Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Enhanced time-interleaved A/D conversion using compression










Image Number 14 for United States Patent #7893852.

Compression of signal samples output from a parallel, time-interleaved analog to digital converter (TIADC) for a baseband signal, includes calculating first or higher order differences of consecutive signal samples followed by lossless or lossy encoding of the difference samples to produce compressed samples. Compression of a TIADC output signal with a nonzero center frequency, includes calculating sums or differences of pairs of signal samples separated by an appropriate number of sampling intervals followed by lossless or lossy encoding. The sums or differences of the signal samples have lower magnitudes than the original samples, allowing more efficient compression. Lossy compression alternatives produce compressed data with a fixed bit rate or with a fixed quality in the decompressed samples. Alternatives for lossy compression include attenuating the analog signal before sampling by the TIADC, applying bit shifters or multipliers after sampling to reduce the magnitudes of the signal samples, and lossy encoding.








 
 
  Recently Added Patents
Blue phase liquid crystal display panel and liquid crystal display
Floor tile
Vermicomposter apparatus and method
Configurable status processing unit for sensor-actuator systems
Lithographic method and apparatus
Time synchronization of a plurality of different wireless networks with data sensors
Method for offline programming of an NC-controlled manipulator
  Randomly Featured Patents
Hexagonal semiconductor die, semiconductor substrates, and methods of forming a semiconductor die
Marking pen
Process for the manufacture of spectacle lenses made of diglycol allyl carbonate or the like
System and method for development, maintenance and modification of multiple web sites
Pen cap
Soluble salts containing sulphur
Low power JFET switch
Closing method and closing machine
Compositions and methods for inducing gene expression
Eccentric electrical cable connecting device