US3601706A
Expired / Lapsed
US
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Pulse interval decoder
Assignee: Cutler Hammer Inc
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Filing: 1970-03-02
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Granted: 1971-08-24
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Expires: 1990-03-02
Abstract
Abstract A system for determining the average length of intervals between pulses in a finite train, including a pulse counter, two alternately operating interval timing devices, an arithmetic divider, and storage and logic circuits. An interval-adaptive track gate arrangement provides discrimination against spurious pulse intervals.
Inventors
- 👤 Frederick H Battle Jr
- 👤 Edward Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:29
CPC Classifications
G; G04; G04F; G04F10/00; G04F10/04; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
In a system wherein the lengths of the minor intervals between pulses in each finite train of pulses in a series of such trains represent respective values of quantitative data, apparatus for determining the average value of the data represented by each such train, comprising: a. interval measuring means for producing a representation of a data-significant component of each of said minor intervals in succession, b. an accumulator adapted to receive said successively produced data-significant representations and produce an output representing the sum of said measured interval components of the current train; c. A data counter responsive to said pulses for producing an output representing total number of measured interval components of the current train, and d. an arithmetic divider device responsive to the outputs of said accumulator and said counter to produce a quotient output.
Claim 2
Dependent Claim
136 words
In a system wherein the lengths of the minor intervals between pulses in each finite train of pulses in a series of such trains represent respective values of quantitative data, apparatus for determining the average value of the data represented by each such train, comprising: a. interval measuring means for producing a representation of a data-significant component of each of said minor intervals in succession, b. an accumulator adapted to receive said successively produced data-significant representations and produce an output representing the sum of said measured interval components of the current train; c. A data counter responsive to said pulses for producing an output representing total number of measured interval components of the current train, and d. an arithmetic divider device responsive to the outputs of said accumulator and said counter to produce a quotient output.
Claim 3
Dependent Claim
46 words
The invention set forth in claim 1, wherein said interval measuring means includes two timers, and means responsive to said pulses to stop one of said timers and coincidentally start the other, whereby said timers operate in uninterrupted alternation during said measurements of said minor intervals.
Claim 4
Dependent Claim
79 words
The invention set forth in claim 2, wherein one of said timers is adapted to measure a predetermined interval of length no longer than the shortest expected minor interval between pulses and produce an output signal at the end of such predetermined interval, and the other timer is adapted to measure the remaining portion of a minor interval between pulses, further including means responsive to said output signal produced by said first mentioned timer to start said other timer.
Claim 5
Dependent Claim
119 words
The invention set forth in claim 1, further including a. buffer means, b. first transfer gate means responsive to each pulse defining the end of a minor interval to transfer a representation of the most recently measured interval component from said interval measuring means to said buffer c. second transfer gate means for adding the contents of said buffer means to the contents of said accumulator, d. timing means for producing a control signal in response to the passage of an interval substantially longer than the longest expected minor interval following the most recent pulse, and e. means responsive to said control signal or to the next subsequent pulse, whichever occurs first, to enable said second transfer gate means.
Claim 6
Dependent Claim
110 words
The invention set forth in claim 4, further including a. comparator means including means for producing a representation of the interval component currently being measured and responsive to said last mentioned representation and to said representation stored in said buffer to produce a track gate trigger signal upon the approach to approximate equivalence between said representations, b. means responsive to said track gate trigger signal to iniTiate a track gate signal, and c. means including a track gate responsive to said track gate signal to prevent application of a pulse to said first transfer gate means except upon the concurrent presence of an input pulse and said track gate signal.
Claim 7
Dependent Claim
131 words
The invention set forth in claim 4, wherein said comparator is responsive to said interval component representations to produce a track failure signal in the absence of output from said track gate means within a predetermined time following initiation of said track gate signal, further including a. means responsive to said track failure signal to terminate said track gate signal, b. track status storage means responsive to the first pulse in a respective train that appears as output from said track gate means to assume a track status condition that is sustained at least as long as the current pulse train continues, and c. means responsive to the presence of a track status condition in the absence of a track gate signal to prevent operation of said first transfer gate means.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |