US3830959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic centering control system for television apparatus
Assignee: RCA Corp
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Filing: 1973-03-23
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Granted: 1974-08-20
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Expires: 1993-03-23
Abstract
Abstract The described control system provides automatic registration of colors for television reproduction by comparing individual horizontal and vertical color components of an object scene, and by developing output control voltages whenever mis-registration occurs. The horizontal and vertical components of one such color are periodically compared against themselves at different points in the system to provide a further control signal indicative of differences in the translation characteristics of the comparison channels utilized.
Inventors
- 👤 R Dischert
- 👤 J Monahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:58
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10; H04N23/13; H04N23/15
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
193 words
An automatic centering control system for the electron scanning beams of television apparatus comprising: means for supplying signal information representative of television programming of a first color content; means for supplying signal information representative of said same television programming, and of a second color content; means responsive to said second color content signal information for providing third and fourth signal informations, advanced and delayed in time with respect to said signal information corresponding to said second color content signal; means, including a switch, for processing said first, second, third and fourth signal informations to provide, for one position of said switch, a control signal indicative of timing differences between corresponding portions of said first and third signal informations and of said first and fourth signal informations, and for another position of said switch, a control signal indicative of timing differences between corresponding portions of said second and third signal informations and of said second and fourth signal informations; and utilization means coupled to said processing means for applying said control signal to the deflection circuits of said television apparatus to stabilize the position of said beams and the resulting registry of said apparatus.
Claim 2
Dependent Claim
193 words
An automatic centering control system for the electron scanning beams of television apparatus comprising: means for supplying signal information representative of television programming of a first color content; means for supplying signal information representative of said same television programming, and of a second color content; means responsive to said second color content signal information for providing third and fourth signal informations, advanced and delayed in time with respect to said signal information corresponding to said second color content signal; means, including a switch, for processing said first, second, third and fourth signal informations to provide, for one position of said switch, a control signal indicative of timing differences between corresponding portions of said first and third signal informations and of said first and fourth signal informations, and for another position of said switch, a control signal indicative of timing differences between corresponding portions of said second and third signal informations and of said second and fourth signal informations; and utilization means coupled to said processing means for applying said control signal to the deflection circuits of said television apparatus to stabilize the position of said beams and the resulting registry of said apparatus.
Claim 3
Dependent Claim
38 words
The system of claim 1 wherein said signal information processing means provides control signals indicative of timing differences between corresponding horizontal component portions of said first and third signal informations and of said first and fourth signal informations.
Claim 4
Dependent Claim
38 words
The system of claim 1 wherein said signal information processing means provides control signals indicative of timing differences between corresponding vertical component portions of said first and third signal informations and of said first and fourth signal informations.
Claim 5
Dependent Claim
21 words
The system of claim 1 wherein said first and second supply means supply signal informations representative of different color signal contents.
Claim 6
Dependent Claim
33 words
The system of claim 4 wherein said first supply means supplies signal informations representative of red color signal contents and said second supply means supplies signal informations representative of green color signal contents.
Claim 7
Dependent Claim
33 words
The system of claim 4 wherein said first supply means supplies signal informations representative of blue color signal contents and said second supply means supplies signal informations representative of green color signal contents.
Claim 8
Dependent Claim
22 words
The system of claim 1 wherein said first and second supply means supply signal informations representative of the same color signal contents.
Claim 9
Dependent Claim
21 words
The system of claim 7 whereiN said first and second supply means supply signal informations representative of green color signal contents.
Claim 10
Dependent Claim
142 words
The system of claim 1 wherein said processing means includes: means for subtracting said first signal information content from said third signal information content to provide a fifth signal information content; means for subtracting said fourth signal information content from said first signal information content to provide a sixth signal information content; means for subtracting said sixth signal information content from said fifth signal information content to provide a seventh signal information content; means for subtracting said fifth signal information content from said sixth signal information content to provide an eighth signal information content; means for subtracting said eighth signal information content from said seventh signal information content to provide a ninth signal information content; and means responsive to said ninth signal information component to provide a control signal indicative of different energy contents between opposite polarity excursions in its signal energies.
Claim 11
Dependent Claim
52 words
The system of claim 9 wherein said last-mentioned means includes means for providing a control voltage of a first level when said opposite polarity energy contents are identical, and of second and third varying levels dependent upon the direction and degree of differences in the energy contents of said opposite polarity excursions.
References Cited (Backward Citations)
GB1266336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |