Patent US3229038A successfully refreshed from Google Patents.
US3229038A
Expired / Lapsed
US
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Sound signal transforming system
Assignee: RCA Corp
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Filing: 1961-10-31
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Granted: 1966-01-11
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Expires: 1981-10-31
Abstract
No abstract record available.
Inventors
- 👤 Donald L Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:12
CPC Classifications
H; H04; H04S; H04S1/00; H04S1/002; H03; H03G; H03G9/00; H03G9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A DYNAMIC EQUALIZER AND COMPENSATING SYSTEM FOR SOUND SIGNAL TRANSLATION FROM A HIGHER AMPLITUDE OR INTENSITY LEVEL OF PRODUCTION TO A LOWER AMPLITUDE OR INTENSITY LEVEL OF REPRODUCTION, COMPRISING IN COMBINATION, SIGNAL TRANSLATING CHANNEL MEANS INCLUDING A DIVIDED SIGNAL TRANSFORMING CIRCUIT HAVING A LIMITED LOW-LEVEL BRANCH AND AN UNLIMITED HIGH-LEVEL BRANCH, SAID BRANCHES HAVING A COMMON INPUT CIRCUIT AND A COMMON OUTPUT CIRCUIT, SIGNAL MIXING MEANS INTERPOSED BETWEEN EACH BRANCH AND THE COMMON OUTPUT CIRCUIT, GAIN CONTROL MEANS IN ONE OF SAID BRANCHES FOR CONTROLLING THE RELATIVE SIGNAL AMPLITUDE IN SAID BRANCHES, LOW-LEVEL SIGNAL UTILIZATION MEANS CONNECTED WITH SAID OUTPUT CIRCUIT, HIGH-LEVEL SIGNAL SUPPLY MEANS CONNECTED WITH THE INPUT CIRCUIT, LIMITER AND BASSRESPONSE EQUALIZER MEANS CONNECTED IN THE LIMITED BRANCH OF SAID CIRCUIT FOR EQUALIZING AND DYNMICALLY CONTROLLING SIGNAL TRANSLATION THERETHROUGH AND SHAPING THE COMPOSITE SIGNAL OUTPUT RESPONSE THROUGH SAID MIXER MEANS IN THE OUTPUT CIRCUIT, AND HIGH-FREQUENCY EQUALIZER AND EXPANDER MEANS IN THE UNLIMITED BRANCH OF SAID CIRCUIT FOR EQUALIZING AND DYNAMICALLY CONTROLLING THE SIGNAL TRANSLATION THERETHROUGH AND FURTHER SHAPING THE COMPOSITE SIGNAL OUTPUT RESPONSE THROUGH SAID MIXER MEANS IN THE OUTPUT CIRCUIT.
Claim 2
Dependent Claim
184 words
A DYNAMIC EQUALIZER AND COMPENSATING SYSTEM FOR SOUND SIGNAL TRANSLATION FROM A HIGHER AMPLITUDE OR INTENSITY LEVEL OF PRODUCTION TO A LOWER AMPLITUDE OR INTENSITY LEVEL OF REPRODUCTION, COMPRISING IN COMBINATION, SIGNAL TRANSLATING CHANNEL MEANS INCLUDING A DIVIDED SIGNAL TRANSFORMING CIRCUIT HAVING A LIMITED LOW-LEVEL BRANCH AND AN UNLIMITED HIGH-LEVEL BRANCH, SAID BRANCHES HAVING A COMMON INPUT CIRCUIT AND A COMMON OUTPUT CIRCUIT, SIGNAL MIXING MEANS INTERPOSED BETWEEN EACH BRANCH AND THE COMMON OUTPUT CIRCUIT, GAIN CONTROL MEANS IN ONE OF SAID BRANCHES FOR CONTROLLING THE RELATIVE SIGNAL AMPLITUDE IN SAID BRANCHES, LOW-LEVEL SIGNAL UTILIZATION MEANS CONNECTED WITH SAID OUTPUT CIRCUIT, HIGH-LEVEL SIGNAL SUPPLY MEANS CONNECTED WITH THE INPUT CIRCUIT, LIMITER AND BASSRESPONSE EQUALIZER MEANS CONNECTED IN THE LIMITED BRANCH OF SAID CIRCUIT FOR EQUALIZING AND DYNMICALLY CONTROLLING SIGNAL TRANSLATION THERETHROUGH AND SHAPING THE COMPOSITE SIGNAL OUTPUT RESPONSE THROUGH SAID MIXER MEANS IN THE OUTPUT CIRCUIT, AND HIGH-FREQUENCY EQUALIZER AND EXPANDER MEANS IN THE UNLIMITED BRANCH OF SAID CIRCUIT FOR EQUALIZING AND DYNAMICALLY CONTROLLING THE SIGNAL TRANSLATION THERETHROUGH AND FURTHER SHAPING THE COMPOSITE SIGNAL OUTPUT RESPONSE THROUGH SAID MIXER MEANS IN THE OUTPUT CIRCUIT.
References Cited (Backward Citations)
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US1993859A
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US2137032A
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US2343471A
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US2395159A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |