Boots – shoes – and leggings
Patent
1987-01-16
1989-08-08
Lall, Parshotam S.
Boots, shoes, and leggings
364525, 36457107, 340703, 355 20, 358244, G03B 1500, G03B 2780, G03B 3306
Patent
active
048559407
ABSTRACT:
A method of and system for defining and photographing computer graphic images involves using photographic exposure adaptor (PXA) circuitry, providing an interface between a computer having a CPU and a film printer. The interface circuitry includes a page register. A cathode ray tube controller is operatively arranged to provide address, vertical synchronization and horizontal synchronization signals when an image is being displayed on a CRT in the film printer. A display random access memory array is operatively arranged to be filled with pixel data under control of the CPU. When an image is to be displayed, control of the array is given to the controller. A multiplexer selects addressing lines to the array. A display random access memory data buffer enables output from the array to be placed on the internal data bus. An exposure mapping table is operatively arranged to be accessed by either the CPU or the controller. An address multiplexer supplies addresses from either output from the array or from an internal address bus on which appears output from the system interface. A bidirectional exposure mapping table data buffer allows locations in the mapping table to be read by the CPU. Output from the table is fed to a pixel shift register which generates video data. The system is used to carry out methods whch allow color resolution to be exchanged for spatial resolution, different resolutions to be achieved and image storage requirements made to depend on exposure time.
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"Film Recorders Product Comparison" publication by Furger et al., in Info World 3/21/88, pp. 53-59.
Grabel Vernon
Kowalik Joseph T.
Richardson Thomas L.
Gaffey James R.
Lall Parshotam S.
Melnick S. A.
Polaroid Corporation
Roman Edward S.
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