Patent US3157745A successfully refreshed from Google Patents.
US3157745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Band width comparison transmission system for recurring similar signals utilizing selective pulse indications
Assignee: NEC Corp
•
Filing: 1961-06-20
•
Granted: 1964-11-17
•
Expires: 1981-06-20
Abstract
No abstract record available.
Inventors
- 👤 Maezono Kenichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:18
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A SYSTEM FOR PRODUCING A SERIES OF BAND-COMPRESSED OUTPUT PULSE INDICATIONS REPRESENTATIVE OF AN INPUT SIGNAL HAVING A FORM APPROXIMATELY RECURRING IN REGULAR PERIODS, SAID SIGNAL BEING REPRESENTED BY A FIRST TRAIN OF M PULSE INDICATIONS CONTAINING A PREDETERMINED NUMBER OF GROUPS OF K OF SAID PULSE INDICATIONS, COMPRISING: (A) MEANS FOR SELECTING THE FIRST PULSE INDICATION FROM EACH OF SAID GROUPS DURING A FIRST REGULAR PERIOD, (B) MEANS FOR SELECTING THE NEXT SUCCEEDING PULSE INDICATIONS SUCCESSIVELY DURING THE FOLLOWING K-1 REGULAR PERIODS, (C) MEANS FOR TRANSMITTING THE SELECTED PULSE INDICATIONS, AND (D) MEANS FOR SUCCESSIVELY REPEATING SIMILAR SELECTION AND TRANSMISSION OF PULSE INDICATIONS FOR SUCCESSIVE GROUPS OF K REGULAR PERIODS.
Claim 2
Independent Claim
111 words
A SYSTEM FOR PRODUCING A SERIES OF BAND-COMPRESSED OUTPUT PULSE INDICATIONS REPRESENTATIVE OF AN INPUT SIGNAL HAVING A FORM APPROXIMATELY RECURRING IN REGULAR PERIODS, SAID SIGNAL BEING REPRESENTED BY A FIRST TRAIN OF M PULSE INDICATIONS CONTAINING A PREDETERMINED NUMBER OF GROUPS OF K OF SAID PULSE INDICATIONS, COMPRISING: (A) MEANS FOR SELECTING THE FIRST PULSE INDICATION FROM EACH OF SAID GROUPS DURING A FIRST REGULAR PERIOD, (B) MEANS FOR SELECTING THE NEXT SUCCEEDING PULSE INDICATIONS SUCCESSIVELY DURING THE FOLLOWING K-1 REGULAR PERIODS, (C) MEANS FOR TRANSMITTING THE SELECTED PULSE INDICATIONS, AND (D) MEANS FOR SUCCESSIVELY REPEATING SIMILAR SELECTION AND TRANSMISSION OF PULSE INDICATIONS FOR SUCCESSIVE GROUPS OF K REGULAR PERIODS.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |