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US3684826A Expired / Lapsed US ⏱️ 0.0 years remaining

System for record medium control and editing

Assignee: RCA Corp
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Filing: 1970-01-29
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Granted: 1972-08-15
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Expires: 1990-01-29
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Abstract

Abstract A technique is disclosed for alleviating problems in manually and/or electronically splicing and editing video information on a record medium utilized in recorder-reproducer systems. The technique solves the dilemma between making the edit pulse rate low enough to define color frame rate, and making the edit pulse rate high enough for rapid capstan lock up. To accomplish this, dual frequency information which may take the form of the alternation of single pulses and pulse doublets on the control track is utilized.

Inventors

  • 👤 Robert Norman Hurst

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 20:31
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/02; G11B27/022; G11B27/024

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 192 words
The combination with a recorder reproducer system for transducing with a record medium video information including a plurality of frames, said system further including means for recording on said medium a control track signal, and a pulsed reference signal source, the pulses of said reference signal being correlated to said video information frames, comprising: second means coupled to said reference signal source for providing an output with a single pulse in response to certain ones of said reference pulses and pulse doublets in response to other ones of said reference pulses, said second means including third means responsive to said reference signal pulses for providing a train of pulses delayed from said reference pulses by a given amount, fourth means responsive to said reference signal pulses and the output of said third means for providing a signal comprising alternate output pulses of said third means, and fifth means for combining the output of said fourth means with said reference signal to provide from said second means said output with said single pulse and said pulse doublets, means for applying the output of said second means to said control track signal recording means.
Claim 2
Dependent Claim 192 words
The combination with a recorder reproducer system for transducing with a record medium video information including a plurality of frames, said system further including means for recording on said medium a control track signal, and a pulsed reference signal source, the pulses of said reference signal being correlated to said video information frames, comprising: second means coupled to said reference signal source for providing an output with a single pulse in response to certain ones of said reference pulses and pulse doublets in response to other ones of said reference pulses, said second means including third means responsive to said reference signal pulses for providing a train of pulses delayed from said reference pulses by a given amount, fourth means responsive to said reference signal pulses and the output of said third means for providing a signal comprising alternate output pulses of said third means, and fifth means for combining the output of said fourth means with said reference signal to provide from said second means said output with said single pulse and said pulse doublets, means for applying the output of said second means to said control track signal recording means.
Claim 3
Dependent Claim 199 words
The combination with a recorder reproducer system for transducing with a record medium video information including a plurality of frames, and means for playing back from said medium a control track signal recorded thereon, said control track signal having first and second dissimilar pulse components, each of said components defining different ones of said video information frames, said system further including means for controlling the transducing of said video and control track signals and means for providing controlled movement of said medium relative said signal transducing and playback means, comprising; further means coupled to said control track playback means and operable for providing in response to said dissimilar control track signal components, in a first mode thereof a first train of pulses corresponding to a first group of said video information frames, and in a second mode thereof providing a second train of pulses corresponding to a further group of said video information frames, said further group including the frames of said first group, and means for applying the output of said further means, to said video transducing control means during at least said first mode, and to said medium movement control means during at least said second mode.
Claim 4
Dependent Claim 199 words
The combination with a recorder reproducer system for transducing with a record medium video information including a plurality of frames, and means for playing back from said medium a control track signal recorded thereon, said control track signal having first and second dissimilar pulse components, each of said components defining different ones of said video information frames, said system further including means for controlling the transducing of said video and control track signals and means for providing controlled movement of said medium relative said signal transducing and playback means, comprising; further means coupled to said control track playback means and operable for providing in response to said dissimilar control track signal components, in a first mode thereof a first train of pulses corresponding to a first group of said video information frames, and in a second mode thereof providing a second train of pulses corresponding to a further group of said video information frames, said further group including the frames of said first group, and means for applying the output of said further means, to said video transducing control means during at least said first mode, and to said medium movement control means during at least said second mode.
Claim 5
Dependent Claim 95 words
The invention according to claim 2, and including a source of first and second pulsed frame reference signals, said first reference signal having substantially the frequency of the output of said further means in said first mode, with said second reference signal having substantially the frequency of the output of said further means in said second mode, and means for selectively applyinG to said medium movement control means said first reference signal when said further means is in its first mode and said second reference signal when said further means is in its second mode.
Claim 6
Dependent Claim 94 words
The invention according to claim 2, wherein said control track signal components include alternating single pulses and pulse doublets, said further means includes pulse generating means having a first input coupled to said control track signal playback means for providing an output from said control track signal in response to a second input to said pulse generating means, and means including switching for providing said second input to said pulse generating means to cause said generating means to provide a pulsed output timed with selected ones of said components of said control track signal.
Claim 7
Dependent Claim 86 words
The invention according to claim 4, wherein said further means includes second pulse generating means coupled to said first pulse generating means, said second pulse generating means including variable time constant means for altering the output period of said second pulse generating means in accordance with the mode of operation of said further means, third pulse generating means including second gating means for providing an output timed with portions of said control track signal in the presence of said output of said second pulse generating means.
