US3141930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital signal synchronizer system
Assignee: STELMA Inc
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Filing: 1961-05-15
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Granted: 1964-07-21
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Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Bert F Krauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:40
CPC Classifications
H; H04; H04L; H04L7/00; H04L7/02; H04L7/033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A DIGITAL SIGNAL SYNCHRONIZING SYSTEM COMPRISING: MEANS TO RECEIVE DATA PULSE SIGNALS HAVING A DATA BIT FREQUENCY (F): MEANS FOR LOCALLY GENERATING A MASTER TIMING PULSE SIGNAL TRAIN HAVING A MULTIPLE FREQUENCY EQUAL TO N TIMES (F); MEANS FOR COMPARING THE TIME PHASE RELATIONSHIP BETWEEN EACH DATA SIGNAL PULSE AND EACH SUCCESSIVE NTH TIMING PULSE TO OBTAIN A MEASURE OF TIME PHASE DEVIATION OF EACH DATA PULSE FROM THE CORRESPONDING NTH LOCAL TIMING PULSE; MEANS FOR ALGEBRAICALLY ADDING SUCH TIME PHASE DEVIATIONS OVER A LIMITED TIME INTERVAL TO MEASURE AN AVERAGE DEVIATION OR ERROR FOR THAT INTERVAL; AND MEANS RESPONSIVE TO SUCH MEASURED AVERAGE DEVIATION FOR MODIFYING THE ACTION OF THE MASTER TIMING GENERATING MEANS TO GENERATE A PHASE-MODIFIED TIMING TRAIN SIGNAL SO THE NTH ONE OF SUCH PHASE MODIFIED TIMING SIGNALS WILL BE SHIFTED CLOSER TO THE INCOMING DATA SIGNAL TO PROVIDE AN OUTPUT TIMING SIGNAL SYNCHRONOUS WITH THE INCOMING DATA SIGNAL.
Claim 2
Dependent Claim
153 words
A DIGITAL SIGNAL SYNCHRONIZING SYSTEM COMPRISING: MEANS TO RECEIVE DATA PULSE SIGNALS HAVING A DATA BIT FREQUENCY (F): MEANS FOR LOCALLY GENERATING A MASTER TIMING PULSE SIGNAL TRAIN HAVING A MULTIPLE FREQUENCY EQUAL TO N TIMES (F); MEANS FOR COMPARING THE TIME PHASE RELATIONSHIP BETWEEN EACH DATA SIGNAL PULSE AND EACH SUCCESSIVE NTH TIMING PULSE TO OBTAIN A MEASURE OF TIME PHASE DEVIATION OF EACH DATA PULSE FROM THE CORRESPONDING NTH LOCAL TIMING PULSE; MEANS FOR ALGEBRAICALLY ADDING SUCH TIME PHASE DEVIATIONS OVER A LIMITED TIME INTERVAL TO MEASURE AN AVERAGE DEVIATION OR ERROR FOR THAT INTERVAL; AND MEANS RESPONSIVE TO SUCH MEASURED AVERAGE DEVIATION FOR MODIFYING THE ACTION OF THE MASTER TIMING GENERATING MEANS TO GENERATE A PHASE-MODIFIED TIMING TRAIN SIGNAL SO THE NTH ONE OF SUCH PHASE MODIFIED TIMING SIGNALS WILL BE SHIFTED CLOSER TO THE INCOMING DATA SIGNAL TO PROVIDE AN OUTPUT TIMING SIGNAL SYNCHRONOUS WITH THE INCOMING DATA SIGNAL.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |