 21, 2011. The specification, claims, and entire drawings of Japanese Patent Application No. 2011-11240 are incorporated herein by reference.
　１００，２００，４００，６００，７００　ＢＤ再生装置
　１０１　判別情報記憶部
　１０１ａ　判別情報
　１０２　モード情報記憶部
　１０２ａ　モード情報
　１０３　再生制御部
　１０４，４０４，７０４　振動検出部
　１０５，７０５　判別部
　１０６　入力受付部
　１０７　ＢＤ
　１０８，８０８　出力部
　１０９　画像出力部
　１１０　音声出力部
　１１１　振動回数記憶部
　１１２　タイマ
　１１３，７１３　初期化部
　１１４　サンプリング部
　１１５　信号比較部
　１１６，７１６　インクリメント部
　１２１　振動回数比較部
　１２２，７２２　用途決定部
　２０１　無音判断部
　４４１　センサ
　６５１　再生判断部
　７１７　サンプリング回数記憶部
　７２１　検出率比較部
　７２３　検出率算出部
　８００　ＢＤ記録装置
　８０３　記録制御部
　８５１　撮像部
　９０１，１００１　記憶部
　９０２，１００２　プロセッサ
　９０３，１００３　内部バス 100, 200, 400, 600, 700 BD playback apparatus 101 Discrimination information storage unit 101a Discrimination information 102 Mode information storage unit 102a Mode information 103 Playback control unit 104, 404, 704 Vibration detection unit 105, 705 Discrimination unit 106 Input reception unit 107 BD
108,808 Output unit 109 Image output unit 110 Audio output unit 111 Vibration frequency storage unit 112 Timer 113, 713 Initialization unit 114 Sampling unit 115 Signal comparison unit 116, 716 Increment unit 121 Vibration frequency comparison unit 122, 722 Use determination unit 201 Silence determination unit 441 Sensor 651 Playback determination unit 717 Sampling count storage unit 721 Detection rate comparison unit 723 Detection rate calculation unit 800 BD recording device 803 Recording control unit 851 Imaging unit 901, 1001 Storage unit 902, 1002 Processor 903, 1003 Internal bus

Claims (14)

  1. 　再生装置の振動に関する振動検出情報を取得し、取得した振動検出情報に基づいて、再生装置が一定以上の振動を伴う第１の環境下での用途と一定以上の振動を伴わない第２の環境下での用途とのいずれであるかを判別する判別手段と、
    　前記判別手段によって第１の環境下での用途であると判別された場合に、第２の環境下での用途での再生に適した第２モードとは利用する機能が異なる第１モードで、コンテンツ情報を処理する再生制御手段と、
    　を備えることを特徴とする再生装置。     The vibration detection information related to the vibration of the playback device is acquired, and based on the acquired vibration detection information, the playback device is used in a first environment with a certain level of vibration and the second environment does not have a certain level of vibration. A discriminating means for discriminating whether the usage is below or
    When it is determined by the determination means that the application is in the first environment, the second mode suitable for playback in the application in the second environment is different from the second mode in the function used, Playback control means for processing content information;
    A playback apparatus comprising:
  2. 　前記第１モードは、前記第２モードよりも再生に利用する機能が制限された再生モードである
    　ことを特徴とする請求項１に記載の再生装置。     The playback apparatus according to claim 1, wherein the first mode is a playback mode in which functions used for playback are more limited than in the second mode.
  3. 　さらに再生装置の振動に関する振動検出情報を出力する振動検出手段を備え、
    　前記振動検出手段は、再生装置に生じた振動を検出し、検出された振動回数を含む振動検出情報を出力し、
    　前記判別手段は、振動検出情報に含まれる振動回数に基づいて、再生装置の用途が第１用途と第２用途のいずれであるかを判別する
    　ことを特徴とする請求項１に記載の再生装置。     Furthermore, it has a vibration detection means for outputting vibration detection information related to the vibration of the playback device,
    The vibration detection means detects vibration generated in the playback device, and outputs vibration detection information including the detected number of vibrations,
    The playback apparatus according to claim 1, wherein the determination unit determines whether the use of the playback apparatus is the first use or the second use based on the number of vibrations included in the vibration detection information. .
  4. 　前記再生制御手段は、媒体からコンテンツ情報を読み取るための処理を実行して、前記処理においてサーボ信号を出力し、
    　前記振動検出手段は、サーボ信号を前記再生制御手段から取得し、取得したサーボ信号に基づいて閾値以上の大きさの振動を検出し、検出された振動回数を含む振動検出情報を出力する
    　ことを特徴とする請求項３に記載の再生装置。     The reproduction control means executes a process for reading content information from the medium, and outputs a servo signal in the process,
    The vibration detection unit acquires a servo signal from the reproduction control unit, detects a vibration having a magnitude equal to or larger than a threshold based on the acquired servo signal, and outputs vibration detection information including the detected number of vibrations. The reproducing apparatus according to claim 3, wherein the reproducing apparatus is characterized.
  5. 　前記振動検出手段は、振動を検出するセンサを有し、前記センサからの信号に基づいて閾値以上の大きさの振動を検出し、検出された振動回数を含む振動検出情報を出力する
    　ことを特徴とする請求項３に記載の再生装置。     The vibration detection means includes a sensor for detecting vibration, detects vibration having a magnitude greater than a threshold based on a signal from the sensor, and outputs vibration detection information including the detected number of vibrations. The playback apparatus according to claim 3.
  6. 　さらに、音声を出力する音声出力手段を備え、
    　前記振動検出手段は、前記音声出力手段から出力される音声がない場合に、振動を検出し、振動検出情報を出力する
    　ことを特徴とする請求項３に記載の再生装置。     In addition, audio output means for outputting audio,
    The playback apparatus according to claim 3, wherein the vibration detection means detects vibration and outputs vibration detection information when there is no sound output from the sound output means.
  7. 　前記再生制御手段は、前記振動検出手段が振動を検出する場合に、前記音声出力手段から音声が出力されないように制御する
    　ことを特徴とする請求項６に記載の再生装置。     The playback apparatus according to claim 6, wherein the playback control means controls so that no sound is output from the sound output means when the vibration detection means detects vibration.
  8. 　さらに、コンテンツ情報のうち、コンテンツに含まれる音声を示す音声情報を前記再生制御手段から取得し、取得した音声情報に基づいて、再生中のコンテンツに音声が含まれるか否かを判断する無音判断手段を備え、
    　前記振動検出手段は、前記無音判断手段によって音声が含まれないと判断された場合に、振動を検出し、振動検出情報を出力する
    　ことを特徴とする請求項６に記載の再生装置。     Furthermore, silence determination for acquiring audio information indicating audio included in the content from the reproduction control unit and determining whether or not the content being reproduced includes audio based on the acquired audio information. With means,
    The reproduction apparatus according to claim 6, wherein the vibration detection unit detects vibration and outputs vibration detection information when the silence determination unit determines that no sound is included.
  9. 　前記振動検出手段は、前記再生制御手段が媒体に記録されたコンテンツ情報を読み取るための処理を実行する間に、振動を検出し、振動検出情報を出力する
    　ことを特徴とする請求項６に記載の再生装置。     The vibration detection unit detects vibration and outputs vibration detection information while the reproduction control unit executes processing for reading content information recorded on a medium. Playback device.
  10. 　さらに、コンテンツの再生中であるか否かを示す再生情報を前記再生制御手段から取得し、取得した再生情報に基づいて、コンテンツの再生中であるか否かを判断する再生判断手段を備え、
    　前記振動検出手段は、前記再生判断手段によってコンテンツの再生中でないと判断された場合に、振動を検出し、振動検出情報を出力する
    　ことを特徴とする請求項５に記載の再生装置。     Furthermore, it comprises reproduction determination means for obtaining reproduction information indicating whether or not the content is being reproduced from the reproduction control means, and determining whether or not the content is being reproduced based on the obtained reproduction information,
    The playback apparatus according to claim 5, wherein the vibration detection unit detects vibration and outputs vibration detection information when the playback determination unit determines that the content is not being played back.
