US3643124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant speed vector generator utilizing a variable slope sawtooth generator
Assignee: TDK Micronas GmbH
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Filing: 1970-03-30
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Granted: 1972-02-15
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Expires: 1990-03-30
Abstract
Abstract A vector generator which produces a constant intensity trace on a viewing screen. A pair of output signals control the angle of a vector as it sweeps across the screen of a displaying tube. A first constant sawtooth output voltage is utilized to represent the first output signal and a second sawtooth output voltage, the slope of which is varied in proportion to the ratio of the input signal components is used to represent the second output signal.
Inventors
- 👤 Richard L Aiani
- 👤 Bill T Jones Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:58
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/22; G09; G09G; G09G1/00; G09G1/06; G09G1/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
102 words
A vector generator for producing a first output signal and a second output signal for controlling the angle of a vector having a first component and a second component as it sweeps across the screen from a first point to a second point on a display tube comprising: a first ramp generator producing a sawtooth output voltage, the slope of which is constant, representative of said first output signal; and a second ramp generator producing a sawtooth output voltage the slope of which is varied in proportion to the ratio of said components and is representative of said second output voltage signal.
Claim 2
Dependent Claim
102 words
A vector generator for producing a first output signal and a second output signal for controlling the angle of a vector having a first component and a second component as it sweeps across the screen from a first point to a second point on a display tube comprising: a first ramp generator producing a sawtooth output voltage, the slope of which is constant, representative of said first output signal; and a second ramp generator producing a sawtooth output voltage the slope of which is varied in proportion to the ratio of said components and is representative of said second output voltage signal.
Claim 3
Dependent Claim
38 words
A vector generator in accordance with claim 1 wherein a first input signal is produced representative of the magnitude of one of said components and a second input signal is produced representative of the other of said components.
Claim 4
Dependent Claim
32 words
A vector generator in accordance with claim 1 wherein offset voltage means are provided for initiating said sawtooth output voltages so as to compensate for nonlinear portions of said vector being displayed.
Claim 5
Dependent Claim
43 words
A vector generator in accordance with claim 2 wherein a velocity converter is provided whose input signals are representative of said vector components, said velocity converter including an operational amplifier having a variable gain in accordance with the ratio of said input signals.
Claim 6
Dependent Claim
40 words
A vector generator in accordance with claim 2 wherein said constant slope sawtooth voltage is terminated by means of an end point comparator when the magnitude of said sawtooth voltage substantially equals the magnitude of one of said input signals.
References Cited (Backward Citations)
US3325802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |