Recording/playback apparatus

• US 20030145099A1
• Filed: 08/13/2002
• Published: 07/31/2003
• Est. Priority Date: 01/29/2002
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Inoue, Yoshinori, Oka, Hiroyuki
• Application Number:
  US10/216,910
• Publication Number:
  US 20030145099A1
• Time in Patent Office: Days
• US Class Current: 709/232
• CPC Class Codes: H04N 21/21 Server components or server architectures
• CPC Class Codes: H04N 21/23 Processing of content or additional data; Elementary server operations; Server middleware
• CPC Class Codes: H04N 21/40 Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
• CPC Class Codes: H04N 21/4113 PC
• CPC Class Codes: H04N 21/4147 PVR [Personal Video Recorder] H04N5/76 takes precedence ; arrangements for broadcast with accumulation-type receivers H04H20/40
• CPC Class Codes: H04N 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/44227 Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local network configuring of peripheral devices in general G06F9/4411; monitoring connectivity in data switched networks H04L43/0811
• CPC Class Codes: H04N 21/8455 involving pointers to the content, e.g. pointers to the I-frames of the video stream
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

This invention provides an apparatus capable of performing time slip playback even upon occurrence of a network trouble. This invention relates to an apparatus which, when a network trouble occurs, acquires, of multimedia data, a point representing the position of multimedia data which has already been transmitted to a network, and after the network recovers, transmits multimedia data subsequent to the point to the network.

Claims

1. An apparatus which transmits multimedia data to be played back to a network, comprising:

means for, when a trouble of the network is detected, stopping transmission of the multimedia data;

means for acquiring a point representing a position of the multimedia data obtained when transmission of the multimedia data is stopped; and

means for retransmitting the multimedia data to the network from the point acquired by the acquiring means.

2. An apparatus according to claim 1, further comprising,

means for storing the multimedia data in a storage device, and

means for reading out the multimedia data from the storage device and transmitting the readout multimedia data to the network.

3. An apparatus according to claim 1, further comprising, means for monitoring, of the multimedia data, the point representing a position of a multimedia data portion which is transmitted by said means for transmitting.

4. An apparatus according to claim 1, further comprising, means for detecting the trouble of the network based on a state of the network.

5. An apparatus according to claim 2, wherein the means for stopping stops transmission of the multimedia data while storing the multimedia data in said means for storing.

6. An apparatus which transmits multimedia data to be played back to a network, comprising:

means for transmitting the multimedia data to the network;

means for, when a trouble of the network is detected, stopping transmission of the multimedia data;

means for acquiring a point representing a position of the multimedia data obtained when transmission of the multimedia data is stopped;

means for transmitting the point acquired by said acquiring means to the network on the basis of a point acquisition request; and

means for transmitting the multimedia data to the network on the basis of a multimedia data acquisition request in response to the transmitted point.

7. An apparatus according to claim 6, further comprising,

means for storing the multimedia data in a storage device, and

means for reading out the multimedia data from the storage device.

8. An apparatus according to claim 6, further comprising, means for monitoring, of the multimedia data, the point representing a position of a multimedia data portion which is transmitted by said transmitting means.

9. An apparatus according to claim 6, further comprising, means for detecting the trouble of the network based on a state of the network.

10. An apparatus according to claim 7, wherein the means for stopping the transmission of the multimedia data while storing the multimedia data in said means for storing.

11. An apparatus according to claim 7, which further comprises compressing means for compressing the multimedia data, and in which said means for storing stores the multimedia data compressed by said compressing means.

12. An information processing apparatus which receives multimedia data to be played back via a network, and plays back the received multimedia data, comprising:

means for detecting a state of the network;

means for, when recovery of the network is detected, acquiring a point representing a position of a multimedia data portion transmitted to said information processing apparatus;

means for acquiring via the network the multimedia data from the position represented by the acquired point; and

means for playing back the acquired multimedia data.

13. An apparatus according to claim 12, wherein said playback means decompresses the multimedia data acquired, and plays back the decompressed multimedia data.

14. A recording/playback method in a recording/playback apparatus which transmits multimedia data to be played back to a network, comprising:

stopping transmission of the multimedia data when a trouble of the network is detected;

acquiring a point representing a position of the multimedia data obtained when transmission of the multimedia data is stopped; and

retransmitting the multimedia data to the network from the point acquired.

15. A recording/playback method according to claim 14, further comprising,

storing the multimedia data in a storage device, and

reading out the multimedia data from the storage device and transmitting the readout multimedia data to the network.

16. A recording/playback method according to claim 14, further comprising, monitoring, of the multimedia data, the point representing a position of a multimedia data portion which is transmitted.

17. A recording/playback method according to claim 14, further comprising, detecting the trouble of the network based on a state of the network.

18. A recording/playback method in a recording/playback apparatus which transmits multimedia data to a network, comprising:

transmitting the multimedia data to the network;

stopping transmission of the multimedia data when a trouble of the network is detected;

acquiring a point representing a position of the multimedia data obtained when transmission of the multimedia data is stopped;

transmitting the point acquired to the network on the basis of a point acquisition request; and

transmitting the multimedia data to the network on the basis of a multimedia data acquisition request in response to the transmitted point.

19. A recording/playback method according to claim 18, further comprising, monitoring, of the multimedia data, the point representing a position of a multimedia data portion which is transmitted.

20. A recording/playback method according to claim 18, further comprising, detecting the trouble of the network based on a state of the network.