Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1991-01-23
1994-04-05
Kuntz, Curtis
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 96, 379368, H04M 1100, H04M 100
Patent
active
053012224
ABSTRACT:
A portable radio telephone set comprises a telephone number generating apparatus and a telephone number transmitting apparatus which are preferably contained in a pencil shaped body. The telephone number generating means generates a telephone number signal, for instance, by sensing the motion of a ball provided on a lower end of the body. The ball is moved to draw a telephone number on a surface of an article. The telephone number signal is modulated in the telephone number transmitting apparatus to be transmitted to air by an antenna which is provided on an upper end of the body.
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patent: 5117455 (1992-05-01), Danish
patent: 5119414 (1992-06-01), Izumi
Free, "Personal Pocket Phones", Popular Science Aug. 1990.
Cumming William D.
Kuntz Curtis
NEC Corporation
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