US3681575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape position marking and sensing device
Assignee: Individual
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Filing: 1969-07-22
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Granted: 1972-08-01
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Expires: 1989-07-22
Abstract
Abstract A tape recorder provided with a reversible predetermined electronic counter which functions to give a control signal used to stop the tape at a predetermined position.
Inventors
- 👤 Earnest C Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:10
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/11; G11B27/13; G11B15/00; G11B15/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
In combination with a tape recorder of the type that includes a rotatable tape reel and a solenoid actuated tape recorder function control, the improvement comprising an electronic pulse counter that includes means for selectively increasing and decreasing the count thereof on the feeding of electrical pulses thereto, said counter also including means for resetting the count thereof to a predetermined count, means operatively connected to the counter for energizing the solenoid upon the counter arriving at said predetermined count, and means having an operative connection to said tape reel for producing and feeding electrical pulses to the counter for counting as a function of rotation of the tape reel, whereby the tape recorder function control can be caused to be actuated upon the tape reel being rotatively restored to a position previously occupied thereby corresponding to the predetermined count of the counter.
Claim 2
Dependent Claim
143 words
In combination with a tape recorder of the type that includes a rotatable tape reel and a solenoid actuated tape recorder function control, the improvement comprising an electronic pulse counter that includes means for selectively increasing and decreasing the count thereof on the feeding of electrical pulses thereto, said counter also including means for resetting the count thereof to a predetermined count, means operatively connected to the counter for energizing the solenoid upon the counter arriving at said predetermined count, and means having an operative connection to said tape reel for producing and feeding electrical pulses to the counter for counting as a function of rotation of the tape reel, whereby the tape recorder function control can be caused to be actuated upon the tape reel being rotatively restored to a position previously occupied thereby corresponding to the predetermined count of the counter.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |