Sound actuated microphone system
Microphone actuation control system suitable for teleconference systems Patent #: 4658425
ApplicationNo. 931032 filed on 09/16/1997
US Classes:381/92, DIRECTIVE CIRCUITS FOR MICROPHONES381/81, With switching381/111, CIRCUITRY COMBINED WITH SPECIFIC TYPE MICROPHONE OR LOUDSPEAKER381/356Directional
ExaminersPrimary: Le, Huyen
Attorney, Agent or Firm
International ClassH04R 025/00
AbstractA multiple-microphone actuation control system using direction-sensitive microphones turns ON microphones only if a talker's speech originates from within a specified "acceptance angle" in front of the microphones. Additionally, the invention automatically identifies which microphone best "hears" the talker, and only turns ON one microphone per talker, while allowing several microphones to turn ON simultaneously for several talkers.