Communications interface for wireless communications headset

摘要: A universal interface adapter circuit interfaces, for example, a wireless communications headset with any type of system, including those that require push-to-talk (PTT) signaling. The is comprised several main components, an RF signaling receiver, microcontroller and associated circuitry decoding processing the received signals, programmable impedance matching line interfacing system base to system. transmitter, which preferably portable (e.g., handheld), employed by user send signals receiver. In embodiment invention directed specifically signaling, presses button on transmitter when they wish speak. This sends signal decodes recognizes as being PTT request. response, generates control closes switch complete voice connection between so can communicate With this arrangement, be interfaced requires without modification device. addition, also configured respond or deliver other types such dual-tone-multiple-frequency (DTMF) tones, on/off hook signals. present scalable, permits multiple users operate independently in same environment through use plurality adapters.