Video system using two different kinds of recording media

• US 5,126,851 A
• Filed: 12/19/1990
• Issued: 06/30/1992
• Est. Priority Date: 06/16/1987
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Takahashi, Koji, Suzuki, Yasutomo, Yoshimura, Katsuji
• Primary Examiner(s): Envall, Jr., Roy N.
• Assistant Examiner(s): Chevalier, Robert
• Application Number:
  US07/630,406
• Time in Patent Office: 559 Days
• Field of Search: 358/342, 358/335, 358/341, 358/343, 358/311, 369/47, 369/84, 369/85, 369/88, 360/14.1, 360/14.2, 360/14.3, 360/72.1, 360/72.2, 360/49, 360/15
• US Class Current: 386/279
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 2220/91 Helical scan format, wherein tracks are slightly tilted with respect to tape direction, e.g. VHS, DAT, DVC, AIT or exabyte
• CPC Class Codes: G11B 27/026 on discs G11B27/028, G11B27/029 take precedence
• CPC Class Codes: G11B 27/028 with computer assistance
• CPC Class Codes: G11B 27/107 of operating tapes
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/3045 superimposed on the recorded main signal, e.g. burn-in-time code
• CPC Class Codes: G11B 27/324 Duty cycle modulation of control pulses, e.g. VHS-CTL-coding systems, RAPID-time code, VASS- or VISS-cue signals
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8233 the additional signal being a character code signal
• CPC Class Codes: H04N 9/83 the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
• CPC Class Codes: H04N 9/8715 involving the mixing of the reproduced video signal with a non-recorded signal, e.g. a text signal

Abstract

A video system is arranged to record, on a second recording medium of a relatively small capacity, a given period portion of a video signal relating to an image plane representing each of varied programs included in the video signal and information on a recorded position of each of the programs on a first recording medium which has a relatively large capacity.

Claims

1. A video system comprising:

a) receiving means arranged to receive a video signal;

b) first extracting means for extracting one image plane portion of said video signal as a representative image signal representing one of programs including in said video signal, each of the programs indicating motion pictures;

c) generating means for constantly generating time data;

d) second extracting means for extracting first and second representative time data corresponding to initial and last image plane portions of the program to which said representative image signal belongs;

e) first recording means for constantly recording said video signal and said time data on a first recording medium;

f) multiplexing means for multiplexing said first and second representative time data with said representative image signal which belongs to the program corresponding thereto to produce a multiplexing signal; and

g) second recording means for recording said multiplexing signal on a second recording medium of a smaller recording capacity than that of said first recording medium.

2. A system according to claim 1, wherein said first extracting means extracts an initial image plane portion of said one of programs as said representative image signal.

3. A system according to claim 1, wherein said multiplexing and means includes means for frequency-multiplexing said representative time information together with said representative signal.

4. A system according to claim 1, wherein said second recording medium is a disc-shaped recording medium and said first recording medium is a tape-shaped recording medium.

5. A system according to claim 1, further comprising reproducing means for reproducing said representative image signal and said first and second representative time informations recorded on said second recording medium.

6. A system according to claim 5, further comprising display means for display said representative image signal reproduced by said reproducing means.

7. A system according to claim 6, wherein said display means is arranged to display also one of said first and second representative time data reproduced by said reproducing means.

8. A system according to claim 7, wherein said display means includes a character generating means for generating a character signal relating to said one of first and second representative time data reproduced by said reproducing means.

9. A system according to claim 8, wherein said display means includes multiplexing means for multiplexing together the representative image signal reproduced by said reproducing means and the character signal generated by said character generating means.

10. A video system comprising:

a) first reproducing means for reproducing a video signal and time information recorded on a first recording medium;

b) first extracting means for extracting one image plane portion of said video signal as a representative image signal representing one of programs included in said video signal reproduced by said first reproducing means, each of the programs indicating motion pictures;

c) second extracting means for extracting first and second representative time data reproduced by said first reproducing means, the first and second representative time data corresponding to initial and last image plane portions of the program to which said representative image signal belongs;

d) multiplexing means for multiplexing said first and second representative time data with said representative image signal which belongs to the program corresponding thereto to produce a multiplexing signal; and

e) recording means for recording said multiplexing signal on a second recording medium of a smaller recording capacity than that of said first recording medium.

