公开(公告)号：US5661752A

公开(公告)日：1997-08-26

申请号：US359470

申请日：1994-12-20

Applicant: William Glass

Inventor： William Glass

IPC: H04J13/10 ,  H04L7/00 ,  H04L7/04 ,  H04L7/10 ,  H04L27/38 ,  H04B1/38

CPC classification number: H04L7/10 ,  H04L7/046

Abstract: A device for identifying a determined repetitive sequence of predetermined signals arriving on a modem. The device includes a delay circuit so that all the words of a sequence are simultaneously present; a combination circuit for providing a combined word; a circuit for calculating the modulus of each combined word and for comparing this modulus with a threshold; a circuit for counting clock pulses corresponding to the rate at which words arrive; a circuit for inhibiting the counting circuit when the modulus of the combined word is lower than the threshold; and a circuit for providing an identification signal when a predetermined number of clock signals is counted.

Abstract translation: 用于识别确定到达调制解调器的预定信号的重复序列的装置。 该装置包括延迟电路，使得序列中的所有字同时存在; 用于提供组合字的组合电路; 用于计算每个组合字的模数并将该模量与阈值进行比较的电路; 用于计数对应于字到达速率的时钟脉冲的电路; 当组合字的模数低于阈值时，用于禁止计数电路的电路; 以及当计数预定数量的时钟信号时提供识别信号的电路。

公开(公告)号：US5434849A

公开(公告)日：1995-07-18

申请号：US926813

申请日：1992-08-07

Applicant: Dominique Vicard ,  William Glass ,  Francois Druilhe

Inventor： Dominique Vicard ,  William Glass ,  Francois Druilhe

IPC: H04B1/58 ,  H04B3/23

CPC classification number: H04B3/237

Abstract: A duplex modem for processing data needed for cancelling far-end echo includes at least one high-speed processor of the data pump type performing filtering operations and a microcontroller. The data, corresponding to transmitted data and necessary for cancelling far-end echoes, are stored in a memory associated with and controlled by the microcontroller.

Abstract translation: 用于处理取消远端回波所需的数据的双工调制解调器包括执行滤波操作的数据泵类型的至少一个高速处理器和微控制器。 对应于发送数据的数据和消除远端回波所必需的数据被存储在与微控制器相关联并由其控制的存储器中。