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










Image Number 7 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
Tread portion of an automobile tire
Ion implantation method and ion implantation apparatus
Recombinant vectors for use in position-independent transgene expression within chromatin
Collaborative computing community role mapping system and method
Disk array apparatus and firmware update method therefor
Method and apparatus for wireless communication in a mesh network with central control of communication relationships
Vacuum cleaner
  Randomly Featured Patents
Printer and printing method
Compressed video data recording method and recording apparatus providing improved performance during variable-speed playback
Ultra fine dead sea mineral compound and method of manufacture
Laser triggered high voltage rail gap switch
Optical disc apparatus and offset adjustment method thereof
Random access memory (RAM) method of operation and device for search engine systems
Patient support apparatus having a motorized wheel
Glass fibers coated with compositions containing complex organo silicon compounds
Heterogeneous content channel manager for ubiquitous computer software systems
Water conservation system