G - Physics – 08 – B
Patent
G - Physics
08
B
325/28, 325/72
G08B 3/10 (2006.01) G06F 9/32 (2006.01) G08B 5/22 (2006.01) H01F 1/153 (2006.01) H04B 7/26 (2006.01) H01R 13/52 (2006.01) H04Q 7/18 (2006.01)
Patent
CA 1219916
ABSTRACT A paging receiver comprises a receiver for receiving a paging code including a first code having a first transmission rate, a second code having a second transmission rate and a discrimination code for distinguishing the first and second codes. A low-pass filter is connected to the output of the receiver for switching its cut-off frequency in response to a control signal and selectively extracting the first and second codes. A data processing section means, coupled to the output of said low-pass filter means, generates the control signal in response to the received discrimination code, supplies the control signal to the low-pass filter, and decodes the extracted first and second codes. The invention provides a paging system capable of effectively transmitting and receiving message codes without adversely affecting the paging code (especially the address code) reception probability.
439016
Ichikawa Yoshio
Ohyagi Takashi
Corporation Nec
Smart & Biggar
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