US3843936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized oscillator
Assignee: Individual
•
Filing: 1973-10-01
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Granted: 1974-10-22
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Expires: 1993-10-01
Abstract
Abstract A stabilized oscillator employs a circuit for stabilizing the frequency and phase of the oscillator, without the requirement of two separate discriminator circuits, the combination incorporating a control loop including a phase control apparatus for producing a signal whose arithmetic mean over a predetermined time permits synchronization of the oscillator in both frequency and phase with a standard source of signals.
Inventors
- 👤 F Kauderer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:50
CPC Classifications
H; H03; H03D; H03D13/00; H03D13/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
In a stabilized oscillator having a circuit for stabilizing the frequency and phase of the oscillator, the combination comprising a pulse shaper to provide an output wave form for each cycle of said oscillator, said wave form including a sloping portion having a substantial duration which is independent of the frequency of said oscillator and a non-sloping portion having a duration which is dependent on the frequency of said oscillator, whereby the arithmetic mean value of said wave form is a function of the frequency of said oscillator, and sampling means for periodically sampling the instantaneous level of said wave form and for developing a control voltage for controlling said oscillator in response thereto.
Claim 2
Dependent Claim
114 words
In a stabilized oscillator having a circuit for stabilizing the frequency and phase of the oscillator, the combination comprising a pulse shaper to provide an output wave form for each cycle of said oscillator, said wave form including a sloping portion having a substantial duration which is independent of the frequency of said oscillator and a non-sloping portion having a duration which is dependent on the frequency of said oscillator, whereby the arithmetic mean value of said wave form is a function of the frequency of said oscillator, and sampling means for periodically sampling the instantaneous level of said wave form and for developing a control voltage for controlling said oscillator in response thereto.
Claim 3
Dependent Claim
24 words
Apparatus according to claim 1, including sampling means for sampling the instantaneous value of said wave form periodically in synchronism with a standard signal.
Claim 4
Dependent Claim
44 words
Apparatus according to claim 1, wherein said sampling means comprises a diode bridge, means for periodically unblocking said diodes, means for connecting said wave form to the input of said bridge, and means for connecting said integrating means to the output of said bridge.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 1, including a Miller integrator for developing said sloping portion in response to a predetermined portion of each cycle of operation of said free-running oscillator.
Claim 6
Dependent Claim
37 words
Apparatus according to claim 1, wehrein said wave form includes a first non-sloping portion corresponding to the lower limit of said sloping portion and a second non-sloping portion corresponding to the upper limit of said sloping portion.
Claim 7
Independent Claim
64 words
A method of synchronizing an oscillator with a standard frequency source comprising the steps of generating a wave form for each cycle of said oscillator, said wave form having a sloping portion of substantial duration, the said duration being independent of frequency, and a non-sloping portion, sampling the instantaneous level of said wave form periodically, and deriving a control signal for controlling said oscillator.
Claim 8
Independent Claim
64 words
A method of synchronizing an oscillator with a standard frequency source comprising the steps of generating a wave form for each cycle of said oscillator, said wave form having a sloping portion of substantial duration, the said duration being independent of frequency, and a non-sloping portion, sampling the instantaneous level of said wave form periodically, and deriving a control signal for controlling said oscillator.
Claim 9
Dependent Claim
21 words
The method according to claim 6, including the step of sampling said wave form periodically in synchronism with said standard frequency.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |