US4554602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video signal recording apparatus
Assignee: Canon Inc
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Filing: 1983-02-17
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Granted: 1985-11-19
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Expires: 2003-02-17
Abstract
Abstract A video signal recording apparatus includes apparatus for driving a recording medium; video signal recording apparatus for recording a video signal on the medium; control signal reproducing apparatus for reproducing a control signal recorded on the medium; and signal producing apparatus for producing a first signal which relates to the driven state of the medium. Also included are first control apparatus for controlling the drive apparatus according to a phase difference between the control signal reproduced by the control signal reproducing apparatus and a second signal which relates to a video signal to be recorded on the medium. A second control apparatus controls the signal producing apparatus with the second signal during a period close to a time at which at least the drive apparatus reaches a prescribed stable condition.
Inventors
- 👤 Kazumitsu Tobe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:21
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B15/00; G11B15/18; G11B15/1808; G11B15/1875; G11B27/00; G11B27/02; G11B27/022; G11B27/024
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
183 words
A video signal recording apparatus, comprising: (a) recording means for recording a video signal on a recording medium and forming a video track; (b) reproducing means for reproducing a control signal from a control track of the recording medium, the control signal being recorded at positions related to the video tracks; (c) moving means for moving the recording medium; (d) input means for inputting a video signal; (e) separation means for separating a synchronizing signal from the input video signal; (f) generation means for generating a timing signal in relation to a moving action of said moving means; (g) control means for controlling said moving means, said control means including a selection circuit for selectively outputting the control signal reproduced by the reproducing means and the timing signal generated by the generation means, and a phase comparison circuit for phase comparing the synchronizing signal with the output signal of the selection circuit; and (h) setting means for compulsorily setting a phase of the timing signal on the basis of a phase of said synchronizing signal when the selection circuit selects the control signal.
Claim 2
Dependent Claim
183 words
A video signal recording apparatus, comprising: (a) recording means for recording a video signal on a recording medium and forming a video track; (b) reproducing means for reproducing a control signal from a control track of the recording medium, the control signal being recorded at positions related to the video tracks; (c) moving means for moving the recording medium; (d) input means for inputting a video signal; (e) separation means for separating a synchronizing signal from the input video signal; (f) generation means for generating a timing signal in relation to a moving action of said moving means; (g) control means for controlling said moving means, said control means including a selection circuit for selectively outputting the control signal reproduced by the reproducing means and the timing signal generated by the generation means, and a phase comparison circuit for phase comparing the synchronizing signal with the output signal of the selection circuit; and (h) setting means for compulsorily setting a phase of the timing signal on the basis of a phase of said synchronizing signal when the selection circuit selects the control signal.
Claim 3
Dependent Claim
27 words
An apparatus according to claim 1, further comprising instruction means for instructing the recording of a video signal on the video track based on a manual operation.
Claim 4
Dependent Claim
33 words
An apparatus according to claim 2, further comprising changeover control means for changing over operation states of said recording means, reproducing means, selection circuit and setting means in response to said instruction means.
Claim 5
Dependent Claim
47 words
An apparatus according to claim 3, wherein said changeover means makes inoperative said reproducing means with the timing of changing over said recording means in to an operative state to cause said selection circuit to select the timing signal and release the operation of said setting means.
Claim 6
Dependent Claim
26 words
An apparatus according to claim 3, wherein said changeover means changes over said recording means into an operative state a predetermined time after the manual operation.
Claim 7
Dependent Claim
56 words
An apparatus according to claim 3, wherein said changeover means includes a detection circuit for detecting the state of the control signal supplied from said control means to said moving means, and changes over said recording means into an operative state on the basis of an output signal of said recording means after the manual operation.
Claim 8
Dependent Claim
67 words
An apparatus according to claim 3, further comprising reverse driving means for moving said recording medium in a direction reverse to the direction in which said recording means is moved by said moving means during operation, wherein said reverse driving means starts to operate on the basis of the manual operation and stops operation before said changeover means changes over said recording means into an operative state.
Claim 9
Dependent Claim
58 words
An apparatus according to claim 1, wherein said generation means includes a detection member for detecting the operation of said moving means to produce a detection signal and a frequency dividing circuit for dividing the frequency of said detection signal, and said setting means includes a reset circuit for resetting said frequency dividing circuit by said synchronizing signal.
Claim 10
Dependent Claim
161 words
An information signal recording apparatus, comprising: (a) recording means for recording an information signal on a recording medium; (b) reproducing means for reproducing a control signal from the recording medium, the control signal being recorded at positions related to recording positions of the information signal on the recording medium; (c) moving means for moving the recording medium (d) separation means for separating a reference signal from the information signal; (e) generation means for generating a timing signal in relation to a moving action of said moving means; (f) first control means for controlling said moving means based on a phase error between the reference signal and the timing signal; (g) second control means for controlling said moving means based on a phase error between the control signal and the reference signal; and (h) setting means for compulsorily setting a phase of the timing signal on the basis of a phase of said reference signal when said second control means is enabled.
Claim 11
Dependent Claim
161 words
An information signal recording apparatus, comprising: (a) recording means for recording an information signal on a recording medium; (b) reproducing means for reproducing a control signal from the recording medium, the control signal being recorded at positions related to recording positions of the information signal on the recording medium; (c) moving means for moving the recording medium (d) separation means for separating a reference signal from the information signal; (e) generation means for generating a timing signal in relation to a moving action of said moving means; (f) first control means for controlling said moving means based on a phase error between the reference signal and the timing signal; (g) second control means for controlling said moving means based on a phase error between the control signal and the reference signal; and (h) setting means for compulsorily setting a phase of the timing signal on the basis of a phase of said reference signal when said second control means is enabled.
Claim 12
Dependent Claim
37 words
An apparatus according to claim 9, further comprising interlocking means for interlocking said first control means and said setting means so as to prevent said setting means from operating during the operation of said first control means.
Claim 13
Dependent Claim
116 words
An information signal recording apparatus, comprising: (a) recording means for recording an information signal on a recording medium; (b) moving means for moving the recording medium; (c) separation means for separating a reference signal from the information signal; (d) generation means for generating a timing signal in relation to a moving action of said moving means; (e) control means for controlling said moving means based on a phase error between the reference signal and the timing signal when said recording means records the information signal on the medium; and (f) setting means for compulsorily setting a phase of the timing signal on the basis of a phase of said reference signal irrespective of said control means.
Claim 14
Dependent Claim
116 words
An information signal recording apparatus, comprising: (a) recording means for recording an information signal on a recording medium; (b) moving means for moving the recording medium; (c) separation means for separating a reference signal from the information signal; (d) generation means for generating a timing signal in relation to a moving action of said moving means; (e) control means for controlling said moving means based on a phase error between the reference signal and the timing signal when said recording means records the information signal on the medium; and (f) setting means for compulsorily setting a phase of the timing signal on the basis of a phase of said reference signal irrespective of said control means.
Claim 15
Dependent Claim
35 words
An apparatus according to claim 11, further comprising interlocking means for interlocking said control means and said setting means so as to prevent said setting means from operating during the operation of said control means.
References Cited (Backward Citations)
US4358797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |