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Class Information
Number: 381/151
Name: Electrical audio signal processing systems and devices > Electro-acoustic audio transducer > Body contact wave transfer (e.g., bone conduction earphone, larynx microphone)
Description: Subject matter wherein sound vibrations are obtained from or imparted to a portion of a human body in direct contact with a vibrating component of an electroacoustical transducer.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4961227 |
Portable loud speaker system |
Oct. 2, 1990 |
| 4903703 |
Conversation device of MR imaging apparatus |
Feb. 27, 1990 |
| 4843628 |
Inertial microphone/receiver with extended frequency response |
Jun. 27, 1989 |
| 4839871 |
Underwater communication device |
Jun. 13, 1989 |
| 4830007 |
Fetus learning system |
May. 16, 1989 |
| 4821323 |
Stereo headphone |
Apr. 11, 1989 |
| 4791673 |
Bone conduction audio listening device and method |
Dec. 13, 1988 |
| 4757548 |
Speaker system and dome-shaped enclosure therefor |
Jul. 12, 1988 |
| 4750208 |
Audio-band electromechanical vibration converter |
Jun. 7, 1988 |
| 4696045 |
Ear microphone |
Sep. 22, 1987 |
| 4685448 |
Vocal tactile feedback method and associated apparatus |
Aug. 11, 1987 |
| 4654883 |
Radio transmitter and receiver device having a headset with speaker and microphone |
Mar. 31, 1987 |
| 4652702 |
Ear microphone utilizing vocal bone vibration and method of manufacture thereof |
Mar. 24, 1987 |
| 4607383 |
Throat microphone |
Aug. 19, 1986 |
| 4596903 |
Pickup device for picking up vibration transmitted through bones |
Jun. 24, 1986 |
| 4591668 |
Vibration-detecting type microphone |
May. 27, 1986 |
| 4588867 |
Ear microphone |
May. 13, 1986 |
| 4520238 |
Pickup device for picking up vibration transmitted through bones |
May. 28, 1985 |
| 4516428 |
Acceleration vibration detector |
May. 14, 1985 |
| 4507816 |
Waterbed with sound wave system |
Apr. 2, 1985 |
| 4506379 |
Method and system for discriminating human voice signal |
Mar. 19, 1985 |
| 4337377 |
Biologic apparatus |
Jun. 29, 1982 |
| 4334315 |
Wireless transmitting and receiving systems including ear microphones |
Jun. 8, 1982 |
| 4323999 |
Automatic transmission or recording or transmission and reception control system |
Apr. 6, 1982 |
| 4322585 |
Personal electronic listening system with an air and bone transducer mounted on the clothing collar |
Mar. 30, 1982 |
| 4311872 |
Portable voice communication system |
Jan. 19, 1982 |
| 4309575 |
Apparatus for intercranial transmission of audio signals |
Jan. 5, 1982 |
| 4071110 |
Underwater voice communicator |
Jan. 31, 1978 |
| 4070553 |
Personal audio listening system |
Jan. 24, 1978 |
| 4039999 |
Communication system |
Aug. 2, 1977 |
| 4025734 |
Ambient noise shielded ear transceiver |
May. 24, 1977 |
| 4025732 |
Method and device for presenting information to deaf persons |
May. 24, 1977 |
| 4017797 |
Headset for receiving and transmitting signals |
Apr. 12, 1977 |
| 4012604 |
Microphone for the transmission of body sounds |
Mar. 15, 1977 |
| 4006318 |
Inertial microphone system |
Feb. 1, 1977 |
| 3980842 |
Telephone listening comfort adaptor (TLCA) |
Sep. 14, 1976 |
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