Computer graphics processing and selective visual display system – Data responsive crt display control – Combined with storage means
Patent
1995-05-05
1999-12-28
Saras, Steven J.
Computer graphics processing and selective visual display system
Data responsive crt display control
Combined with storage means
345 27, G06F 314, G09G 116
Patent
active
06008782&
ABSTRACT:
A mapping apparatus is disclosed for showing special effects on screen images. It contains: (a) a line address generator for generating a scanning line position data for every scanning line being processed; (b) a pointer array memory for storing a plurality of attribute addresses, each of the attribute addresses, which can be repeated, being arranged to correspond to one of the scanning lines in a sequential manner; (c) an attribute array memory for storing one or more attribute entries, wherein each of the attribute entries is assigned an attribute address and contains attribute data to be associated with one or more of the scanning lines via the attribute address so as to allow special screen effects to be provided; (d) a multiplexer circuitry for multiplexing a scanning line being processed with one of the attribute entries in accordance with the attribute address corresponding to the scanning line being processed; and (e) a memory address generator for receiving output from the multiplexer means and generating a new memory address for every point of the scanning line being processed. This mapping apparatus allows a variety of special effects, such as window shiftings, reduction/enlargement, rotations, 3D effect, to be provided very cost-effectively with a very simple circuitry.
REFERENCES:
patent: 4203154 (1980-05-01), Lampson et al.
patent: 4309700 (1982-01-01), Kraemer
patent: 4570161 (1986-02-01), Kummer et al.
patent: 4754270 (1988-06-01), Murauchi
patent: 4841453 (1989-06-01), Finlay et al.
patent: 4874164 (1989-10-01), Miner et al.
patent: 4940970 (1990-07-01), Fujisaku
patent: 5109348 (1992-04-01), Pfeiffer et al.
patent: 5583985 (1996-12-01), Kohiyama et al.
Industrial Technology Research Institute
Liauh W. Wayne
Saras Steven J.
Suraci John
LandOfFree
Mapping apparatus for use with a cathode-ray tube controller for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mapping apparatus for use with a cathode-ray tube controller for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mapping apparatus for use with a cathode-ray tube controller for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2385543