Patent US3089978A successfully refreshed from Google Patents.
US3089978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection circuit
Assignee: RCA Corp
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Filing: 1962-03-27
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Granted: 1963-05-14
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Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Sidney L Bendell
- 👤 William J Cosgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:27
CPC Classifications
H; H03; H03K; H03K6/00; H03K4/00; H03K4/06; H03K4/08; H04; H04N; H04N23/00; H04N23/10; H04N23/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
IN COMBINATION, AN ELECTROMAGNETIC DEFLECTION SYSTEM AND AN ELECTROSTATIC DEFLECTION SYSTEM, SAID ELECTROMAGNETIC DEFLECTION SYSTEM COMPRISING A DEFLECTION COIL THROUGH WHICH DEFLECTION CURRENT FLOWS, SAID CURRENT HAVING A WAVEFORM THAT HAS A FORWARD TRACE TIME PORTION SAID A RETURN TIME PORTION, MEANS FOR OBTAINING FROM SAID ELECTROMAGNETIC DEFLECTION SYSTEM A VOLTAGE HAVING A FOWARD TRACE TIME PORTION AND A RETURN TIME PORTION WITH THE FORWARD TRACE TIME PORTION BEING THE SAME AS THE FOWARD TRACE TIME PORTION OF SAID CURRENT, SAID ELECTROSTATIC DEFLECTION SYSTEM COMPRISING AN ADDING CIRCUIT, CIRCUIT MEANS TO WHICH THE VOLTAGE OBTAINED FROM SAID ELECTROMAGNETIC DEFLECTION SYSTEM IS APPLIED AND THROUGH WHICH THERE IS SUPPLIED TO SAID ADDING CIRCUIT A VOLTAGE HAVING A WAVEFORM IN WHICH A FORWARD TRACE TIME PORTION CORRESPONDS TO THE FORWARD TRACE TIME PORTION OF SAID FIRST-MENTIONED VOLTAGE, MEANS FOR GENERATING AND SUPPLYING TO SAID ADDING CIRCUIT A VOLTAGE WAVE THAT OCCURS DURING THE RETURN TIME PORTION OF SAID CURRENT WAVEFORM AND WHICH HAS A WAVESHAPE SUCH THAT WHEN IT IS ADDED TO THE VOLTAGE SUPPLIED FROM SAID CIRCUIT MEANS THERE IS OBTAINED A COMBINED WAVE HAVING A FORWARD TRACE TIME PORTION PART OF WHICH OCCURS DURING THE RETURN TIME PORTION OF SAID DEFLECTION CURRENT.
Claim 2
Dependent Claim
202 words
IN COMBINATION, AN ELECTROMAGNETIC DEFLECTION SYSTEM AND AN ELECTROSTATIC DEFLECTION SYSTEM, SAID ELECTROMAGNETIC DEFLECTION SYSTEM COMPRISING A DEFLECTION COIL THROUGH WHICH DEFLECTION CURRENT FLOWS, SAID CURRENT HAVING A WAVEFORM THAT HAS A FORWARD TRACE TIME PORTION SAID A RETURN TIME PORTION, MEANS FOR OBTAINING FROM SAID ELECTROMAGNETIC DEFLECTION SYSTEM A VOLTAGE HAVING A FOWARD TRACE TIME PORTION AND A RETURN TIME PORTION WITH THE FORWARD TRACE TIME PORTION BEING THE SAME AS THE FOWARD TRACE TIME PORTION OF SAID CURRENT, SAID ELECTROSTATIC DEFLECTION SYSTEM COMPRISING AN ADDING CIRCUIT, CIRCUIT MEANS TO WHICH THE VOLTAGE OBTAINED FROM SAID ELECTROMAGNETIC DEFLECTION SYSTEM IS APPLIED AND THROUGH WHICH THERE IS SUPPLIED TO SAID ADDING CIRCUIT A VOLTAGE HAVING A WAVEFORM IN WHICH A FORWARD TRACE TIME PORTION CORRESPONDS TO THE FORWARD TRACE TIME PORTION OF SAID FIRST-MENTIONED VOLTAGE, MEANS FOR GENERATING AND SUPPLYING TO SAID ADDING CIRCUIT A VOLTAGE WAVE THAT OCCURS DURING THE RETURN TIME PORTION OF SAID CURRENT WAVEFORM AND WHICH HAS A WAVESHAPE SUCH THAT WHEN IT IS ADDED TO THE VOLTAGE SUPPLIED FROM SAID CIRCUIT MEANS THERE IS OBTAINED A COMBINED WAVE HAVING A FORWARD TRACE TIME PORTION PART OF WHICH OCCURS DURING THE RETURN TIME PORTION OF SAID DEFLECTION CURRENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |