Patent US3238450A successfully refreshed from Google Patents.
US3238450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal amplitude and phase synthesizing apparatus
Assignee: Unisys Corp
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Filing: 1962-10-22
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Granted: 1966-03-01
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Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Palmer Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:49
CPC Classifications
H; H03; H03L; H03L5/00; H03L7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
APPARATUS FOR PRODUCING A PHASE SHIFTED FIRST SIGNAL WHOSE PHASE AND AMPLITUDE ARE DETERMINED BY THE PHASE AND AMPLITUDE OF A SECOND SIGNAL, SAID SECOND SIGNAL HAVING ANY UNRESTRICTED INITIAL PHASE RELATION WITH RESPECT TO SAID PHASE SHIFTED FIRST SIGNAL, AND APPARATUS COMPRISING A SOURCE OF SAID FIRST SIGNAL, FIRST MEANS COUPLED TO SAID SOURCE FOR PHASE SHIFTING SAID FIRST SIGNAL IN RESPONSE TO A FIRST CONTROL SIGNAL, SECOND MEANS COUPLED TO SAID FIRST MEANS FOR ATTENUATING THE PHASE SHIFTED SIGNAL IN RESPONSE TO A SECOND CONTROL SIGNAL, MEANS COUPLED TO RECEIVE THE PHASE SHIFTED AND ATTENUATED SIGNAL AND SAID SECOND SIGNAL TO PRODUCE A PHASOR DIFFERENCE SIGNAL, MEANS COUPLED TO RECEIVE SAID DIFFERENCE SIGNAL AND SAID PHASE SHIFTED SIGNAL TO PRODUCE SAID FIRST CONTROL SIGNAL REPRESENTING THE COMPONENT OF SAID DIFFERENCE SIGNAL WHICH IS IN PHASE QUADRATURE WITH SAID PHASE SHIFTED SIGNAL, SAID FIRST CONTROL SIGNAL BEING APPLIED TO SAID FIRST MEANS WHEREBY SAID PHASE SHIFTED FIRST SIGNAL IS BROUGH INTO A PREDETERMINED PHASE RELATION WITH RESPECT TO SAID SECOND SIGNAL IRRESPECTIVE OF SAID INITIAL PHASE RELATION, AND MEANS COUPLED TO RECEIVE SAID DIFFERENCE SIGNAL AND SAID PHASE SHIFTED SIGNAL TO PROVIDE SAID SECOND CONTROL SIGNAL REPRESENTING THE COMPONENT OF SAID DIFFERENCE SIGNAL WHICH IS IN PHASE WITH SAID PHASE SHIFTED SIGNAL, SAID SECOND CONTROL SIGNAL BEING APPLIED TO SAID SECOND MEANS.
Claim 2
Dependent Claim
223 words
APPARATUS FOR PRODUCING A PHASE SHIFTED FIRST SIGNAL WHOSE PHASE AND AMPLITUDE ARE DETERMINED BY THE PHASE AND AMPLITUDE OF A SECOND SIGNAL, SAID SECOND SIGNAL HAVING ANY UNRESTRICTED INITIAL PHASE RELATION WITH RESPECT TO SAID PHASE SHIFTED FIRST SIGNAL, AND APPARATUS COMPRISING A SOURCE OF SAID FIRST SIGNAL, FIRST MEANS COUPLED TO SAID SOURCE FOR PHASE SHIFTING SAID FIRST SIGNAL IN RESPONSE TO A FIRST CONTROL SIGNAL, SECOND MEANS COUPLED TO SAID FIRST MEANS FOR ATTENUATING THE PHASE SHIFTED SIGNAL IN RESPONSE TO A SECOND CONTROL SIGNAL, MEANS COUPLED TO RECEIVE THE PHASE SHIFTED AND ATTENUATED SIGNAL AND SAID SECOND SIGNAL TO PRODUCE A PHASOR DIFFERENCE SIGNAL, MEANS COUPLED TO RECEIVE SAID DIFFERENCE SIGNAL AND SAID PHASE SHIFTED SIGNAL TO PRODUCE SAID FIRST CONTROL SIGNAL REPRESENTING THE COMPONENT OF SAID DIFFERENCE SIGNAL WHICH IS IN PHASE QUADRATURE WITH SAID PHASE SHIFTED SIGNAL, SAID FIRST CONTROL SIGNAL BEING APPLIED TO SAID FIRST MEANS WHEREBY SAID PHASE SHIFTED FIRST SIGNAL IS BROUGH INTO A PREDETERMINED PHASE RELATION WITH RESPECT TO SAID SECOND SIGNAL IRRESPECTIVE OF SAID INITIAL PHASE RELATION, AND MEANS COUPLED TO RECEIVE SAID DIFFERENCE SIGNAL AND SAID PHASE SHIFTED SIGNAL TO PROVIDE SAID SECOND CONTROL SIGNAL REPRESENTING THE COMPONENT OF SAID DIFFERENCE SIGNAL WHICH IS IN PHASE WITH SAID PHASE SHIFTED SIGNAL, SAID SECOND CONTROL SIGNAL BEING APPLIED TO SAID SECOND 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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |