公开(公告)号：US3757051A

公开(公告)日：1973-09-04

申请号：US3757051D

申请日：1971-11-23

Applicant: INT STANDARD ELECTRIC CORP

Inventor： GIRARD P ,  LEROUGE C ,  REGNIER M

IPC: H04L25/24 ,  H04L25/49 ,  H04B3/38

CPC classification number: H04L25/242 ,  H04L25/4923

Abstract: A regenerative repeater for alternate polarity PCM signals is disclosed that does not require an equalizer or amplifier. The PCM signals are directly detected by (1) determining whether the slope of the pulse is greater or less than a reference value and (2) if its polarity is opposite to that of the preceding pulse. The detected signals are reshaped by a monostable multivibrator and are retimed by a phase-locked loop. The repeater is completely digital except for the slope comparator.

公开(公告)号：US3739375A

公开(公告)日：1973-06-12

申请号：US3739375D

申请日：1969-04-10

Applicant: INT STANDARD ELECTRIC CORP

Inventor： CHATELON A ,  REGNIER M

IPC: H03M1/00 ,  H04B14/04 ,  H03K13/02

CPC classification number: H04B14/044 ,  H03M1/00 ,  H03M1/50

Abstract: A high-gain differential amplifier is used as a comparator in a PCM coder. The amplifier may oscillate during the time reserved for the charge of the holding capacitor. According to the invention an auxiliary circuit delivers, during that time, a voltage which is higher than the maximum possible value of the signal to be coded. This high voltage is applied to the comparator in order to block it.

Abstract translation: 在PCM编码器中使用高增益差分放大器作为比较器。 放大器可能在为保持电容器的电荷保留的时间内振荡。 根据本发明，辅助电路在该时间期间提供高于待编码信号的最大可能值的电压。 该高电压被施加到比较器以阻止比较器。

公开(公告)号：US3760361A

公开(公告)日：1973-09-18

申请号：US3760361D

申请日：1972-09-29

Applicant: INT STANDARD ELECTRIC CORP

Inventor： LEGER M ,  LEROUGE C ,  REGNIER M

IPC: H03K3/356 ,  H03K17/693 ,  H04Q3/52 ,  H04Q3/00

CPC classification number: H03K17/693 ,  H03K3/356 ,  H04Q3/521

Abstract: Disclosed is a marker for controlling an electronic switching stage. Each crosspoint of the stage includes a holding flip-flop which is used by the marker in its path search, the holding flip flops being combined into a shift register. The contents of the shift register can be read without disturbing the condition of the associated crosspoints. A path search comprises the steps of a read-out of the crosspoint conditions followed by analysis of the available sections through which a path can be completed. A second read-out of the shift register is made during which the flip-flops are set to close the crosspoints of a switching path.

Abstract translation: 公开了一种用于控制电子切换台的标记。 该级的每个交叉点包括保持触发器，该保持触发器在其路径搜索中由标记使用，保持触发器被组合成移位寄存器。 可以读取移位寄存器的内容，而不会干扰相关交叉点的条件。 路径搜索包括以下步骤：读出交叉点条件，然后分析路径可以完成的可用段。 进行移位寄存器的第二次读出，在此期间触发器被设置为闭合切换路径的交叉点。

公开(公告)号：US3750144A

公开(公告)日：1973-07-31

申请号：US3750144D

申请日：1971-11-26

Applicant: INT STANDARD ELECTRIC CORP

Inventor： BOLUS D ,  LEROUGE C ,  REGNIER M

IPC: H03M7/00 ,  H04L3/00

CPC classification number: H03M7/3048

Abstract: A transcoder is disclosed for exchanging time division multiplex data between a PCM system and a DM system. The basic circuit is a code circulation loop employing shift registers having a capacity for one PCM frame and wherein the codes are advanced by one address at each DM time slot. The DM clock is synchronized by the PCM clock.

Abstract translation: 公开了用于在PCM系统和DM系统之间交换时分复用数据的代码转换器。 基本电路是使用具有一个PCM帧的容量的移位寄存器的代码循环回路，并且其中在每个DM时隙，代码被提前一个地址。 DM时钟由PCM时钟同步。