US3138767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triangular wave generator
Assignee: Individual
•
Filing: 1962-01-22
•
Granted: 1964-06-23
•
Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 William S Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A TRIANGULAR WAVEFORM GENERATOR COMPRISING: (A) A TRIGGER CIRCUIT FOR GENERATING A SQUARE WAVE SIGNAL HAVING POSITIVE AND NEGATIVE VOLTAGE OUTPUTS, SAID TRIGGER CIRCUIT HAVING AN INPUT AND AN OUTPUT, (B) AN INTEGRATOR HAVING AN INPUT AND AN OUTPUT FOR INTEGRATING SAID SQUARE WAVE SIGNAL INTO NEGATIVE AND POSITIVE RAMP FUNCTION OUTPUT SIGNALS, THE OUTPUT OF SAID INTEGRATOR BEING CONNECTED DIRECTLY TO THE INPUT OF SAID TRIGGER CIRCUIT, AND (C) FEEDBACK MEANS CONNECTING THE OUTPUT OF SAID TRIGGER CIRCUIT AND THE INPUT OF SAID INTEGRATOR.
Claim 2
Dependent Claim
85 words
A TRIANGULAR WAVEFORM GENERATOR COMPRISING: (A) A TRIGGER CIRCUIT FOR GENERATING A SQUARE WAVE SIGNAL HAVING POSITIVE AND NEGATIVE VOLTAGE OUTPUTS, SAID TRIGGER CIRCUIT HAVING AN INPUT AND AN OUTPUT, (B) AN INTEGRATOR HAVING AN INPUT AND AN OUTPUT FOR INTEGRATING SAID SQUARE WAVE SIGNAL INTO NEGATIVE AND POSITIVE RAMP FUNCTION OUTPUT SIGNALS, THE OUTPUT OF SAID INTEGRATOR BEING CONNECTED DIRECTLY TO THE INPUT OF SAID TRIGGER CIRCUIT, AND (C) FEEDBACK MEANS CONNECTING THE OUTPUT OF SAID TRIGGER CIRCUIT AND THE INPUT OF SAID INTEGRATOR.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |