Apparatus and method for recording, transmitting, receiving and

Details Apparatus and method for recording, transmitting, receiving and Apparatus and method for recording, transmitting, receiving and

1994-02-14

1996-02-27

Boudreau, Leo H.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359143, 359150, 455 66, 369 6, 34082515, 34082572, 381172, H04B 1000

Patent

active

054953570

ABSTRACT:
A compact solid state representative communication device allows the user to record, transmit, receive, play and erase messages or sounds. The communication device includes a record switch for recording messages to be sent, a transmit switch for sending messages, a play switch for playing recorded and received messages, a microphone for converting sound waves into electrical signals indicative of sound waves, an audio recorder for recording and playing back electrical signals indicative of sound waves, a transmitter for transmitting electromagnetic signals (preferably but not necessarily IR signals) indicative of sound waves, a receiver for receiving electromagnetic signals indicative of sound waves and a speaker for converting electrical signals into sound waves, all encased in a single compact housing. The communication device is small enough and light enough to be worn on the clothing of a person.

REFERENCES:
patent: 4356519 (1982-10-01), Cogdell, Jr.
patent: 4426738 (1984-01-01), Sato
patent: 4500752 (1985-02-01), Lee
patent: 5081668 (1992-01-01), Ito
patent: 5142564 (1992-08-01), Chu

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