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
Efficient file system metadata scanning using scoped snapshots
Temporal document trainer and method
Switchable solvents and methods of use thereof
System and method for converting biomass to ethanol via syngas
Use of natriuretic peptide for treating heart failure
Methods for diagnosing irritable bowel syndrome
Vehicle speed verification system and method
  Randomly Featured Patents
Stabilizer mixture composed of chroman derivatives, organic phosphites or phosphonites and amines
Stimulation mode for cochlear implant speech coding
Device for the production of crystal rods having a defined cross-section and column-shaped polycrystallization structure by means of floating-zone continuous crystallization
Cartridge and shutter used in the same
Cable end fitting retainer assembly
Method for the production of niobium and tantalum powder
Travel time calculating method and traffic information display method for a navigation device
Direct to chuck coolant delivery for integrated circuit testing
Amino substituted pyrimidine containing compounds
Power tongs with improved hydraulic drive