Digital radio telephone for a digital mobile radio communication system

Abstract

A digital radio telephone comprises a radio portion for receiving a radio signal modulated by an encoded digital signal including control information, for demodulating and outputting the encoded digital signal, a control signal processing portion for decoding the demodulated encoded digital signal to obtain the control information, a telephone number information detecting means for detecting whether the decoded control information includes mate telephone number information, a memory for storing the telephone number information, a time information management means for specifying an incoming time of the telephone number information to output a time information, and a memory management means for recording the telephone number information corresponding to the time information into the memory.

1. A digital radio telephone comprising:
 a radio portion for receiving a radio signal modulated by an encoded digital signal including control information, for demodulating and outputting said encoded digital signal;  
 a control signal processing portion for decoding said demodulated encoded digital signal to obtain said control information;  
 a telephone number information detecting means for detecting, before a speech path is established with an incoming call apparatus, whether the decoded control information includes incoming telephone number information;  
 a memory for storing said telephone number information, said memory having an incoming recording memory and a registering memory, with said incoming recording memory storing a telephone number and a time information of an incoming telephone call;  
 a time information management means responsive to said telephone number information detecting means for specifying an incoming time of said telephone number information to output said time information; and  
 a memory management means for recording said telephone number information corresponding to said time information into said memory, with said telephone number being compared to previously stored telephone numbers, and being stored in a first memory location if said telephone number is not in said incoming recording memory, and being deleted from an existing memory location and being stored in a first memory location if said telephone number is currently in said incoming recording memory.  
 
     
     
       2. The digital radio telephone of  claim 1 , further comprising:
 an identification information memory for storing identification information corresponding to said telephone number information stored in the memory.  
 
     
     
       3. A digital radio telephone, comprising:
   a radio device configure to receive a radio signal modulated by an encoded digital signal including control information, to demodulate and to output said encoded digital signal;        a control signal processor configured to decode said demodulated encoded digital signal to obtain said control information;        a telephone number information detector configured to detect, before a speech path is established with an incoming call apparatus, an incoming telephone number information included in said control information;        a memory configured to store said incoming telephone number information, said memory having an incoming recording memory and a registering memory, with said incoming recording memory configured to store a telephone number and a time information of an incoming telephone call, and with said registering memory configured to store a telephone number and additional information related to said telephone number;        a time information management device configured to specify an incoming time of said incoming telephone number information to output said time information responsive to said telephone number information detector; and        a memory management device configured to record said incoming telephone number information corresponding to said time information into said memory, wherein        said memory management device, in the case where said incoming recording memory is fully occupied, is configured to delete an old incoming telephone number from said incoming recording memory and to record a new incoming telephone number information into said incoming recording memory together with said time information, and        said memory management device, in the case where said incoming recording memory has a vacant storage area, is configured to record said new incoming telephone number information into said incoming recording memory together with said time information.     
     
     
       4. The digital radio telephone according to  claim 3 , wherein
   said memory management device, in a case where a telephone number information corresponding to said incoming telephone number information is not registered in said registering memory, is configured to display said incoming telephone number information and said time information, and        said memory management device, in a case where said telephone number information corresponding to said incoming telephone number information was previously registered in said registering memory, is configured to display said incoming telephone number information, said time information and additional information registered in said registering memory.     
     
     
       5. The digital radio telephone according to  claim 4 , wherein said memory management device, in response to a redialing instruction, is configured to transmit said incoming telephone number information as control information to make a telephone call. 
     
     
       6. The digital radio telephone according to  claim 4 , wherein said memory management device, in response to a registering instruction, is configured to record said incoming telephone number information into said registering memory. 
     
     
       7. A digital radio telephone, comprising:
   a radio device configured to receive a radio signal modulated by an encoded digital signal including control information, to demodulate the radio signal, and to output said encoded digital signal;        a control signal processor configured to decode the demodulated encoded digital signal to obtain said control information;        a telephone number information detector configured to detect, before a speech path is established with an incoming call apparatus, an incoming telephone number information included in said control information;        a time information management device configured to specify an incoming time of said incoming telephone number information to output a time information, responsive to said telephone number information detector; and        a memory having an incoming recording memory and a registering memory, said incoming recording memory configured to store the incoming telephone number format and said time information of an incoming telephone call; and        a memory management device configured to record said incoming telephone number information corresponding to said time information into said incoming recording memory, and to display said incoming telephone number information and said time information on a display.     
     
     
       8. An incoming telephone number information recording method, comprising:
   receiving a radio signal including control information;        demodulating and decoding the received radio signal to obtain the control information;        detecting, before a speech path is established with an incoming call apparatus, an incoming telephone number information included in said control signal;        specifying, responsive to said telephone number information detecting step, an incoming time when said radio signal including said incoming telephone number information is received, and said time information management step; and        recording every incoming telephone number information and corresponding incoming time information, including performing one of        recording said incoming telephone number information and said incoming time information corresponding to said incoming telephone number information directly into a memory in the case where said memory has a vacant storage area, and        recording said incoming telephone number information and said incoming time information corresponding to said incoming telephone number information into said memory after deleting an old incoming telephone number information from said memory in the case where said memory is fully occupied.     
     
     
       9. A digital radio telephone, comprising:
   a radio device configured to receive a radio signal modulated by an encoded digital signal including control information, to demodulate the radio signal to obtain the encoded digital signal, and to output said encoded digital signal;        a control signal processor configured to decode said demodulated encoded digital signal to obtain said control information;        a telephone number information detector configured to detect, before a speech path is established, whether the decoded control information includes incoming telephone number information;        a time information management device configured to specify an incoming time of said telephone number information to output said time information, responsive to said telephone number information detector; and        a memory having an incoming recording memory configured to store a plurality of incoming telephone number information detected by said telephone number information detector and time information of a plurality of incoming time specified by said time information management device, and a registering memory configured to store a pre - registered telephone number and a corresponding identifier; and        a memory management device configured to store said incoming telephone number information corresponding to said time information into said memory.