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
Microfluidic system incorporating a metal impregnated nanoporous material in a microfluidic pathway thereof
Oral care implement accessory
Tablet computer
Display screen with graphical user interface
Categorization of design rule errors
Magnetic detection of small entities
  Randomly Featured Patents
Tag detecting system, moving object detecting method, and entrance/exit management system
Home gateway server appliance
Electrostatic discharge protection circuit
Casino card games with one or more community cards
Strain reliever for electric plug-socket connection
Compression quick connect/disconnect rotating lug terminal
Non-contact charging module and reception-side and transmission-side non-contact charging apparatuses using the same
Phone number transmission between telephone devices
Standing seam roof assembly having increased sidelap shear capacity
IDC Socket connector