US3244989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscilloscope sweep circuits
Assignee: HP Inc
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Filing: 1963-08-13
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Granted: 1966-04-05
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Expires: 1983-08-13
Abstract
No abstract record available.
Inventors
- 👤 Alan R Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:56
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/34; G01R13/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A SIGNALLING CIRCUIT FOR OPERATING ON AN INPUT SIGNAL, SAID CIRCUIT COMPRISING: A GENERATOR FOR PRODUCING A STAIRCASE SIGNAL AS A FUNCTION OF THE NUMBER OF TRIGGER PULSES APPLIED THERETO; A COMPARATOR HAVING AN OUTPUT CONNECTED TO SAID GENERATOR AND ADAPTED TO PRODUCE SAID TRIGGER PULSES IN RESPONSE TO SIGNALS APPLIED TO THE INPUTS THEREOF ATTAINING A PREDETERMINED RELATIONSHIP TO EACH OTHER; MEANS PRODUCING A RAMP SIGNAL FOR EACH SELECTED RECUR-RENCE OF SAID INPUT SIGNAL, THE AMPLITUDE EXCURSION
Claim 2
Dependent Claim
78 words
A SIGNALLING CIRCUIT FOR OPERATING ON AN INPUT SIGNAL, SAID CIRCUIT COMPRISING: A GENERATOR FOR PRODUCING A STAIRCASE SIGNAL AS A FUNCTION OF THE NUMBER OF TRIGGER PULSES APPLIED THERETO; A COMPARATOR HAVING AN OUTPUT CONNECTED TO SAID GENERATOR AND ADAPTED TO PRODUCE SAID TRIGGER PULSES IN RESPONSE TO SIGNALS APPLIED TO THE INPUTS THEREOF ATTAINING A PREDETERMINED RELATIONSHIP TO EACH OTHER; MEANS PRODUCING A RAMP SIGNAL FOR EACH SELECTED RECUR-RENCE OF SAID INPUT SIGNAL, THE AMPLITUDE EXCURSION
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |