US4017719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binary rate multiplier with means for spacing output signals
Assignee: RCA Corp
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Filing: 1975-12-18
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Granted: 1977-04-12
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Expires: 1995-12-18
Abstract
Abstract Circuit and method for spacing the output signals from a binary rate multiplier by adjusting the rate of the internal clock of the binary rate multiplier to a value approximating (N+1) times f 0 where N represents the multiplier of the input frequency f 0 . The output signals thereby produced are substantially evenly spaced at a rate N times f 0 .
Inventors
- 👤 Gerald Stanley Kaplan
- 👤 Andrew David Ritzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:14
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; G06F7/68
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
158 words
In a binary rate multiplier for producing N times f 0 output signals, of the type having first input means for receiving signals representing the value of N, second input means for receiving signals at a rate f 0 , programmable divide-by-N means preset to said value of N from said first input means by said second input signal means and responsive to said output signals for producing a carry signal after N output signals have been counted, clocking means for producing clocking signals at a rate f c not less than N MAX times f 0 , where N MAX is the maximum value of N, and gating means responsive to said carry signal for passing N clocking signals for each signal from said second input means, the improvement comprising: clock adjustment means responsive to the N value and to the rate f 0 for adjusting the clock signal rate to approximately (N+1) times f 0 .
Claim 2
Dependent Claim
158 words
In a binary rate multiplier for producing N times f 0 output signals, of the type having first input means for receiving signals representing the value of N, second input means for receiving signals at a rate f 0 , programmable divide-by-N means preset to said value of N from said first input means by said second input signal means and responsive to said output signals for producing a carry signal after N output signals have been counted, clocking means for producing clocking signals at a rate f c not less than N MAX times f 0 , where N MAX is the maximum value of N, and gating means responsive to said carry signal for passing N clocking signals for each signal from said second input means, the improvement comprising: clock adjustment means responsive to the N value and to the rate f 0 for adjusting the clock signal rate to approximately (N+1) times f 0 .
Claim 3
Dependent Claim
80 words
The invention as claimed in claim 1 wherein said clock adjustment means includes first divider means responsive to said first and second input means and said clocking means for producing an output signal at a rate represented by f c divided by (N+1) times f 0 ; and second divider means responsive to said clocking means and the output signal from said first divider means for producing an output signal at a rate represented by (N+1) times f 0 .
Claim 4
Dependent Claim
44 words
The invention as claimed in claim 2 wherein said first divider means includes a divide-by-(N+1) means responsive to said clocking means and said first and second input means for counting clock signals during a single period of said second input signal f 0 .
Claim 5
Dependent Claim
75 words
The invention as claimed in claim 3 wherein said second divider means comprises first counter means for counting the output signals from said divide-by-(N+1) means during one period of said second input signal f 0 ; and second counter means responsive to a count value in said first counter and to said clocking means for producing an output signal at each K-th pulse clocking signal, where K is the value stored in said first counter.
Claim 6
Independent Claim
83 words
A method for producing substantially evenly spaced output signals from a binary rate multiplier comprising the steps of: producing maximum desired rate clock pulses; storing a value N representing the frequency multiplier; adjusting the rate of said clock pulses to a value approximating (N+1) times f 0 , the rate of the signals to be multiplied; and controlling an output signal gating means with the adjusted clock pulses; enabling the output gating means for N output pulses for each signal to be multiplied.
Claim 7
Independent Claim
83 words
A method for producing substantially evenly spaced output signals from a binary rate multiplier comprising the steps of: producing maximum desired rate clock pulses; storing a value N representing the frequency multiplier; adjusting the rate of said clock pulses to a value approximating (N+1) times f 0 , the rate of the signals to be multiplied; and controlling an output signal gating means with the adjusted clock pulses; enabling the output gating means for N output pulses for each signal to be multiplied.
Claim 8
Dependent Claim
69 words
The invention as claimed in claim 5 wherein the steps of adjusting the rate of said clock pulses includes the steps of: dividing the maximum rate of clock pulses by the rate of the signal to be multiplied to produce a first quotient; dividing the first quotient by a value of (N+1) to produce a second quotient; and dividing the maximum rate of clock pulses by the second quotient.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |