US4127823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmable controller
Assignee: Individual
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Filing: 1977-02-23
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Granted: 1978-11-28
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Expires: 1997-02-23
Abstract
Abstract A single digitally programmable divide by "N" counter controls a timing sequence composed of a plurality of timed intervals. Each interval in the sequence is independent of the other intervals even though the same programmable divide by N counter is used to control the length of each interval. The completely digital controller automatically reprograms itself in a predetermined manner for each interval in a sequence. A single clock circuit provides the interval lengths typically ranging from milliseconds to hundreds of hours for the controlled intervals. The output from the controller is a repetitive series of "1"s and "0"s of the adjustable timed durations.
Inventors
- 👤 R. Jack Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:01
CPC Classifications
G; G04; G04G; G04G15/00; G04G15/006; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07; H; H03; H03K; H03K17/00; H03K17/296
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
175 words
An immediately reprogrammable programmable controller for providing a determinable sequence consisting of a determined number of adjustable determined time intervals comprising: a. a clock circuit having a continuous running oscillator and resettable dividers providing a plurality of resettable continuous determined time intervals in units and fractions thereof of seconds, minutes and hours; b. a plurality of adjustable switches for setting determined decimal time intervals in units of seconds, minutes and hours and providing a binary coded decimal output; c. a plurality of and/or select gate circuits cooperating with the said switches; d. a number of intervals select switch for setting the said number of time intervals; e. means including a programmable divide by N counter cooperating with the said and/or select gate circuits, the said clock, and the said number of intervals select switch to provide a sequential output signal corresponding to the said decimal time intervals set in the said adjustable switches; and f. means cooperating with the said programmable divide by N counter for resetting the said resettable dividers of the clock circuit.
Claim 2
Dependent Claim
175 words
An immediately reprogrammable programmable controller for providing a determinable sequence consisting of a determined number of adjustable determined time intervals comprising: a. a clock circuit having a continuous running oscillator and resettable dividers providing a plurality of resettable continuous determined time intervals in units and fractions thereof of seconds, minutes and hours; b. a plurality of adjustable switches for setting determined decimal time intervals in units of seconds, minutes and hours and providing a binary coded decimal output; c. a plurality of and/or select gate circuits cooperating with the said switches; d. a number of intervals select switch for setting the said number of time intervals; e. means including a programmable divide by N counter cooperating with the said and/or select gate circuits, the said clock, and the said number of intervals select switch to provide a sequential output signal corresponding to the said decimal time intervals set in the said adjustable switches; and f. means cooperating with the said programmable divide by N counter for resetting the said resettable dividers of the clock circuit.
Claim 3
Dependent Claim
21 words
The apparatus as claimed in claim 1 wherein the said means for resetting the resettable dividers includes a one shot multivibrator.
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) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |