1980-09-09
1982-10-12
Stellar, George G.
H04R 120
Patent
active
043540597
ABSTRACT:
A variable-directivity microphone device comprises a microphone unit having a plurality of microphones, a circuit which resultingly adds the low-frequency range components of the output signal of one of the microphones of the microphone unit and mixes with the output signal of the other microphone so that only the high-frequency range components cancel each other, and an equalizer which corrects the characteristic of the mixed signal. The above effective mixing is performed under varying mixing states.
Ishigaki Yukinobu
Miyaji Naotaka
Totsuka Kaoru
Yamamoto Makoto
Handal Anthony H.
Meller Michael N.
Stellar George G.
Victor Company of Japan Ltd.
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