公开(公告)号：US5387994A

公开(公告)日：1995-02-07

申请号：US195496

申请日：1994-02-14

申请人： Michael D. McCormack ,  Kent C. Woodgate

发明人： Michael D. McCormack ,  Kent C. Woodgate

IPC分类号： H04B10/10 ,  H04B10/00

CPC分类号： H04B10/1143

摘要： A communications adapter for converting a socket connector of communications apparatus from wire-based communication to wireless communication, with the socket connector having transmit and receive contacts, and a control contact which enables the socket connector only when a predetermined logic level is applied thereto. The communications adapter includes a plug connector having transmit, receive and control pins arranged to respectively engage the transmit, receive and control contacts of the socket connector, a light emitting diode, a timer having a trigger input and an output, and a photo detector. The light emitting diode and photo detector are respectively connected to the transmit and receive pins which engage the transmit and receive contacts of the socket connector, and the output of the timer is connected to the control pin of the plug connector which engages the control contact of the socket connector. The photo detector is additionally connected to the trigger input of the timer. The timer provides a timed output signal at the timer output having the first predetermined logic level only in response to a predetermined signal applied to the trigger input by the photo detector. An input signal applied to the photo detector causes the photo detector to trigger the timer, enabling communications via the socket connector for the duration of the timed output signal.

摘要翻译： 一种用于将通信装置的插座连接器从基于线的通信转换为无线通信的通信适配器，其中插座连接器具有发送和接收触点，以及控制触点，其仅在施加预定的逻辑电平时才能使得插座连接器。 通信适配器包括插头连接器，其具有布置成分别接合插座连接器的发射，接收和控制触点的发射，接收和控制引脚，发光二极管，具有触发输入和输出的定时器以及光电检测器。 发光二极管和光电检测器分别连接到与插座连接器的发射和接收触点接合的发射和接收引脚，并且定时器的输出连接到插头连接器的控制引脚，该控制引脚与控制触点 插座连接器。 光电检测器另外连接到定时器的触发输入。 定时器仅在响应于施加到光电检测器的触发输入的预定信号时，在具有第一预定逻辑电平的定时器输出端提供定时输出信号。 施加到光电检测器的输入信号使得光电检测器触发定时器，在定时输出信号的持续时间内通过插座连接器进行通信。