04334315 is referenced by 183 patents and cites 6 patents.

A wireless transmitting and receiving system includes an ear microphone of the vibration pick-up type for picking up bone-conducted voice signals through an external auditory ear canal wall of a wearer. A portable case is disposed adjacent the wearer's ear and a wireless device is attached adjacent the wearer but spaced from the portable case. A transmitter of a transmitting circuit for transmitting the output signals of the ear microphone is housed in the portable case. A receiver of a receiving circuit is housed in the wireless device and receives signals from outside the system. The transmitting and receiving circuits provide a wireless connection between the portable case and the wireless device permitting two-way communication through one ear of the wearer.

Title
Wireless transmitting and receiving systems including ear microphones
Application Number
6/146675
Publication Number
4334315
Application Date
May 5, 1980
Publication Date
June 8, 1982
Inventor
Kazutoshi Mizoi
Mie
JP
Hiroshi Ono
Tokyo
JP
Agent
Roylance Abrams Berdo & Farley
Assignee
Gen Engineering
JP
IPC
H04B 1/38
H04B 7/15
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