公开(公告)号：HK1054632A1

公开(公告)日：2003-12-05

申请号：HK03106819

申请日：2003-09-23

Applicant: QUALCOMM INC

Inventor： ULMER ELISHA J ,  STEIN JEREMY M

IPC: G06F11/10 ,  H03M13/25 ,  H03M13/41 ,  H03M ,  H04L

Abstract: A method and apparatus for normalizing a plurality of state-metric registers in a decoder using a trellis. The method includes determining an approximate minimum of respective state-metric values stored in the plurality of state-metric registers, and subtracting the approximate minimum from the values. Determining the approximate minimum preferably includes determining the minimum of a predetermined number of most significant bits in the plurality of state-metric registers.

公开(公告)号：AU1908900A

公开(公告)日：2000-05-22

申请号：AU1908900

申请日：1999-11-04

Applicant: QUALCOMM INC

Inventor： ULMER ELISHA J ,  STEIN JEREMY M

IPC: G06F11/10 ,  H03M13/25 ,  H03M13/41 ,  H03M13/00

Abstract: A method and apparatus for normalizing a plurality of state-metric registers in a decoder using a trellis. The method includes determining an approximate minimum of respective state-metric values stored in the plurality of state-metric registers, and subtracting the approximate minimum from the values. Determining the approximate minimum preferably includes determining the minimum of a predetermined number of most significant bits in the plurality of state-metric registers.

公开(公告)号：WO0027034A9

公开(公告)日：2002-03-07

申请号：PCT/US9926102

申请日：1999-11-04

Applicant: QUALCOMM INC

Inventor： ULMER ELISHA J ,  STEIN JEREMY M

IPC: G06F11/10 ,  H03M13/25 ,  H03M13/41 ,  H03M13/00

CPC classification number: H03M13/3905 ,  H03M13/4107 ,  H03M13/4146 ,  H03M13/6583

Abstract: A method and apparatus for normalizing a plurality of state-metric registers (30, 32, 34) in a decoder (20) using a trellis. The method includes determining an approximate minimum of respective state-metric values stored in the plurality of state-metric registers (30, 32, 34), and subtracting the approximate minimum from the values. Determining the approximate minimum preferably includes determining the minimum of a predetermined number of most significant bits in the plurality of state-metric registers (30, 32, 34).

Abstract translation: 一种用于使用格架对解码器（20）中的多个状态度量寄存器（30,32,34）进行归一化的方法和装置。 该方法包括确定存储在多个状态度量寄存器（30,32,34）中的各个状态度量值的近似最小值，并从该值中减去近似最小值。 确定近似最小值优选地包括确定多个状态度量寄存器（30,32,34）中预定数量的最高有效位的最小值。