Receiver having an individual selective call function and a secu

Details Receiver having an individual selective call function and a secu Receiver having an individual selective call function and a secu

1994-01-14

1995-07-04

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455 382, 455 89, 3403111, 34082544, H04B 116

Patent

active

054308925

ABSTRACT:
A receiver with an individual selective call function includes a ROM for storing an individual selection number in which a secret number of the receiver is registered. A data control unit compares a secret number registered in its own memory and the secret number registered in the individual selection number ROM of the receiver, and when they are not equal, the read/write operation of the individual selection number ROM is disabled.

REFERENCES:
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patent: 4612419 (1986-09-01), Smith
patent: 5021776 (1991-06-01), Anderson et al.
patent: 5043721 (1991-08-01), May
patent: 5068889 (1991-11-01), Yamashita
patent: 5073767 (1991-12-01), Holmes et al.
patent: 5146217 (1992-09-01), Holmes et al.
patent: 5151694 (1992-09-01), Yamasaki
patent: 5177478 (1993-01-01), Wagai et al.
patent: 5257412 (1993-10-01), Tomioka et al.

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