JP2005347895A - Information recording device and information recording/reproducing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To significantly reduce management work of a user involved in the recording of video information in an SD card. <P>SOLUTION: The information recording device is composed so as to have: a first recording means for recording information in a first insertable/extractable recording medium; a recording capacity determining means which acquires a recordable capacity of the first recording medium, and determines the capacity to the first recording medium whose capacity becomes equal to or smaller than the acquired recordable capacity; a second recording means for recording information in a second recording medium; and a recording control means which records the first half part up to the capacity determined by the recording capacity determining means in the first recording medium through the first recording means regarding the information to be inputted or to be generated, and also records the remaining last half part of the capacity in the second recording medium through the second recording means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information recording apparatus and information recording / reproducing system for recording / reproducing video information on a recording medium, for example.

  As an information recording apparatus, there is a Digi (trademark) series. Digi has an SD / MMC card slot and a PCMCIA card slot, and has a function of storing MPEG4 image data using these as storage devices.

  In Digital, MPEG4 data has a function of storing on the HDD simultaneously with MPEG2 data during recording, and a function of creating MPEG4 data from recorded MPEG2 data.

  Recording to a removable medium such as an SD card is performed by a user operation. Since the recorded MPEG4 data is often larger than the size of the removable media, the size of the removable media is set in advance in Digi, and when recording in MPEG4 format, it is stored to the set size. A method of dividing and recording into possible MPEG4 files is adopted.

  However, since existing products recorded video data in advance by dividing it into preset sizes, the preset size was reduced because the capacity of the inserted SD card was small or other data was stored. When there is not enough free space, work such as deleting data in the SD card is required.

Patent Document 1 below discloses a technique for recording two types of information having different bit rates. Patent Document 2 below automatically captures TV program information to be recorded from the Internet into a portable information terminal, transfers the information to a memory card, and automatically inserts the memory card into the recorder. A technique is disclosed in which a TV program is automatically recorded on the memory card after timer reservation is completed.
JP 2003-037817 A JP 2002-064782 A

  In this way, since existing products recorded video data by dividing it into preset sizes in advance, the preset SD card may have a smaller capacity or different data stored in it. When there is not enough free space for the size, the work such as deleting the data in the SD card is necessary.

  In Patent Documents 1 and 2, when the capacity of a file such as a program to be recorded exceeds the free capacity of a removable medium such as an SD card, the size is divided on the user side in advance, or There is no disclosure or suggestion of what exceeds the existing technology of recording on the HDD on the device side. In this case, the user is forced to perform various operations such as measurement, division, deletion, and re-recording, which is inconvenient.

  In the future, as the application field of SD cards expands, the above inconvenience increases the burden on the user side, and in particular, data generated by various devices is often stored in one SD card, and existing presets are increased. It is expected that it will be inconvenient for dividing the video data with the determined size.

  The present invention has been made to solve the above-described problems of the prior art. An information recording apparatus and information capable of detecting the free capacity of a removable medium, changing the size of MPEG4 data, and dividing and storing the data. An object of the present invention is to provide a recording / reproducing system.

  The present invention further provides an information recording apparatus and an information recording / reproducing system that dramatically improve user convenience by detecting the free space of a removable medium and applying and dividing and recording on the apparatus side. With the goal.

  In order to solve such a problem, an information recording apparatus according to the present invention acquires a first recording means for recording information on a first removable recording medium, and a recordable capacity of the first recording medium. A recording capacity determining means for determining a capacity for the first recording medium having a capacity equal to or smaller than the acquired recordable capacity, a second recording means for recording information on the second recording medium, and an input Alternatively, for the generated information, the first half up to the capacity determined by the recording capacity determining means is recorded on the first recording medium through the first recording means, and the remaining second half is recorded on the second recording means through the second recording means. Recording control means for recording on a recording medium.

  The “insertable / removable first recording medium” refers to a recording medium that can be inserted into and removed from the insertion slot stored in the information recording apparatus according to the present invention, and includes, for example, a memory card, a DVD, a disk, and the like. General, preferably a flash memory such as a memory card. The “second recording medium” refers to a general recording medium including a hard disk.

  “First recording means” means, for example, a “first recording device” having a function of controlling and executing recording on the first recording medium as described above, or an electronic circuit, or this function as information. You may implement | achieve as a recording medium, such as ROM which stored the said instruction word as a series of instruction words for making a processing apparatus implement | achieve. Further, it may be realized by configuring the CPU (Central Processing Unit) to function as the “first recording unit”.

  “Second recording means” means, for example, “second recording device” having a function of controlling and executing recording on the second recording medium as described above, an electronic circuit, an instruction word, and a recording medium. Alternatively, it is realized as a “second recording unit” in a CPU (central processing unit).

  The “recording capacity determining means” acquires, for example, the recordable capacity of the first recording medium as an SD card, and determines the capacity for the first recording medium to be equal to or smaller than the acquired recordable capacity. As a “recording capacity determination device” having a function, as an electronic circuit, as a series of instruction words for causing the information processing apparatus to realize these functions, or as a recording medium such as a ROM storing the instruction words It may be realized. Further, it may be realized by configuring the CPU (Central Processing Unit) to function as a “recording capacity determination unit”.

  The “recording control unit” records, for example, the first half of the input or generated information up to the capacity determined by the recording capacity determination unit on a first recording medium such as an SD card through the first recording unit. Then, a “recording control device”, an electronic circuit, a command word, a recording medium, or a CPU (central processing unit) having a function of recording the remaining second half portion on a second recording medium such as a hard disk through the second recording means This is realized as a “recording control unit”.

  According to the present invention configured as described above, the apparatus side has a function of appropriately detecting the size of the inserted or inserted removable medium and dividing and recording the size into a recordable size. For the information to be recorded, the first half up to the capacity determined by the recording capacity determining means is recorded on the first recording medium (for example, an SD card) through the first recording unit, and the remaining second half is recorded through the second recording unit. The recording control means can control to record to the second recording medium (for example, HDD), and the user is not forced to perform operations such as measurement and division, and convenience is improved.

  At this time, the information recording apparatus according to the present invention further includes an encoding function for encoding an input signal from a TV tuner or the like based on an encoding method such as MPEG, and is recorded on the first and second recording media. You may comprise so that information may be the video information produced | generated by the said encoding function. Alternatively, the information recorded on the first and second recording media may be configured to be video information encoded by an encoding method such as MPEG received via a network or the like. With this configuration, the information to be handled is compressed, and the storability is further improved.

  Alternatively, the information recording apparatus according to the present invention further includes, in addition to the above configuration, code information conversion means for converting encoded information including MPEG into different encoding methods or different video information with a reduced bit rate or video resolution. The information recorded in the first and second recording media is obtained by converting the first video code information received via the network or the like into different second video code information by the code information conversion means. You may comprise so that it may be converted. With such a configuration, information received via a network or the like can be converted into different code information, and convenience is further improved.

  Alternatively, in the information recording apparatus according to the present invention configured as described above, when the insertion / removal detection means for detecting the insertion / removal state of the first recording medium and the first recording medium is not inserted at the time of recording information An alternative recording means for temporarily recording information on the second recording medium, and information temporarily recorded by the alternative recording means for the first half of information having the capacity determined by the recording capacity determining means; An information dividing means for dividing the information into the remaining second half information is further provided, and the recording control means detects the insertion of the first recording medium by the insertion / extraction detecting means, and then detects the first half divided by the information dividing means. The information may be recorded on the first recording medium, and only the remaining second half information may be recorded on the second recording medium.

  Here, “insertion / removal detection means” means, for example, an “insertion / removal detection device” having a function of detecting the insertion / removal state of the first recording medium (for example, SD card), electronic circuit, command word, recording medium, or CPU (central It is realized as an “insertion / extraction detection unit” in the processing device).

  The “alternative recording means” is a function for temporarily recording information on a second recording medium (for example, HDD), for example, when a first recording medium (for example, an SD card) is not inserted when recording information. It is realized as an “alternative recording device”, an electronic circuit, a command word, a recording medium, or an “alternative recording unit” in a CPU (central processing unit).

  The “information dividing unit”, for example, divides the information temporarily recorded by the above alternative recording unit into the first half information and the remaining second half information having the capacity determined by the recording capacity determining unit. It is realized as an “information dividing device” having a function, an electronic circuit, a command word, a recording medium, or an “information dividing unit” in a CPU (central processing unit).

  According to the present invention configured as described above, in addition to the function of appropriately detecting the size of the inserted or inserted removable medium and dividing and recording the size into a recordable size, a large file that has already been recorded is recorded. If there is, the device has a function to store the part that can be divided and recorded in the removable media, so it is possible to adaptively store video data suitable for the recordable capacity of the recording medium, The user can greatly reduce the management work involved in recording video information on the SD card.

  Further, in the information recording apparatus according to the present invention configured as described above, when the information recorded by the alternative recording means is video information encoded based on an encoding method such as MPEG, the above information The dividing unit is configured to include an information adjusting unit that adjusts a position where the information is divided and supplements necessary information including the header so that the information can be independently decoded based on the encoding method. May be.

  “Information adjustment means” means, for example, an “information adjustment device” having a function of adjusting division positions for information recorded as MPEG video information and supplementing necessary information such as a header, an electronic circuit, a command It is realized as a word, a recording medium, or an “information adjusting unit” in a CPU (Central Processing Unit).

  According to the present invention configured as described above, since necessary information including a header is supplemented by the information adjustment means in each of the divided information, the information based on the coding method is divided and reproduced by the present invention. In addition, the divided information can be reproduced without any trouble, and the convenience is further improved.

  Furthermore, the information recording / reproducing system according to the present invention is a portable video reproducing apparatus in which the first recording medium is inserted and the internal video information can be viewed, and the video recorded on the first recording medium. When viewing information, a portable video reproduction device having viewing record information recording means for recording the viewing record information in predetermined management information data in the first recording medium, and the first recording medium are inserted. In this case, the information recording apparatus according to any one of the above descriptions is provided, which includes deletion means for automatically deleting video information data that has been viewed until the end based on the viewing record information.

  “Viewing result information recording means” means, for example, when a first recording medium as an SD card is inserted into a portable video reproduction device and video information recorded on the SD card is detected by a user. “Viewing record information recording device”, electronic circuit, command word, recording medium, or portable type having the function of recording the viewing record information (viewed) in predetermined management information data (table) in the SD card This is realized as a “viewing record information recording unit” in a CPU (Central Processing Unit) related to a video playback device.

  “Deleting means” refers to video information that is determined to have been viewed at the end or in the vicinity thereof based on the viewing record information when the first recording medium as the SD card is inserted into the information recording device. It is realized as a “deleting device” having a function of automatically deleting data, an electronic circuit, a command word, a recording medium, or a “deleting unit” in a CPU (central processing unit) related to an information recording device.

  According to the present invention configured as described above, by installing a function for deleting viewed video data on the device side, it is possible to realize labor saving of data management of the recording medium, and the user SD Management work associated with recording video information on the card can be significantly reduced.

  According to the present invention, it has a function of appropriately detecting the size of an inserted or inserted removable medium and dividing and recording into a recordable size. Also, when there is a large file that has already been recorded, it has a function of storing up to a portion that can be divided and recorded in a removable medium. As a result, the user can greatly reduce the management work associated with recording video information on the SD card.

  Furthermore, according to the present invention, it is possible to adaptively store video data suitable for the recordable capacity of the recording medium by installing means for detecting the size of the recording medium and means for dividing the video data. .

  Further, according to the present invention, it is possible to realize labor saving of data management of a recording medium by installing a function of deleting viewed video data.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an example of the device configuration of an information recording apparatus 100 according to an embodiment of the present invention. The information recording apparatus 100 of the present invention includes at least the following elements.
As shown in the figure, a main central processing unit (hereinafter referred to as “main CPU”) 101 controls various devices of an apparatus in accordance with an execution program developed in a memory device 102. The main CPU 101 controls the SD card control device 109 to check in advance the recordable capacity in the SD card 110 and store it in a predetermined management table on the memory device 102.

  The memory device 102 develops a program stored in the HDD device 108 and uses it as a temporary storage destination of digital data for encoding video information. The bus bridge 103 includes a PCI bus control device 106 and manages data and control signal relay processing among the main CPU 101, the memory device 102, and the display control device 104. The display control device 104 controls the display of the decoded video information and the image / character information for the user interface to the user.

  The NTSC decoder 105 converts the output of the display control device into a video signal for home television. The PCI bus 106 is a signal line that is a path when data is exchanged with a memory or an external device.

  The IDE controller 107 controls the HDD device 108 to control data writing and reading. The HDD device 108 stores a control program to be executed by the main CPU 101 and MPEG4-encoded video data. The SD card control device 109 controls the SD card 110 to control data writing and reading. The SD card 110 stores MPEG4-encoded video data.

  The PCM decoder 111 converts the PCM data into an audio signal and converts it into an audio signal for home television. The MPEG4 encoder 112 code-compresses each of the television video signal and the audio signal input from the television tuner device 113 to generate MPEG4 format video data. The TV tuner device 113 receives TV radio waves from the TV antenna and inputs them to the MPEG4 encoder 112. A network interface device (NIC) 114 controls communication signals with the Internet via a home LAN.

  The sub CPU 115 controls the remote control receiving device 116, the switch control device 117, and the panel LED control device 118. The remote control signal receiving device 116 receives an infrared signal from the remote control. The switch control device 117 controls a signal indicating a pressed state of the button on the device front panel. The panel LED control device 118 controls display on the control panel on the front surface of the device.

FIG. 2 is a block diagram showing a more detailed configuration of the main CPU 101 configured as described above. As shown in FIG. 5A, the main CPU 101 acquires the recordable capacity of the SD card 110, and determines the capacity for the SD card 110 so as to be equal to or smaller than the recordable capacity thus acquired. The SD card controller 109 is controlled to record the recording capacity determination unit 1011 and the first half up to the capacity determined by the recording capacity determination unit 1011 on the SD card 110, and the remaining second half is recorded on the HDD device 108. As described above, a recording control unit 1012 for controlling the IDE controller 107 may be provided.
Further, as shown in FIG. 5B, in addition to the above, the main CPU 101 includes an insertion / removal detection unit 1013 for detecting the insertion / removal state of the SD card 110 to / from the information recording apparatus 100, and the SD card 110 is the information recording apparatus during information recording The alternative recording unit 1014 that temporarily records information in the HDD device 108 when not inserted into the HDD 100, and the information that is temporarily recorded in the HDD device 108 by the alternative recording unit 1014 An information dividing unit 1015 that divides the information in the first half and the remaining information in the second half that have the capacity determined by 1011 may be provided. Further, the information dividing unit 1015 may be configured to include an information adjusting unit 10151 having a function of adjusting a division position for information recorded as MPEG video information and supplementing necessary information such as a header. . Here, the embodiment has been described in which the recording procedure determination unit 1011, the recording control unit 1012, the insertion / extraction detection unit 1013, the alternative recording unit 1014, and the information division unit 1015 are realized as functions in the main CPU 101. Each function may be realized not as the main CPU 101 but as a function outside the main CPU 101, or as an independent device, electronic circuit, instruction word, recording medium, or the like.

  Next, the operation of the information recording apparatus according to the embodiment of the present invention configured as described above will be described.

FIG. 3 is a flowchart showing operations related to video recording of the information recording apparatus according to the present invention.
As shown in the figure, first, the main CPU 101 controls the SD card control device 109 to check the recordable capacity in the SD card 110 in advance and store it in a predetermined management table on the memory device 102 (step 301). ).

  The sub CPU 115 receives the recording start button stamp signal from the remote control signal receiving device 116, and generates an interrupt in which a control event has occurred to the main CPU 101 (step 302).

  The main CPU 101 decodes the recording start instruction from the generated interrupt event, controls the TV tuner 113 and the MPEG4 encoder 112, and starts the TV signal recording process (step 303).

  The TV signal input from the TV tuner 115 is converted into MPEG4 format video data and audio data by the MPEG4 encoder 114 and stored in predetermined buffer areas of the memory device 102 (step 304).

  MPEG4 format video data and audio data sequentially stored in the memory device 102 are synthesized in a predetermined format suitable for reproduction, converted into a recording MPEG4 file format to which header information and the like are added, and stored on the SD card 110. Additional recording is sequentially performed in a predetermined area (step 305).

  The main CPU 101 controls the panel LED control device 118 via the sub CPU 115 to display character information indicating that recording is being performed on the SD card 110 to the user (step 306).

  The main CPU 101 monitors the size of data to be sequentially recorded on the SD card 110 according to the control program, and stops recording on the SD card 110 when reaching a predetermined size not exceeding the recordable capacity (step 307). Necessary post-processing is performed on the MPEG4 file recorded on the SD card 110. At the same time, the video data from the MPEG4 encoder 112 thereafter recorded on the SD card 110 creates a new MPEG4 file for recording in the HDD device 108 and is sequentially added (step 308).

  Alternatively, in the operations of steps 307 to 308, the recording capacity determination unit 1011 acquires the recordable capacity of the SD card 110, and determines a predetermined size not exceeding the recordable capacity as the capacity for the SD card 110 (step 307 ′ : The recording control unit 1012 controls the SD card control device 109 to record the first half up to the capacity determined by the recording capacity determination unit 1011 on the SD card 110, and the remaining second half is HDD The IDE controller 107 may be controlled to record in the device 108 (step 308 ′: not shown).

  The main CPU 101 updates the recordable capacity in the SD card 110 in the predetermined management table on the memory device 102 to a state where there is no recordable free capacity (step 309).

  The main CPU 101 controls the panel LED control device 118 via the sub CPU 115 to display character information indicating that recording is being performed on the HDD device 108 to the user (step 310).

  The sub CPU 115 receives the recording end button pressing signal from the remote control signal receiving device 116, and generates an interrupt in which a control event has occurred to the main CPU 101 (step 311).

  The main CPU 101 decodes the recording end instruction from the generated interrupt event, controls the TV tuner 113 and the MPEG4 encoder 112, and ends the TV signal recording process. Further, the pre-combination MPEG4 format video data and audio data stored in the memory device 102 are processed, necessary post-processing is performed on the MPEG4 file recorded in the HDD device 108, and the recording process is terminated ( Step 312).

  Next, a recording reservation operation according to an embodiment of the present invention will be described.

FIG. 4 is a flowchart showing the operation related to the recording reservation of the information recording apparatus according to the present invention.
As shown in the figure, the recording reservation is already set at the starting point of the flowchart (step 401). The user uses the screen output output to the television monitor via the NTSC decoder 105 and the remote control to perform the recording reservation process. FIG. 5 shows an example of recording reservation management information inside the device set to be reserved for recording at this time. In the example shown in FIG. 5, the user reserves recording of a program of 1ch for 2 hours from 12:00 on January 1, 2004. The video format is to record on the SD card 110 as video information in the MPEG4 format of 512 Kbps including video and audio.

  Next, a condition judgment process for confirming whether or not the recording start time has come is performed (step 402).

  Next, after the recording start time is reached, a condition determination process is performed to determine whether or not the SD card 110 is inserted in the device (step 403).

  If the SD card 110 is inserted in the device in the condition determination process in step 403, the free space of the SD card 110 that can record MPEG4 data is confirmed (step 404). FIG. 6 is a diagram illustrating an example of a result of obtaining information on the SD card 110 at this time. According to FIG. 6, the inserted SD card 110 has a capacity of 256 MB, of which 156 MB can be used for storing MPEG4 data as a free capacity.

  Next, a process of confirming a free capacity capable of recording MPEG4 data in the HDD device 108 mounted on the device is performed (step 405). FIG. 7 is a diagram illustrating an example of a result obtained by acquiring and updating information of the HDD device 108. According to FIG. 7, the HDD device 108 has a capacity of 160 GB, of which 60 GB is currently available for free storage of MPEG4 data.

  Subsequently, the program reserved for recording is converted into MPEG4 format data (step 406).

  A condition determination process is performed to determine whether or not the total file size of the MPEG4 data to be recorded from now is smaller than a predetermined recordable size on the SD card 110 (step 407). ).

  If it is determined in step 407 that the data can be recorded on the SD card 110, new MPEG4 data is created and additionally recorded in the MPEG4 file on the SD card 110 (step 408).

  Next, a condition determination process for confirming whether or not the recording end time has come is performed (step 409).

  Subsequently, when it is determined in step 407 that no more data can be recorded on the SD card 110, the total file size of the MPEG4 data recorded on the HDD device 108 and the MPEG4 data to be recorded is determined. It is determined whether or not the size is smaller than a predetermined recordable size on the HDD device 108 (step 410).

  Next, new MPEG4 data is created and added to the MPEG4 file on the HDD device 108 (step 411).

  In Steps 407 to 411, for example, specifically, a case where video recording for two hours reserved for recording is performed will be described. FIG. 8 is a conceptual diagram conceptually showing an example of the data division state when the MPEG4 file is divided and recorded based on the above flow when not all of the recorded data enters the SD card 110. As a result of the recording, the recorded MPEG4 data is divided as shown in FIG. 8, for example, and stored in the SD card 110 and the HDD device 108, respectively. In the example of FIG. 8, about 150 MB of the first half of the entire video data of 2 hours is recorded on the SD card 110, and the remaining about 300 MB of data is recorded on the HDD device 108.

  Alternatively, in steps 403 to 411, the insertion / removal detection unit 1013 detects the insertion / removal state of the SD card 110 with respect to the information recording apparatus 100 (step 403 ′: not shown), and the recording capacity determination unit 1011 detects the SD card 110. A recordable capacity is acquired, and a predetermined size not exceeding the recordable capacity is determined as a capacity for the SD card 110 (step 404 ′: not shown), and the SD card 110 is inserted into the information recording apparatus 100 when information is recorded. If not, the alternative recording unit 1014 temporarily records information on the HDD device 108 (step 411 ′: not shown), and the information dividing unit 1015 determines the recording capacity of the information recorded on the HDD device 108 in this way. The recording control unit is divided into information of the first half and the remaining information of the second half (not shown) having the capacity determined by the unit 1011. The IDE controller controls the SD card control device 109 to record the first half up to the capacity determined by the recording capacity determination unit 1011 on the SD card 110 and records the remaining second half on the HDD device 108. 107 may be controlled (steps 407 ′ to 411 ′: not shown). In the information dividing unit 1015, the information adjusting unit 10151 adjusts the dividing position for information recorded as MPEG video information, and supplements necessary information such as a header (not shown). Good.

  Finally, the state where the reserved recording is completed is set as the end point of the flowchart (step 412). FIG. 9 is a diagram showing an example of recording reservation management information inside the device after the recording is completed. According to FIG. 9A, there are 100. The first half of the recorded video is stored with the file name “movie”, and 100_tmp. The second half of the recorded video is stored with the file name “movie”. 9B is generated from the management information data of FIG. 9A and stored in the SD card 110. It is a figure which shows an example of the management information by the side of the SD card 110 with respect to movie. According to FIG. movie is a recorded video for 1800 seconds, and the remaining part is \\ HDD \ TMP \ 100_tmp. It is indicated that the file “movie” is stored on the HDD device 108.

  Next, an operation of automatically recording recorded data on the SD card after the SD card according to the embodiment of the present invention is inserted will be described with reference to a flowchart and a conceptual diagram.

  FIG. 10 is a flowchart showing an operation of automatically recording recorded data on the SD card 110 after the SD card 110 is inserted into the information recording apparatus according to the present invention. FIG. 11 is a conceptual diagram showing an example of MPEG4 data moved to the SD card 110 when the SD card 110 is inserted. 11 shows the state of the starting point (step 601) of the flowchart of FIG.

  First, in the flowchart of FIG. 10, after insertion of the SD card 110 is detected and free space information is extracted (steps 602 and 603), recording of the MPEG4 file on the HDD device 108 to the SD card 110 is scheduled. The extracted file is extracted (step 604). In FIG. 11, the recorded video images 2, 3, 5, 6, and 8 in the middle stage correspond to the extracted MPEG4 file.

  Next, any one of the MPEG4 files is selected, and it is determined whether or not recording on the SD card 110 is possible (step 605). In the example of FIG. 11, for example, the oldest ones are selected in order of recording time.

  After the above procedure is performed on the recorded videos 2 and 3 in FIG. 11 (steps 605 and 606), when the recorded video 5 is to be recorded on the SD card 110, the recording is performed in the condition determination process in step 605. Consider a case where it is determined that the file size of the video 5 is too large to be recorded on the SD card 110 (No in step 605).

  In this case, the recorded video 5 is divided into the first half of the recordable size: the recorded image 5A and the remaining second half: the recorded image 5B so as to correspond to the free space of the SD card 110 at the present time (step 607). The recorded image 5A is moved to the SD card 110 (step 608).

  As a result of these processes, when the SD card 110 is inserted, video data up to the full capacity of the SD card 110 is moved from the HDD device 108 to the SD card 110.

  Next, different embodiments of the present invention will be described with reference to the drawings.

  FIG. 12 is a block diagram showing an example of the device configuration of an information recording / reproducing system according to another embodiment of the present invention. As shown in the figure, the information recording / reproducing system 10 of the present invention comprises at least an information recording device 100 and a portable video reproducing device 300.

  The device configuration of the information recording apparatus 100 is basically the same as that shown in FIG. Therefore, the same part is not shown, and the description will be replaced with that shown in FIG. The main CPU 101c includes at least a recording control unit 1012, an information reading unit 1016, and a deletion unit 1017. The function of the recording control unit 1012 is changed with the above description.

  When the SD card 110 is inserted into the information recording apparatus 100, the information reading unit 1016 has a function of reading the viewing performance information and determining whether or not the video information has been viewed to the end or the vicinity thereof. The deletion unit 1017 has a function of deleting the video information data from the SD card 110 when the information reading unit 1016 determines that the video information has been viewed to the last or near the SD card 110.

  The portable video playback device 300 includes at least a main control unit 3001, a recording unit 3003, a display unit 3005, a viewing record information recording unit 3007, and an SD card insertion unit 3009.

  The main control unit 3001 controls various devices of the device according to the execution program developed in the recording unit 3003. The recording unit 3003 stores a program for executing operations of various devices, and has a buffer used as a temporary storage destination of digital data for encoding video information. The display unit 3005 has a function of displaying the decoded video information and displaying or controlling image / character information for a user interface to the user.

  The viewing record information recording unit 3007 displays the viewing record information (that is, viewed) when the SD card 110 is inserted into the portable video playback device 300 and the video information recorded on the SD card 110 is viewed by the user. It has a function of recording in predetermined management information data (table) in the SD card. The SD card insertion unit 3009 detects whether the SD card 110 is inserted into the portable video playback device 300 in addition to the insertion slot of the SD card 110.

  FIG. 13 shows an example of viewing result information stored on the memory device 102.

  The upper row is viewing history information related to video data of recording number 100 recorded on the memory device 102, and the last viewed position is 7200 seconds.

  The middle row is viewing history information relating to the video data of the recording number 101 recorded on the memory device 102, and the last viewing position is 3560 seconds.

  The lower part is viewing history information related to the video data of the recording number 102 recorded on the memory device 102, and the last viewed position is 1200 seconds.

  Next, the operation of the information recording / reproducing system according to an embodiment of the present invention configured as described above will be described.

FIG. 14 is a flowchart showing the operation of the information recording / reproducing system according to the present invention.
As shown in the figure, the start point is that the SD card 110 is not yet inserted into the information recording apparatus 100 (step 701).

  Next, when the SD card control device 109 of the information recording device 100 detects that the SD card 110 has been inserted (step 702), the information reading unit 1016 of the main CPU 101c transmits a signal to the main CPU 101c. The viewing result information in the management information data (table) in the SD card 110 is read (step 703).

