Signal telemetering system using pair transmission lines
Abstract
Abstract A SYSTEM FOR TELEMETERING INPUT DATA SUCH AS TEMPERATURE WHICH COMPRISES: A DETECTOR OPERATINGLY CONVERTING THE INPUT DATA INTO ELECTRIC SIGNAL? AN AMPLIFIER FOR AMPLIFYING AND TRANSMITTING THE ELECTRIC SIGNAL THROUGH NEGATIVE FEEDBACK MEANS, AND A PAIR OF TRANSMISSION LINES TO A MEASURING INSTRUMENT? A D.C. POWER SOURCE FOR SUPPLYING D.C. VOLTAGE THROUGH THE TRANSMISSION LINES TO A CONSTANT CURRENT CIRCUIT? AND AN OSCILLATOR FOR GEN- ERATING A RECTANGULAR WAVE TO CONTROL THE DETECTOR, AMPLIFIER AND THE FEEDBACK MEANS SO THAT A SPIKE VOLTAGE INVOLVED IN THE RECTANGULAR WAVE PRODUCED BY THE OSCILLATOR IS PREVENTED FROM BEING TRANSMITTED TO THE INSTRUMENT THROUGH THE TRANSMISSION LINES.
Inventors
- 👤 Fumiyuki Inose
- 👤 Kazuo Takasugi
Bibliographic Details
Claims Analysis
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |