Title:
RADIO CALL RECEIVER AND RADIO CALL METHOD
Document Type and Number:
Japanese Patent JP3088896
Kind Code:
B2
Abstract:
PURPOSE: To easily realize 1:N communication such as multiple address communication or commercial as well as 1:1 communication between individual persons by allowing the user having the receiver to set an optional call code to the receiver.
CONSTITUTION: The radio call receiver uses an antenna 21 to receive a radio wave and a radio detection demodulation section 22 demodulates the radio wave into original transmission digital data. Then the data are led to a digital circuit 23 and a code transmission error caused fading or the like is corrected to reproduce correct data. A CPU 25 checks the data to extract a call code from a data stream and then extracts the code from a call code RAM 27 storing the call code specific to each receiver so as to check whether or not the code is coincident with the received code. When the coincidence is detected, an electronic tone speaker 13 is driven.
Inventors:
Youichi Sakai
Fukuya Ishino
Fukuya Ishino
Application Number:
JP3481194A
Publication Date:
September 18, 2000
Filing Date:
March 04, 1994
Export Citation:
Assignee:
Sharp Corporation
NTT Software Corporation
NTT Software Corporation
International Classes:
G08B5/22; H04W88/02; (IPC1-7): H04Q7/14; H04Q7/06; H04Q7/08; H04Q7/12
Domestic Patent References:
| JP3187627A | ||||
| JP2266620A | ||||
| JP7226967A |
Attorney, Agent or Firm:
Akinori Takano (1 person outside)