US3241066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compandor system having an analog signal controlled compressor and an auxiliary signal controlled expander
Assignee: TDK Micronas GmbH
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Filing: 1962-04-12
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Granted: 1966-03-15
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Expires: 1982-04-12
Abstract
No abstract record available.
Inventors
- 👤 Harri K Ligotky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:19
CPC Classifications
H; H03; H03G; H03G7/00; H03G7/008; H04; H04B; H04B1/00; H04B1/62; H04B1/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A COMPANDOR COMPRISING: A SOURCE OF ANALOG SIGNAL; A SOURCE OF SIGNALING TONE TO CONVEY INTELLIGENCE IN THE FORM OF AN "ON-OFF" TYPE CODE, THE "ON" ELEMENT OF SAID CODE BEING INDICATED BY A FIRST FREQUENCY OF SAID TONE AND THE "OFF" ELEMENT OF SAID CODE BEING INDICATED BY A SECOND FREQUENCY OF SAID TONE; MEANS COUPLED TO EACH OF SAID SOURCES RESPONSIVE TO THE AMPLITUDE OF SAID SIGNAL TO CONTROL THE COMPRESSION OF SAID SIGNAL AND SAID TONE ACCORDING TO A GIVEN COMPRESSION CHARACTERISTIC; MEANS COUPLED TO SAID CONTROL MEANS RESPONSIVE TO THE AMPLITUDE OF SAID TONE FOR EXPANSION OF SAID SIGNAL AND SAID TONE TO COMPLEMENT THE COMPRESSION THEREOF; AND MEANS COUPLED TO SAID TONE RESPONSIVE MEANS FOR UTILIZATION OF THE INTELLIGENCE CONVEYED BY SAID TONE.
Claim 2
Dependent Claim
128 words
A COMPANDOR COMPRISING: A SOURCE OF ANALOG SIGNAL; A SOURCE OF SIGNALING TONE TO CONVEY INTELLIGENCE IN THE FORM OF AN "ON-OFF" TYPE CODE, THE "ON" ELEMENT OF SAID CODE BEING INDICATED BY A FIRST FREQUENCY OF SAID TONE AND THE "OFF" ELEMENT OF SAID CODE BEING INDICATED BY A SECOND FREQUENCY OF SAID TONE; MEANS COUPLED TO EACH OF SAID SOURCES RESPONSIVE TO THE AMPLITUDE OF SAID SIGNAL TO CONTROL THE COMPRESSION OF SAID SIGNAL AND SAID TONE ACCORDING TO A GIVEN COMPRESSION CHARACTERISTIC; MEANS COUPLED TO SAID CONTROL MEANS RESPONSIVE TO THE AMPLITUDE OF SAID TONE FOR EXPANSION OF SAID SIGNAL AND SAID TONE TO COMPLEMENT THE COMPRESSION THEREOF; AND MEANS COUPLED TO SAID TONE RESPONSIVE MEANS FOR UTILIZATION OF THE INTELLIGENCE CONVEYED BY SAID TONE.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |