Microphone for stereo reception Patent #: 4466117
ApplicationNo. 06/918497 filed on 10/14/1986
US Classes:381/313, Directional381/120, WITH AMPLIFIER381/122, HAVING MICROPHONE381/327, Spectacle381/92DIRECTIVE CIRCUITS FOR MICROPHONES
ExaminersPrimary: Rubinson, Gene Z.
Assistant: Byrd, Danita R.
Attorney, Agent or Firm
International ClassesH04R 25/02 (20060101)
H04R 25/00 (20060101)
Foreign Application Priority Data1985-10-16 DE
AbstractA directional microphone arrangement has a number of discrete microphones each having an electrical output and elements for deriving first and second electrical signals which are 180° out of phase with respect to each other from the outputs of the microphones. A third signal is also derived through differentiation from one of the microphone outputs which is 90° out of phase with respect to one of the first or second signals. All of the first, second and third signals are added in a summing unit, the output of the summing unit forming the output for the arrangement.