US3281532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television synchronizing generator
Assignee: General Electric Co
•
Filing: 1959-03-03
•
Granted: 1966-10-25
•
Expires: 1979-03-03
Abstract
No abstract record available.
Inventors
- 👤 Laurance M Leeds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:27
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
A TELEVISION SYNCHRONIZING GENERATOR COMPRISING AN OSCILLATOR OPERATING AT TWICE HORIZONTAL LINE RATE, A COUNT OF THREE COUNTER INPUT COUPLED TO SAID OSCILLATOR AND AN EIGHT STAGE BINARY COUNTER CONNECTED TO THE OUTPUT OF THE FIRST COUNTER, SAID EIGHT STAGE COUNTER BEING PRESET BY ITS OWN OUTPUT PULSES TO COUNT TO 175, AND LOGIC COUPLED TO SUCCESSIVE STAGES OF SAID EIGHT STAGE, COUNTER FOR CONTROLLING THE OPERATION OF BLANKING, VERTICAL DRIVE AND SYNCHRONIZING PULSES TIMED TO OCCUR AT SPECIFIED MOMENTS IN ACCORDANCE WITH THE NTSC STANDARDS.
Claim 2
Dependent Claim
86 words
A TELEVISION SYNCHRONIZING GENERATOR COMPRISING AN OSCILLATOR OPERATING AT TWICE HORIZONTAL LINE RATE, A COUNT OF THREE COUNTER INPUT COUPLED TO SAID OSCILLATOR AND AN EIGHT STAGE BINARY COUNTER CONNECTED TO THE OUTPUT OF THE FIRST COUNTER, SAID EIGHT STAGE COUNTER BEING PRESET BY ITS OWN OUTPUT PULSES TO COUNT TO 175, AND LOGIC COUPLED TO SUCCESSIVE STAGES OF SAID EIGHT STAGE, COUNTER FOR CONTROLLING THE OPERATION OF BLANKING, VERTICAL DRIVE AND SYNCHRONIZING PULSES TIMED TO OCCUR AT SPECIFIED MOMENTS IN ACCORDANCE WITH THE NTSC STANDARDS.
Claim 3
Dependent Claim
123 words
IN A SYSTEM FOR PRODUCING A COMPOSITE INTERLACETYPE SYNCHRONIZING SIGNAL INCLUDING HORIZONTAL, VERTICAL AND EQUALIZING PULSES, AN OSCILLATOR OPERATIVE AT THE REPETITION RATE OF THE VERTICAL AND EQUALIZING PULSES, A FREQUENCY DIVIDER CHAIN CONNECTED TO SAID OSCILLATOR AND INCLUDING ONE STAGE OPERATED AT A RATE EQUAL TO THE RECIPROCAL OF THE DURATION OF EACH TRAIN OF VERTICAL PULSES AND A FINAL STAGE OPERATED AT THE REPETITION RATE OF THE TRAINS OF VERTICAL AND EQUALIZING PULSES, A COINCIDENCE CIRCUIT HAVING A PLURALITY OF INPUTS CONNECTED TO SAID ONE STAGE, TO SAID FINAL STAGE AND TO AT LEAST ONE OTHER STAGE INTERMEDIATE SAID ONE STAGE AND SAID FINAL STAGE, AND MEANS CONTROLLED BY THE OUTPUT OF SAID COINCIDENCE CIRCUIT FOR GENERATING SAID COMPOSITE SYNCHRONIZING SIGNAL.
Claim 4
Dependent Claim
123 words
IN A SYSTEM FOR PRODUCING A COMPOSITE INTERLACETYPE SYNCHRONIZING SIGNAL INCLUDING HORIZONTAL, VERTICAL AND EQUALIZING PULSES, AN OSCILLATOR OPERATIVE AT THE REPETITION RATE OF THE VERTICAL AND EQUALIZING PULSES, A FREQUENCY DIVIDER CHAIN CONNECTED TO SAID OSCILLATOR AND INCLUDING ONE STAGE OPERATED AT A RATE EQUAL TO THE RECIPROCAL OF THE DURATION OF EACH TRAIN OF VERTICAL PULSES AND A FINAL STAGE OPERATED AT THE REPETITION RATE OF THE TRAINS OF VERTICAL AND EQUALIZING PULSES, A COINCIDENCE CIRCUIT HAVING A PLURALITY OF INPUTS CONNECTED TO SAID ONE STAGE, TO SAID FINAL STAGE AND TO AT LEAST ONE OTHER STAGE INTERMEDIATE SAID ONE STAGE AND SAID FINAL STAGE, AND MEANS CONTROLLED BY THE OUTPUT OF SAID COINCIDENCE CIRCUIT FOR GENERATING SAID COMPOSITE SYNCHRONIZING SIGNAL.
References Cited (Backward Citations)
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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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |