CAMERA EVENT LOGGER

• US 20110249128A1
• Filed: 06/23/2011
• Published: 10/13/2011
• Est. Priority Date: 12/23/2008
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Pictures Entertainment Incorporated (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Pictures Entertainment Incorporated (Sony Group Corp.)
• Inventors: Ketcham, James, Wayne, Ian, Squyres, Phil
• Granted Patent: US 8,811,793 B2
• Time in Patent Office: Days
• US Class Current: 348/207.11
• CPC Class Codes: G11B 27/10 Indexing; Addressing; Timing or synchronising; Measuring tape travel
• CPC Class Codes: G11B 27/323 Time code signal, e.g. on a cue track as SMPTE- or EBU-time code
• CPC Class Codes: H04N 23/00 Cameras or camera modules comprising electronic image sensors; Control thereof
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera
• CPC Class Codes: H04N 9/806 with processing of the sound signal
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

A camera event logger device coupled to a motion picture camera, including: a data port configured to receive control signals to manage the logger device including a particular receive frequency; a radio-frequency receiver configured to receive time signal of the particular receive frequency to enable fine adjustment of a timecode; a timecode manager including a plurality of timecode readers and at least one timecode generator, a first timecode reader of the plurality of timecode readers configured to receive the time signal from the radio-frequency receiver and make the time signal available to the at least one timecode generator, wherein the at least one timecode generator is configured to generate the timecode by conditioning the time signal, the timecode manager configured to receive camera timecode from the motion picture camera, and to send back adjusted camera timecode adjusted in accordance with the conditioned timecode; a processor configured to receive camera status information from the motion picture camera and the conditioned timecode from the timecode manager, wherein the camera status information is tagged with the conditioned timecode and processed to generate metadata files; and a storage unit configured to store the metadata files. Keywords include logger, timecode, and slate.

Claims

1. A camera event logger device coupled to a motion picture camera, the logger device comprising:

a data port configured to receive control signals to manage the logger device including a particular receive frequency;

a radio-frequency receiver configured to receive time signal of the particular receive frequency to enable fine adjustment of a timecode;

a timecode manager including a plurality of timecode readers and at least one timecode generator, a first timecode reader of the plurality of timecode readers configured to receive the time signal from said radio-frequency receiver and make the time signal available to the at least one timecode generator,

wherein the at least one timecode generator is configured to generate the timecode by conditioning the time signal,

said timecode manager configured to receive camera timecode from the motion picture camera, and to send back adjusted camera timecode adjusted in accordance with the conditioned timecode;

a processor configured to receive camera status information from the motion picture camera and the conditioned timecode from the timecode manager,

wherein the camera status information is tagged with the conditioned timecode and processed to generate metadata files; and

a storage unit configured to store the metadata files.

2. The device of claim 1, further comprising

a data transfer interface module configured to receive the metadata files, and to transmit the metadata files to a post production facility through said data port.

3. The device of claim 2, wherein the post production facility includes a smart slate.

4. The device of claim 1, wherein the at least one timecode generator includes an on-board oscillator,

wherein the timecode is generated based on the on-board oscillator when the time signal is intermittently available.

5. The device of claim 1, wherein the timecode is configured as frame counts.

6. The device of claim 1, further comprising

a plurality of status indicators to indicate status of the at least one timecode generator.

7. The device of claim 1, wherein the received camera timecode is a camera timecode associated with video data of the motion picture camera.

8. The device of claim 1, wherein the received camera timecode is a camera timecode associated with audio data of the motion picture camera.

9. The device of claim 1, wherein a second timecode reader of the plurality of timecode readers is configured to monitor timecode which originates from the motion picture camera, and to log discontinuities as record start and stop events.

10. A method for logging events of a motion picture camera on a logger device, the method comprising:

receiving control signals to manage the logger device including a particular receive frequency;

receiving time signal of the particular receive frequency to enable fine adjustment of a timecode;

generating the timecode by conditioning the received time signal;

receiving camera status information from the motion picture camera and the conditioned timecode,

wherein the camera status information is tagged with the conditioned timecode, and processed to generate metadata files; and

storing the metadata files.

11. The method of claim 10, further comprising:

receiving camera timecode from the motion picture camera;

adjusting the camera timecode in accordance with the conditioned timecode; and

transmitting the adjusted camera timecode to the motion picture camera.

12. The method of claim 11, further comprising:

determining start time and stop time of the motion picture camera by searching for discontinuities in the received camera timecode; and

recording the start time and the stop time of the motion picture camera.

13. The method of claim 10, wherein receiving camera timecode from the motion picture camera includes

receiving camera timecode value associated with video data of the motion picture camera.

14. The method of claim 10, further comprising

transmitting the metadata files to a smart slate.

15. The method of claim 10, wherein the timecode is generated based on an oscillator internal to the logger device when the time signal is intermittently available.

16. The method of claim 10, further comprising

outputting the timecode as an audio signal for recording by the motion picture camera.

17. The method of claim 10, further comprising

recording on the logger device camera types, timecode types, and timecode user bits.

18. The method of claim 10, wherein receiving camera timecode from the motion picture camera includes

receiving camera timecode values associated with video data and sound data of the motion picture camera.

19. The method of claim 18, further comprising

determining an offset between the timecode value associated with video data and the timecode value associated with sound data at a particular event.

20. The method of claim 19, further comprising

transmitting the offset to a post-production ingest station.