US3174074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized deflection system for flat-faced kinescope
Assignee: Motorola Solutions Inc
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Filing: 1961-05-08
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Granted: 1965-03-16
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Expires: 1981-05-08
Abstract
No abstract record available.
Inventors
- 👤 Albert W Massman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:00
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/60; H03K4/62; H03K4/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A DEFLECTION SYSTEM PROVIDING A DEFLECTION SIGNAL WITH TRACE AND RETRACE PORTIONS FOR A CATHODE RAY TUBE, SAID SYSTEM INCLUDING IN COMBINATION, A SWITCHING TRANSISTOR, MEANS FOR SUPPLYING PULSES TO SAID TRANSISTOR WITH A POLARITY TO CUT OFF SAID TRANSISTOR FOR THE RETRACE PORTION OF THE SIGNAL, DIRECT CURRENT POWER SUPPLY MEANS, DEFLECTION WINDING MEANS CONNECTED IN A CONDUCTIVE CIRCUIT WITH SAID TRANSISTOR IS CONDUCTIVE INITIALLY IN A REVERSE SO THAT SAID TRANSISTOR IS CONDUCTIVE INITIALLY IN A REVERSE DIRECTION AND SUBSEQUENTLY IN A FORWARD DIRECTION DURING THE TRACE PORTION FOR DEVELOPING A SAWTOOTH DEFLECTION CURRENT IN SAID WINDING MEANS SO THAT SAID WINDING MEANS MAY RING ON THE RETRACE PORTION, A DAMPING DIODE COMPOSED OF A DIFFERENT SEMICONDUCTOR MATERIAL THAN THAT OF SAID TRANSISTOR, MEANS CONNECTING SAID DIODE TO A REFERENCE POINT OF SAID POWER SUPPLY MEANS AND TO A TURN OF SAID WINDING MEANS REMOVED FROM THE CONNECTION THEREOF TO SAID TRANSISTOR WHEREBY SAID DIODE CONDUCTS DURING AN INITIAL PART, BUT NOT A SUBSEQUENT PART, OF THE
Claim 2
Dependent Claim
170 words
IN A DEFLECTION SYSTEM PROVIDING A DEFLECTION SIGNAL WITH TRACE AND RETRACE PORTIONS FOR A CATHODE RAY TUBE, SAID SYSTEM INCLUDING IN COMBINATION, A SWITCHING TRANSISTOR, MEANS FOR SUPPLYING PULSES TO SAID TRANSISTOR WITH A POLARITY TO CUT OFF SAID TRANSISTOR FOR THE RETRACE PORTION OF THE SIGNAL, DIRECT CURRENT POWER SUPPLY MEANS, DEFLECTION WINDING MEANS CONNECTED IN A CONDUCTIVE CIRCUIT WITH SAID TRANSISTOR IS CONDUCTIVE INITIALLY IN A REVERSE SO THAT SAID TRANSISTOR IS CONDUCTIVE INITIALLY IN A REVERSE DIRECTION AND SUBSEQUENTLY IN A FORWARD DIRECTION DURING THE TRACE PORTION FOR DEVELOPING A SAWTOOTH DEFLECTION CURRENT IN SAID WINDING MEANS SO THAT SAID WINDING MEANS MAY RING ON THE RETRACE PORTION, A DAMPING DIODE COMPOSED OF A DIFFERENT SEMICONDUCTOR MATERIAL THAN THAT OF SAID TRANSISTOR, MEANS CONNECTING SAID DIODE TO A REFERENCE POINT OF SAID POWER SUPPLY MEANS AND TO A TURN OF SAID WINDING MEANS REMOVED FROM THE CONNECTION THEREOF TO SAID TRANSISTOR WHEREBY SAID DIODE CONDUCTS DURING AN INITIAL PART, BUT NOT A SUBSEQUENT PART, OF THE
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |