Resources Contact Us Home
High resolution filtering using low resolution processors

Image Number 2 for United States Patent #5319585.

A high-speed digital filter with a large dynamic range is constructed by operating two low-resolution filters in parallel, which is referred to as an "overlap" mode of operation. In this overlap mode of operation, both low-resolution adaptive filters operate on the input data simultaneously, however, the characteristics of both filters are controlled so that one filter performs a coarse level of filtering, while the other filter performs a finer level of filtering and also removes any errors introduced by the first filter. Some application examples include echo canceling, equalization, and deghosting filters.

  Recently Added Patents
Mobile terminal apparatus, radio base station apparatus and radio communication method
Making transparent capacitor with multi-layer grid
Method for remotely measuring fluctuations in the optical index of refraction of a medium
Formation of an optical waveguide
Electronic system with vertical intermetallic compound
Electrical terminal
Optical navigation device with image sensor and inner housing
  Randomly Featured Patents
Topical containing aminocaproic acid for preventing secondary hemorrhage following hyphema
Sinus delivery of sustained release therapeutics
Vertical NAND flash memory array
Ultrasonic sensor
Thin film magnetic head having toroidally wound coil
Outboard motor support frame
Camera module and portable terminal equipped with the camera module
Seismic switch for strong motion measurement
Reinforcing band structure for cathode ray tube
Epoxy-steroidal aldosterone antagonist and angiotensin II antagonist combination therapy