公开(公告)号：US3663757A

公开(公告)日：1972-05-16

申请号：US3663757D

申请日：1969-11-12

Applicant: BURROUGHS CORP

Inventor： CASSIDY CARL R

IPC: H04L27/12 ,  H04M11/06

CPC classification number: H04L27/12

Abstract: This converter enables the transmission of digital data over a standard telephone by means of a pair of audible tones. It can be used to couple a terminal machine such as a teletypewriter, with a computer at a distant location, using ordinary dial-up voicegrade telephone lines. It can be considered to be a coupler, a converter or an adapter. Functionally, it receives electrical pulses at its input, and converts them to audible tones at its output. There is, of course, no wiring connection required between the converter and the telephone itself.

Abstract translation: 该转换器使得能够通过一对可听音调通过标准电话传输数字数据。 可以使用普通拨号语音级电话线将远程打印机等终端机与远程位置的计算机连接起来。 它可以被认为是耦合器，转换器或适配器。 在功能上，它在其输入端接收电脉冲，并将其转换为其输出端的可听音。 当然，转换器和电话本身之间不需要接线。

公开(公告)号：US3275930A

公开(公告)日：1966-09-27

申请号：US25826863

申请日：1963-02-13

Applicant: BURROUGHS CORP

Inventor： CASSIDY CARL R ,  MEYERHOFF ALBERT J

IPC: H01L39/24 ,  H03K3/38

CPC classification number: H01L39/24 ,  H03K3/38 ,  Y10S505/857