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US 5,132,807 AGranted
Recording apparatus for recording main information with additional information
AssigneeCanon Kabushiki Kaisha
InventorsHiroyuki Takimoto, Koji Takahashi, Mikihiro Fujimoto
Life of this patent
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Abstract
An apparatus for recording main information signals in tracks formed on a recording medium, wherein the track is not only made up from the recording area for the main information signals, but also provided with a recording area for additional information signals, whereby digital additional information signals and analog additional information signals are recorded in frequency-multiplexed relation on the additional information signal recording area, thus forming an information signal recording apparatus.
Claims18
An information signal recording apparatus, comprising:
- (a) head means for recording a signal on a recording medium;
- (b) main generating means for producing a first recording signal concerning a main information signal;
- (c) first forming means for producing a digital additional information signal;
- (d) second forming means for producing an analog additional information signal;
- (e) mixing means for mixing said digital additional information signal and said analog additional information signal to produce a second recording signal;
- and
- (f) time-division multiplex means for time-divisionally multiplexing said first recording signal and said second recording signal and supplying an output signal to said head means.
4 more elements
An information signal recording apparatus, comprising:
- (a) head means for recording a signal on a recording medium;
- (b) first generating means for producing a first recording signal concerning a first main information signal;
- (c) second generating means for producing a second recording signal concerning a second main information signal;
- (d) first forming means for producing a digital additional information signal;
- (e) second forming means for producing an analog additional information signal;
- (f) mixing means for mixing said digital additional information signal and said analog additional information signal to produce a third recording signal;
- and
- (g) time-division multiplex means for time-divisionally multiplexing said first recording signal, said second recording signal and said third recording signal and supplying an output signal to said head means, said time-division multiplex means arranging said third recording signal in between said first recording signal and said second recording signal.
5 more elements
An information signal recording apparatus, comprising:
- (a) main recording means for recording a main information signal on a recording medium;
- (b) first forming means for producing a digital additional information signal;
- (c) second forming means for producing an analog additional information signal;
- (d) mixing means for mixing said digital additional information signal and said analog additional information signal to produce mixed additional information;
- and
- (e) additional information recording means for recording said mixed additional information on said recording medium.
3 more elements
A video signal recording apparatus, comprising:
- (a) means for producing a video signal;
- (b) means for producing a pilot signal for tracking control;
- (c) means for producing digital additional information consisting of at least two bits;
- (d) modulating means for modulating said digital additional information by an analog carrier signal to produce an analog additional information signal, said analog carrier signal having a frequency in between a frequency band of said video signal and a frequency of said pilot signal;
- (e) mixing means for frequency-multiplexing said video signal, said pilot signal and said analog additional information signal to produce a recording signal;
- and
- (f) recording means for recording the recording signal obtained by said mixing means on a recording medium.
4 more elements
A video signal recording apparatus, comprising:
- (a) first generating means for producing a picked-up picture video signal;
- (b) second generating means for producing digital additional information consisting of at least two bits;
- (c) third generating means for producing a character video signal representing at least part of said digital additional information;
- (d) mixing means for mixing said picture video signal and said character video signal to produce a composite video signal;
- (e) fourth generating means for producing an additional information signal concerning said digital additional information;
- and
- (f) recording means for recording said composite video signal and said additional information signal on a recording medium.
4 more elements
An information signal recording and reproducing apparatus comprising:
- (a) first recording means for recording a main information signal on a recording medium;
- (b) second recording means for recording an additional information panel including date information on said recording medium;
- (c) first reproducing means for reproducing said main information signal from said recording medium;
- (d) second reproducing means for reproducing said additional information signal from said recording medium;
- (e) transporting means for transporting said recording medium;
- (f) separating means for separating said date information from a signal reproduced by said second reproducing means;
- and
- (g) control means for controlling transportation of said recording medium by using said date information separated by said separating mean.
5 more elements
Dependencies are inferred from the claim text.