Information processing apparatus, an integrated circuit, a data transfer controlling method, a data transfer controlling program, a program storage medium, a program transmission medium and a data storage medium

• US 7,707,327 B2
• Filed: 04/12/2005
• Issued: 04/27/2010
• Est. Priority Date: 05/13/2004
• Status: Expired due to Fees

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Namba, Takaaki
• Primary Examiner(s): Patel; Niketa I
• Assistant Examiner(s): Abad; Farley J
• Application Number:
  US11/596,078
• Publication Number:
  US 20080034131A1
• Time in Patent Office: 1,841 Days
• Field of Search: 710/74, 710/32, 710/302
• US Class Current: 710/32
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices

Abstract

A media utilization administering device reads a medium ID saved in a memory card, obtains last update time information indicating the respective times during a data transfer at specified time intervals, and stores state information including the medium ID and the last update time information in a utilization administration memory. The media utilization administering device also stores the last update time information as the state information in the memory card. A transfer resumption judging device compares the medium IDs and the last update time information included in the state information and saved in both the memory card attached and the utilization administration memory when the data transfer was started. If the state information held by both agree as a result of the comparison, a transfer resumption controlling device causes a data transfer processing device to resume the data transfer from a position on the data indicated by the last update time information.

Claims

1. An information processing apparatus, comprising:

a data transfer processing device transferring moving image data between the information processing apparatus and a detachable storage medium,

a storage device saving information,

a medium administering device administering the storage medium, and

an attachment and detachment detecting device detecting attachment and detachment of the storage medium during the data transfer, wherein;

said medium administering device includes;

a common information storing section writing common information, which includes medium identification information identifying the storage medium, in both said storage medium and said storage device before the start of the moving image data transfer or during the moving image data transfer to let both said storage medium and said storage device hold the common information, and

a specifying information storing section repeatedly extracting, from the moving image data, a time stamp value which is information specifying a position in the moving image data where a transfer has been ended and is affixed to each position of the moving image data instructing a time to display each position of the moving image data at intervals which are an integer multiple of a unit of the transfer which enables the reconstruction of the data before the transfer, and repeatedly writing the extracted time stamp value as position specifying information in both said storage medium and said storage device during the moving image data transfer at intervals which are an integer multiple of a unit of the transfer which enables the reconstruction of the data before the transfer, and

the information processing apparatus further comprises;

a transfer resumption judging device judging whether or not both said storage medium and said storage device hold the common information in the case where the attachment of the storage medium is detected by said attachment and detachment detecting device before resuming the transfer after the moving image data transfer has been interrupted by the detachment of the storage medium, and

a transfer resumption controlling device causing the data transfer processing device to resume the moving image data transfer from the time stamp value indicated by the last of the position specifying information written in the storage medium only when the judgment result of the transfer resumption judging device is positive,

wherein said transfer resumption judging device judges whether or not both said storage medium and said storage device hold the last of the position specifying information having the same content in addition to the common information in the case where the attachment of the storage medium is detected by said attachment and detachment detecting device before the resumption of the transfer after the moving image data transfer has been interrupted by the detachment of the storage medium.

2. An information processing apparatus according to claim 1, wherein said specifying information storing section renewably performs repeated writing of the position specifying information.

3. An information processing apparatus according to claim 1, wherein said medium administering device writes the information to be written in said storage device in correspondence with the medium identification information.

4. An information processing apparatus according to claim 1, wherein the common information includes apparatus identification information used to identify the information processing apparatus.

5. An information processing apparatus according to claim 4, wherein said medium administering device writes the information to be written in said storage device in correspondence with the apparatus identification information.

6. An information processing apparatus according to claim 1, wherein the common information includes data identification information used to identify the moving image data being transferred.

7. An information processing apparatus according to claim 1, wherein said specifying information storing section writes the position specifying information at intervals which are an integer multiple of a unit of the transfer defined by the specification of said storage medium.

8. An information processing apparatus according to claim 1, wherein said medium administering device writes the information to be written in said storage medium in said storage medium after encryption.

9. An information processing apparatus according to claim 1, wherein said medium administering device writes the information to be written in said storage medium in a protected area if said storage medium includes a normal area normally accessible and the protected area inaccessible without mutual authentication.

10. An information processing apparatus according to claim 9, wherein said medium administering device writes the information to be written in said storage medium in the normal area in addition to the protected area if said storage medium includes the normal area normally accessible and the protected area inaccessible without mutual authentication, and said transfer resumption judging device judges that neither said storage medium nor said storage device holds the common information when the content written in the protected area and the one written in the normal area do not agree.

11. An information processing apparatus according to claim 1, wherein said transfer resumption controlling device causes said data transfer processing device to start the moving image data transfer from the starting position of the moving image data if the judgment result of said transfer resumption judging device is negative.

12. An information processing apparatus according to claim 1, further comprising a power supply interruption detecting device detecting a resupply after the power supply has been interrupted during the data transfer, wherein said transfer resumption judging device judges upon the detection by the power supply interruption detecting device.

13. An information processing apparatus according to claim 1, further comprising a resuming instruction detecting device detecting an instruction by a user to resume the transfer after an instruction by the user to interrupt the transfer during the data transfer, wherein said transfer resumption judging device judges upon the detection by said resuming instruction detecting device.

14. An information processing apparatus according to claim 1, wherein said transfer resumption judging device provides a notification of a judgment result to a user if the judgment result is positive, and said transfer resumption controlling device causes said data transfer processing device to resume the moving image data transfer only when the user provides instructions to resume the transfer in response to the notification.

15. An information processing apparatus according to claim 1, wherein said data transfer processing device selectively stores the data in said storage medium and reads the data from said storage medium as the data transfer, and said information processing apparatus further comprises a data reproducing device reproducing the data read from said storage medium by said data transfer processing device.

16. An information processing apparatus according to claim 15, further comprises a communicator receiving the moving image data to be stored in said storage medium by said data transfer processing device from an outside source.

17. An information processing apparatus according to claim 1, wherein said medium administering device, said resumption judging device and said transfer resumption controlling device are formed on a single semiconductor substrate as an integrated circuit and as a component used in the production of the information processing apparatus.

18. An information processing apparatus according to claim 17, wherein said data transfer processing device is further formed on the single semiconductor substrate.

19. An information processing apparatus according to claim 17, wherein said storage device is further formed on the single semiconductor substrate.

20. An information processing apparatus according to claim 1, further comprising a data storage medium attachable to and detachable from the information processing apparatus, said storage medium comprises and serving as the storage medium in which the data, the common information and the position specifying information are written.

21. An information processing apparatus according to claim 20, further comprising a normal area normally accessible and the protected area inaccessible without mutual authentication, wherein the data is stored in the normal area and the common information and the position specifying information are written at least in the protected area.

22. A data transfer controlling method for controlling an information processing apparatus, the information processing apparatus comprising a data transfer processing device for transferring moving image data between the information processing apparatus and a detachable storage medium, and a storage device for saving information, and an attachment and detachment detecting device for detecting attachment and detachment of the storage medium during the data transfer, the data transfer controlling method comprising:

a common information storing step of letting both the storage medium and the storage device hold common information by writing the common information which includes a medium identification information identifying the storage medium in both the storage medium and the storage device before the start of the data transfer or during the moving image data transfer,

a specifying information storing step of repeatedly extracting, from the moving image data, a time stamp value which is information specifying a position on the moving image data where transfer has been ended and is affixed to each position of moving image data instructing a time to display each position of the moving image data at intervals which are an integer multiple of a unit of the transfer which enables the reconstruction of the data before the transfer, and repeatedly writing the extracted time stamp value as position specifying information in both the storage medium and the storage device during the image data transfer at intervals which are an integer multiple of a unit of the transfer which enables the reconstruction of the data before the transfer,

a transfer resumption judging step of judging whether or not the common information is held in both the storage medium and the storage device in the case where the attachment of the storage medium is detected by the attachment and detachment detecting device before the resumption of the transfer after the moving image data transfer has been interrupted by the detachment of the storage medium, and

a transfer resumption controlling step of causing the data transfer processing device to resume the moving image data transfer from the time stamp value indicated by the last of the position specifying information written in the storage medium only when the judgment result in the transfer resumption judging step is positive;

wherein the transfer resumption judging device judges whether or not both the storage medium and the storage device hold the last of the position specifying information having the same content in addition to the common information in the case where the attachment of the storage medium is detected by the attachment and detachment detecting device before the resumption of the transfer after the data transfer has been interrupted by the detachment of the storage medium.

23. A computer-readable program storage medium storing a program for use in an information processing apparatus, the information processing apparatus comprising a data transfer processing device for transferring moving image data between the information processing apparatus and a detachable storage medium, a storage device for saving information, a computer, and an attachment and detachment detecting device for detecting attachment and detachment of the storage medium during the data transfer, and

the program causing the computer to function as:

a common information storing means for letting both the storage medium and the storage device hold common information by writing the common information which includes medium identification information identifying the storage medium in both the storage medium and the storage device before the start of the moving image data transfer or during the moving image data transfer,

a specifying information storing means for repeatedly extracting, from the moving image data, a time stamp value which is information specifying a position on the moving image data where transfer has been ended and is affixed to each position of the moving image data instructing a time to display each position of the moving image data at intervals which are an integer multiple of a unit of the transfer which enables the reconstruction of the data before the transfer, and repeatedly writing the extracted time stamp value as position specifying information in both the storage medium and the storage device during the moving image data transfer at intervals which are an integer multiple of a unit of the transfer which enables the reconstruction of the data before the transfer,

a transfer resumption judging means for judging whether or not the common information is held in both the storage medium and the storage device in the case of where the attachment of the storage medium is detected by the attachment and detachment detecting device before the resumption of the transfer after the moving image data transfer has been interrupted by the detachment of the storage medium, and

a transfer resumption controlling means for causing the data transfer processing device to resume the moving image data transfer from the time stamp value indicated by the last of the position specifying information written in the storage medium only when the judgment result by the transfer resumption judging means is positive;

wherein the transfer resumption judging device judges whether or not both the storage medium and the storage hold the last of the position specifying information having the same content in addition to the common information in the case where the attachment of the storage medium is detected by the attachment and detachment detecting device before the resumption of the transfer after the data transfer has been by the detachment of the storage medium.