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 including 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, for demodulating and outputting 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;        an incoming recording memory for storing a plurality of said incoming telephone number information of another apparatus which is included in said control information detected by said telephone number information detector;        an operation portion for inputting an operation signal that causes a predetermined operation to be performed; and        a display portion for displaying display information, wherein,        said display portion displays display information based on telephone number information stored in said incoming recording memory, depending on the predetermined operation of the operation signal inputted from said operation portion,        and in case that the telephone number information is not stored in said incoming recording memory, display information indicating that the telephone number information is not stored is displayed on said display portion.     
     
     
       4. The digital radio telephone according to  claim 3 , wherein calling processing to telephone number information of display information which is displayed on said display portion, is carried out depending on an operation signal which is inputted from said operation portion. 
     
     
       5. The digital radio telephone according to  claim 3 , wherein, in case of carrying out communication between first and second communication networks mutually, additional information, which is required for calling from said first telephone network to said second telephone network, is added to telephone number information detected by said telephone number information detector, to be stored in said incoming recording memory. 
     
     
       6. The digital radio telephone according to  claim 3 , wherein, in case that telephone number information is not included in control information, a storing operation is not carried out for said incoming recording memory. 
     
     
       7. The digital radio telephone according to  claim 3 , further comprising:
   a time information management device for outputting incoming time information which corresponds to telephone number information detected by said telephone number information detector,        wherein said incoming recording memory stores a plurality of information sets in which telephone number information which detected by said telephone number information detector, and incoming time information which corresponds to the telephone number information and was outputted by said time information management device.     
     
     
       8. The digital radio telephone according to  claim 7 , wherein said incoming recording memory stores information sets which correspond to the given number of telephone number information, starting from telephone number information which has been received most recently. 
     
     
       9. The digital radio telephone according to  claim 7 , wherein said incoming recording memory stores only an information set which corresponds to telephone number information that has been received most recently, among a plurality of incoming identical telephone number information.