US3350651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveform converters
Assignee: Scientific Atlanta LLC
•
Filing: 1964-12-18
•
Granted: 1967-10-31
•
Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Robert D Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:57
CPC Classifications
G; G01; G01R; G01R23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A CIRCUIT FOR GENERATING A SELECTD OUTPUT WAVEFORM WITH A FREQUENCY PROPORTIONAL TO THE VARIABLE REPETITION RATE OF AN INPUT SIGNAL COMPRISING: MEANS FOR GENERATING A DC VOLTAGE LEVEL PROPORTIONAL TO THE REPETITION RATE OF THE INPUT SIGNAL; AND INTEGRATOR CIRCUIT FOR INTEGRATING AN APPLIED VOLTAGE IN LINEAR FASHION AT A RATE PROPORTIONAL TO ITS AMPLITUDE; AND MEANS FOR APPLYING THE DC VOLTAGE LEVEL GENERTED TO THE INTEGRATOR CIRCUIT TO CHARGE AND DISCHARGE BETWEEN FIXED UPPER AND LOWER OUTPUT LEVELS THEREBY GENERATING A TRIANGULAR WAVEFORM WITH A FREQUENCY PROPORTIONAL TO THE REPETITION RATE OF THE INPUT SIGNAL.
Claim 2
Dependent Claim
97 words
A CIRCUIT FOR GENERATING A SELECTD OUTPUT WAVEFORM WITH A FREQUENCY PROPORTIONAL TO THE VARIABLE REPETITION RATE OF AN INPUT SIGNAL COMPRISING: MEANS FOR GENERATING A DC VOLTAGE LEVEL PROPORTIONAL TO THE REPETITION RATE OF THE INPUT SIGNAL; AND INTEGRATOR CIRCUIT FOR INTEGRATING AN APPLIED VOLTAGE IN LINEAR FASHION AT A RATE PROPORTIONAL TO ITS AMPLITUDE; AND MEANS FOR APPLYING THE DC VOLTAGE LEVEL GENERTED TO THE INTEGRATOR CIRCUIT TO CHARGE AND DISCHARGE BETWEEN FIXED UPPER AND LOWER OUTPUT LEVELS THEREBY GENERATING A TRIANGULAR WAVEFORM WITH A FREQUENCY PROPORTIONAL TO THE REPETITION RATE OF THE INPUT 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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |