Data processing apparatus, data processing method, data processing system, storage medium and program

• US 20070161390A1
• Filed: 03/07/2007
• Published: 07/12/2007
• Est. Priority Date: 07/22/2002
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Tange, Akira, Matsuda, Masafumi
• Granted Patent: US 8,428,577 B2
• Time in Patent Office: Days
• US Class Current: 455/517
• CPC Class Codes: G06F 16/40 of multimedia data, e.g. slideshows comprising image and additional audio data retrieval of still image data G06F16/50; retrieval of audio data G06F16/60; retrieval of video data G06F16/70
• CPC Class Codes: G06F 16/635 Filtering based on additional data, e.g. user or group profiles
• CPC Class Codes: G06F 16/68 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/687 using geographical or spatial information, e.g. location
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99933 Query processing, i.e. searching
• CPC Class Codes: Y10S 707/99936 Pattern matching access
• CPC Class Codes: Y10S 707/99937 Sorting
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing

Abstract

A data processing apparatus is disclosed which includes a reproducing element for reproducing each of a plurality of content data items a reproduction status detecting element for detecting status of each content data item being reproduced by the reproducing element a selecting element for selecting the content data item being reproduced by the reproducing element depending on the reproduction status of the content data item detected by the reproduction status detecting element a content identification data generating element for generating content identification data for identifying the content data item selected by the selecting element from the plurality of content data items and a transmitting element for transmitting to a second data processing apparatus the content identification data generated by the content identification data generating element.

Claims

1. A content data item device comprising;

a communication unit configured to communicate wirelessly with at least one other device; and

a control unit configured to detect at least one other device and receive a list of content data items from the other device when the other device is in a communicable area of said content data item device.

2. The content data item device of claim 1, wherein said control unit is further configured to detect plural other devices in said communicable area and to receive a list of content data items from each said other device.

3. The content data item device of claim 1, wherein said communication unit establishes an ad-hoc network with said at least one other device.

4. The content data item device of claim 1, further comprising:

a list storage unit configured to store a list of content data items stored on the content data item device, and

wherein said control unit is further configured to compare the list of content data items stored on the content data item device with said list received from the other device, and extract a list of content data items which are not on its list of content data items stored on the content data item device.

5. The content data item device of claim 1, wherein said control unit is further configured to count a number of times a content data item is received.

6. A method of processing a list of content data items, said method comprising steps of:

wirelessly detecting, by a content data item device, at least one other device when the at least one other device is in a communicable area of said content data item device; and

receiving, by the content data item device, a list of content data items from the other device.

7. The method of processing a list of content data items of claim 6, further comprising transferring, by the content data item device, a list of content data items to the at least one other device.

8. The method of processing a list of content data items of claim 7, further comprising:

storing a list of content data items stored on the content data item device;

comparing the list of content data items received from said at least one other device with said content data item list of content data items stored on the content data item device; and

extracting a content data item which is not on the list stored on the content data item device from said list of the at least one other device.

9. The method of processing a list of content data items of claim 7, wherein the step of detecting further comprises detecting plural other devices in said communicable area and receiving a list from each other device.

10. The method of processing a list of content data items of claim 7, further comprising:

establishing an ad-hoc network with the at least one other device.

11. The method of processing a list of content data items of claim 7, further comprising:

counting a number of times each content data item on said list is received.