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Patent Agency Ranking
公开(公告)号：DE2852253A1
公开(公告)日：1979-06-13
申请号：DE2852253
申请日：1978-12-02
Applicant: IBM
Inventor： EVANS PETER JOHN
Abstract: This specification describes image rotation hardware for allowing the displaying of an image stored in digital form in other than its originally stored orientation. In this hardware a word-organized image buffer stores a digital representation of a full image with each picture element (pel) of the full image being represented by a bit within the buffer. The buffer is divided into a plurality of square sections each storing a portion or subimage of the full image. Each section is nxn bits in size where n is the number of bits in a word stored in the buffer. The contents of each square section of the buffer can be transferred into an nxn storage array with first word organization, and then transferred back into the buffer with second word organization such that the subimage stored by the square section is rotated through 90 DEG .
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公开(公告)号：DE2629972A1
公开(公告)日：1977-01-27
申请号：DE2629972
申请日：1976-07-03
Applicant: IBM
Inventor： WILLIAMS CLIVE , EVANS PETER JOHN
Abstract: In a raster display device, such as a cathode-ray tube, in which the display is computed on-the-fly, such as in the raster vector generator type, when the computation of a line, or group of lines, exceeds a given period, the raster scan is halted until the computation is complete. The line at which the scan is halted is retraced at reduced brightness, and without modulation by video information overflow, is detected by coincidence of a computation signal and line sync.
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公开(公告)号：CH594934A5
公开(公告)日：1978-01-31
申请号：CH801076
申请日：1976-06-23
Applicant: IBM
Inventor： WILLIAMS CLIVE , EVANS PETER JOHN
Abstract: In a raster display device, such as a cathode-ray tube, in which the display is computed on-the-fly, such as in the raster vector generator type, when the computation of a line, or group of lines, exceeds a given period, the raster scan is halted until the computation is complete. The line at which the scan is halted is retraced at reduced brightness, and without modulation by video information overflow, is detected by coincidence of a computation signal and line sync.
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公开(公告)号：AU3983378A
公开(公告)日：1980-03-20
申请号：AU3983378
申请日：1978-09-13
Applicant: IBM
Inventor： EVANS PETER JOHN
Abstract: This specification describes image rotation hardware for allowing the displaying of an image stored in digital form in other than its originally stored orientation. In this hardware a word-organized image buffer stores a digital representation of a full image with each picture element (pel) of the full image being represented by a bit within the buffer. The buffer is divided into a plurality of square sections each storing a portion or subimage of the full image. Each section is nxn bits in size where n is the number of bits in a word stored in the buffer. The contents of each square section of the buffer can be transferred into an nxn storage array with first word organization, and then transferred back into the buffer with second word organization such that the subimage stored by the square section is rotated through 90 DEG .
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公开(公告)号：AU1611576A
公开(公告)日：1978-01-26
申请号：AU1611576
申请日：1976-07-22
Applicant: IBM
Inventor： WILLIAMS CLIVE , EVANS PETER JOHN
Abstract: In a raster display device, such as a cathode-ray tube, in which the display is computed on-the-fly, such as in the raster vector generator type, when the computation of a line, or group of lines, exceeds a given period, the raster scan is halted until the computation is complete. The line at which the scan is halted is retraced at reduced brightness, and without modulation by video information overflow, is detected by coincidence of a computation signal and line sync.
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