Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Frequency subband encoding apparatus










Image Number 11 for United States Patent #5588024.

The invention provides a frequency subband encoding apparatus wherein the amount of comparison operation processing of a bit allocator is minimized. A subband filter divides a PCM signal into and outputs a plurality of frequency subbands. A SMR calculator calculates, for each of the frequency subbands, an SMR which is a ratio between a signal level and a mask level. A bit allocator calculates a reference NMR which is a value obtained by subtracting, from an SMR of the entire frequency band, a S/N ratio calculated from a reference bit number to be allocated to one of the frequency subbands which exhibits a maximum SMR, and adjusts the reference NMR to perform bit allocation to the frequency subbands.








 
 
  Recently Added Patents
Under bump passive components in wafer level packaging
Campanula plant named `PKMM03`
Personal alarm device for headwear for proximity detection
Peptide vectors
Light-emitting diode devices
Motion control system and X-ray measurement apparatus
Method for detecting motion of an electrical device or apparatus
  Randomly Featured Patents
Laundry room clothes hanger
Brake booster with sleeve and detent retained pressure plate
Imidazolium cations and uses therefor
Photographic silver halide emulsion
Crawler belt for crawler motor vehicle
Thermoelectric devices and applications for the same
Tert-butyloxycarbonyl-L-tyrosyl-peptidoglycan monomer and .sup.125 I-labeled derivative thereof, their preparation and use
Electrochemical biosensor based on immobilized enzymes and redox polymers
Differential pressure detecting system
Electrically heated reactor for high temperature and pressure chemical reactions