US3368029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical distortion corrector
Assignee: HER MAJESTY'S POSTMASTER GENERAL
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Filing: 1965-08-20
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Granted: 1968-02-06
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Expires: 1985-08-20
Abstract
No abstract record available.
Inventors
- 👤 Macdiarmid Ian Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:09
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/77
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
ELECTRICAL SIGNAL DIFFERENTIAL DISTORTION CORRECTION APPARATUS INCLUDING A BALANCED HYBRID TRANSFORMER NETWORK HAVING INTERCOUPLED FIRST AND SECOND CONJUGATE PAIRS OF ARMS, OF THE FIRST CONJUGATED PAIR OF ARMS ONE BEING CONNECTED TO A CORRECTION IMPEDANCE DEVICE ADJUSTABE TO ALTER THE BALANCE CONDITION OF THE FIRST PAIR OF ARMS, THE OTHER ARM OF SAID FIRST PAIR BEING CONNECTED BY A DIRECT ELECTICAL PATH VIAR ONE ARM OF THE SECOND CONJUGATE PAIR OF ARMS TO AN OUTPUT ARM FOR THE APPARATUS, AND BEING CONNECTED VIA THE OTHER ARM OF SAID SECOND PAIR OF ARMS TO AN OUTPUT ARM BALANCE IMPEDANCE, AN INPUT ARM CONNECTED TO BOTH ARMS OF THE FIRST PAIR OF ARMS, AND A TRANSMISSION DELAY DEVICE CONNECTED IN THE SAID DIRECT ELECTRICAL PATH TO EFFECT A DESIRED TIME RELATION BETWEEN ELECTRICAL SIGNALS FED FROM THE INPUT ARM TO THE SECOND CONJUGATE PAIR OF ARMS VIA THE SAID DIRECT ELECTRICAL PATH AND ANY ELECTRICAL SIGNALS FED VIA THE INTERCOUPLING BETWEEN THE FIRST AND SECOND CONJUGATE PAIR OF ARMS AS A RESULT OF THE CORRECTION IMPEDANCE DEVICE PROVIDING AN UNBALANCED CONDITION TO SUCH SIGNALS.
Claim 2
Dependent Claim
182 words
ELECTRICAL SIGNAL DIFFERENTIAL DISTORTION CORRECTION APPARATUS INCLUDING A BALANCED HYBRID TRANSFORMER NETWORK HAVING INTERCOUPLED FIRST AND SECOND CONJUGATE PAIRS OF ARMS, OF THE FIRST CONJUGATED PAIR OF ARMS ONE BEING CONNECTED TO A CORRECTION IMPEDANCE DEVICE ADJUSTABE TO ALTER THE BALANCE CONDITION OF THE FIRST PAIR OF ARMS, THE OTHER ARM OF SAID FIRST PAIR BEING CONNECTED BY A DIRECT ELECTICAL PATH VIAR ONE ARM OF THE SECOND CONJUGATE PAIR OF ARMS TO AN OUTPUT ARM FOR THE APPARATUS, AND BEING CONNECTED VIA THE OTHER ARM OF SAID SECOND PAIR OF ARMS TO AN OUTPUT ARM BALANCE IMPEDANCE, AN INPUT ARM CONNECTED TO BOTH ARMS OF THE FIRST PAIR OF ARMS, AND A TRANSMISSION DELAY DEVICE CONNECTED IN THE SAID DIRECT ELECTRICAL PATH TO EFFECT A DESIRED TIME RELATION BETWEEN ELECTRICAL SIGNALS FED FROM THE INPUT ARM TO THE SECOND CONJUGATE PAIR OF ARMS VIA THE SAID DIRECT ELECTRICAL PATH AND ANY ELECTRICAL SIGNALS FED VIA THE INTERCOUPLING BETWEEN THE FIRST AND SECOND CONJUGATE PAIR OF ARMS AS A RESULT OF THE CORRECTION IMPEDANCE DEVICE PROVIDING AN UNBALANCED CONDITION TO SUCH SIGNALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |