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 configured to receive a radio signal modulated by an encoded digital signal including control information, to demodulate said radio 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 with an incoming call apparatus, incoming telephone number information included in said control information;        an incoming call memory configured to store incoming telephone number information corresponding to a plurality of incoming calls;        a display portion configured to display information based on said telephone number information; and        a registration memory configured to store a telephone number information and additional information related to said telephone number information;        an operation portion for generating an operation signal which instructs display by said display and enables registration of telephone number information in said registration memory; wherein        said display portion in accordance with the operation signal is configured to display at least said additional information when received telephone number information is the same as previously stored telephone number information, and        said display portion is configured to display a plurality of telephone number information stored in said incoming call memory when received telephone number information is not the same as previously stored telephone number information, and in accordance with the operation signal, said registration memory is enabled for registration of the received and displayed telephone number information in said registration memory.     
     
     
       4. The digital radiotelephone according to  claim 3 , further comprising:
   a time information management device configured to output incoming time information which corresponds to the telephone number information detected by said telephone number information detector, wherein        said incoming call memory is further configured to store said incoming time information.     
     
     
       5. The digital radio telephone according to  claim 4 , wherein said incoming call memory is configured to store said incoming telephone number information starting from telephone number information which has been received most recently. 
     
     
       6. The digital radio telephone according to  claim 4 , wherein said incoming memory is configured to replace a previously stored telephone number information with telephone number information that has been received most recently from an identical telephone number. 
     
     
       7. The digital radio telephone according to  claim 3 , wherein the operation portion is configured to generate another operation signal which instructs a calling process in accordance with telephone number information of information which is displayed on said display portion. 
     
     
       8. The digital radio telephone according to  claim 3 , wherein, writing control of an information set which corresponds to said detected telephone number information is carried out to said incoming call memory on the basis of a vacant condition of a storage area of the incoming call memory or whether telephone number information, which was detected by the telephone number information detector, is included in said incoming recording memory. 
     
     
       9. The digital radio telephone according to  claim 3 , wherein the incoming call memory is further configured not to record data when telephone number information is not included in said control information.