US3882404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timing device with pulse splitting feedback
Assignee: CAE Link Corp
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Filing: 1973-11-29
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Granted: 1975-05-06
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Expires: 1993-11-29
Abstract
Abstract A gate provides a train of gated pulses in response to input pulses to advance the early stages of a counter. A feedback loop from the counter to the gate temporarily disables the gate at predetermined count conditions. The temporary disablement causes the instance input pulse to be split into two gated pulses of shorter duration. The counter advances twice in response to each split input pulse. The early stages of the counter thus generate a lower frequency timing signal having a basic period equal to the sum of the periods of a predetermined number of gated pulses (whole input pulses plus split input pulses). The ratio of input pulses to gated pulses is determined by which stage or stages feed back to disable the counter. The latter stages of the counter advance in response to the basic timing signal to provide timing signals having periods which are multiples of the basic period.
Inventors
- 👤 Reynold W Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:49
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; G06F7/68; G08; G08G; G08G1/00; G08G1/07; H; H03; H03K; H03K23/00; H03K23/64; H03K23/66; H03K23/662
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
214 words
A device for converting a periodic input signal into a periodic output signal having a period which is equal to the sum of the periods of a predetermined number of input signals, comprising: a gate circuit having at least two inputs, one of which is adapted to receive the input signals for passing the input signals through the gate to provide periodic gated pulses; a counter which advances in response to the gated pulses for counting the gated pulses and providing the output signal; feedback means connected to the other input of the gate circuit and responsive to the count condition of the counter for periodically temporarily disabling the gate circuit while an input pulse is passing there though causing a hiatus period in the input pulse during the temporary disabling preceded by a first pulse portion and followed by a last pulse portion, both pulse portions of the input pulse being counted by the counter causing an extra count in the counter for each temporary disabling; a first delay means within the feedback means for delaying the feedback of the counter count condition to the gate circuit for defining the width of the first pulse portion; and a second delay means within the feedback means for defining the width of the hiatus period.
Claim 2
Independent Claim
214 words
A device for converting a periodic input signal into a periodic output signal having a period which is equal to the sum of the periods of a predetermined number of input signals, comprising: a gate circuit having at least two inputs, one of which is adapted to receive the input signals for passing the input signals through the gate to provide periodic gated pulses; a counter which advances in response to the gated pulses for counting the gated pulses and providing the output signal; feedback means connected to the other input of the gate circuit and responsive to the count condition of the counter for periodically temporarily disabling the gate circuit while an input pulse is passing there though causing a hiatus period in the input pulse during the temporary disabling preceded by a first pulse portion and followed by a last pulse portion, both pulse portions of the input pulse being counted by the counter causing an extra count in the counter for each temporary disabling; a first delay means within the feedback means for delaying the feedback of the counter count condition to the gate circuit for defining the width of the first pulse portion; and a second delay means within the feedback means for defining the width of the hiatus period.
Claim 3
Dependent Claim
13 words
The device of claim 1 wherein the second delay means is a capacitor.
Claim 4
Dependent Claim
11 words
The device of claim 2, wherein both delay means are capacitors.
Claim 5
Dependent Claim
49 words
The device of claim 1, wherein: the counter has an input portion responsive to the gated pulses from the gate circuit; the counter has an output portion for providing the output signal; and the feedback means is responsive to the count condition in the input portion of the counter.
Claim 6
Dependent Claim
56 words
The device of claim 4, wherein the output portion of the counter provides a base period output the period of which is equal to the sum of the periods of a predetermined number of input signals; and wherein the output portion of the counter provides additional outputs having periods equal to multiples of the base period.
Claim 7
Dependent Claim
22 words
The device of claim 5, wherein the input portion and output portion of the counter each has a plurality of bistable stages.
Claim 8
Dependent Claim
63 words
The device of claim 6, wherein: the feedback means is formed by electrical communication from at least the last stage of the input portion of the counter to the gate circuit; the first stage of the output portion of the counter provides the base period output; and the other stages of the output portion of the counter provides the multiple base period output.
Claim 9
Dependent Claim
33 words
The device of claim 6, wherein the feedback means is formed by electrical communication from a plurality of the plurality of stages of the input portion of the counter to the gate circut.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |