US4040087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic motion compensation for the pyroelectric vidicon
Assignee: United States Department of the Army
•
Filing: 1976-03-02
•
Granted: 1977-08-02
•
Expires: 1996-03-02
Abstract
Abstract An image motion correction is provided for a pyroelectric vidicon which pides a standard television video output signal.
Inventors
- 👤 John T. Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:28
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/49; H04; H04N; H04N23/00; H04N23/20; H04N23/23
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
An image correction circuit for a pyroelectric vidicon wherein a small area image is mechanically scanned over the much larger surface area of a sensing surface of the vidicon target comprising: a first signal commutator coupled to the video output of said vidicon means to sequentially channel the video output signal to a plurality of output terminals; and a first tapped delay line having a like plurality of large equal delay taps connected to said output terminals, so as to provide periodically decreasing delay for each frame of said video signal.
Claim 2
Dependent Claim
91 words
An image correction circuit for a pyroelectric vidicon wherein a small area image is mechanically scanned over the much larger surface area of a sensing surface of the vidicon target comprising: a first signal commutator coupled to the video output of said vidicon means to sequentially channel the video output signal to a plurality of output terminals; and a first tapped delay line having a like plurality of large equal delay taps connected to said output terminals, so as to provide periodically decreasing delay for each frame of said video signal.
Claim 3
Dependent Claim
57 words
A correction circuit according to claim 1 further comprising: a second commutator coupled to the output of said first delay line; and a second delay line with small equal delay taps coupled to the outputs of said second commutator each of said large delay taps providing an integral number of times the delay of said small taps.
Claim 4
Dependent Claim
41 words
A correction circuit according to claim 2 wherein the delay between taps on said first delay line is equal to the delay between the taps on said second delay line multiplied by the number of taps on said second delay line.
Claim 5
Dependent Claim
26 words
A correction circuit according to claim 1 wherein: said commutator is an integrated circuit signal demultiplexer and the line delay is an integrated CCD delay device.
References Cited (Backward Citations)
US2881248A
Cited
US3761615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |