Title: Radio selective calling receiver and calling method
Application Number: 97109773 Application Date: 1997.04.23
Publication Number: 1166757 Publication Date: 1997.12.03
Approval Pub. Date: 2002.11.20 Granted Pub. Date: 2002.11.20
International Classifi-cation: G08B5/22;H04Q7/14
Applicant(s) Name: NEC Corp. Address:
Inventor(s) Name: Yasuyuki Yamazaki
Attorney & Agent: ZHANG ZHIXING
Abstract:
    The message transmitter transmits a re-calling identification signal with a message, a receiver identifies this signal, thereby the message transmitter can indicates selectively the re-calling of the receiver. If the message is not confirmed (S209), the receiver performs re-calling (S213) every previously set time interval with the second sound pattern different from the normal sound pattern for indicating that this message is an unconfirmed message until the message is confirmed, and continues to perform calling operation periodically (S206, 207) until the receiver holder cancels the re-calling (S204) regardless that the message is confirmed by switch operation (S202) with three short sound which is not so loud as the receiver holder does not feel noisy.
Time: 8
<- Previous Patent:Two Defence areas alarm controller   |  Next Patent:Trace displaying safety system ->