  The main CPU 101c determines whether or not the last viewing position of the recorded video is the end of the video among the read viewing information (step 705). If the last viewing position of the recorded video is the end of the video, the recorded video is regarded as being viewed, and the deletion unit 1017 of the main CPU 101c deletes the video information and the corresponding viewing record information (step 706). This process is performed for all viewing history information, and when there is no more data to be processed, the series of processes is terminated (step 710).

  In step 705, if the last viewing position of the recorded video is not the end of the video (No in step 705), the last viewing position of the recorded video is near the end of the video (that is, the main part of the recorded video has been viewed). However, the main CPU 101c determines whether or not the last viewing position of the recorded video is within 3 minutes from the end of the video (step 707).

  At this time, if the last viewing position of the recorded video is within 3 minutes from the end of the video, for example, the main part of the recorded video has already been viewed, but the accompanying CM is not necessary and is not viewed. Since the situation is estimated, the sub CPU 115 controls the panel LED control device 118 to display on the screen (not shown) a message for allowing the user to select whether or not to delete (step 708). When the switch control device 117 transmits a signal indicating that the delete button on the device front panel (not shown) has been pressed (Yes in Step 709), the process proceeds to Step 706.

  On the other hand, if the last viewing position of the recorded video is not within 3 minutes from the end of the video (No in step 707), it is estimated that the main part of the recorded video has not been viewed, and the process returns to step 704.

  By performing the processing from step 701 to step 710 described above, the system is equipped with a function for deleting viewed video data on the device side, and recording video information on the user's SD card. The associated management work can be greatly reduced.

  As described above, according to the present invention, the free space of the memory card to be recorded is detected, recording is performed at the time of recording up to the amount that can be recorded on the memory card, and the remaining portion is stored in a large capacity recording device such as an HDD. Since the device has a recording function, video data suitable for the recordable capacity of the recording medium can be stored adaptively.

  According to the present invention, when video data that has already been recorded is recorded on a memory card, the free space of the memory card to be recorded is detected, and the first half of the data that can be recorded on the memory card and the remaining second half. The data is divided into partial data, the first half of the data is recorded on the memory card, and the device is controlled so that only the remaining data is stored in the HDD. If there is a large file that has already been recorded, the data is divided. Thus, the function of storing up to the recordable part in the removable medium is alive, and the user can greatly reduce the management work involved in recording the video information on the removable medium including the SD card.

  Further, according to the present invention, the viewing data is recorded on the memory card together with the video data recorded on the memory card, and the viewing recording is performed when the memory card is inserted into the video recording device. Therefore, if the last viewed position is at or near the end of the video data, the device has a function to delete the video data as if it has been viewed. Can save labor.

  This has the effect of improving the convenience of portable information playback devices for removable media that will be used more and more, and making it possible to use video information in many fields including industries and hobbies. Bring. As a result, it can be hoped that the use of information terminals, particularly video information terminals, in various industries will be further activated and contribute to further industrial development.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

  For example, in the above-described embodiment, the embodiment of the present invention as an information recording apparatus has been described. However, the present invention is not limited to the form as the information recording apparatus, and an information recording method, an information recording system, Or as software and recording media (ROM etc.) equipped with these functions, or as information processing apparatus, information processing method, information processing system, or software and recording media (ROM etc.) equipped with these functions, Each can be realized within the scope of the technical idea of the present invention.

  In the above-described embodiment, the management information of the recorded video information has been described using the management table. However, the present invention is not limited to such a table.

  Further, the present invention is not limited to the above-described apparatus, method, software, and system, but as a combined machine or a combined apparatus incorporating the same, or a part thereof, or a combination of these and other functions. It is also possible to realize it.

  Furthermore, the present invention permits various modifications, additions, substitutions, expansions, reductions, etc. within the scope of the same and equivalent technical idea. Further, even when an apparatus, a method, software, and a system that are produced using the invention of the present application are listed and commercialized as a secondary product, the value of the invention of the present application is not reduced at all.

  According to the present invention, video data suitable for the recordable capacity of the recording medium can be adaptively stored by installing the means for detecting the size of the recording medium and the means for dividing the video data.

  Further, according to the present invention, it is possible to realize labor saving of data management of a recording medium by installing a function of deleting viewed video data.

It is a block diagram which shows the example of an apparatus structure of the information recording device which concerns on one Embodiment of this invention. It is a block diagram which shows the further detailed structure of main CPU101 of the information recording device which concerns on one Embodiment of this invention. It is a flowchart showing the operation | movement regarding the video recording of the information recording device which concerns on this invention. It is a flowchart showing the operation | movement regarding the video recording reservation of the information recording device which concerns on this invention. It is a conceptual diagram which shows an example of the recording reservation management information in the apparatus of the setting of the recording reservation which concerns on this invention. It is a figure which shows an example of the result of having acquired the information of SD card. It is a figure which shows an example of the result of having acquired and updated the information of HDD apparatus. It is a conceptual diagram which shows notionally the example of the division | segmentation state of data when an MPEG4 file is divided-recorded when all the recording data cannot enter into an SD card. It is a figure which shows an example of the video recording reservation management information inside the apparatus after completion | finish of video recording. It is a flowchart showing the operation | movement which records recording data on an SD card automatically after an SD card is inserted in the information recording device which concerns on this invention. It is a conceptual diagram which shows the example of the MPEG4 data moved to SD card at the time of SD card insertion. It is a block diagram which shows the example of an apparatus structure of the information recording / reproducing system which concerns on other one Embodiment of this invention. It is a figure which shows an example of the viewing-and-listening performance information stored on a memory device. It is a flowchart showing operation | movement of the information recording / reproducing system based on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Information recording / reproducing system, 100 ... Information recording device, 101, 101a, 101b, 101c ... Main CPU, 102 ... Memory device, 103 ... Bus bridge, 104 ... Display control device, 105 ... NTSC decoder, 106 ... PCI bus, DESCRIPTION OF SYMBOLS 107 ... IDE controller, 108 ... HDD apparatus, 109 ... SD card control apparatus, 110 ... SD card, 111 ... PCM decoder, 112 ... MPEG4 encoder, 113 ... Television tuner apparatus, 114 ... Network interface apparatus (NIC), 115 ... Deputy CPU 116, remote control signal receiving device, 117, switch control device, 118, panel LED control device, 300, portable video playback device, 1011 ... recording capacity determination unit, 1012 ... recording control unit, 1013 ... insertion / extraction detection unit, 1014 ... alternative records DESCRIPTION OF SYMBOLS 1015 ... Information division part, 1016 ... Information reading part, 1017 ... Deletion part, 3001 ... Main control part, 3003 ... Recording part, 3005 ... Display part, 3007 ... Viewing performance information recording part, 3009 ... SD card insertion part, 10151 ... Information adjustment section

Claims (7)

First recording means for recording information on a first removable recording medium;
Recording capacity determining means for acquiring a recordable capacity of the first recording medium and determining a capacity for the first recording medium that is equal to or smaller than the acquired recordable capacity;
A second recording means for recording information on a second recording medium;
For the information to be input or generated, the first half up to the capacity determined by the recording capacity determining means is recorded on the first recording medium through the first recording means, and the remaining second half is recorded in the second through the second recording means. An information recording apparatus comprising: a recording control means for recording on the recording medium. The information recording apparatus according to claim 1, further comprising encoding means for encoding an input signal from a device including a TV tuner based on an encoding method including MPEG.
The information recording apparatus characterized in that the information recorded on the first and second recording media is video information generated by the encoding means.   2. The information recorded in the first and second recording media is video information encoded by an encoding method such as MPEG received via a network or the like. Information recording device. Code information conversion means for converting encoded information including MPEG into different encoding methods or different video information with reduced bit rate or video resolution,
In the information recorded on the first and second recording media, the first video code information received via the network or the like is converted into different second video code information by the code information conversion means. The information recording apparatus according to claim 1, wherein The information recording apparatus according to claim 1,
An insertion / extraction detecting means for detecting an insertion / extraction state of the first recording medium;
An alternative recording means for temporarily recording information on the second recording medium when the first recording medium is not inserted at the time of recording the information;
Further comprising information dividing means for dividing the information temporarily recorded by the alternative recording means into information of the first half and the remaining information of the second half of the capacity determined by the recording capacity determining means;
The recording control means, after detecting the insertion of the first recording medium by the insertion / extraction detecting means, records the information of the first half divided by the information dividing means on the first recording medium, and the second recording medium An information recording apparatus, wherein only the remaining second half information is recorded on a recording medium. The information recording apparatus according to claim 5, wherein
When the information recorded by the alternative recording unit is video information encoded based on an encoding method such as MPEG, the information dividing unit can decode the information independently based on the encoding method. An information recording apparatus comprising an information adjusting unit that adjusts a position where information is divided and supplements necessary information including a header. In a portable video playback device capable of inserting the first recording medium and viewing the internal video information, when viewing the video information recorded on the first recording medium, the viewing result information is displayed. A portable video reproduction device having viewing record information recording means for recording in predetermined management information data in the first recording medium;
7. The information processing apparatus according to claim 2, further comprising: a deletion unit that automatically deletes video information data that has been viewed until the end when the first recording medium is inserted, based on the viewing record information. An information recording / reproducing system comprising: the information recording apparatus according to any one of the above items.

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