公开(公告)号：US3668570A

公开(公告)日：1972-06-06

申请号：US3668570D

申请日：1970-12-04

Applicant: IBM

Inventor： LAUTIER ALEX HONORE ,  MONROLIN JEAN LOUIS

IPC: H03H19/00 ,  H03H7/10

CPC classification number: H03H19/002

Abstract: An adaptive switched filter arrangement formed from two switched filters to each of which is applied the same input signal. The first switched filter is switched at an independent predetermined frequency. The second switched filter, however, is tuned by the output frequency extracted by the first filter. This minimizes phase tracking time and cancels systematic phase error.

Abstract translation: 由两个开关滤波器形成的自适应开关滤波器装置，其中每个开关滤波器施加相同的输入信号。 第一个开关滤波器以独立的预定频率切换。 然而，第二开关滤波器由第一滤波器提取的输出频率调谐。 这样可以最大限度地减少相位跟踪时间并消除系统相位误差。

公开(公告)号：US3577082A

公开(公告)日：1971-05-04

申请号：US3577082D

申请日：1969-03-05

Applicant: IBM

Inventor： LAUTIER ALEX HONORE ,  NUSSBAUMER HENRI JEAN ,  PIERRET JEAN MARC

IPC: H04B1/68 ,  H04L27/06 ,  H04B1/16

CPC classification number: H04B1/68 ,  H04L27/066

Abstract: A phase synchronizing device for the carrier of a single sideband transmission system. Two pilot frequencies are transmitted with the synchronization signal and are decoded at the receiver to provide a signal indicating the correct phase of the demodulating carrier signal. The transmitted carrier signal controls the frequency of an oscillator and the initial phase of the regenerated carrier signal is set a the start of reception by the decoded pilot signals.

公开(公告)号：DE2823213A1

公开(公告)日：1978-12-14

申请号：DE2823213

申请日：1978-05-27

Applicant: IBM

Inventor： LAUTIER ALEX HONORE ,  MONROLIN JEAN LOUIS

IPC: H04L27/22 ,  H04L27/227

公开(公告)号：GB1200570A

公开(公告)日：1970-07-29

申请号：GB86169

申请日：1969-01-07

Applicant: IBM

Inventor： NUSSBAUMER HENRI JEAN ,  LAUTIER ALEX HONORE ,  PIERRET JEAN MARC

IPC: H04J1/06 ,  H04L27/06 ,  H04L27/32