公开(公告)号：US3875340A

公开(公告)日：1975-04-01

申请号：US37616973

申请日：1973-07-03

Applicant: CIT ALCATEL

Inventor： ROY MARIE-ANNICK ,  CABET ALAIN ,  DESOMBRE PATRICE

IPC: H04J1/04 ,  H04J1/05

CPC classification number: H04J1/04 ,  H04J1/05

Abstract: Digital system which, from n voice frequency channels, furnishes a band of a frequency multiplex system, for example, a primary base group of twelve channels of 4 kHz each, covering the band 60 - 108 kHz, and comprises between an analog-digital input converter receiving the voice frequency channels and a digitalanalog output converter emitting the desired band, only members of the digital type operating on digital information or data ''''words.

Abstract translation: 数字系统，其从n个语音频道通道提供频率复用系统的频带，例如，每个具有4kHz的12个信道的主基组，覆盖频带60-108kHz，并且包括在模拟数字输入 接收语音频道的转换器和发射所需频带的数字模拟输出转换器，只有在数字信息或数据“字上操作的数字类型的成员。

公开(公告)号：US3873774A

公开(公告)日：1975-03-25

申请号：US37391273

申请日：1973-06-27

Applicant: CIT ALCATEL

Inventor： CABET ALAIN ,  PINIER GASTON ,  ELOY GUY

IPC: H04J1/14 ,  H04L5/06 ,  H04J1/16

CPC classification number: H04L5/06 ,  H04J1/14

Abstract: Equipment for detecting, on the basis of two consecutive tests, the existence of one or several telegraph channels on one or several telephone channels of a frequency multiplex system. The first test, which is relatively fast, is based on the presence of a predetermined frequency in the channel. The second test, which is slower in operation, is based on the amplitude identity of two moments, formed by alternate transitions in the transmission signal.

Abstract translation: 用于在两个连续测试的基础上检测频率复用系统的一个或几个电话信道上存在一个或几个电报信道的设备。 相对较快的第一个测试是基于通道中预定频率的存在。 运行较慢的第二个测试是基于通过传输信号中的交替转换形成的两个力矩的幅度同一性。

公开(公告)号：FR1479482A

公开(公告)日：1967-05-05

申请号：FR54700

申请日：1966-03-23

Applicant: CIT ALCATEL

Inventor： CABET ALAIN

IPC: H03G1/00

公开(公告)号：DE1235385B

公开(公告)日：1967-03-02

申请号：DEC0032922

申请日：1964-05-16

Applicant: CIT ALCATEL

Inventor： LEOSTIC JOSEPH ,  CABET ALAIN ,  BABANY LUCIEN

IPC: H03J5/24

公开(公告)号：DE2331902A1

公开(公告)日：1974-01-17

申请号：DE2331902

申请日：1973-06-22

Applicant: CIT ALCATEL

Inventor： CABET ALAIN ,  PINIER GASTON ,  ELOY GUY

IPC: H04J1/14 ,  H04L5/06 ,  H04M11/06

公开(公告)号：FR1373665A

公开(公告)日：1964-10-02

申请号：FR924649

申请日：1963-02-13

Applicant: CIT ALCATEL

Inventor： LEOSTIC JOSEPH ,  BABANY LUCIEN ,  CABET ALAIN ,  SELZ JACQUES

IPC: G01R29/08

公开(公告)号：FR1371812A

公开(公告)日：1964-09-11

申请号：FR935254

申请日：1963-05-17

Applicant: CIT ALCATEL

Inventor： LEOSTIC JOSEPH ,  BABANY LUCIEN ,  CABET ALAIN

IPC: H03J5/02 ,  H03J5/24 ,  H04B1/30

公开(公告)号：FR2287811A1

公开(公告)日：1976-05-07

申请号：FR7433786

申请日：1974-10-08

Applicant: CIT ALCATEL

Inventor： CABET ALAIN ,  PINIER GASTON ,  SEMUR PIERRE ,  ROY MARIE-ANNICK

IPC: H04B3/10 ,  H04J1/02

公开(公告)号：DE2544121A1

公开(公告)日：1976-04-22

申请号：DE2544121

申请日：1975-10-02

Applicant: CIT ALCATEL

Inventor： CABET ALAIN ,  PINIER GASTON ,  SEMUR PIERRE ,  ROY MARIE-ANNICK

IPC: H04B3/10

公开(公告)号：DE2333870A1

公开(公告)日：1974-01-17

申请号：DE2333870

申请日：1973-07-03

Applicant: CIT ALCATEL

Inventor： ROY MARIE-ANNICK ,  CABET ALAIN ,  DESOMBRE PATRICE

IPC: H04J1/04 ,  H04J1/05

Abstract: Digital system which, from n voice frequency channels, furnishes a band of a frequency multiplex system, for example, a primary base group of twelve channels of 4 kHz each, covering the band 60 - 108 kHz, and comprises between an analog-digital input converter receiving the voice frequency channels and a digital-analog output converter emitting the desired band, only members of the digital type operating on digital information or data "words.