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US4153915A Expired / Lapsed US ⏱️ 0.0 years remaining

Optical image modifier for distortion or other compensation

Assignee: United States Department of the Navy
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Filing: 1978-03-06
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Granted: 1979-05-08
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Expires: 1998-03-06
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Abstract

Abstract An optical image modifier is disclosed as comprising an adjustable reference clock signal generator which timely enables a sawtooth signal producing adjustable ramp generator and a voltage controlled frequency generator controlled thereby for producing a programmed frequency modulated signal which is, in turn, supplied to a preprogrammed signal generator and distributor. In response to said programmed frequency modulated signal, said generator-distributor produces and distributes a plurality of control signals to a charge coupled device - containing, in this particular instance, image sensors, transfer gates, one or more shift registers, a control gate, and an enabling amplifier - for the purpose of controlling the modification of any optical images (or other signals) sensed, transduced, stored, and read out thereby in accordance with a predetermined program that was effectively preset by the appropriate adjustments of the aforesaid reference clock and ramp generators. A low-pass filter or integrator may optionally be employed to smooth the output signal from said charge coupled device prior to its being displayed or recorded by any suitable readout.

Inventors

  • 👤 John C Mckechnie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 10:31
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/66

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US4013832A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-05-07 1982-11-06 1983-05-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-05-07 1986-11-06 1987-05-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-05-07 1990-11-06 1991-05-08 $7700.00 Window Closed / Lapsed

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