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
Computer system for routing package deliveries
Polarized film apparatus with bands of alternating orientation
Image forming apparatus
Digital processing method and system for determination of optical flow
Film-forming resins as a carrier for topical application of pharmacologically active agents
System and method for supporting fibre channel over ethernet communication
Apparatus and method to reduce noise in magnetic resonance imaging systems
  Randomly Featured Patents
Fluid cylinder cushioning system
Organic light emitting display and fabrication method thereof
Cross flow hand drier
Switch
Fill slat assembly for cooling towers
Method for electrochemical detection
Adaptive spectral sensor and methods using same
Non-stalling circular counterflow pipeline processor with reorder buffer
Method and apparatus for power reduction in switched capacitor circuits
Speaker mounts for eyeglass with MP3 player