作者: John G. Posa , Barry H. Schwab
DOI:
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摘要: Electronic teleconferencing configurations use one or more remote microphones for added functionality. A base unit includes an interface to a telecommunications network and at least microphone in wireless communication with the unit, enabling carrier of speak listener through over network. The may form part telephone, would preferably further include docking station receive along electrical contacts causing telephone enter into speakerphone mode when is removed use. speaker either be provided disposed housing microphone, example, headset. With multiple audio processing circuitry level control microphone/speaker discrimination. inventive apparatus also video system, which case cameras employed capture user images transmission As option, system transmit signal transponding by units, determination distance unit. Particularly separate frequencies, location each determined using antennas triangulation. By knowing and/or position, additional capabilities are possible virtue invention, including automatic pan/tilt, zoom, focusing, depth-of-field single speakers.