US3071643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereophonic transmission system for television broadcasting
Assignee: Lanteris Space LLC
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Filing: 1958-11-04
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Granted: 1963-01-01
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Expires: 1978-11-04
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:57
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
IN A TELEVISION RECEIVER INCLUDING MEANS FOR RECEIVING A COMPOSITE TELEVISION SIGNAL, MEANS FOR SEPARATING SAID COMPOSITE TELEVISION SIGNAL INTO A SOUND INFORMATION SIGNAL AND A VIDEO INFORMATION SIGNAL AND MEANS FOR SEPARATING HORIZONTAL SYNCHRONIZING PULSES FROM SAID VIDEO INFORMATION SIGNAL, A STEREOPHONIC SOUND CHANNEL COMPRISING FIRST AND SECOND SOUND REPRODUCERS, FIRST AND SECOND AMPLIFYING AND FREQUENCY LIMITING MEANS COUPLED TO SAID FIRST AND SECOND SOUND REPRODUCERS, RESPECTIVELY, RESAMPLER MEANS, MEANS FOR SUPPLYING SAID SEPARATED SOUND INFORMATION SIGNAL TO SAID RESAMPLER MEANS, MEANS FOR SUPPLYING SAID SEPARATED HORIZONTAL SYNCHRONIZING PULSES TO SAID RESAMPLER MEANS, MEANS COUPLING SAID RESAMPLER MEANS TO SAID FIRST AND SECOND AMPLIFYING AND FREQUENCY LIMITING MEANS, SAID RESAMPLER MEANS BEING RESPONSIVE TO SAID SEPARATED SOUND INFORMATION SIGNAL AND SAID SEPA-
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |