公开(公告)号：US07596493B2

公开(公告)日：2009-09-29

申请号：US11312005

申请日：2005-12-19

Applicant: Ravindra Singh ,  Anoop K. Krishna

Inventor： Ravindra Singh ,  Anoop K. Krishna

IPC: G10L19/12 ,  G10L19/00

CPC classification number: G10L19/107 ,  G10L2019/0013

Abstract: A method for performing a search of a codebook is provided. The codebook includes a plurality of tracks each having a plurality of even pulse positions. The method includes partitioning a codevector having a plurality of pulses into a first subset of pulses and a second subset of pulses. Each pulse is assignable to a pulse position in the codevector, and each pulse is associated with a shift bit for indicating an odd position. The method also includes performing a first search for determining a first set of possible pulse positions for the pulses in the codevector. The method further includes performing a second search for determining a second set of possible pulse positions for the pulses in the codevector. In addition, the method includes forming the codevector using the first and second sets of possible pulse positions.

Abstract translation: 提供了一种执行码本搜索的方法。 码本包括多个具有多个偶数脉冲位置的轨迹。 该方法包括将具有多个脉冲的码矢分成脉冲的第一子集和第二脉冲子集。 每个脉冲可分配给码向量中的脉冲位置，并且每个脉冲与用于指示奇数位置的移位相关联。 该方法还包括执行第一搜索以确定码矢中的脉冲的第一组可能的脉冲位置。 该方法还包括执行第二搜索以确定码矢中的脉冲的第二组可能的脉冲位置。 此外，该方法包括使用第一和第二组可能的脉冲位置形成码矢量。