US3621137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-span pattern generator
Assignee: Alphanumeric Inc
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Filing: 1969-03-28
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Granted: 1971-11-16
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Expires: 1989-03-28
Abstract
Abstract A method and apparatus for positioning at least one terminal point of the scan of a medium by a beam is disclosed. The beam is moved in the direction of the scan from one point past a fiducial point having a known position with respect to the medium. There is registered a quantity related to the distance the beam moved from one point to the fiducial point. Thereafter, during scans of the medium, the one terminal point is shifted along the direction of the scan by a distance related to the registered quantity.
Inventors
- 👤 Solomon Manber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:02
CPC Classifications
B; B41; B41B; B41B19/00; B41B19/01; B41B21/00; B41B21/16; B41B27/00; B41B27/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
90 words
The method of registering the adjacent terminal points of at least two longitudinally adjacent scans along the same line of an energy-absorbing medium by a beam of energy by periodically measuring the degree of longitudinal misregistration of the adjacent end points of said longitudinally adjacent scans, recording a quantity related to the measured degree of longitudinal misregistration, and shifting the start or end of at least one of said longitudinally adjacent scans by an amount related to the recorded quantity each time the said longitudinally adjacent scans are sequentially performed.
Claim 2
Independent Claim
90 words
The method of registering the adjacent terminal points of at least two longitudinally adjacent scans along the same line of an energy-absorbing medium by a beam of energy by periodically measuring the degree of longitudinal misregistration of the adjacent end points of said longitudinally adjacent scans, recording a quantity related to the measured degree of longitudinal misregistration, and shifting the start or end of at least one of said longitudinally adjacent scans by an amount related to the recorded quantity each time the said longitudinally adjacent scans are sequentially performed.
Claim 3
Independent Claim
116 words
The method of recording a line of patterns on recording medium comprising the steps of generating the patterns form a single source, projecting a first portion of the line of patterns, via a first optical path, to a first half of the record medium, projecting a second portion of the line of patterns, via a second optical path, to a second half of the record medium, and displacing along the direction of said line the images of the patterns projected via at least one of said optical paths by a distance related to any possible misregistration, at the demarcation of the halves of the record medium, of the images projected thereon via the different optical paths.
Claim 4
Independent Claim
116 words
The method of recording a line of patterns on recording medium comprising the steps of generating the patterns form a single source, projecting a first portion of the line of patterns, via a first optical path, to a first half of the record medium, projecting a second portion of the line of patterns, via a second optical path, to a second half of the record medium, and displacing along the direction of said line the images of the patterns projected via at least one of said optical paths by a distance related to any possible misregistration, at the demarcation of the halves of the record medium, of the images projected thereon via the different optical paths.
Claim 5
Independent Claim
160 words
The method of registering the adjacent terminal points of at least two adjacent scans of a record medium by a recording beam which scans a first portion of the record medium via a first path and scans a second portion of the record medium via a second path comprising the steps providing a fiducial point related to an intermediate point of said two adjacent pArtial scans, performing at least a first partial scan with said recording beam via said first path, registering a first parameter related to the position of said first partial scan when said recording beam is detected crossing said fiducial point, performing at least a second partial scan with said recording beam, registering a second parameter related to the position of said second partial scan when said recording beam is detected crossing said fiducial point, and displacing the adjacent terminal of at least one of the two adjacent scans in accordance with the difference of said parameters.
Claim 6
Independent Claim
160 words
The method of registering the adjacent terminal points of at least two adjacent scans of a record medium by a recording beam which scans a first portion of the record medium via a first path and scans a second portion of the record medium via a second path comprising the steps providing a fiducial point related to an intermediate point of said two adjacent pArtial scans, performing at least a first partial scan with said recording beam via said first path, registering a first parameter related to the position of said first partial scan when said recording beam is detected crossing said fiducial point, performing at least a second partial scan with said recording beam, registering a second parameter related to the position of said second partial scan when said recording beam is detected crossing said fiducial point, and displacing the adjacent terminal of at least one of the two adjacent scans in accordance with the difference of said parameters.
Claim 7
Dependent Claim
113 words
Apparatus for recording lines of patterns on a photosensitive medium comprising means for generating successive lines of patterns of radiation, image projection means for sequentially projecting the first half of each line onto one half of the photosensitive medium and the second half of each line onto the other half of the photosensitive medium, means for sensing for possible misregistration of the patterns projected on one half of the photosensitive medium with respect to the patterns projected on the other half of the photosensitive medium, and means responsive to said sensing means for shifting in the direction of said line the lines of patterns projected onto at least one-half of the photosensitive medium.
