US4011506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
TV service triggered oscilloscope
Assignee: Individual
•
Filing: 1975-02-12
•
Granted: 1977-03-08
•
Expires: 1995-02-12
Abstract
Abstract There is described a triggered sweep oscilloscope for television service use employing sync pulse triggered internal sweep circuits selected by push buttons on the front panel of the instrument.
Inventors
- 👤 Ralph H. Bowden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:03
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/32
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
169 words
An oscilloscope for use in television servicing, comprising an amplifier for amplifying a television signal, sync separator means coupled to the output of said amplifier for separating the horizontal and vertical sync pulses therefrom, said separator means having a first output at which said horizontal sync pulses appear and a second output at which said vertical sync pulses appear, trigger pulse shaping means, switch means for coupling the separated horizontal or vertical sync pulses to said trigger pulse shaping means or for coupling the output of said amplifier to said trigger pulse shaping means, a ramp wave generator, means coupling the output from said shaping means to said ramp generator to synchronize the ramp wave with the shaped pulses, means operative only when the output of said amplifier is connected to said trigger pulse shaping means for adjustably varying the speed of the ramp wave generated by said ramp wave generator, and means for driving one set of deflection plates in a cathode ray tube with said ramp wave.
Claim 2
Dependent Claim
169 words
An oscilloscope for use in television servicing, comprising an amplifier for amplifying a television signal, sync separator means coupled to the output of said amplifier for separating the horizontal and vertical sync pulses therefrom, said separator means having a first output at which said horizontal sync pulses appear and a second output at which said vertical sync pulses appear, trigger pulse shaping means, switch means for coupling the separated horizontal or vertical sync pulses to said trigger pulse shaping means or for coupling the output of said amplifier to said trigger pulse shaping means, a ramp wave generator, means coupling the output from said shaping means to said ramp generator to synchronize the ramp wave with the shaped pulses, means operative only when the output of said amplifier is connected to said trigger pulse shaping means for adjustably varying the speed of the ramp wave generated by said ramp wave generator, and means for driving one set of deflection plates in a cathode ray tube with said ramp wave.
Claim 3
Dependent Claim
47 words
An oscilloscope according to claim 1 comprising means causing said amplifier to be overdriven when the output of said amplifier is coupled to said trigger pulse shaping means, and to operate in a linear mode when said sync pulses are coupled to said trigger pulse shaping means.
Claim 4
Dependent Claim
13 words
An oscilloscope according to claim 2 wherein said switch means is pushbutton operated.
Claim 5
Dependent Claim
35 words
An oscilloscope according to claim 2 further comprising means for applying a 60 Hz sweep signal to said deflection plates and for simultaneously disconnecting the output of said ramp wave generator from said deflection plates.
Claim 6
Dependent Claim
34 words
An oscilloscope according to claim 4 further comprising means for coupling an external sweep signal to said deflection plates and for simultaneously disconnecting the output of said ramp wave generator from said deflection plates.
Claim 7
Dependent Claim
30 words
An oscilloscope according to claim 5 further comprising gain control means for increasing the gain of said ramp generating means a predetermined amount, said gain control means being pushbutton operated.
Claim 8
Dependent Claim
65 words
An oscilloscope according to claim 2 comprising timing circuit means responsive to said switching means for causing said ramp wave to be provided at the television horizontal sweep speed when said horizontal sync pulses are coupled to said trigger pulse shaping means and to be provided at the television vertical sweep speed when said vertical sync pulses are coupled to said trigger pulse shaping means.
Claim 9
Dependent Claim
37 words
An oscilloscope according to claim 7 comprising adjustable variable speed sweep means for manually varying the time base of said ramp wave only when the output of said amplifier is coupled to said trigger pulse shaping means.
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) | 1980-03-07 | 1980-09-06 | 1981-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-07 | 1984-09-06 | 1985-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-07 | 1988-09-06 | 1989-03-08 | $7700.00 | Window Closed / Lapsed |