US3723666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for distinguishing pauses in recorded features during replay thereof
Assignee: Bell and Howell Co
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Filing: 1971-03-23
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Granted: 1973-03-27
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Expires: 1991-03-23
Abstract
Abstract Recorded features having pauses between features and pauses during features are selectively replayed from a recording medium. The recording medium is selectively advanced at a first speed and pauses between features as well as pauses during features are picked up. Alternatively, the recording medium is advanced at a second speed and pauses between features as well as pauses during features are picked up. The pauses between features picked up during advancement of the recording medium at the first speed or at the second speed are distinguished from pauses during features picked up during advancement of the recording medium at the first speed or at the second speed, and a predetermined signal is provided only in response to each pause between features picked up during advancement of the recording medium at the first speed or at the second speed. The selective replay of recorded features is controlled with the aid of that predetermined signal.
Inventors
- 👤 L Ferrari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:24
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/22; G11B15/00; G11B15/005; G11B15/02; G11B15/05; G11B15/06; G11B15/16; G11B15/18; G11B15/44; G11B15/442
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
309 words
In a method of selectively replaying from a recording medium recorded features having pauses between features and pauses during features, with each of said pauses between features being longer than any of said pauses during features, the improvement comprising in combination the steps of: selectively advancing said recording medium at a first speed and picking up at least one of said pauses between features in a period of time having a first duration, and picking up at least one of said pauses during features in a period of time having a second duration being shorter than said first duration; selectively advancing said recording medium at a second speed being Higher than said first speed and picking up at least one other of said pauses between features in a period of time having a third duration being substantially equal to said second duration and picking up at least one of said pauses during features in a period of time having a fourth duration being shorter than said third duration; distinguishing any pauses picked up during advancement of said recording medium at said first speed in a period of time having said first duration and any pauses picked up during advancement of said recording medium at said second speed in a period of time having said third duration substantially equal to said second duration from any pause picked up during advancement of said recording medium at said first speed in a period of time having said second duration and from any pause picked up during advancement of said recording medium at said second speed in a period of time having said fourth duration, and providing a signal having a predetermined signal characteristic only in response to each picked-up pause between features; and controlling a selective replay of said recorded features with the aid of said signal having said predetermined signal characteristic.
Claim 2
Dependent Claim
309 words
In a method of selectively replaying from a recording medium recorded features having pauses between features and pauses during features, with each of said pauses between features being longer than any of said pauses during features, the improvement comprising in combination the steps of: selectively advancing said recording medium at a first speed and picking up at least one of said pauses between features in a period of time having a first duration, and picking up at least one of said pauses during features in a period of time having a second duration being shorter than said first duration; selectively advancing said recording medium at a second speed being Higher than said first speed and picking up at least one other of said pauses between features in a period of time having a third duration being substantially equal to said second duration and picking up at least one of said pauses during features in a period of time having a fourth duration being shorter than said third duration; distinguishing any pauses picked up during advancement of said recording medium at said first speed in a period of time having said first duration and any pauses picked up during advancement of said recording medium at said second speed in a period of time having said third duration substantially equal to said second duration from any pause picked up during advancement of said recording medium at said first speed in a period of time having said second duration and from any pause picked up during advancement of said recording medium at said second speed in a period of time having said fourth duration, and providing a signal having a predetermined signal characteristic only in response to each picked-up pause between features; and controlling a selective replay of said recorded features with the aid of said signal having said predetermined signal characteristic.
Claim 3
Dependent Claim
85 words
A method as claimed in claim 1, wherein: said signal having said predetermined signal characteristic is provided with the aid of electrically chargeable signal producing means; said electrically chargeable signal producing means is provided during advancement of said recording medium at said first speed with a first time constant corresponding substantially to said first duration; and said electrically chargeable signal producing means is provided during advancement of said recording medium at said second speed with a second time constant corresponding substantially to said third duration.
Claim 4
Dependent Claim
85 words
A method as claimed in claim 1, wherein: said signal having said predetermined signal characteristic is provided with the aid of electrically chargeable signal producing means; said electrically chargeable signal producing means is provided during advancement of said recording medium at said first speed with a first time constant corresponding inversely to said first speed; and said electrically chargeable signal producing means is provided during advancement of said recording medium at said second speed with a second time constant corresponding inversely to said second speed.
Claim 5
Independent Claim
366 words
A method of selectively replaying from a recording medium recorded features having pauses between features and pauses during features, with each of said pauses between features being longer than any of said pauses during features, comprising in combination the steps of: selectively advancing said recording medium at a playback speed and picking up at least one of said pauses between features in a period of time having a first duration, and picking up at least one of said pauses during features in a period of time having a second duration being shorter than said first duration; alternatively advancing said recording medium at fast forward speed being higher than said playback speed and picking up at least one of said pauses between features in a period of time having a third duration being substantially equal to said second duration, and picking up at least one of said pauses during features in a period of time having a fourth duration being shorter than said third duration; distinguishing any pause picked up during advancement of said recording medium at said playback speed in a period of time having said first duration and any pause picked up during advancement of said recording medium at said fast forward speed in a period of time having said third duration substantially equal to said second duration having any pause picked up during advancement of said recording medium at said playback speed in a period of time having said second duration and from any pause picked up during advancement of said recording medium at said fast forward speed in a period of time havIng said fourth duration, and providing a signal having a predetermined signal characteristic only in response to each pause between features picked up during advancement of said recording medium at said playback speed and in response to each pause between features picked up during advancement of said recording medium at said fast forward speed; controlling the selective advancement of said recording medium at said playback speed and at said fast forward speed with the aid of said signal having said predetermined signal characteristic; and replaying recorded features from said recording medium during advancement of said recording medium at said playback speed.
Claim 6
Independent Claim
366 words
A method of selectively replaying from a recording medium recorded features having pauses between features and pauses during features, with each of said pauses between features being longer than any of said pauses during features, comprising in combination the steps of: selectively advancing said recording medium at a playback speed and picking up at least one of said pauses between features in a period of time having a first duration, and picking up at least one of said pauses during features in a period of time having a second duration being shorter than said first duration; alternatively advancing said recording medium at fast forward speed being higher than said playback speed and picking up at least one of said pauses between features in a period of time having a third duration being substantially equal to said second duration, and picking up at least one of said pauses during features in a period of time having a fourth duration being shorter than said third duration; distinguishing any pause picked up during advancement of said recording medium at said playback speed in a period of time having said first duration and any pause picked up during advancement of said recording medium at said fast forward speed in a period of time having said third duration substantially equal to said second duration having any pause picked up during advancement of said recording medium at said playback speed in a period of time having said second duration and from any pause picked up during advancement of said recording medium at said fast forward speed in a period of time havIng said fourth duration, and providing a signal having a predetermined signal characteristic only in response to each pause between features picked up during advancement of said recording medium at said playback speed and in response to each pause between features picked up during advancement of said recording medium at said fast forward speed; controlling the selective advancement of said recording medium at said playback speed and at said fast forward speed with the aid of said signal having said predetermined signal characteristic; and replaying recorded features from said recording medium during advancement of said recording medium at said playback speed.
Claim 7
Dependent Claim
75 words
A method as claimed in claim 4, wherein: said selective advancement of said recording medium is controlled by providing an adjustable indication of a preselection of features desired for replay, effecting a sensing of said adjustable indication in response to each signal having said predetermined signal characteristic, and controlling the selective advancement of said recording medium at said playback speed and at said fast forward speed in response to said sensing and said adjustable indication.
Claim 8
Dependent Claim
86 words
A method as claimed in claim 4, wherein: said signal having said predetermined signal characteristic is provided with the aid of electrically chargeable signal producing means; said electrically chargeable signal producing means is provided during advancement of said recording medium at said playback speed with a first time constant corresponding substantially to said first duration; and said electrically chargeable signal producing means is providing during advancement of said recording medium at said fast forward speed with a second time constant corresponding substantially to said third duration.
Claim 9
Dependent Claim
180 words
A method as claimed in claim 4, wherein: said fast forward speed is increased as the advancement of said recording medium progresses; said signal having said predetermined characteristic is provided with the aid of electrically chargeable signal producing means; said electrically chargeable signal producing means is provided during advancement of said recording medium at said playback speed with a first time constant corresponding substantially to said first duration; said electrically chargeable signal producing means is provided during advancement of said recording medium at an initial fast forward speed with a second time constant corresponding substantially to the duration of a period of time during which pauses between features are picked up while said recording medium is advanced at said initial fast forward speed; and said electrically chargeable signal producing means is provided during advancement of said recording medium at an increased fast forward speed with a third time constant corresponding substantially to the duration of a further period of time during which pauses between features are picked up while said recording medium is advanced at said increased fast forward speed.
Claim 10
Dependent Claim
92 words
A method as claimed in claim 7, wherein: said features are serially recorded on said recording medium and are selectively replayed at playback speed and alternatively bypassed at fast forward speed; said electrically chargeable signal producing means is provided with said second time constant during bypass at fast forward speed of at least one initial feature of said serially recorded features; and said electrically chargeable signal producing means is provided with said third time constant during bypass at fast forward speed of at least one advanced features of said serially recorded features.
Claim 11
Dependent Claim
363 words
In a method of selectively replaying from a recording medium advancing at a playback speed recorded features having pauses between features and pauses during features, with each of said pauses between features being longer than any of said pauses during features, the improvement comprising in combination the steps of: selectively advancing said reCording medium at a first fast forward speed being higher than said playback speed and picking up at least one of said pauses between features in a period of time having a first duration, and picking up at least one of said pauses during features in a period of time having a second duration being shorter than said first duration; subsequently advancing said recording medium at a medium fast forward speed being higher than said first fast forward speed and picking up at least one other of said pauses between features in a period of time having a third duration being substantially equal to said second duration, and picking up at least one of said pauses during features in a period of time having a fourth duration being shorter than said third duration; distinguishing any pauses picked up during advancement of said recording medium at said first fast forward speed in a period of time having said first duration and any pause picked up during advancement of said recording medium at said second fast forward speed in a period of time having said third duration substantially equal to said second duration from any pause picked up during advancement of said recording medium at said first fast forward speed in a period of time having said second duration and from any pause picked up during advancement of said recording medium at said second fast forward speed in a period of time having said fourth duration, and providing a signal having a predetermined signal characteristic only in response to each picked-up pause between features; controlling the advancement of said recording medium at said playback speed and selectively at either of said fast forward speeds with the aid of said signal having said predetermined signal characteristic; and replaying recorded features from said recording medium during advancement of said recording medium at said playback speed.
Claim 12
Dependent Claim
363 words
In a method of selectively replaying from a recording medium advancing at a playback speed recorded features having pauses between features and pauses during features, with each of said pauses between features being longer than any of said pauses during features, the improvement comprising in combination the steps of: selectively advancing said reCording medium at a first fast forward speed being higher than said playback speed and picking up at least one of said pauses between features in a period of time having a first duration, and picking up at least one of said pauses during features in a period of time having a second duration being shorter than said first duration; subsequently advancing said recording medium at a medium fast forward speed being higher than said first fast forward speed and picking up at least one other of said pauses between features in a period of time having a third duration being substantially equal to said second duration, and picking up at least one of said pauses during features in a period of time having a fourth duration being shorter than said third duration; distinguishing any pauses picked up during advancement of said recording medium at said first fast forward speed in a period of time having said first duration and any pause picked up during advancement of said recording medium at said second fast forward speed in a period of time having said third duration substantially equal to said second duration from any pause picked up during advancement of said recording medium at said first fast forward speed in a period of time having said second duration and from any pause picked up during advancement of said recording medium at said second fast forward speed in a period of time having said fourth duration, and providing a signal having a predetermined signal characteristic only in response to each picked-up pause between features; controlling the advancement of said recording medium at said playback speed and selectively at either of said fast forward speeds with the aid of said signal having said predetermined signal characteristic; and replaying recorded features from said recording medium during advancement of said recording medium at said playback speed.
Claim 13
Dependent Claim
78 words
A method as claimed in claim 9, wherein: said selective advancement of said recording medium is controlled by providing an adjustable indication of a preselection of features desired for replay, effecting a sensing of said adjustable indication in response to each signal having said predetermined signal characteristic, and controlling the selective advancement of said recording medium at said playback speed and selectively at either of said fast forward speeds in response to said sensing of said adjustable indication.
Claim 14
Dependent Claim
88 words
A method as claimed in claim 9, wherein: said signal having said predetermined signal characteristic is provided with the aid of electrically chargeable signal producing means; said electrically chargeable signal producing means is provided during advancement of said recording medium at said first forward speed with a first time constant corresponding substantially to said first duration; and said electrically chargeable signal producing means is provided during advancement of said recording medium at said second fast forward speed with a second time constant corresponding substantially to said third duration.
Claim 15
Dependent Claim
95 words
A method as claimed in claim 11, wherein: said features are serially recorded on said recording medium and are selectively replayed at playback speed and alternatively bypassed at either of said fast forward speeds; said electrically chargeable signal producing means is provided with said first time constant during bypass of at least one of said serially recorded features at said first fast forward speed; and said electrically chargeable signal producing means is provided with said second time constant during bypass of at least another of said serially recorded features at said second fast forward speed.
References Cited (Backward Citations)
US3444541A
Cited
US3588855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |