Digital airborne video cassette recorder and player

• US 20060245719A1
• Filed: 05/02/2005
• Published: 11/02/2006
• Est. Priority Date: 05/02/2005
• Status: Abandoned Application

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Carroll, William H.
• Application Number:
  US11/124,643
• Publication Number:
  US 20060245719A1
• Time in Patent Office: Days
• US Class Current: 386/240
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G11B 2020/1287 Synchronisation pattern, e.g. VCO fields specific bit sequences of sync patterns G11B20/1403; A/V synchronisation G11B27/00
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• 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 5/9201 involving the multiplexing of an additional signal and the video signal
• CPC Class Codes: H04N 5/9264 using transform coding

Abstract

A digital video cassette recorder which is adapted for use on an aircraft to record video data in a digital format as opposed to an analog format. The recorder includes a frame sync card for adding color burst to video which is black and white and a GPS to SMPTE converter which passes the video signal through converter to the video cassette recorder and also uses the video signal to encode Time, Space, and Position Information data onto a SMPTE time code for each frame of video data supplied to the recorder.

Claims

1. An airborne video cassette recording apparatus for use on an aircraft to record video data in a digital format generated by a video source located on board said aircraft, comprising:

(a) a video frame sync device connected to said video source to receive a video signal containing said video data from said video source, said video frame sync device stabilizing said video signal and adding a color burst to said video signal when said video signal from said video source consist of black and white video data;

(b) a GPS source for providing GPS information;

(c) a converter connected to said video frame sync to receive said video signal and said GPS source to receive said GPS information, said converter passing said video signal through said converter, said converter using said said video signal to encode time and date data and said GPS information onto a time code for each of a plurality of frames of said video data; and

(d) a video cassette recorder connected to said converter to receive said video signal and said time code for each of said plurality of frames of said video data, said video cassette recorder recording said video signal in said digital format on a cassette tape placed within said video cassette recorder and inserting said time code for each of said plurality of frames of said video data onto said cassette tape.

2. The video cassette recording apparatus of claim 1 further comprising a 28 volt to 12 volt step down power supply module connected to said video cassette recorder, said converter and said video frame sync device to supply electrical power to said video cassette recorder, said converter and said video frame sync device.

3. The video cassette recording apparatus of claim 1 wherein said video cassette recorder has a Liquid Crystal Display (LCD) for displaying said video data, said Liquid Crystal Display being located on a control panel for said video cassette recorder.

4. The video cassette recording apparatus of claim 3 further comprising an LCD protective cover positioned in front of the Liquid Crystal Display for said video cassette recorder, said LCD protective cover including:

(a) a piano style hinge positioned on the bottom edge of said LCD protective cover, said piano style hinge securing said LCD protective cover to the bottom edge of the control panel for said video cassette recorder wherein said piano style hinge allowing a user to rotate said LCD protective cover to open and close said LCD protective cover;

(b) a mash button located on the control panel of said video cassette recorder, said mash button being connected to said Liquid Crystal Display to turn off said Liquid Crystal Display when said mash button is depressed;

(c) a push button block mounted on an inner surface of said protective cover to engage and depress said mash button and turn off Liquid Crystal Display said when said protective cover is closed; and

(d) a latch hasp centrally located on an upper edge of said LCD protective cover, said latch hasp engaging a cover locking latch mounted on an upper edge of said control panel to lock the LCD protective cover closed and turn off said Liquid Crystal Display, said cover locking latch including release button which when depressed unlocks said LCD protective cover allowing said user to open said LCD protective cover and view said Liquid Crystal Display.

5. The video cassette recording apparatus of claim 1 wherein GPS information provided by said GPS source comprises Time, and Space, Position Information data.

6. The video cassette recording apparatus of claim 1 wherein said video cassette recorder records said video signal in an 8-bit digital component recording format which includes a 5:

1 data compression ratio of said video data recorded on said cassette tape and a sampling rate of 4;

1;

1 for said video data recorded on said cassette tape.

7. The video cassette recording apparatus of claim 6 wherein said video cassette recorder reproduces said video data at a 6.3 MHz bandwidth which allows for a reproduction of said video data at 550 lines of horizontal resolution.

8. The video cassette recording apparatus of claim 1 wherein said video cassette recorder records said video data in a digital format which allows for recording of said video data for approximately 184 minutes recording time with a standard size cassette tape and approximately 40 minute recording time with a mini-size cassette tape.

10. The video cassette recording apparatus of claim 1 further comprising a 28 volt to 12 volt step down power supply module connected to said video cassette recorder, said converter and said video frame sync device to supply electrical power to said video cassette recorder, said converter and said video frame sync device.

9. An airborne video cassette recording apparatus for use on an aircraft to record video data in a digital format generated by a video source located on board said aircraft, comprising:

(a) a video frame sync device connected to said video source to receive a video signal containing said video data from said video source, said video frame sync device stabilizing said video signal and adding a color burst to said video signal when said video signal from said video source consist of black and white video data;

(b) a GPS source for providing GPS information wherein said GPS information includes Time, and Space, Position Information data;

(c) a GPS to SMPTE (Society of Motion Picture and Television Engineers) converter connected to said video frame sync to receive said video signal and said GPS source to receive said , said GPS to SMPTE converter passing said video signal through said GPS to SMPTE converter, said GPS to SMPTE converter using said video signal to encode time and date data and said GPS information onto a SMPTE time code for each of a plurality of frames of said video data;

(d) a video cassette recorder connected to said GPS to SMPTE converter to receive said video signal and said SMPTE time code for each of said plurality of frames of said video data, said video cassette recorder recording said video signal in an 8-bit digital component recording format on a cassette tape placed within said video cassette recorder and inserting said SMPTE time code for each of said plurality of frames of said video data onto said cassette tape, wherein said cassette tape provides for a recording time of approximately 184 minutes when said cassette tape is a standard size cassette tape; and

(e) a Liquid Crystal Display located on a control panel for said video cassette recorder, said Liquid Crystal Display displaying said video data and said SMPTE time code recorded on said cassette tape when said video cassette recorder is operating in a playback mode.

11. The video cassette recording apparatus of claim 9 wherein said video cassette recorder records said video signal in said 8-bit digital component recording format which includes a 5:

1 data compression ratio of said video data recorded on said cassette tape and a sampling rate of 4;

1;

1 for said video data recorded on said cassette tape.

12. The video cassette recording apparatus of claim 11 wherein said video cassette recorder reproduces said video data at a 6.3 MHz bandwidth which allows for a reproduction of said video data at 550 lines of horizontal resolution.

13. The video cassette recording apparatus of claim 9 further comprising a two position switch module connected to said GPS to SMPTE converter, said two position switch module receiving said GPS information from an external GPS unit and an internal GPS receiver module wherein a user selects a first position for said modular switch to receive said GPS information from said external GPS unit and a second position for said switch module to receive said GPS information from said internal GPS receiver module.

14. The video cassette recording apparatus of claim 9 further comprising an LCD protective cover positioned in front of the Liquid Crystal Display for said video cassette recorder, said LCD protective cover including:

(a) a piano style hinge positioned on the bottom edge of said LCD protective cover, said piano style hinge securing said LCD protective cover to the bottom edge of the control panel for said video cassette recorder wherein said piano style hinge allowing a user to rotate said LCD protective cover to open and close said LCD protective cover;

(b) a mash button located on the control panel of said video cassette recorder, said mash button being connected to said Liquid Crystal Display to turn off said Liquid Crystal Display when said mash button is depressed;

(c) a push button block mounted on an inner surface of said protective cover to engage and depress said mash button and turn off Liquid Crystal Display said when said protective cover is closed; and

(d) a latch hasp centrally located on an upper edge of said LCD protective cover, said latch hasp engaging a cover locking latch mounted on an upper edge of said control panel to lock the LCD protective cover closed and turn off said Liquid Crystal Display, said cover locking latch including release button which when depressed unlocks said LCD protective cover allowing said user to open said LCD protective cover and view said Liquid Crystal Display.

15. A method for recording video data in a digital format generated by a video source located on board an aircraft, comprising the steps of:

(a) receiving GPS information from a GPS source wherein said GPS information includes Time, and Space, Position Information data;

(b) receiving a video signal containing said video data generated by a video source located on board said aircraft;

(c) adding a color burst to said video signal when said video signal from said video source consist of black and white video data;

(d) stabilizing said video signal wherein a video frame sync module stabilizes said video signal and adds said color burst to said video signal;

(e) transferring said video signal to a converter;

(e) encoding time and date data and said GPS information onto a time code for each of a plurality of frames of said video data, wherein said converter utilizes said video signal to encode said time and date data and GPS information onto said time code for each of said plurality of frames of said video data;

(f) passing said video signal through said converter to a video cassette recorder which contains a cassette tape

(g) transferring said time code for each of said plurality of frames of said video data to said video cassette recorder in a digital signal format; and

(h) recording said video signal including said time code for each of said plurality of frames of said video data on said cassette tape within said video recorder.

16. The method of claim 15 further comprising the step of displaying said video data including said time code, wherein a Liquid Crystal Display located on a control panel for said video cassette recorder displays said video data including said time code.

17. The method of claim 15 further comprising the step of providing a protective cover for said Liquid Crystal Display wherein said protective cover is positioned in front of said Liquid Crystal Display, said LCD protective cover including:

(a) a piano style hinge positioned on the bottom edge of said LCD protective cover, said piano style hinge securing said LCD protective cover to the bottom edge of the control panel for said video cassette recorder wherein said piano style hinge allowing a user to rotate said LCD protective cover to open and close said LCD protective cover;

(b) a mash button located on the control panel of said video cassette recorder, said mash button being connected to said Liquid Crystal Display to turn off said Liquid Crystal Display when said mash button is depressed;

(c) a push button block mounted on an inner surface of said protective cover to engage and depress said mash button and turn off Liquid Crystal Display said when said protective cover is closed; and

(d) a latch hasp centrally located on an upper edge of said LCD protective cover, said latch hasp engaging a cover locking latch mounted on an upper edge of said control panel to lock the LCD protective cover closed and turn off said Liquid Crystal Display, said cover locking latch including release button which when depressed unlocks said LCD protective cover allowing said user to open said LCD protective cover and view said Liquid Crystal Display.

18. The method of claim 15 wherein said time code for each of said plurality of frames of said video data comprises a SMPTE (Society of Motion Picture and Television Engineers) time code for each of said plurality of frame of said video data.

19. The method of claim 15 wherein said video cassette recorder records said video signal in an 8-bit digital component recording format which includes a 5:

1 data compression ratio of said video data recorded on said cassette tape and a sampling rate of 4;

1;

1 for said video data recorded on said cassette tape.

20. The method of claim 15 wherein said video cassette recorder records said video data in a digital format which allows for recording of said video data for approximately 184 minutes recording time with a standard size cassette tape and approximately 40 minute recording time with a mini-size cassette tape.