US3864733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control signal apparatus for video disc player
Assignee: RCA Corp
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Filing: 1973-03-19
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Granted: 1975-02-04
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Expires: 1993-03-19
Abstract
Abstract Apparatus arranged to detect the absence of periodically recurring signals such as vertical synchronizing signals in a video disc system is utilized to provide control signals for actuating control functions such as the video pick-up arm return mechanism and video and audio muting circuitry.
Inventors
- 👤 Jr Charles D Boltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:30
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/7605; Y; Y10; Y10S; Y10S358/00; Y10S358/908
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
155 words
A control system for an image reproducing system comprising: apparatus for providing electrical signals representative of informtion stored in a spiral pattern on a storage medium, said signals including varying image-representative components and regularly recurring synchronizing components; means for separating said image-representative and regularly recurring synchronizing components; detecting means responsive to said regularly recurring synchronizing components for providing a first control signal in response to the presence of said synchronizing components and a second control signal in response to the absence of said synchronizing components for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing components; and control means coupled to said detecting means for inhibiting operation of said electrical signal providing apparatus in response to said second control signal and permitting operation of said electrical signal providing apparatus in response to said first control signal.
Claim 2
Dependent Claim
155 words
A control system for an image reproducing system comprising: apparatus for providing electrical signals representative of informtion stored in a spiral pattern on a storage medium, said signals including varying image-representative components and regularly recurring synchronizing components; means for separating said image-representative and regularly recurring synchronizing components; detecting means responsive to said regularly recurring synchronizing components for providing a first control signal in response to the presence of said synchronizing components and a second control signal in response to the absence of said synchronizing components for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing components; and control means coupled to said detecting means for inhibiting operation of said electrical signal providing apparatus in response to said second control signal and permitting operation of said electrical signal providing apparatus in response to said first control signal.
Claim 3
Dependent Claim
31 words
A control system according to claim 1 wherein: said storage medium is a disc having said image representative components and regularly recurring synchronizing components topographically recorded in a spiral pattern therein.
Claim 4
Dependent Claim
41 words
A control system according to claim 1 wherein: said means for separating said image-representative components from said regularly recurring synchronizing components comprises circuitry substantially unresponsive to said image-representative components and responsive for providing predetermined ones of said regularly recurring synchronizing components.
Claim 5
Dependent Claim
43 words
A control system according to claim 1 wherein: said detecting means comprises circuitry including an integrator circuit responsive to a particular regularly recurring synchronizing component having a relatively long time constant, said particular regularly recurring synchronizing component bening operative to provide control signals.
Claim 6
Dependent Claim
39 words
A control system according to claim 4 wherein: said particular regularly recurring synchronizing component corresponds to a vertical synchronizing signal and said predetermined length of time corresponds to the interval required for three to eight consecutive vertical synchronizing pulses.
Claim 7
Dependent Claim
59 words
A control system according to claim 1 wherein: said apparatus comprises a video signal processing channel; and said control means comprises a first means for permitting passage of said electrical signals through said video channel in response to said first control signal and second means for inhibiting said electrical signal providing apparatus in response to said second control signal.
Claim 8
Dependent Claim
48 words
A control system according to claim 6 wherein: said apparatus further comprises a signal pick-up arm arranged to receive electrical signals from said storage medium; and said second means disengages said pick-up arm from said storage medium, inhibiting electrical signal pick-up in response to said second control signal.
Claim 9
Dependent Claim
144 words
A control system for an image reproducing system comprising: apparatus for providing electrical signals representative of video information from a disc having said signal representative information formed therein, said signal representative information including image representative components and regularly recurring synchronizing components; means for separating said regularly recurring synchronizing components from said image representative components; means for detecting said regularly recurring synchronizing components for providing a first control signal in response to the presence of said synchronizing components and a second control signal in response to the absence of said synchronizing components for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing components; and control means coupled to said apparatus and responsive to said second control signal for inhibiting output of electrical signals from said apparatus.
Claim 10
Dependent Claim
144 words
A control system for an image reproducing system comprising: apparatus for providing electrical signals representative of video information from a disc having said signal representative information formed therein, said signal representative information including image representative components and regularly recurring synchronizing components; means for separating said regularly recurring synchronizing components from said image representative components; means for detecting said regularly recurring synchronizing components for providing a first control signal in response to the presence of said synchronizing components and a second control signal in response to the absence of said synchronizing components for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing components; and control means coupled to said apparatus and responsive to said second control signal for inhibiting output of electrical signals from said apparatus.
Claim 11
Dependent Claim
44 words
A control system according to claim 8 wherein: said apparatus includes a pick-up arm operating in concert with said disc for detecting signal information on said disc; and said control means is coupled to said pick-up arm for inhibiting detection of said signal information.
Claim 12
Dependent Claim
18 words
A control system according to claim 8 wherein: said regularly recurring synchronizing components correspond to vertical synchronizing signals.
Claim 13
Dependent Claim
47 words
A control system according to claim 8 wherein: said apparatus includes a video output channel for providing said electrical signals; and said control means is operative upon said video output channel to permit output of signals from said video output channel in response to first control signals.
Claim 14
Dependent Claim
103 words
A control system for an image reproducing system comprising: apparatus for recovering electrical signals including varying image representative components and synchronizing components from information stored on a disc record; detecting means for providing a first control signal in response to the presence of said synchronizing components and a second control signal in response to an absence of said synchronziing components for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing components; and control means responsive to said second control signal for disabling said apparatus.
Claim 15
Dependent Claim
103 words
A control system for an image reproducing system comprising: apparatus for recovering electrical signals including varying image representative components and synchronizing components from information stored on a disc record; detecting means for providing a first control signal in response to the presence of said synchronizing components and a second control signal in response to an absence of said synchronziing components for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing components; and control means responsive to said second control signal for disabling said apparatus.
Claim 16
Dependent Claim
23 words
Apparatus according to claim 12 wherein said predetermined length of time corresponds to the interval required for three to eight consecutive synchronizing signals.
Claim 17
Dependent Claim
121 words
A control system for an image reproducing system comprising: a signal pick-up arm arranged for detecting signal information including image representative components and synchronizing components recorded on a disc record; means responsive to particular ones of said synchronizing components for providing a first control signal indicative of the presence of said particular synchronizing component and a second control signal in response to the absence of said particular synchronizing component for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing component; and control means coupled to said pick-up arm for disengaging signal pick-up by said arm in response to said second control signal.
Claim 18
Dependent Claim
121 words
A control system for an image reproducing system comprising: a signal pick-up arm arranged for detecting signal information including image representative components and synchronizing components recorded on a disc record; means responsive to particular ones of said synchronizing components for providing a first control signal indicative of the presence of said particular synchronizing component and a second control signal in response to the absence of said particular synchronizing component for a predetermined length of time, said predetermined length of time being greater than the time required to provide a first control signal upon the appearance of said synchronizing component; and control means coupled to said pick-up arm for disengaging signal pick-up by said arm in response to said second control signal.
Claim 19
Dependent Claim
51 words
The apparatus of claim 14 including signal separating means coupled to said pick-up arm for separating particular ones of said synchronizing components from others of said signal information; and delay means interposed between said responsive means and said control means for providing a predetermined delay to actuation of said control means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |