JP2009026401A - Device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for vehicle which can reproduce image and music of the same recording medium 101 from a plurality of display device for vehicles 107 simultaneously, and can continue to perform reproduction that the other display devices for vehicle is not affected even if operation such as change of a reproduction position is performed, in a network in the vehicle in which a plurality of display devices for vehicle are connected. <P>SOLUTION: The device 102 for vehicle is provided with a temporary holding means holding temporarily content data of a recording medium, and a display device for vehicle managing means 105 which discriminates the display device for vehicle during reproduction of contents read out from the recording medium and which control individually content data sent to respective display devices for vehicle, the display device for vehicle managing means holds temporarily content data of the recording medium in the temporary holding means, and transmits held data to a plurality of display devices 107 for vehicle. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an in-vehicle device, and more particularly to content distribution control to a plurality of video display devices in an in-vehicle network.

  Due to recent improvements in multimedia technology, car navigation has become more versatile than just displaying maps and routes. For example, it has become possible to obtain information on parking lots, tourist facilities, restaurants, etc. using an internet connection by wireless communication such as a mobile phone. In addition, there are various uses of moving images and voices, including terrestrial analog / digital TV broadcasting, movies on DVD (Digital Versatile Disc), satellite broadcasting for mobiles, and the like.

  In addition, the use of content in car navigation has made it possible to play back content in the rear and front seats by installing a display in the rear seat as well as the front seat. For example, in Patent Document 1, displays are installed in the front seat and the rear seat, and in order to protect the driver's safety, video playback on the front seat while traveling is prohibited, and content is played on the rear seat while traveling. An in-vehicle multimedia player has been proposed.

  Further, Patent Document 2 discloses that when copy-once content is moved from a recording medium A (for example, a large-capacity recording medium such as a hard disk) to a recording medium B (for example, a small-capacity mobile recording medium), the recording medium B Even after the move, the data on the recording medium A is not physically erased, the right to use the recording medium A is erased, the right to use is added to the recording medium B, and at the same time, the lending information of the content is recorded to the recording medium B. A content copy management method that protects the rights of the copyright holder by storing the content in the device and preventing the use of the content of the recording medium A unless it matches the media key and content ID of the recording medium B. It is disclosed.

JP-A-9-63257 JP 2006-107165 A

  However, since the above-described Patent Document 1 does not assume the use of the same recording medium from a plurality of display devices in the vehicle, each display device can reproduce only the same video. Therefore, the operation input to the recording medium playback device affects all display devices that are playing back video. For example, if a user inputs a menu screen display operation to a DVD player that is playing a chapter, it is inconvenient because other users who are referring to the chapter are forced to view the menu screen.

  In view of the above-described background art, an object of the present invention is to provide an in-vehicle device that can use various contents from a plurality of display devices in a vehicle and improve user convenience.

  In order to solve the above-described problems, an in-vehicle device according to the present invention includes a plurality of in-vehicle display devices capable of displaying and outputting content data such as music and video, and the content connected to the in-vehicle display device and recorded on a recording medium. In an in-vehicle device capable of reading and transmitting data to the in-vehicle display device and displaying the data, the in-vehicle device includes a temporary storage unit that stores the content data, and the in-vehicle display device that is reproducing the content read from the recording medium. Vehicle-mounted display device management means that can individually control content data to be identified and sent to each vehicle-mounted display device, and the vehicle-mounted display device management means temporarily stores the content data of the recording medium in the temporary holding means. And the held data is transmitted to a plurality of in-vehicle display devices.

  ADVANTAGE OF THE INVENTION According to this invention, in the system which refers to a single recording medium simultaneously from several vehicle-mounted display apparatuses, it becomes possible to use a content in a different reproduction position, and a user convenience improves.

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

  The in-vehicle device of the first embodiment holds content data such as music and video held in a recording medium in a temporary holding unit for each in-vehicle display device in use, and enables operation from each device. This is an example of deleting only copyright protection target data in the retained data when the vehicle is stopped.

  FIG. 1 is a conceptual diagram of an in-vehicle network system in which an in-vehicle device according to the present invention and an in-vehicle display device are connected by a network. As shown in FIG. 1, the in-vehicle device 102 includes a recording medium 101 on which content is recorded, temporary holding means 103 that temporarily holds content data, and a vehicle that detects whether power is supplied from a power supply device of the vehicle. Power supply information acquisition means 104 and in-vehicle display device management means 105 capable of recognizing devices such as in-vehicle display devices connected via the in-vehicle network 106 are provided.

  The content recording medium 101 is a medium such as a CD, DVD, HD (High-Definition) DVD, or BD (Blu-ray Disc) on which music or video content is recorded. Further, a mass storage device such as an HDD (Hard Disk Drive) or a storage device using silicon memory such as a flash memory card may be used.

  The in-vehicle device 102 is a car navigation capable of reproducing video from the recording medium 101. A recording medium playback device such as an in-vehicle DVD player or an in-vehicle HDD recorder may be externally connected or connected via a network. The temporary holding means 103 is a storage device using a mass storage device such as an HDD or a silicon memory such as a flash memory card. Further, a rewriting medium such as CD ± RW, DVD ± RW, or DVD-RAM may be used.

An example of a method for determining whether the temporarily stored content is a copyright protection target is a method of confirming copy control information CCI (Copy Control Information) included in the recording medium. Unless the copy control information CCI is “Copy-free”, it is subject to copyright protection. In particular, when “Copy-never” is set, content copying cannot be performed, and recording on another recording medium is prohibited.

  Therefore, it is necessary to prevent theft of data from the temporary storage memory due to disassembly of the device even in the case of temporary storage in a buffer or the like. Examples of the theft prevention method include a method of erasing a buffer at the end of use and a method of encrypting content when holding a buffer.

  In addition, “copy-impossible” content may require processing to prevent data theft even when transmitted to a network. Examples of techniques for preventing theft from the network include copyright protection techniques such as DTCP (Digital Transmission Contents Protection). DTCP can also be applied to the in-vehicle network 106 in this embodiment.

  Further, as a method of clearly indicating the copyright protection target content when data is stored in the temporary storage means 103, the presence or absence of a copyright protection target flag attached to the data is used. Alternatively, the copy control information CCI may be held together with the content data instead of the copyright protection target determination flag.

  The vehicle power supply information acquisition unit 104 receives information on in-vehicle sensors acquired from a body system such as a CAN (Controller Area Network) / LIN (Local Interconnect Network) or a powertrain system network not shown in FIG. The vehicle status is determined using information such as a threshold value stored in advance in the power information acquisition unit 104, and the vehicle is turned on / off by an ACC (accessory key) that is supplied with power in conjunction with the engine of the vehicle. It is possible to determine whether or not the vehicle is ready to run.

  The in-vehicle display device management unit 105 includes an arithmetic device such as a CPU, a storage device such as a memory, and a program that executes control processing.

  The in-vehicle network 106 includes IEEE 1394, IEEE 802.3, information-oriented in-vehicle network MOST (Media Oriented Systems Transport), IDB-1394, control-in-vehicle network, data lines for transferring video data and control data A communication method such as wireless communication such as analog wired communication having a control line for transferring data, wireless LAN (802.11a / b / g / n), Bluetooth, UWB (Ultra Wide Band), or the like is conceivable. Hereinafter, the communication system of the in-vehicle network in this specification is the same.

As the plurality of in-vehicle display devices 107, installed in the front seat of the vehicle, the front seat monitor that can be viewed by the user of the driver seat and the front passenger seat, the rear seat monitor embedded in the back of the front seat headrest, and the ceiling For example, a roof monitor that pulls down the monitor unit when used. Alternatively, a mobile phone or a portable media player that is brought in from the outside and connected to the in-vehicle network 106 may be used. In FIG. 1, two units 107a and 107b are shown as an example. Note that the term “in-vehicle display device 107” refers to a plurality of in-vehicle display devices 107a, 107b,..., And the term “107a, 107b. A display device is shown. Hereinafter, the same applies to the reference numerals in the description of the other devices and the embodiments described later. )
The in-vehicle display devices 107a and 107b include a unique ID 108a, a unique ID 108b, and input means 109a and 109b, respectively. The unique ID 108 is an ID number (identification number) that is a combination of alphabets and numbers, and is assigned to each in-vehicle display device when the communication system is configured. A unique ID number assigned to the network communication chip may be used. The input unit 109 is a unit for a user using the in-vehicle display device 107 to input an instruction related to reproduction of content data. As the input unit 109, an input using a touch panel function of a display or operation keys, or an audio input using audio analysis Also, an input method using a communication method such as infrared rays, a non-contact IC card reader, an RFID reader, or Bluetooth from an information terminal such as a remote controller or a mobile phone / PDA (Personal Digital Assistants) may be used.
FIG. 2 is a conceptual diagram showing recording medium data held for each in-vehicle display device 107 in the temporary holding means 103. In FIG. 2, reference numerals 201 to 204 respectively correspond to a plurality of in-vehicle display devices 107a, 107b, 107c, and 107d that are held in the temporary holding means 103 and connected to the in-vehicle display device 107 via the in-vehicle network 106. 2 shows a buffer for holding content data read from a recording medium 101 or a digital video camera (not shown). Reference numerals 205, 206, 207, and 208 denote reproduction content data corresponding to each in-vehicle display device transmitted to the network 106, and arrows indicate the data transmission directions. In addition, the same components as those in FIG.
The in-vehicle display device 107 buffer 201 (the same applies to the buffers 202 to 204) is, for example, a FIFO (First In, First Out) queue secured on a memory.

  The reproduction content data 205 (the same applies to 202 to 204) is, for example, MPEG2-TS (Moving Picture Experts Group 2 Transport Stream), H.264, or H.264 for video data. It may be compressed data such as H.264 / MPEG-4 AVC or Motion JPEG or uncompressed data such as YUV. The audio may be in a compressed digital format such as MP3 (MPEG-1 Audio Layer-3), AAC (Advanced Audio Coding), PCM (Pulse Code Modulation).

  2 is configured such that four in-vehicle display devices 107 (107a to 107d) not shown in the figure are connected to the in-vehicle device 102 having the recording medium 101 via the in-vehicle network 106. The display devices 107a and 107b refer to different chapters of the content of the recording medium 101, for example, a DVD video that is subject to copyright protection. The in-vehicle display devices 107c and 107d refer to non-copyright video contents held in a recording medium (not shown) such as a digital video camera. The in-vehicle display device management unit 105 receives a reproduction request input by the user using the user input unit 109a in the in-vehicle display device 107a identified by the unique ID 108a, and the content data of the recording medium 101 is temporarily stored in the in-vehicle display unit 103. The content data is stored in correspondence with 107a, and the content data is sequentially transmitted to the network 106 in accordance with the reproduction status. The same processing is performed when a reproduction request is received from another in-vehicle display device.

  The in-vehicle display device management unit 105 performs similar buffer processing in response to a reproduction request from the in-vehicle display device. Note that when the buffer process is performed, the content of the buffer target is recognized by referring to the copy control information CCI, and the content is also recorded in the in-vehicle display device buffer that is the target of copyright protection. In FIG. 2, the check box of the buffers 201 and 202 indicates that the content is copyright-protected content. In the present embodiment, content copyright protection target information is input for each buffer, but it may be for each content file. Particularly, when the recording medium is an HDD recorder, the copyright protection information may be different for each content included in the HDD.

  In this example, the buffer 201 is a buffer for holding the content data of the in-vehicle display device 107a, and is written from chapter 4 (hereinafter referred to as “Cha.4” and the same applies to other chapters) to Cha. 8 holds content data, and the triangular mark shown in FIG. 6 is transmitted as reproduction content data 205 to the in-vehicle display device 107b via the network 106. The buffer 202 is a buffer for holding the content data of the in-vehicle display device 107b. 3 is transmitted as reproduction content data 206 to the in-vehicle display device 107b via the network 106. Similarly, the buffer 203 is a buffer for holding the content data of the in-vehicle display device 107c, and the playback content data Cam. 4 is transmitted to the in-vehicle display device 107c as the reproduction content data 207, and the buffer 204 is a buffer for holding the content data of the in-vehicle display device 107d, and the reproduction content data Cam. 26 is transmitted as reproduction content data 208 to the in-vehicle display device 107d via the network 106. The same applies to the reproduction content data 206, 207, and 208. However, the content data of the recording medium 101 is retained in the playback position of the in-vehicle display device 107 and the data before and after that, so that operations such as fast-forwarding, rewinding, and moving to the next chapter from the in-vehicle display device 107 are performed. When the in-vehicle display device management means 105 accepts the response, it becomes possible to respond by using the data held in the buffer 201. In addition, it does not affect other in-vehicle display devices that are referencing the content of the same recording medium.

  Further, when the user instructs the reproduction other than the content data held in the buffer 201 from the input means 109, the in-vehicle display device management means 105 reads out the designated location of the content data from the recording medium 101 and transmits it to the in-vehicle display device 107a. Further, the content data holding process is started in the temporary holding unit 103. In this process, the other in-vehicle display devices 107b, 107c, and 107d reproduce the content data held in advance in the respective buffers 202, 203, and 204.

  FIG. 3 is an operation explanatory diagram of the recording medium 101, the in-vehicle device 102, the temporary holding unit 103, the vehicle power supply information acquiring unit 104, the in-vehicle display device management unit 105, the in-vehicle network 106, and the in-vehicle display device 107 shown in FIG. is there.

The in-vehicle display device management unit 105 receives a notification of power supply stop from the vehicle power source information acquisition unit 104 (step S301), and determines whether or not the content data in the recording medium 101 is being transmitted to the in-vehicle display device 107 through the temporary storage unit. If it is determined that the content data is not transmitted, or the content data is transmitted directly to the in-vehicle display device 107 without going through the temporary holding means 103, the process ends (step S302), and the content data is transmitted using the temporary holding means. If so, the recording medium 101 is instructed to stop playback (step S303), and it is determined whether the stored data is copyright protection data. If the data is non-copyright protection data, The process ends (step S304). If it is copyright protection data, all the content data held in the temporary holding means 103 is erased (step S305), and the process ends.
In the embodiment described above, the temporary holding means 103 prepares a buffer for each in-vehicle display device, or prepares an area for each in-vehicle display device in one buffer, and records and holds data before and after the playback position. However, by referring to the overlapping data as shared data, it is possible to reduce the number of times of reading from the recording medium 101 and the amount of retained data. For example, in FIG. 4, 5, and 6 are also held in the buffer 203 for the in-vehicle display device 107c. This overlapping portion can reduce the number of times content data is read from the recording medium 101 by reusing the content data after the reproduction by the in-vehicle display device 107a is completed in the in-vehicle display device 107c.

  In addition, as a method of reducing the information held in the temporary holding means, a method of discarding the data recording address on the memory, a method of overwriting meaningless numeric data on the recording data, or a volatile property in the temporary holding means A method of erasing by stopping power supply may be selected by using a memory. The purpose of this is to prevent theft of content by copying data temporarily held after the operation is stopped to an external recording medium from the viewpoint of copyright protection.

  In addition, as a content holding method in the temporary holding unit 103, an area in which the copyright protection target content is encrypted and held in the temporary holding unit 103, and an area in which the copyright protection non-target content is held without encryption are stored. It may be secured. For example, when the DVD video is copyright-protected content, it is possible to record the data in the encryption area and prevent the content from being stolen by data copying or the like.

  Further, in the above-described embodiment, it has been described that it is DVD moving image data. Similarly, in the case of a music CD, an album composed of a plurality of songs is used in, for example, the in-vehicle display devices 1 and 2, and each differs. Even when a music piece is played back, a single recording medium can be freely used by a plurality of users by temporarily holding and playing the music piece in the temporary holding means.

  Also, recent car navigation systems include an HDD, which is ripped to the HDD when a music CD is played, and music data is converted and recorded by an irreversible compression method such as MP3. According to this method, music data can be transmitted from the CD and HDD to the in-vehicle display device at the next playback, but the compressed data recorded on the HDD has less sound data than the original sound, and the sound quality is higher than the original sound. to degrade. In addition, there is a content that prohibits copying to an HDD or the like in a recording medium regardless of CD or DVD. For this reason, in the distribution method by ripping to the HDD, high-quality content reproduction cannot be performed for a plurality of in-vehicle display devices. However, according to the method using the temporary holding means 103 of the present embodiment, it is possible to simultaneously provide high-quality original sound to a plurality of users.

  In the first embodiment, the same in-vehicle device 102 has the recording medium 101, the recording medium playback function, and the in-vehicle display device management means 105. However, each component is connected by an in-vehicle network. Different devices may be provided. For example, the recording medium 101 and a BD player connected to the in-vehicle network as a recording medium playback device may be used.

  According to the first embodiment, the content data held in the recording medium is temporarily held in the temporary holding means, so that the moving image content held in the recording medium such as a DVD can be simultaneously referred to from a plurality of in-vehicle display devices. In addition, even when an operation such as changing the playback position is performed, the other in-vehicle display devices can be continuously played back without being affected.

  The present embodiment is an example in which reproduction information in each in-vehicle display device is retained as a history corresponding to the in-vehicle display device when the vehicle is stopped, the history is read out when the vehicle is restarted, and the content is resumed from the stop point. . FIG. 4 is a conceptual diagram of an in-vehicle network system in which the in-vehicle device 102 of this embodiment and the in-vehicle display device 107 are connected via a network.

  In FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals. This embodiment is different from the configuration of FIG. 1 of the first embodiment in that the in-vehicle device 102 includes a reproduction status holding unit 401 and a reproduction content history 402. Even in this embodiment, the content data held in the recording medium is held in the temporary holding means 103, so that the content can be referred to from a plurality of in-vehicle display devices at the same time. Of course, the in-vehicle display device can continue the reproduction without being affected. The reproduction status holding unit 401 records information related to the content being reproduced by the in-vehicle display device management unit 105 that has received the notification of the stop of power supply from the vehicle power source information acquisition unit 104. The reproduction content history 402 is information in which each in-vehicle display device 107 is associated with the reproduced content.

  The reproduction status holding means is a large capacity storage device such as an HDD or a storage device using a silicon memory such as a flash memory card. Further, a rewritable recording medium such as CD ± RW, DVD ± RW, or DVD-RAM may be used.

  The reproduction content history 402 is described in a language such as XML (Extensible Markup Language), and various information necessary for resuming the unique ID 108 of the in-vehicle display device 107 and the type, content name, chapter information, reproduction position, etc. of the recording medium 101 It is.

  FIG. 5 is a detailed table example of the playback content history 402. In FIG. 5, reference numeral 501 denotes in-vehicle display device information such as a unique ID 108, which is held by the in-vehicle display device 107, 502 denotes a recording medium type indicating the type of the recording medium 101, and 503 denotes content stored in the recording medium 101. The content name is a name, 504 is chapter information indicating the chapter number of the content held in the recording medium 101, and 505 is the reproduction position of the content held in the recording medium 101.

The in-vehicle display device information 501 is information necessary for identifying a plurality of in-vehicle display devices 107 such as a unique ID, functions such as a screen size as a display device, presence / absence of sound output, installation position, etc. It may be held by adding various information.
The recording medium type 502 is information indicating the type such as a DVD, CD, or digital video camera externally connected to the in-vehicle device.
The chapter information 504 is information such as a chapter number for a DVD and a song number for a CD.
The playback position 505 is a playback time in the chapter determined by the previous playback position of the content name 503 or the chapter information 504.

  6 shows the recording medium 101, the in-vehicle device 102, the vehicle power supply information acquisition means 104, the in-vehicle display device management means 105, the reproduction status holding means 401, the reproduction content history 402, the in-vehicle network 106, and the in-vehicle display shown in FIG. 4 is an operation sequence diagram of the device 107. FIG.

The in-vehicle display device management unit 105 receives a notification of power supply stop from the vehicle power source information acquisition unit 104 (step S601), determines whether or not the content data of the recording medium 101 is being transmitted to the in-vehicle display device 107, and transmits it. If not, the process ends (step S602), and if it is transmitted, the reproduction status holding unit 401 holds the content information such as the chapter number and the reproduction position of the content being reproduced on each in-vehicle display device as the history 402. Then (step S603), the recording medium 101 is instructed to stop reproduction (step S604), and the process ends.
7 shows the recording medium 101, the in-vehicle device 102, the vehicle power supply information acquisition unit 104, the in-vehicle display device management unit 105, the reproduction status holding unit 401, the reproduction content history 402, the in-vehicle network 106, and the in-vehicle display device 107 in FIG. It is an operation | movement sequence diagram which restarts content reproduction with each vehicle-mounted display apparatus at the time of the vehicle power supply start.

  The in-vehicle display device management unit 105 receives a notification of power supply start from the vehicle power source information acquisition unit 104 (step S701), and confirms the activation of each in-vehicle display device 107 by recognizing the unique ID 108 via the in-vehicle network 106. Then, the reproduction content history 402 is read from the reproduction status holding means 401 and the content information corresponding to the recognized unique ID 108 of the in-vehicle display device 107 is confirmed (step S703). It is determined whether or not there is content identical to the content information recorded in the playback content history 402 on the recording medium 101. If there is no content, the process ends (step S704). If there is such content, it is recorded in the content history 402. The content read from the recording medium 101 based on information such as the content name, chapter number, and playback position is started to be transmitted to the in-vehicle display device 107 (step S705).

In this embodiment, as the in-vehicle display device 107, a device having individual differences in display functions, such as a mobile phone or a portable media player that is brought in from the outside and connected to the in-vehicle network 106, is used as the display device. In this case, in addition to the unique ID described as the in-vehicle display device information 501, the screen size as a display device, functions such as the presence / absence of audio output, and various information such as the installation position are recorded, so that the screen size is corrected when content is resumed. Can be automatically applied.
According to the second embodiment, by recording the content information being reproduced on each in-vehicle display device when the vehicle power supply is stopped, the content can be resumed from the end point in each in-vehicle display device when the vehicle power supply is resumed. It becomes possible.

  This embodiment reads user information used when the vehicle moves or starts using the in-vehicle display device, and stores content information being played back when the vehicle is stopped as a history corresponding to each user information using the in-vehicle display device, This is an example in which the history is read when the in-vehicle display device is restarted, and the content is resumed from the state at the time of stopping.

  FIG. 8 is a conceptual diagram of an in-vehicle network system in which an in-vehicle device according to the present invention and an in-vehicle display device are connected by a network. In FIG. 8, the same components as those in FIG. 4 of the second embodiment are denoted by the same reference numerals.

In this embodiment, as shown in FIG. 8, user information holding means 801 for holding identification information of a user who uses this system and settings of the in-vehicle display device and the like is used as the in-vehicle device 102, and each in-vehicle display device 107 is used. 4 differs from the configuration of FIG. 4 in the second embodiment in that each vehicle-mounted display device includes a reading unit 802 that reads user information. In this embodiment, the content data held in the recording medium is held in the temporary holding means, so that the content can be referred to from a plurality of on-vehicle display devices at the same time. Of course, the display device can continue the reproduction without being affected.
The user information holding unit 801 is a storage device using a mass storage device such as an HDD or a silicon memory such as a flash memory card. Further, a rewritable recording medium such as CD ± RW, DVD ± RW, or DVD-RAM may be used. User information held in the user information holding means 801 includes output settings of the in-vehicle display device 107 set in advance by the user, such as language and subtitle output settings during DVD video playback, screen brightness, speaker position, and presence / absence of use of earphones For example, sound output settings such as volume. In addition, from the viewpoint of privacy, user settings may be restricted from the viewpoints of usage restrictions when the user is not a family member, vehicle safety, and the like. For example, playback of moving images on the driver's seat display while traveling is prohibited by default settings, and cannot be changed even by user settings.

