Resources Contact Us Home
Speech coding system

Image Number 19 for United States Patent #5245662.

A speech coding system operated under a known code-excited linear prediction (CELP) coding method. The CELP coding is achieved by selecting an optimum pitch vector P from an adaptive codebook and the corresponding first gain and, at the same time, selecting an optimum code vector from a sparse-stochastic codebook and the corresponding second gain. Special code vectors are loaded in the sparse-stochastic codebook, which code vectors are hexagonal lattice code vectors each consisting of a zero vector with one sample set to +1 and another sample set to -1.

  Recently Added Patents
Optical navigation device with image sensor and inner housing
Image processing system, image processing method and program for image processing
Stable pharmaceutical composition and methods of using same
Home appreciation participation notes
Method for operation of multi-layer-multi-turn high efficiency inductors
Fan guide
Shoe outsole with a surface ornamentation contrast
  Randomly Featured Patents
Implantable cardiac device with ischemia response capability
Control device for multi-stage turbochargers
Method of inotropic treatment of heart disease using hypothermia
Method for manufacturing semiconductor device
Image display apparatus
Electric vehicle having a battery configured for recharging via an on-board generator powered by renewal energy sources
Memory utilizing oxide-nitride nanolaminates
Roll-on applicator