US3842310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplying integrator circuit
Assignee: Singer Co
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Filing: 1972-11-20
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Granted: 1974-10-15
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Expires: 1992-11-20
Abstract
Abstract A voltage proportional to a power of the vertical deflection of the beam of a raster swept CRT is applied to the input of an integrator circuit. The integrator circuit is reset in response to a horizontal sync pulse provided by a sync generator whereby a product voltage proportional to the product of the power of the vertical deflection and the horizontal deflection of the beam is provided. Successive integrator circuits may be cascaded to provide voltages proportional to the product of powers of the vertical and horizontal deflections.
Inventors
- 👤 K Harf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:10
CPC Classifications
H; H03; H03K; H03K4/00; H03K6/00; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/22; H04N3/23; H04N3/233; H04N3/2335
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
231 words
Included in apparatus for continuously generating a raster on the viewing surface of a CRT wherein first and second repetitive sweep signals direct the electron beam of said CRT along two mutually perpendicular dimensions of said viewing surface such that for each raster generated a plurality of spaced parallel lines are traced across said viewing surface, said parallel lines being traced in response to a series of said first sweep signals and said spacing of said lines being in response to a single one of said second sweep signals; circuitry for providing a correction signal suitable for adjusting selected ones of the sweep signals, said correction signal being proportional to the product of a selected uncorrected sweep signal and a selected power of a selected uncorrected sweep signal comprising: pulse means for providing sync pulses, each sync pulse corresponding to a single sweep of one of said repetitive sweep signals; means for providing an input signal proportional to a selected one of an uncorrected repetitive sweep signal raised to a selected power; and integrating means for integrating said input signal during the time period between two successive sync pulses for producing an output signal from said integrating means corresponding to the product of said input signal and an uncorrected sweep signal for which said sync pulses correspond, said output signal suitable for use as a correction signal for selected sweep signals.
Claim 2
Dependent Claim
231 words
Included in apparatus for continuously generating a raster on the viewing surface of a CRT wherein first and second repetitive sweep signals direct the electron beam of said CRT along two mutually perpendicular dimensions of said viewing surface such that for each raster generated a plurality of spaced parallel lines are traced across said viewing surface, said parallel lines being traced in response to a series of said first sweep signals and said spacing of said lines being in response to a single one of said second sweep signals; circuitry for providing a correction signal suitable for adjusting selected ones of the sweep signals, said correction signal being proportional to the product of a selected uncorrected sweep signal and a selected power of a selected uncorrected sweep signal comprising: pulse means for providing sync pulses, each sync pulse corresponding to a single sweep of one of said repetitive sweep signals; means for providing an input signal proportional to a selected one of an uncorrected repetitive sweep signal raised to a selected power; and integrating means for integrating said input signal during the time period between two successive sync pulses for producing an output signal from said integrating means corresponding to the product of said input signal and an uncorrected sweep signal for which said sync pulses correspond, said output signal suitable for use as a correction signal for selected sweep signals.
Claim 3
Dependent Claim
31 words
Apparatus of claim 1 wherein said sweep signal raised to a selected power is that sweep signal mutually perpendicular to that sweep signal for which said series of sync pulses corresponds.
Claim 4
Dependent Claim
21 words
Apparatus of claim 1 wherein said input signal is proportional to said sweep signal raised at least to the second power.
Claim 5
Dependent Claim
34 words
The apparatus of claim 3 wherein saiD sweep signal raised to said at least second power is that sweep signal mutually perpendicular to that sweep signal for which said series of sync pulses corresponds.
Claim 6
Dependent Claim
221 words
Included in apparatus for continuously generating a raster on the viewing surface of a CRT wherein first and second repetitive sweep signals direct the electron beam of said CRT along two mutually perpendicular dimensions of said viewing surface such that for each raster generated a plurality of spaced parallel lines are traced across said viewing surface, said parallel lines being traced in response to a series of said first sweep signals and said spacing of said lines being in response to a single one of said second sweep signals; circuitry for providing a correction signal suitable for adjusting selected ones of the sweep signals, said correction signals being proportional to the product of an uncorrected first sweep signal and a selected power of an uncorrected second sweep signal comprising: pulse means for providing sync pulses, each sync pulse corresponding to a single sweep of said first repetitive sweep signal; means for providing an input signal proportional to said uncorrected second sweep signal raised to a selected power; and integrating means for integrating said input signal during the time period between two successive sync pulses for producing an output signal from said integrating means corresponding to the product of said input signal and said uncorrected first sweep signal, said output signal suitable for use as a correction signal for selected sweep signals.
Claim 7
Dependent Claim
221 words
Included in apparatus for continuously generating a raster on the viewing surface of a CRT wherein first and second repetitive sweep signals direct the electron beam of said CRT along two mutually perpendicular dimensions of said viewing surface such that for each raster generated a plurality of spaced parallel lines are traced across said viewing surface, said parallel lines being traced in response to a series of said first sweep signals and said spacing of said lines being in response to a single one of said second sweep signals; circuitry for providing a correction signal suitable for adjusting selected ones of the sweep signals, said correction signals being proportional to the product of an uncorrected first sweep signal and a selected power of an uncorrected second sweep signal comprising: pulse means for providing sync pulses, each sync pulse corresponding to a single sweep of said first repetitive sweep signal; means for providing an input signal proportional to said uncorrected second sweep signal raised to a selected power; and integrating means for integrating said input signal during the time period between two successive sync pulses for producing an output signal from said integrating means corresponding to the product of said input signal and said uncorrected first sweep signal, said output signal suitable for use as a correction signal for selected sweep signals.
Claim 8
Dependent Claim
21 words
Apparatus of claim 5 wherein said input signal is proportional to said sweep signal raised at least to the second power.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |