公开(公告)号：FR2732845A1

公开(公告)日：1996-10-11

申请号：FR9603786

申请日：1996-03-27

Applicant: MOTOROLA INC

Inventor： PROCTOR LEE MICHAEL ,  NGUYEN QUOC ,  SCRIBANO GINO ANTHONY ,  WHEELER GREGORY KEITH

IPC: G01S19/25 ,  H04B7/26 ,  H04J3/06 ,  H04L7/08 ,  H04W56/00 ,  H04L27/00 ,  H04B14/00

Abstract: A method and system for time aligning a frame (60) in a communication network (10) involves the steps of: i) determining if a frame needs to be advanced at a BTS (14), and ii) sending a shortened synchronization pattern from the BSC (12). The BTS (14) then determines if a short or long synchronization pattern has been sent by determining (256) if the received data stream matches a long synchronization pattern and setting a first flag when they do match. If the received data stream does not match the long synchronization pattern and the first flag is set (264), the data stream is compared (266) to the short synchronization pattern. When they match a second flag is set (268).

公开(公告)号：CA2093744A1

公开(公告)日：1993-10-14

申请号：CA2093744

申请日：1993-04-08

Applicant: MOTOROLA INC

Inventor： ASHLEY JAMES P ,  NGUYEN QUOC

IPC: H04B3/23 ,  H04B7/015 ,  H04B3/20 ,  H04B3/21

公开(公告)号：SE9301184L

公开(公告)日：1993-10-14

申请号：SE9301184

申请日：1993-04-08

Applicant: MOTOROLA INC

Inventor： ASHLEY JAMESP ,  NGUYEN QUOC

IPC: H04B3/23 ,  H04B7/015

公开(公告)号：FR2732845B1

公开(公告)日：2000-04-21

申请号：FR9603786

申请日：1996-03-27

Applicant: MOTOROLA INC

Inventor： PROCTOR LEE MICHAEL ,  NGUYEN QUOC ,  SCRIBANO GINO ANTHONY ,  WHEELER GREGORY KEITH

IPC: G01S19/25 ,  H04B7/26 ,  H04J3/06 ,  H04L7/08 ,  H04W56/00 ,  H04L27/00 ,  H04B14/00

公开(公告)号：CA2093744C

公开(公告)日：1997-07-01

申请号：CA2093744

申请日：1993-04-08

Applicant: MOTOROLA INC

Inventor： ASHLEY JAMES P ,  NGUYEN QUOC

IPC: H04B3/23 ,  H04B7/015 ,  H04B3/20 ,  H04B3/21

Abstract: A method is described of decreasing convergence time in an adaptive echo canceller (20). The method includes the step of locating a primary echo within a filter vector based upon relative tap values within the filter vector. The filter vector is then narrowed, based upon the located taps. An estimated error is determined based, in part, upon the narrowed filter vector. An updated filter vector is produced based, in part, upon the estimated error.

公开(公告)号：FR2692089B1

公开(公告)日：1996-06-21

申请号：FR9304308

申请日：1993-04-13

Applicant: MOTOROLA INC

Inventor： ASHLEY JAMES P ,  NGUYEN QUOC

IPC: H04B3/23 ,  H04B7/015 ,  H04B7/26