  11. 　記録装置の振動に関する振動検出情報を前記振動検出情報を取得し、取得した振動検出情報に基づいて、記録装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを判別する判別手段と、
    　前記判別手段によって第１用途であると判別された場合に、第２用途での記録に適した第２モードとは利用する機能が異なる第１モードでコンテンツ情報を生成し、生成したコンテンツ情報を媒体に記録するための制御を実行する記録制御手段と、
    　生成されたコンテンツ情報を前記記録制御手段から取得し、媒体にコンテンツ情報を記録する出力手段とを備える
    　ことを特徴とする記録装置。     The vibration detection information related to the vibration of the recording apparatus is acquired as the vibration detection information. Based on the acquired vibration detection information, the use of the recording apparatus is a first application that involves a certain level of vibration and a second that does not involve a certain level of vibration. A discriminating means for discriminating between the usage and the usage;
    When it is determined by the determining means that the application is the first use, content information is generated in the first mode that is different from the second mode suitable for recording in the second application, and the generated content information is Recording control means for executing control for recording on a medium;
    A recording apparatus comprising: output means for acquiring the generated content information from the recording control means and recording the content information on a medium.
  12. 　再生装置の振動に関する振動検出情報に基づき、再生装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを判別し、
    　第１用途であると判別された場合に、第２用途での再生に適した第２モードとは利用する機能が異なる第１モードで、媒体に記録されたコンテンツ情報を読み取る
    　ことを特徴とする再生方法。     Based on the vibration detection information relating to the vibration of the playback device, it is determined whether the usage of the playback device is a first usage with a certain level of vibration or a second usage without a certain level of vibration,
    The content information recorded on the medium is read in the first mode, which is different from the second mode suitable for reproduction in the second use when it is determined that the use is the first use. Playback method.
  13. 　再生装置において実行させるプログラムにおいて、
    　振動検出情報を取得し、前記取得した振動検出情報に基づいて、再生装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを判別させ、
    　第１用途であると判別された場合に、第２用途での再生に適した第２モードとは利用する機能が異なる第１モードで、媒体に記録されたコンテンツ情報を読み取るための処理を実行させてコンテンツ情報の読み取りを実行させ、読み取ったコンテンツ情報を処理させることをコンピュータに実行させる
    　ことを特徴とするプログラム。     In a program to be executed on a playback device,
    Vibration detection information is acquired, and based on the acquired vibration detection information, it is determined whether the application of the playback device is a first application that involves a certain level of vibration or a second application that does not involve a certain level of vibration. Let
    When it is determined to be the first application, a process for reading the content information recorded on the medium is executed in the first mode, which is different from the second mode suitable for reproduction in the second application. A program for causing a computer to execute reading of content information and processing the read content information.
  14. 　振動検出情報を取得し、前記取得した振動検出情報に基づいて、再生装置の用途が一定以上の振動を伴う第１用途と一定以上の振動を伴わない第２用途とのいずれであるかを制御部に判別させ、
    　第１用途であると判別された場合に、再生装置に第２用途での再生に適した第２モードとは利用する機能が異なる第１モードで、媒体に記録されたコンテンツ情報を読み取るための処理を実行させてコンテンツ情報の読み取りを実行させ、読み取ったコンテンツ情報を処理させることを実行させるプログラムを記録する情報記録媒体。     Acquire vibration detection information and control whether the application of the playback device is a first application involving a certain level of vibration or a second application not involving a certain level of vibration based on the acquired vibration detection information. Discriminate
    When the content information recorded on the medium is read in the first mode, which is different from the second mode suitable for reproduction in the second usage in the reproduction device when it is determined as the first usage. An information recording medium for recording a program for executing processing to read content information and executing the read content information.
PCT/JP2012/051223 2011-01-21 2012-01-20 Reproduction device, recording device, method of reproduction, program, and information recording medium WO2012099245A1 (en)

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JP2002094902A (en) * 2000-09-12 2002-03-29 Canon Inc Cameram provided with printer, its print control method, and storage medium
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