US4277646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for resetting data sets
Assignee: AT&T Inc
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Filing: 1979-08-24
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Granted: 1981-07-07
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Expires: 1999-08-24
Abstract
Abstract A method and apparatus is disclosed for resetting a data set having a lamp for indicating the completion of a communication between a telephone and a computer or data terminal. The apparatus includes an integrated circuit and associated discrete electronic components that provide photodetection and multivibrator circuits. Signals from the photodetection and multivibrator circuits are transmitted through a logic gate to the data terminal ready lead of the data set so as to reset the data set whenever the lamp is energized.
Inventors
- 👤 Terry L. Sams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:21
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04M11/066
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
93 words
A method of resetting a data set coupling a telephone with a computer or with a data terminal of the type having light signaling means for signaling the completion of a communication and reset terminal means for receiving a data set reset signal upon completion of the communication, and with the reset method comprising the steps of generating an oscillatory electrical signal; monitoring the data set light signaling means; and applying the oscillatory electrical signal to the data set reset terminal means when the light signaling means signals the completion of a communication.
Claim 2
Independent Claim
93 words
A method of resetting a data set coupling a telephone with a computer or with a data terminal of the type having light signaling means for signaling the completion of a communication and reset terminal means for receiving a data set reset signal upon completion of the communication, and with the reset method comprising the steps of generating an oscillatory electrical signal; monitoring the data set light signaling means; and applying the oscillatory electrical signal to the data set reset terminal means when the light signaling means signals the completion of a communication.
Claim 3
Dependent Claim
155 words
Apparatus for resetting a data set having terminal means for coupling with a telephone and with a computer or data terminal, light signaling means for signaling completion of a communication between the telephone and the computer or data terminal, and reset terminal means for receiving a data set reset signal upon completion of a communication, and with said reset apparatus comprising, in combination, a logic gate having at least two input leads and an output lead adapted to be operatively coupled with the data set reset terminal means; means for detecting light from the data set light signaling means of an intensity in excess of a selected threshold; means for applying an oscillatory electrical signal to one of said logic gate input leads; and means for applying a logic signal to the other of said logic gate input leads in response to the detection of light of an intensity in excess of said selected threshold.
Claim 4
Dependent Claim
155 words
Apparatus for resetting a data set having terminal means for coupling with a telephone and with a computer or data terminal, light signaling means for signaling completion of a communication between the telephone and the computer or data terminal, and reset terminal means for receiving a data set reset signal upon completion of a communication, and with said reset apparatus comprising, in combination, a logic gate having at least two input leads and an output lead adapted to be operatively coupled with the data set reset terminal means; means for detecting light from the data set light signaling means of an intensity in excess of a selected threshold; means for applying an oscillatory electrical signal to one of said logic gate input leads; and means for applying a logic signal to the other of said logic gate input leads in response to the detection of light of an intensity in excess of said selected threshold.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-06 | 1985-01-05 | 1985-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-06 | 1989-01-05 | 1989-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-06 | 1993-01-05 | 1993-07-07 | $7700.00 | Window Closed / Lapsed |