Radio pager with display device
First Claim
Patent Images
1. A radio pager comprising:
- means for receiving and demodulating a carrier wave modulated with a selective calling signal and a message signal to provide demodulated selective calling and message signals;
means for detecting from said demodulated selective calling signal a selective calling signal assigned to said radio pager to provide a detected signal;
means responsive to said detected signal for delivering an alert signal;
first memory means for storing said demodulated message signal;
second memory means for respectively storing a plurality of message signals from said first memory means;
first display means for displaying one of said message signals stored in said second memory means; and
means for comparing the message signal stored in said first memory means with said plurality of message signals stored in said second memory means and transferring said message signal from said first memory means to said second memory means when all of said message signals stored in said second memory means differ from said message signal in said first memory means.
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Abstract
A radio pager receives a signal having a selective calling signal portion and message signal portion and examines the selective calling portion of the signal for its own ID code. Upon detecting a match, an alert signal is provided and the message signal portion is stored in a memory if it does not match any of the message signals already stored. A counter also keeps track of the number of stored messages. The messages can be sequentially displayed when desired.
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Citations
12 Claims
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1. A radio pager comprising:
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means for receiving and demodulating a carrier wave modulated with a selective calling signal and a message signal to provide demodulated selective calling and message signals; means for detecting from said demodulated selective calling signal a selective calling signal assigned to said radio pager to provide a detected signal; means responsive to said detected signal for delivering an alert signal; first memory means for storing said demodulated message signal; second memory means for respectively storing a plurality of message signals from said first memory means; first display means for displaying one of said message signals stored in said second memory means; and means for comparing the message signal stored in said first memory means with said plurality of message signals stored in said second memory means and transferring said message signal from said first memory means to said second memory means when all of said message signals stored in said second memory means differ from said message signal in said first memory means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 11, 12)
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8. A radio pager comprising;
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first means for receiving a calling signal including a selective calling signal and a message signal; second means for storing the received selective calling signal; third means for comparing the signal stored in said second means with a calling signal assigned to said radio pager; fourth means for storing the received message signal when the signals compared in said third means are identical with each other; fifth means for storing a plurality of message signals fed from said fourth means; sixth means for comparing the signal stored in said fourth means with each of the signals stored in said fifth means; seventh means for transferring the signal stored in said fourth means to said fifth means when the signals compared at said sixth means are different from each other; and eighth means for displaying one of the message signals stored in said fifth means. - View Dependent Claims (9, 10)
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Specification