  The reading means 802 is a dedicated switch assigned in advance to each user or an RFID reader that automatically recognizes an RFID tag held by the user. Further, voice reading using voice analysis, infrared connection from an information terminal such as a remote controller with a fingerprint or finger vein authentication function, a cellular phone or a PDA, a non-contact IC card reader, Bluetooth, or the like may be used. In particular, in a cellular phone / PDA having a Bluetooth function, it is possible to hold not only user authentication but also data equivalent to the user information held in the user information holding means 801. A vehicle using a communication function by Bluetooth It is also possible to simply execute the user information input setting to.

FIG. 9 is a history information table of contents reproduced by each in-vehicle display device held in the in-vehicle device 102. In FIG. 9, reference numeral 901 denotes a use user name that is the name of a user who uses the in-vehicle display device 107, and the same components as those in FIG.
The user name 901 may be a user name that is one of information related to a user stored in the user information storage unit 801 in advance, and may be unique information that can identify the user, such as a unique user ID. .

  10 shows the recording medium 101, in-vehicle device 102, vehicle power supply information acquisition means 104, in-vehicle display device management means 105, reproduction status holding means 401, reproduction content history 402, user information holding means 801, and reading means shown in FIG. 802 is an operation sequence diagram of the in-vehicle network 106 and the in-vehicle display device 107. FIG. Note that. The same operations as those in FIG. 6 are denoted by the same reference numerals. The in-vehicle display device management unit 105 receives a notification of power supply stop from the vehicle power source information acquisition unit 104 (step S601), determines whether or not the content data of the recording medium 101 is being transmitted to the in-vehicle display device 107, and transmits it. If not, the process ends (step S602), and if it is transmitted, the reproduction status holding unit 401 uses the content information such as the chapter number of the content being reproduced on each in-vehicle display device in advance by the reading unit 802. The reproduction content history 402 is stored in a form corresponding to the user name (step S1101). Next, the recording medium 101 is instructed to stop reproduction (step S604), and the process ends.

  11 shows the recording medium 101, in-vehicle device 102, vehicle power supply information acquisition means 104, in-vehicle display device management means 105, reproduction status holding means 401, reproduction content history 402, user information holding means 801, reading means shown in FIG. 802 is an operation sequence diagram of the in-vehicle network 106 and the in-vehicle display device 107. FIG.

In addition, the same code | symbol is attached | subjected about operation | movement description similar to FIG. The in-vehicle display device management means 105 receives a notification of the start of power supply from the vehicle power source information acquisition means 104 (step S701), and recognizes the activation of each in-vehicle display device 107 by checking the unique ID 108 via the in-vehicle network 106. (Step S702), the reproduction content history 402 is read from the reproduction status holding means 401, and the content information corresponding to the recognized unique ID 108 of the in-vehicle display device 107 is confirmed (step S703). If the user name 901 is acquired from the reading unit 802 and cannot be acquired, the above-described steps S703 to S705 are performed (step S1001). If the user name 901 is acquired, the reproduction content of the reproduction status holding unit 401 is acquired. The content information corresponding to the use user name 901 is referred to from the history 402 (step S1002), and if there is no corresponding content information, the processing is terminated (step S1003). The transmission of the content data read from the recording medium 101 based on the information such as the content name, chapter number, and playback position thus started is started to the in-vehicle display device 107 corresponding to the user name (step S1004).
According to the third embodiment, when the vehicle power supply is stopped, the content information being reproduced on each in-vehicle display device is recorded in association with the user information, so that the user is different from the vehicle user when the vehicle power supply is restarted. Even when the display device is used, it is possible to restart the content from the stop point.

  According to the third embodiment, when the vehicle power supply is stopped, the content information being reproduced on each in-vehicle display device is recorded in association with the user information, so that the user is different from the stop when the vehicle power supply is restarted. Even when the in-vehicle display device is used, it is possible to restart the content from the stop point.

The conceptual diagram of the vehicle-mounted network system which connected the vehicle-mounted apparatus and vehicle-mounted display apparatus of this invention with the network. The conceptual diagram of the recording medium data hold | maintained for every display apparatus in the temporary holding means. The operation | movement sequence diagram at the time of the vehicle power supply stop of the component apparatus of FIG. The conceptual diagram of the vehicle-mounted network system which connected the vehicle-mounted apparatus of this invention, and the vehicle-mounted display apparatus with the network. History information table diagram of content reproduced by each in-vehicle display device held in the in-vehicle device The operation | movement sequence diagram which records the content in reproduction | regeneration with each vehicle-mounted display apparatus at the time of the vehicle power supply stop in the component apparatus of FIG. The operation | movement sequence diagram which restarts content reproduction with each vehicle-mounted display apparatus at the time of the vehicle power supply start in the component apparatus of FIG. The conceptual diagram of the vehicle-mounted network system which connected the vehicle-mounted apparatus of this invention, and the vehicle-mounted display apparatus with the network. The history information table of the content reproduced | regenerated with each vehicle-mounted display apparatus hold | maintained with the vehicle-mounted apparatus. The operation | movement sequence diagram which records the content in reproduction | regeneration with each vehicle-mounted display apparatus at the time of the vehicle power supply stop in the component apparatus of FIG. The operation | movement sequence diagram which restarts content reproduction with each vehicle-mounted display apparatus at the time of the vehicle power supply stop supply start in the component apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Recording medium, 102 ... In-vehicle device, 103 ... Temporary holding means, 104 ... Vehicle power supply information acquisition means, 105 ... In-vehicle display device management means, 106 ... In-vehicle network, 107 ... Vehicle display device, 108 ... Unique ID, 109 ... Input means.

Claims (5)

A plurality of in-vehicle display devices capable of displaying and outputting content data such as music and video, and connected to the in-vehicle display device, can read out the content data recorded on a recording medium and transmit it to the in-vehicle display device for display In vehicle equipment,
The in-vehicle device has temporary holding means for holding the content data;
Vehicle-mounted display device management means capable of identifying the vehicle-mounted display device that is reproducing the content read from the recording medium and individually controlling the content data to be sent to each vehicle-mounted display device;
The in-vehicle display device management means temporarily stores content data of the recording medium in the temporary storage means, and transmits the stored data to a plurality of in-vehicle display devices. The in-vehicle device according to claim 1,
The on-vehicle apparatus characterized in that the temporary holding means holds the content data in a form that can determine whether or not copyright protection is applied. The in-vehicle device according to claim 2,
The in-vehicle device further includes vehicle power information acquisition means for recognizing whether or not power is supplied from a power line that is supplied with power in conjunction with a vehicle starting device, and for determining a power supply status. When it is determined that the power supply has been stopped, only the copyright protection-applied content data in the content data stored in the temporary holding means is erased. The in-vehicle device according to claim 3,
The in-vehicle device further includes a reproduction status holding unit that holds at least the in-vehicle display device, content identification information being reproduced, and a reproduction content history including a reproduction position;
The in-vehicle display device management means records the playback content history of the in-vehicle display device in the playback status holding means when the vehicle power supply information acquisition means recognizes the stop of power supply, and the playback status holding means An in-vehicle device characterized by referring to a reproduction content history and starting content reproduction from a content and a reproduction position according to the in-vehicle display device. The in-vehicle device according to claim 4,
The information processing apparatus further comprises reading means capable of reading information relating to a user, and the in-vehicle display device management means receives user identification information acquired from the reading means of the in-vehicle display device, and the reproduction status holding means receives the user information. The identification information is held corresponding to the in-vehicle display device, and when the vehicle power supply information acquisition unit recognizes the stop of power supply, the reproduction content history of the in-vehicle display device is recorded in the reproduction status holding unit, and the next time The reproduction content history held in the reproduction status holding means at the time of reproduction is referred to, and content reproduction is started from the content corresponding to the user information of the reproduction content history and the reproduction position with respect to the in-vehicle display device. In-vehicle device.

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