发明名称 PORTABLE COMMUNICATION SYSTEM
摘要 PROBLEM TO BE SOLVED: To make persons in charge of service, for example, in a restaurant or the like to serve customers a fair number of times without causing a confusion. SOLUTION: A portable communication system having a switch for transmitting a signal is constituted by a plurality of transmitter for transmitting a signal including identification information when a signal transmitting operation is inputted with this switch and a plurality of portable receivers 12. The receiver 12 has a receiving unit 124 for receiving a signal from each transmitter, a control unit 120 for determining whether the signal is received by utilizing an individual number assigned in advance and a count value obtained by counting the number of transmissions of a signal transmitted from each transmitter, and a noticing unit O21 for notching a received signal by using identification information included in the signal received by the receiving unit 124 when it is determined to receive the signal.
申请公布号 JP2002111859(A) 申请公布日期 2002.04.12
申请号 JP20000293078 申请日期 2000.09.26
申请人 MATSUSHITA ELECTRIC WORKS LTD 发明人 MISAWA ATSUSHI;KANDA MINORU;MATSUMOTO KAZUHIRO;NABESHIMA HIDEO
分类号 H04M1/725;H04M1/00;H04M1/57;(IPC1-7):H04M1/725 主分类号 H04M1/725
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