Claim 8
Dependent Claim 167 words
In a recorder reproducer system including, means for providing controlled transducing with a record medium of a video signal having a plurality of information frames and means for providing controlled movement of said medium relative said transducing means, a method of selectively providing rapid lock up of said medium moving means or accurate location of said information frames, comprising the steps: generating a composite pulse signal comprising an alternation of single pulse and pulse doublet components correlated to said information frames; recording said composite signal on a control track of said medium in relation to said video signal; recovering said composite signal from said medium; generating a pulsed output signal in response to said recovered signal, said output in a first mode being timed with one of said components of said composite signal, and in a second mode said output being timed with both of said components of said composite signal; and applying said output signal to said medium movement control means and said transducing control means.
Claim 9
Dependent Claim 167 words
In a recorder reproducer system including, means for providing controlled transducing with a record medium of a video signal having a plurality of information frames and means for providing controlled movement of said medium relative said transducing means, a method of selectively providing rapid lock up of said medium moving means or accurate location of said information frames, comprising the steps: generating a composite pulse signal comprising an alternation of single pulse and pulse doublet components correlated to said information frames; recording said composite signal on a control track of said medium in relation to said video signal; recovering said composite signal from said medium; generating a pulsed output signal in response to said recovered signal, said output in a first mode being timed with one of said components of said composite signal, and in a second mode said output being timed with both of said components of said composite signal; and applying said output signal to said medium movement control means and said transducing control means.
Claim 10
Dependent Claim 215 words
In a recorder reproducer system having, first means for transducing to and from a record medium a video signal including a plurality of information frames, second means for transducing with said medium at least one other signal, means for controlling the transducing of said first and second means and means for moving said medium relative to said transducing means, the combination comprising: means for generating a composite control signal having first and second dissimilar components with said components being spaced in time by an interval related to the time interval between said video information frames; means for applying said control signal to said second transducing means in a manner correlating the occurrence of said first and second components with different ones of said video information frames on said record medium; further means coupled to said second transducing means and operable to recover said control signal from said record medium; means coupled to said further means and responsive to said control signal for providing a first output comprising said first component of said control signal, and for providing a second output comprising said first and said second components of said control signal; means for applying said first output to said transducing control means; and means for applying said second output to said record medium moving means.
Claim 11
Dependent Claim 215 words
In a recorder reproducer system having, first means for transducing to and from a record medium a video signal including a plurality of information frames, second means for transducing with said medium at least one other signal, means for controlling the transducing of said first and second means and means for moving said medium relative to said transducing means, the combination comprising: means for generating a composite control signal having first and second dissimilar components with said components being spaced in time by an interval related to the time interval between said video information frames; means for applying said control signal to said second transducing means in a manner correlating the occurrence of said first and second components with different ones of said video information frames on said record medium; further means coupled to said second transducing means and operable to recover said control signal from said record medium; means coupled to said further means and responsive to said control signal for providing a first output comprising said first component of said control signal, and for providing a second output comprising said first and said second components of said control signal; means for applying said first output to said transducing control means; and means for applying said second output to said record medium moving means.
Claim 12
Dependent Claim 187 words
In a playback system having first means for transducing from a record medium a video signal including a plurality of information frames, said record medium also having recorded thereon a control signal having first and second dissimilar components with said components being spaced in time by an interval related to the time interval between said video information frames, and said first and second of said control signal components being correlated with different ones of said video information frames on said medium, the combination comprising; further means including second transducing means for cooperating with said record medium to recover said control signal therefrom, means for controlling said first and second transducing means, means for moving said medium relative to said transducing means, means coupled to said further means and responsive to said control signal for providing a first output comprising said first component of said control signal, and for providing a second output comprising said first and said second components of said control signal, means for applying said first output to said transducing control means, and means for applying said second output to said record medium moving means.
Claim 13
Dependent Claim 187 words
In a playback system having first means for transducing from a record medium a video signal including a plurality of information frames, said record medium also having recorded thereon a control signal having first and second dissimilar components with said components being spaced in time by an interval related to the time interval between said video information frames, and said first and second of said control signal components being correlated with different ones of said video information frames on said medium, the combination comprising; further means including second transducing means for cooperating with said record medium to recover said control signal therefrom, means for controlling said first and second transducing means, means for moving said medium relative to said transducing means, means coupled to said further means and responsive to said control signal for providing a first output comprising said first component of said control signal, and for providing a second output comprising said first and said second components of said control signal, means for applying said first output to said transducing control means, and means for applying said second output to said record medium moving means.

References Cited (Backward Citations)

US3048831A Cited
US3017462A Cited
US3277246A Cited
US3440340A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-15 1976-02-14 1976-08-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-15 1980-02-14 1980-08-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-15 1984-02-14 1984-08-15 $7700.00 Window Closed / Lapsed

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