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
Soybean sequences associated with the FAP3 locus
Measuring apparatus for measuring a physical property of a sample
Portable electronic device holder and tether
Virtual links in a routed ethernet mesh network
Use of Lactobacillus for liver protection
Electronic device and control method therein
Pointing device, display apparatus and pointing system, and location data generation method and display method using the same
  Randomly Featured Patents
Process and intermediates for preparing lapatinib
Wireless communication method adapting priority for transmitting packets in WPAN
Method and apparatus for canceling a circuit switched fallback
Separation and transfer apparatus
Probe card including a multiplicity of probe contacts and method of making
System and method for wireless communication of uncompressed video having a composite frame format
Control apparatus, security-supported device, power source control method for security-supported device and program
Portable heater
Heuristics for determining source code ownership
High performance low cost video game system with coprocessor providing high speed efficient 3D graphics and digital audio signal processing