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
Error scanning in flash memory
Circuit for compressing data and a processor employing same
Regenerative power storage system mounted on DC electric railway car
Ventilated vacuum commutation structure
Taxi cab key chain
Sensing during magnetic resonance imaging
Thermoplastic resin composition
  Randomly Featured Patents
2-Haloethylsulfonyl photographic hardener compounds, compositions, articles and preparation processes
Method and apparatus for a wireless hearing aid antenna
Full-scene anti-aliasing method and system
Sprocket for chain
Microelectronic device interconnects
Method and device for regulating intravenous flow
Method of testing and diagnosing field programmable gate arrays
Naming scheme for media storage
Self-identifying stacked die semiconductor components
Method and system for injecting a pilot fuel into a combustion chamber