US3696306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coherent jump frequency synthesizer
Assignee: Motorola Solutions Inc
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Filing: 1970-06-05
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Granted: 1972-10-03
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Expires: 1990-06-05
Abstract
Abstract Means are provided to produce an output wave whose frequency may jump from one value to a very different frequency at a high jump rate, the phase of the produced jump frequency wave being unambiguous and predictable.
Inventors
- 👤 Arthur J Kline Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:26
CPC Classifications
H; H03; H03B; H03B21/00; H03B21/01; H03B21/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
256 words
Apparatus for producing a coherent wave which may jump in frequency to and from the different frequencies in a wave band comprising: a wave source having a given frequency, a first voltage controlled oscillator, a first frequency multiplier, a first phase detector, a first modulator, means for applying the wave of said source to said multiplier and to said phase detector, means to apply the output of said phase detector to said voltage controlled oscillator, means to apply the output of said voltage controlled oscillator and of said frequency multiplier to said modulator, means to apply one output of said modulator to said phase detector, the difference in frequencies of the two inputs to said modulator being equal to said given frequency whereby the output of said voltage controlled oscillator is in fixed relation phase with respect to said given frequency, a second phase detector, a second voltage controlled oscillator, a second modulator, means for applying the wave of said given frequency to said second phase detector, means for applying the output of said second phase detector to said second voltage controlled oscillator, means for applying the wave produced by said first and second voltage controlled oscillators to said second modulator, and means for applying the output of said second modulator to said second phase detector, the frequency of the wave produced by said first and second voltage controlled oscillators being different and their difference in frequency being equal to said given frequency whereby said waves produced by said second voltage controlled oscillator are also coherent.
Claim 2
Dependent Claim
256 words
Apparatus for producing a coherent wave which may jump in frequency to and from the different frequencies in a wave band comprising: a wave source having a given frequency, a first voltage controlled oscillator, a first frequency multiplier, a first phase detector, a first modulator, means for applying the wave of said source to said multiplier and to said phase detector, means to apply the output of said phase detector to said voltage controlled oscillator, means to apply the output of said voltage controlled oscillator and of said frequency multiplier to said modulator, means to apply one output of said modulator to said phase detector, the difference in frequencies of the two inputs to said modulator being equal to said given frequency whereby the output of said voltage controlled oscillator is in fixed relation phase with respect to said given frequency, a second phase detector, a second voltage controlled oscillator, a second modulator, means for applying the wave of said given frequency to said second phase detector, means for applying the output of said second phase detector to said second voltage controlled oscillator, means for applying the wave produced by said first and second voltage controlled oscillators to said second modulator, and means for applying the output of said second modulator to said second phase detector, the frequency of the wave produced by said first and second voltage controlled oscillators being different and their difference in frequency being equal to said given frequency whereby said waves produced by said second voltage controlled oscillator are also coherent.
Claim 3
Dependent Claim
67 words
The apparatus according to claim 1 comprising: a second multiplier for receiving the wave of said given frequency, a third modulator having two inputs, means for applying the output of said second multiplier to one input of said third modulator, and means for applying the output of one of said first multiplier and of said first voltage controlled oscillator tO the other input of said third modulator.
Claim 4
Dependent Claim
66 words
The apparatus according to claim 1 comprising: a second multiplier for receiving the wave of said given frequency, a third modulator having two inputs, means for applying the output of said second multiplier to one input of said third modulator, and means for applying the output of one of said first multiplier and the output of one of said voltage controlled oscillators to said third modular.
Claim 5
Dependent Claim
60 words
The apparatus according to claim 3 comprising: a fourth modulator, means including a third frequency multiplier to apply the output of said third modulator to an input of said fourth modulator, means for applying a selected one of the outputs of said first multiplier and said first and second voltage controlled oscillators to one of said third and fourth modulators.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |