US3832652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic dividing circuit for dividing an input frequency by at least three
Assignee: RCA Corp
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Filing: 1973-01-19
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Granted: 1974-08-27
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Expires: 1993-01-19
Abstract
Abstract A circuit is presented which has the capability of dividing an input frequency by an integer in order to achieve an output frequency within a specified range. This dynamic dividing circuit is capable of multi-gigabit rate operation.
Inventors
- 👤 C Upadhyayula
- 👤 S Narayan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:48
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/24; H03B; H03B9/00; H03B9/12; H03B9/14
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
118 words
A dynamic frequency divider comprising: a. a transferred electron device chosen to oscillate at a desired output frequency; b. biasing means connected to said transferred electron device which provide a voltage bias sufficient to maintain the electric field within said transferred electron device at a level greater than the domain-sustaining field but less than the threshold field of said transferred electron device; c. an input circuit tuned to receive an input signal which is an integral multiple of said output frequency, said integral multiple being at least three times said output frequency; d. an output circuit responsive to said output frequency; and e. circuit means coupling said transferred electron device to said input circuit and said output circuit.
Claim 2
Dependent Claim
118 words
A dynamic frequency divider comprising: a. a transferred electron device chosen to oscillate at a desired output frequency; b. biasing means connected to said transferred electron device which provide a voltage bias sufficient to maintain the electric field within said transferred electron device at a level greater than the domain-sustaining field but less than the threshold field of said transferred electron device; c. an input circuit tuned to receive an input signal which is an integral multiple of said output frequency, said integral multiple being at least three times said output frequency; d. an output circuit responsive to said output frequency; and e. circuit means coupling said transferred electron device to said input circuit and said output circuit.
Claim 3
Dependent Claim
18 words
The dynamic frequency divider of claim 1 wherein said transferred electron device comprises a three-terminal transferred electron device.
Claim 4
Dependent Claim
58 words
The dynamic frequency divider of claim 2 wherein said three terminals of said transferred electron device comprise: a. a gate terminal electrically connected to said input circuit; b. an anode terminal electrically connected to said biasing means and to said output circuit; and c. a cathode terminal electrically connected to said input circuit and to said output circuit.
Claim 5
Dependent Claim
31 words
The dynamic frequency divider of claim 3 wherein said biasing means comprises a voltage source electrically connected through a low pass filter to said anode terminal of said transferred electron device.
Claim 6
Dependent Claim
18 words
The dynamic frequency divider of claim 1 wherein said transferred electron device comprises a two-terminal transferred electron device.
Claim 7
Dependent Claim
19 words
The dynamic frequency divider of claim 5 wherein said two-terminal transferred electron device is mounted in a tuned cavity.
Claim 8
Dependent Claim
50 words
The dynamic frequency divider of claim 6 further comprising a microwave circulator, said circulator having: a. a first port connected to said input signal; b. a second port connected to said transferred electron device mounted in said tuned cavity; and c. a third port electrically connected to said output circuit.
Claim 9
Dependent Claim
27 words
The dynamic frequency divider of claim 7 wherein said biasing means comprises a voltage source in series with a low pass filter and said transferred electron device.
Claim 10
Dependent Claim
38 words
The dynamic frequency divider of claim 2 wherein said transferred electron device and said output circuit are tuned to said output frequency and said input circuit is tuned to a frequency greater than that of said output frequency.
Claim 11
Dependent Claim
21 words
The dynamic frequency divider of claim 9 wherein said input frequency is three or more times that of said output frequency.
Claim 12
Dependent Claim
19 words
The dynamic frequency divider of claim 9 wherein said input circuit comprises a waveguide tuned to said input frequency.
Claim 13
Dependent Claim
19 words
The dynamic frequency divider of claim 9 wherein said output circuit comprises a waveguide tuned to said output frequency.
Claim 14
Dependent Claim
20 words
The dynamic frequency divider of claim 9 wherein said input circuit comprises a coaxial line tuned to said input frequency.
Claim 15
Dependent Claim
20 words
The dynamic frequency divider of claim 9 wherein said output circuit comprises a coaxial line tuned to said output 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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |