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公开(公告)号：US5359648A
公开(公告)日：1994-10-25
申请号：US997995
申请日：1992-12-28
CPC分类号： H04M11/06
摘要： A method and apparatus for escaping from transparent mode in which the Data Communication Equipment will escape from transparent mode (into command mode) if a user programmed escape character string is received in coincidence with the toggling of a control signal such as Request To Send (RTS). Advantageously, this escape method can be used in conjunction with time/data escape methods that are based soley on activity on the received data line. When the two methods are used together, a supervisor program or control device can force an escape notwithstanding the user programmed time constraint parameters in the DCC.
摘要翻译： 如果接收与用户编程的转义字符串一致的数据通信设备将从透明模式（进入命令模式）中逃脱的透明模式的方法和装置与诸如请求发送（RTS）之类的控制信号 ）。 有利的是，这种转义方法可以结合基于接收数据线上的活动的时间/数据转义方法来使用。 当两种方法一起使用时，尽管在DCC中有用户编程的时间约束参数，但是管理程序或控制设备可以强制逃跑。
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公开(公告)号：US5345495A
公开(公告)日：1994-09-06
申请号：US936969
申请日：1992-08-28
申请人： David C. Black , Tave P. Dunn , Elie A. Jreij , Gary R. Key , William E. Levene , Timothy L. Wilson
发明人： David C. Black , Tave P. Dunn , Elie A. Jreij , Gary R. Key , William E. Levene , Timothy L. Wilson
CPC分类号： H04M11/066 , H04M1/82
摘要： A telephone includes means for switching the LEDs, on the face of the phone, between a normal operating mode in which the lights indicate the status of telephony features, such as mute or hold, to a diagnostic operating mode in which the LEDs indicate the status of the telephone's data communications signals. The modes are toggled by entry of a code on the telephone keypad or by way of a command from a workstation coupled to the telephone by way of a data communications port.
摘要翻译： 电话包括用于在正常操作模式之间切换LED的装置，其中指示灯将电话功能的状态（例如静音或保持）指示到诊断操作模式，其中LED指示状态 的电话数据通信信号。 这些模式通过在电话键盘上输入代码或通过来自耦合到电话的工作站的命令通过数据通信端口来切换。
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3.发明授权Apparatus and method for automatically switching a headset between a telephone and a second audio source 失效用于在电话和第二音频源之间自动切换耳机的装置和方法
公开(公告)号：US6091812A
公开(公告)日：2000-07-18
申请号：US747468
申请日：1996-11-12
CPC分类号： H04M1/82 , H04M1/6033 , H04R3/00
摘要： An apparatus and method are disclosed for connecting a headset alternately to a telephone line and an audio device. The apparatus includes an audio connector for connecting the apparatus to the audio device, a telephone connector for connecting the apparatus to the telephone line, and a headset connector for connecting the apparatus to the headset. The apparatus also includes a switching circuit connected to the audio, telephone and headset connectors. The switching circuit connects the telephone connector to the headset connector in response to sensing a voltage greater than a predetermined threshold on the telephone line. When the voltage sensed returns to a value less than the predetermined threshold value, the switching circuit reconnects the headset connector to the audio connector.
摘要翻译： 公开了一种用于将耳机交替地连接到电话线和音频装置的装置和方法。 该设备包括用于将设备连接到音频设备的音频连接器，用于将设备连接到电话线的电话连接器和用于将设备连接到耳机的耳机连接器。 该装置还包括连接到音频，电话和耳机连接器的切换电路。 响应于感测到电话线上的预定阈值以上的电压，开关电路将电话连接器连接到耳机连接器。 当感测到的电压返回到小于预定阈值的值时，开关电路将耳机连接器重新连接到音频连接器。
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