11. A system according to claim 10, wherein said first extracting means extract an initial image plane portion of said one of programs as said representative image signal.

12. A system according to claim 10, further comprising second reproducing means for reproducing said representative image signal and said first and second representative time data recorded on said second recording medium.

13. A system according to claim 12, further comprising display means for displaying the representative image signal reproduced by said second reproducing means.

14. A system according to claim 13, wherein said display means is arranged to display also one of said first and second representative time data reproduced by said second reproducing means.

15. A system according to claim 14, wherein said display means includes character generating means for generating a character signal relating to said one of first and second representative time data reproduced by said second reproducing means.

16. A system according to claim 15, wherein said display means includes multiplexing means for multiplexing together the representative image signal reproduced by said second reproducing means and the character signal generated by said character generating means.

17. A system according to claim 12, further comprising control means for controlling a reproducing action of said first reproducing means on the basis of said first and second representative time data reproduced by said second reproducing means.

18. A system according to claim 10, wherein said second recording medium is a disc-shaped recording medium, and said first recording medium is a tape-shaped recording medium.

19. A video system comprising:

a) reproducing apparatus for reproducing a video signal recorded on a tape-shaped recording medium, said reproducing apparatus including transporting means for transporting the tape-shaped recording medium in the longitudinal direction thereof;

b) extracting means for extracting one image plane portion of said video signal as a representative image signal representing one of programs included in said video signal reproduced by said first reproducing means, each of the programs indicating motion pictures;

c) generating means for generating a mode information which indicates a reproducing mode of said reproducing apparatus for the program to which said representative image signal belongs, said mode information indicating a transporting speed of the tape-shaped recording medium; and

d) recording apparatus for recording said mode information and said representative image signal on a disk-shaped recording medium.

20. A system according to claim 19, wherein said recording apparatus includes multiplexing means arranged to multiplex said mode information and said representative image signal.

21. A video system comprising:

a) reproducing apparatus for reproducing a video signal recorded on a first recording medium;

b) extracting means for extracting one image plane portion of said video signal as a representative image signal representing one of programs included in said video signal reproduced by said first reproducing means, each of the programs indicating motion pictures;

c) monitoring means for monitoring a video signal;

d) generating means for generating a mode information which indicates a monitoring mode of said monitoring means for the program to which said representative image signal belongs; and

e) recording and reproducing apparatus for recording and reproducing said mode information and said representative image signal on and from a second recording medium of smaller recording capacity than that of said first recording medium, said mode information indicating whether said monitoring means monitors the video signal reproduced by said reproducing apparatus or the representative image signal reproduced by said recording and reproducing apparatus.

22. A system according to claim 21, wherein said recording and reproducing apparatus includes multiplexing means arranged to multiplex said mode information and said representative image signal.

23. A video system comprising:

a) reproducing apparatus for reproducing a video signal recorded on a first recording medium;

b) extracting means for extracting one image plane portion of said video signal as a representative image signal representing one of programs included in said video signal reproduced by said first reproducing means, each of the programs indicating motion pictures;

c) recording apparatus for recording the video signal reproduced by said reproducing apparatus on a third recording medium;

d) generating means for generating a mode information which indicates a mode of said recording apparatus for the program to which said representative image signal belongs, said mode information indicating whether or not said recording apparatus records the program; and

(e) recording and reproducing apparatus for recording and reproducing said mode information and said representative image signal on and from a second recording medium of a smaller recording capacity than that of said first recording medium.

24. A system according to claim 23, wherein said recording and reproducing apparatus includes multiplexing means arranged to multiplex said mode information and said representative image signal.