Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1991-06-25
1994-02-08
Ng, Jin F.
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 61, 379 63, 345156, 345193, H04M 1100, G09G 102, G08B 522
Patent
active
052854930
ABSTRACT:
A tele-communication device includes a memory for storing a plurality of pieces of messages transmitted over a communication channel and a display device for displaying the message information read from the memory in response to an operation of a display switch. The pieces of message information are automatically read from the memory in sequence at regular intervals and displayed on the display device while the display switch is depressed continuously. When the display time of a message exceeds a given time, the message is automatically erased from the display. When the display switch is depressed within a given time from when the message is erased automatically, the erased message is displayed again.
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British Telecommunications Engineering vol. 8, Jan. 1990 p. 270, "New Pagers for Business".
Sato Haruhiko
Sato Shin-ya
Sekigawa Tatsuaki
Shiono Mitsuji
Wagai Kiyoshi
Cumming William D.
Kabushiki Kaisha Toshiba
Ng Jin F.
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