Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Bit map image processing apparatus having hardware window function










Image Number 14 for United States Patent #4933877.

A bit map image processing apparatus includes a window detector for detecting a window position on a screen and a frame memory for storing image data. The frame memory has p 2-port memories each having an l bits.times.m (column).times.n (row) memory area. Each row of the two-dimensional memory area of the frame memory is divided and managed in units of l.multidot.p bits. The apparatus further has a first multiplexer for selecting as a read memory address one of a background memory address and a window memory address in accordance with a detection result of the window detector, a second multiplexer for selecting as a memory address one of read address output from the first multiplexer and a write address input thereto in accordance with the detection result of the window detector, an address converter for converting the memory address output from the second multiplexer into individual memory addresses for each 2-port memory, and a shift register section for converting into serial data the image data output in units of l bits from the p 2-port memories in accordance with the individual memory addresses.








 
 
  Recently Added Patents
Base for a lifting apparatus
Adapting bit error rate to a target quality of service
Multi-lidded dispensing cartridge system
Moving picture processing apparatus, moving picture processing method, and program
Dynamic, set driven, ribbon, supporting deep merge
Tracking an object with multiple asynchronous cameras
Combination therapy for dementia, depression and apathy
  Randomly Featured Patents
Two-phase stainless steel
Apparatus for making soap with orifice plate and trimmer plate
Tryptophanyl-tRNA synthetase-derived polypeptides useful for the regulation of angiogenesis
Filter for the removal of particulate and vaporous mercury
Watchband bottle opener
Particle filled resinous product of improved appearance
Efficient memory usage in systems including volatile and high-density memories
System and method for resolving conflicts in multiple simultaneous communications in a wireless system
Surgical orthopedic back support garment
Esters of 7-sulfenyliminocephem-4-carboxylic acids