Recording method for video/audio data

• US 20050100309A1
• Filed: 04/08/2003
• Published: 05/12/2005
• Est. Priority Date: 01/10/2003
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: VCS Video Communication Systems AG (Robert Bosch GmbH)
• Inventors: Gilge, Michael
• Granted Patent: US 7,783,930 B2
• Time in Patent Office: Days
• US Class Current: 386/234
• 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 21/4223 Cameras H04N23/00 takes precedence
• CPC Class Codes: H04N 21/4331 Caching operations, e.g. of an advertisement for later insertion during playback
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 5/781 on disks or drums

Abstract

In order to provide a recording method for data which have been or are being generated at a data source in a time sequenced manner and are transmitted via a digital network to at least one recording device for storage, by means of which method the data can be reliably recorded, it is provided that the data are stored at the data source before the transmission on the digital network in such a way that, after a fault on the digital network, data which were intended for transmission during the period of the fault can be made available to the at least one recording device.

Claims

1. Recording method for data which have been or are being generated at a data source in a time sequenced manner and are transmitted via a digital network to at least one recording device for storage, wherein the data are stored at the data source before the transmission on the digital network in such a way that, after a fault on the digital network, data which were intended for transmission during the period of the fault are available for transmission to the at least one recording device.

2. Recording method according to claim 1, wherein the data generated in a time sequenced manner are video data and/or audio data.

3. Recording method according to claim 2, wherein the video/audio data are generated by at least one data acquiring device.

4. Recording method according to claim 3, wherein the at least one data acquiring device comprises a camera and/or a microphone.

5. Recording method according to claim 3, wherein the at least one data acquiring device comprises a video server and/or audio server.

6. Recording method according to claim 1, wherein the data generated in a time sequenced manner are stored in a recording apparatus, from which the data are then transmitted via the digital network to the at least one recording device.

7. Recording method according to claim 1, wherein storage of the data at the data source takes place independently of the recording of the data on the recording device.

8. Recording method according to claim 1, wherein a data recording takes place at a data transmitter for data buffering.

9. Recording method according to claim 1, wherein a data recording takes place at a data receiver.

10. Recording method according to claim 1, wherein test signals are sent via the digital network in order to be able to detect faults with respect to the data transmission on the digital network.

11. Recording method according to claim 1, wherein the at least one data acquiring device and the at least one recording device exchange test signals via the digital network in order to be able to detect faults with respect to the data transmission on the digital network.

12. Recording method according to claim 11, wherein changes in status with respect to data transmission faults are registered by the at least one data acquiring device and the at least one recording device.

13. Recording method according to claim 12, wherein the instants of changes in status are registered.

14. Recording method according to claim 11, wherein a data recording of a data source before transfer of the data to the digital network is carried out at the latest when a fault of the data transmission is detected.

15. Recording method according to claim 14, wherein the data recording at the data source takes place continuously.

16. Recording method according to claim 14, wherein a transmission of data recorded at the data source via the digital network is initiated when freedom from faults is detected after a fault of the data transmission.

17. Recording method according to claim 16, wherein the data recorded during the fault of the data transmission are transmitted.

18. Recording method according to claim 1, wherein, after a fault of the data transmission, data recorded at the data source corresponding to the period of the fault are transmitted via the digital network to the at least one recording device.

19. Recording method according to claim 18, wherein a data gap originated during the fault of the data transmission on the at least one recording device is filled by means of the data recorded at the data source.

20. Recording method according to claim 18, wherein an automatic data transmission of data recorded at the data source takes place after a fault of the data transmission.

21. Recording method according to claim 1, wherein the storage capacity for the data recording at the data source is chosen in dependence on a transmission rate for the data on the digital network and a predetermined expected maximum fault period for the digital network.

22. Recording method according to claim 21, wherein the storage capacity is chosen to be large enough that, during the data transmission of data from the data recording of a data source on the digital network, new data can be recorded at the data source.

23. Recording method according to claim 1, wherein, in the event of successful transmission via the digital network, data are erased from the data recording at the data source.

24. Recording method according to claim 1, wherein the reading out of data from a data memory at the data source for the transmission of the data on the digital network is connected to the writing of new data into the data memory.

25. Recording method according to claim 24, wherein the data written in are more up-to-date than the data read out.

26. Recording method according to claim 23, wherein the erasure of the data recorded at the data source only takes place when the data received by the at least one recording device have been checked for intactness.

27. Data acquiring device for video/audio data, which comprises an interface to a digital network for the transmission of data via the digital network, wherein a data memory is provided, by means of which data are recordable before transfer to the digital network, in order to be able after a transmission fault on the digital network to provide data which were generated during the period of the fault.

28. Data acquiring device according to claim 27, wherein a detection apparatus is provided, by means of which test signals are emittable to the digital network and by means of which faults of the data transmission are detectable.

29. Data acquiring device according to claim 27, wherein a registration apparatus is provided, by means of which changes in status with respect to faults in the data transmission are registerable.

30. Data acquiring device according to claim 27, wherein a control apparatus is provided, by means of which data from the data memory which were generated during a fault of the data transmission on the digital network are transmittable on the digital network.

31. Data acquiring device according to claim 27, wherein a control apparatus is provided, by means of which stored data are erasable from the data memory after transmission on the digital network.

32. Data acquiring device according to claim 27, wherein the data memory is adapted in its storage capacity to the data transmission rate and the maximum expected fault period of the data transmission.

33. Data acquiring device according to claim 27, wherein at least one of a camera or a microphone are provided.

34. Data acquiring device according to claim 27, wherein at least one of a video server or an audio server are provided.

35. Recording device for video/audio data, comprising:

an interface for a digital network, via which data are receivable from the digital network; and

a memory for recording the data,

wherein a detection apparatus is provided, by means of which test signals are emittable to the digital network or test signals are receivable from the digital network, or test signals are emittable and receivable in order to be able to detect faults of the data transmission from a data acquiring device.

36. Recording device according to claim 35, wherein a registration apparatus is provided, by means of which changes in status with respect to faults in the data transmission are registerable.

37. Recording device according to claim 35, wherein a control apparatus is provided, by means of which, after a detected fault, received data which have been recorded during the period of the fault and are transmitted after ending of the fault are writeable into the memory in the correct time sequence.

38. Recording system for video/audio data, comprising:

at least one data acquiring device for video/audio data, comprising;

an interface to a digital network for the transmission of data via the digital network; and

a data memory by means of which data are recordable before transfer to the digital network, in order to be able after a transmission fault on the digital network to provide data which were generated during the period of the fault; and

at least one recording device for video/audio data, comprising

an interface for a digital network, via which data are receivable from the digital network;

a memory for recording the data; and

a detection apparatus, by means of which test signals are emittable to the digital network or test signals are receivable from the digital network or test signals are emittable and receivable, in order to be able to detect faults of the data transmission from the data acquiring device;

wherein the data acquiring device and the recording device co-operating via the digital network.

39. Recording system according to claim 38, wherein the at least one recording device records the data supplied by the least one data acquiring device.