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










Image Number 3 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
Medical diagnosis, therapy, and prognosis system for invoked events and methods thereof
Disposable and tamper-resistant RFID lock
Playback device for stereoscopic viewing, integrated circuit, and program
Apparatus and method for connection control with media negotiation successful on different media formats
Reception system including a mechanism countering pulsed interference
Vehicle grille
Wire guide
  Randomly Featured Patents
Communication equipment, communication system, and communication method
Rubber vulcanizing agents comprising reaction products of sulfur and unsaturated hydrocarbons
Method and system for sorting internet music files, searching method and searching engine
Safety apparatus for arresting a fall of a worker
Printhead integrated circuit with low voltage thermal actuators
Elongate barrier system for use with lawn mower decks
Method, apparatus, and system for using a synchronous burst time plan in a communication network
Rotary hydraulic machine
Multi-channel self-correcting connector
Method and apparatus for improving swimming pool skimmer efficiency