Resources Contact Us Home
Data input/output system

Image Number 13 for United States Patent #6901470.

A data I/O system includes first and second function blocks connected to a system bus, which allows the function blocks to communicate with a processor. Each function block includes a D/A converter for outputting an analog signal and a waveform generator that provides a digital signal to the D/A converter. The waveform generator includes a memory control circuit and an address generation circuit. The memory control circuit has an address register and a data register, both of which are connected to the system bus, and a memory connected to the address register and the data register. The address generation circuit is connected to the address register and includes a control register, an up-down counter, and a comparator. The address generation circuit repetitively provides a circulating address signal to the address register. The function blocks relieve the processor of some of its processing load, but do not require additional I/O port addresses of the system.

  Recently Added Patents
Permitting access of slave device from master device based on process ID's
Hybrid coatings and associated methods of application
Fluid pressure responsive electric switch
Analyte assaying by means of immunochromatography with lateral migration
Image heating apparatus
Focus information generating device and focus information generating method
Systems and methods for switching supply load current estimation
  Randomly Featured Patents
Shock-absorbing element for a motor vehicle
Method of polymerizing photo-polymerizable composition for dental use and dental light-curing apparatus for use therewith
Foamers for downhole injection
Signal generation system
Combined disc player and radio receiver
Golf ball with multiple sets of dimples
Video tape recorder
Grease composition
High temperature superconducting electric field effect device and a method for fabricating the same
Sabot and projectile