Claim 8
Dependent Claim
113 words
Apparatus for recording lines of patterns on a photosensitive medium comprising means for generating successive lines of patterns of radiation, image projection means for sequentially projecting the first half of each line onto one half of the photosensitive medium and the second half of each line onto the other half of the photosensitive medium, means for sensing for possible misregistration of the patterns projected on one half of the photosensitive medium with respect to the patterns projected on the other half of the photosensitive medium, and means responsive to said sensing means for shifting in the direction of said line the lines of patterns projected onto at least one-half of the photosensitive medium.
Claim 9
Dependent Claim
20 words
The method of claim 2 wherein the image displacement is performed by displacing the position where the patterns are generated.
Claim 10
Dependent Claim
87 words
The apparatus of claim 4 wherein said generating means includes a cathode-ray tube assemblage with a screen and electron beam deflection means responsive to signals with the patterns being traced on the screen by the electron beam and said shifting means includes means for superimposing on the signals which deflect the electron beam in a given direction related to the direction of the line of characters a constant-amplitude signal during the generation of the lines of patterns which are projected onto said one-half of the photosensitive medium.
Claim 11
Dependent Claim
23 words
The apparatus of claim 4 wherein said generating means is a cathode-ray tube assemblage and said image projection means includes a rotatable mirror.
Claim 12
Dependent Claim
61 words
The apparatus of claim 4 wherein said sensing means includes an image-sensing means having a given position with respect to said photosensitive medium, means for scanning an image from a starting position past said image sensing means and means responsive to said image sensing means for registering a quantity related to the distance from said starting position to said given position.
Claim 13
Dependent Claim
258 words
Apparatus for recording a line of patterns on a photosensitive medium comprising a cathode ray tube assemblage having a screen and an electron beam and including at least means for deflecting the electron beam in at least one direction across the screen of the cathode-ray tube and means for intensity modulating the electron beam, optical projection means for alternately projecting the image of the screen of the cathode-ray tube via a first optical path onto the first half of the photosensitive medium, or via a second optical path onto the second half of the photosensitive medium, a photosensitive detector having a given position with respect to the width dimension of the photosensitive medium, test control means operative on said deflecting means and said optical projection means for causing said deflecting means to deflect the electron beam to scan at least once in said one direction starting from a given point on said screen and for causing said optical projection means to project, via the first optical path, the image of the scan to move past said photosensitive detector, means for registering a first representation of the distance between the starting point of the scan and the point where the scan is detected by said photosensitive detector, means for generating a correction deflection signal having a value related to said first representation registered by said registering means, and means for applying said correction deflection signal to said deflecting Means when the image of said screen is projected onto the photosensitive medium via a particular one of the optical paths.
Claim 14
Dependent Claim
258 words
Apparatus for recording a line of patterns on a photosensitive medium comprising a cathode ray tube assemblage having a screen and an electron beam and including at least means for deflecting the electron beam in at least one direction across the screen of the cathode-ray tube and means for intensity modulating the electron beam, optical projection means for alternately projecting the image of the screen of the cathode-ray tube via a first optical path onto the first half of the photosensitive medium, or via a second optical path onto the second half of the photosensitive medium, a photosensitive detector having a given position with respect to the width dimension of the photosensitive medium, test control means operative on said deflecting means and said optical projection means for causing said deflecting means to deflect the electron beam to scan at least once in said one direction starting from a given point on said screen and for causing said optical projection means to project, via the first optical path, the image of the scan to move past said photosensitive detector, means for registering a first representation of the distance between the starting point of the scan and the point where the scan is detected by said photosensitive detector, means for generating a correction deflection signal having a value related to said first representation registered by said registering means, and means for applying said correction deflection signal to said deflecting Means when the image of said screen is projected onto the photosensitive medium via a particular one of the optical paths.
Claim 15
Dependent Claim
117 words
The apparatus of claim 10 wherein said test control means causes the deflecting means to deflect the electron beam to scan at least a second time in said one direction starting from a given point and for causing said optical projecting means to project, via the second optical path, the image of the second scan to move past said photosensitive detector, said registering means further registering a second representation of the distance between the starting point of the second scan and the point where the second scan is detected by said photosensitive detector, and said correction deflection signal generation means generates the correction deflection signal in accordance with the relative values of said first and second representations.
Claim 16
Dependent Claim
26 words
The apparatus of claim 10 wherein the correction deflection signal has an amplitude related to the difference between the values of the first and second representations.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |