US3341658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronization system utilizing a matched filter for correlation detection of sync signals
Assignee: NEC Corp
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Filing: 1964-02-04
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Granted: 1967-09-12
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Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 Kaneko Hisashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
H; H04; H04L; H04L7/00; H04L7/0054; H03; H03K; H03K9/00; H04J; H04J3/00; H04J3/02; H04J3/06; H04L7/04; H04L7/041; H04L7/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A SYNCHRONIZING SIGNAL DETECTOR FOR SYNCHRONIZING A RECEIVER WITH SYNCHRONIZING SIGNALS CONTAINED IN RECEIVED INPUT SIGNALS SUPPLIED TO THE RECEIVER, COMPRISING: (A) A TIMING SIGNAL SOURCE FOR GENERATING TIMING SIGNALS HAVING A SHAPE WHICH IS RELATED TO THE A PRIORI PROBABILITY DISTRIBUTION CURVE FOR THE POSITION OF A TIMING POINT IN SAID SYNCHRONIZING SIGNALS; (B) A MATCHED FILTER CONNECTED TO RECEIVE THE INPUT SIGNALS FOR PRODUCING FILTERED OUTPUT SIGNALS WHICH VARY IN ACCORDANCE WITH A PREDETERMINED CHARACTERISTIC OF THE INPUT SIGNALS; AND
Claim 2
Dependent Claim
82 words
A SYNCHRONIZING SIGNAL DETECTOR FOR SYNCHRONIZING A RECEIVER WITH SYNCHRONIZING SIGNALS CONTAINED IN RECEIVED INPUT SIGNALS SUPPLIED TO THE RECEIVER, COMPRISING: (A) A TIMING SIGNAL SOURCE FOR GENERATING TIMING SIGNALS HAVING A SHAPE WHICH IS RELATED TO THE A PRIORI PROBABILITY DISTRIBUTION CURVE FOR THE POSITION OF A TIMING POINT IN SAID SYNCHRONIZING SIGNALS; (B) A MATCHED FILTER CONNECTED TO RECEIVE THE INPUT SIGNALS FOR PRODUCING FILTERED OUTPUT SIGNALS WHICH VARY IN ACCORDANCE WITH A PREDETERMINED CHARACTERISTIC OF THE INPUT SIGNALS; AND
References Cited (Backward Citations)
US3309463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |