US3219934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency conversion system
Assignee: Individual
•
Filing: 1962-09-25
•
Granted: 1965-11-23
•
Expires: 1982-09-25
Abstract
No abstract record available.
Inventors
- 👤 Meguer V Kalfaian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:21
CPC Classifications
G; G10; G10L; G10L19/00; G10L19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A FREQUENCY CONVERSION SYTEM FOR RECORDING A COMPLEX WAVE DURING A UNKNOWN TIME PERIOD AND REPORODUCING IT REPEATEDLY IN BACKWARD AND FORWARD DIRECTIONS IN REFERENCE TIME BASE PERIODS, THE SYSTEM COMPRISING MEANS FOR PRODUCING SAID COMPLEX WAVE; A FIRST GENERATOR OF WAVES AT A FIRST FREQUENCY; A SECOND GENERATOR OF WAVES OF VARIABLE FREQUENCY; MEANS FOR SAMPLING THE VARIOUS AMPLITUDES OF THE PRODUCED COMPLEX WAVE BY THE WAVES OF THE FIRST GENERATOR; MEANS FOR STORING SAID SAMPLES; MEANS FOR PRODUCING A CONTROL SIGNAL REPRESENTATIVE OF THE TIME PERIOD DURING WHICH SAID SAMPLES HAD BEEN STORED; MEANS FOR VARYING THE FREQUENCY OF SAID SECOND GENERATOR BY SAID CONTROL SIGNAL BY AN AMOUNT AS TO PRODUCE APPROXIMATELY THE SAME NUMBER OF WAVES DURING A REFERENCE TIME BASE PERIOD, AS THE NUMBER OF SAID STORED SAMPLES; AND MEANS FOR RESAMPLING THE STORED SAMPLES IN BACKWARD AND FORWARD DIRECTIONS DURING SAID REFERENCE TIME BASE PERIODS BY THE FREQUENCY-VARIED WAVES FOR REPRODUCING THE STORED SAMPLES AT A FREQUENCY CONVERSION RATE AFORESAID.
Claim 2
Dependent Claim
166 words
A FREQUENCY CONVERSION SYTEM FOR RECORDING A COMPLEX WAVE DURING A UNKNOWN TIME PERIOD AND REPORODUCING IT REPEATEDLY IN BACKWARD AND FORWARD DIRECTIONS IN REFERENCE TIME BASE PERIODS, THE SYSTEM COMPRISING MEANS FOR PRODUCING SAID COMPLEX WAVE; A FIRST GENERATOR OF WAVES AT A FIRST FREQUENCY; A SECOND GENERATOR OF WAVES OF VARIABLE FREQUENCY; MEANS FOR SAMPLING THE VARIOUS AMPLITUDES OF THE PRODUCED COMPLEX WAVE BY THE WAVES OF THE FIRST GENERATOR; MEANS FOR STORING SAID SAMPLES; MEANS FOR PRODUCING A CONTROL SIGNAL REPRESENTATIVE OF THE TIME PERIOD DURING WHICH SAID SAMPLES HAD BEEN STORED; MEANS FOR VARYING THE FREQUENCY OF SAID SECOND GENERATOR BY SAID CONTROL SIGNAL BY AN AMOUNT AS TO PRODUCE APPROXIMATELY THE SAME NUMBER OF WAVES DURING A REFERENCE TIME BASE PERIOD, AS THE NUMBER OF SAID STORED SAMPLES; AND MEANS FOR RESAMPLING THE STORED SAMPLES IN BACKWARD AND FORWARD DIRECTIONS DURING SAID REFERENCE TIME BASE PERIODS BY THE FREQUENCY-VARIED WAVES FOR REPRODUCING THE STORED SAMPLES AT A FREQUENCY CONVERSION RATE AFORESAID.
References Cited (Backward Citations)
US3054063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |