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RE32365 |
Precessing display pager
A hand held paper pager is disclosed in which a transmitted message is displayed in alpha/numeric form by a precessing display which moves the received message across the display in a continuous...
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4330780 |
Radio paging receiver having pre-recorded voice messages which are selected by address codes and read out responsive to a suffix code
A radio paging receiver operates upon receipt of a predetermined, sequential paging signal having at least first and second code signals. The receiver receives and decodes the first predetermined...
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3922607 |
Radio broadcasting system
A method and apparatus for radio broadcasting including a transmitter which transmits substantially continuous program material, such as background music, on one subcarrier and a plurality of...
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3846794 |
ALARM RETRANSMISSION SYSTEM
An AC alarm retranmission system connecting a plurality of receiver units on a single DC circuit such as a McCulloh circuit. When an alarm retransmission is initiated, all of the receiver units...
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