US3242434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trigger sweep circuit of a cathode-ray oscilloscope
Assignee: Yokogawa Electric Corp
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Filing: 1962-08-08
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Granted: 1966-03-22
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Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Katakami Morisaburo
- 👤 Nishida Masahide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:45
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A TRIGGER SWEEP CIRCUIT FOR A CATHODE-RAY OSCILLOSCOPE COMPRISING (A) A TRIGGER AMPLIFIER CIRCUIT DISPOSED FOR CONNECTION TO AN INPUT SIGNAL, (B) A TRIGGER SHAPE CIRCUIT CONNECTED TO AN OUTPUT OF SAID TRIGGER AMPLIFIER CIRCUIT AND HAVING A PULSE SIGNAL OUTPUT, (C) A SWEEP GATE CIRCUIT HAVING FIRST AND SECOND INPUTS WITH SAID FIRST INPUT CONNECTED TO SAID PULSE SIGNAL OUTPUT, (D) A GENERATOR CIRCUIT CONNECTED TO AN OUTPUT OF SAID SWEEP GATE CIRCUIT AND HAVING A SWEEP WAVE OUTPUT, (E) A HOLD-OFF CIRCUIT CONNECTED BETWEEN SAID SWEEP WAVE OUTPUT AND SAID FIRST INPUT OF SAID SWEEP GATE CIRCUIT, (F) A REFERENCE VOLTAGE SETTING CIRCUIT HAVING FIRST AND SECOND OUTPUTS WITH SAID FIRST OUTPUT CONNECTED TO SAID SECOND INPUT OF SAID SWEEP GATE CIRCUIT, AND (G) A TRIGGER GATE CIRCUIT CONNECTED BETWEEN SAID SECOND OUTPUT OF SAID REFERENCE VOLTAGE SETTING CIRCUIT AND SAID FIRST INPUT OF SAID SWEEP GATE CIRCUIT.
Claim 2
Dependent Claim
150 words
A TRIGGER SWEEP CIRCUIT FOR A CATHODE-RAY OSCILLOSCOPE COMPRISING (A) A TRIGGER AMPLIFIER CIRCUIT DISPOSED FOR CONNECTION TO AN INPUT SIGNAL, (B) A TRIGGER SHAPE CIRCUIT CONNECTED TO AN OUTPUT OF SAID TRIGGER AMPLIFIER CIRCUIT AND HAVING A PULSE SIGNAL OUTPUT, (C) A SWEEP GATE CIRCUIT HAVING FIRST AND SECOND INPUTS WITH SAID FIRST INPUT CONNECTED TO SAID PULSE SIGNAL OUTPUT, (D) A GENERATOR CIRCUIT CONNECTED TO AN OUTPUT OF SAID SWEEP GATE CIRCUIT AND HAVING A SWEEP WAVE OUTPUT, (E) A HOLD-OFF CIRCUIT CONNECTED BETWEEN SAID SWEEP WAVE OUTPUT AND SAID FIRST INPUT OF SAID SWEEP GATE CIRCUIT, (F) A REFERENCE VOLTAGE SETTING CIRCUIT HAVING FIRST AND SECOND OUTPUTS WITH SAID FIRST OUTPUT CONNECTED TO SAID SECOND INPUT OF SAID SWEEP GATE CIRCUIT, AND (G) A TRIGGER GATE CIRCUIT CONNECTED BETWEEN SAID SECOND OUTPUT OF SAID REFERENCE VOLTAGE SETTING CIRCUIT AND SAID FIRST INPUT OF SAID SWEEP GATE CIRCUIT.
References Cited (Backward Citations)
US2924712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |