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.

What is claimed is: 
     
       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, 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;   an operation portion for inputting an operation signal to cause a predetermined operation to be carried out; and   a display portion for displaying display information based on said telephone number information,   wherein a plurality of said display information are ranked for being displayed on said display portion and displayed on said display portion in sequence from said display information with a downward ranking order, in accordance with the ranking, depending on said operation signal, and   when said operation signal is inputted after a display information with the lowest ranking was displayed, said display information with the highest ranking is displayed.   
     
     
       4. The digital radio telephone according to claim 3 or 5, wherein calling process 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. 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;   an operation portion for inputting an operation signal to cause a predetermined operation to be carried out; and   a display portion for displaying display information based on said telephone number information,   wherein a plurality of said display information are ranked for being displayed on said display portion and displayed on said display portion in sequence from said display information with a downward ranking order, in accordance with the ranking, depending on said operation signal, and   when said operation signal is inputted after a display information with the highest ranking was displayed, said display information with the lowest ranking is displayed.   
     
     
       6. The digital radio telephone according to claim 3 or 5, 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. 
     
     
       7. The digital radio telephone according to claim 3 or 5, wherein, in case the telephone number information is not included in the control information, a storing operation is not carried out for said incoming recording memory. 
     
     
       8. The digital radio telephone according to claim 3 or 5, 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 including telephone number information which is 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.   
     
     
       9. The digital radio telephone according to claim 8, wherein the ranking is carried out based on incoming time information. 
     
     
       10. The digital radio telephone according to claim 8, 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. 
     
     
       11. A digital radio telephone comprising:
 a radio device for receiving a radio signal modulated by an encoded-digital signal including control information, and for outputting a demodulated signal;   a control signal processor for decoding the control information from the demodulated encoded-digital signal having been outputted from said radio device;   a telephone number information detector for detecting the presence or absence of an incoming-call apparatus' telephone-number information included in the decoded control information before a speech path is to be established;   a time information management device responsive to the telephone number information detector for outputting incoming time information corresponding to the telephone-number information;   an incoming recording memory for storing a plurality of information-sets each of which is made as a pair of telephone-number information having been detected by said telephone number information detector, and incoming time information, corresponding to the telephone-number information, having been outputted by said time information management device;   an operation portion for inputting an operation signal to cause a predetermined operation to be carried out; and   a display portion for displaying display information,   wherein said display portion is configured to display, depending on the operation signal inputted from said operation portion, the display information based on the plurality of information-sets corresponding to the incoming time information stored in said incoming recording memory,
 a) in a descending order starting from the telephone-number information of the latest incoming call that has been most recently received, and 
 b) starting from the telephone-number information of the latest incoming call, followed by the earliest telephone-number information, and the next earliest telephone-number information, in an ascending order. 
   
     
     
       12. The digital radio telephone according to claim 11, wherein the incoming recording memory stores information-sets which correspond to information on a given number of telephone numbers, starting from telephone-number information of the latest incoming call. 
     
     
       13. The digital radio telephone according to claim 11, wherein an information-set corresponding to the telephone-number information of the latest incoming call is only stored into the incoming recording memory, from among a plurality of identical sets of received telephone-number information. 
     
     
       14. The digital radio telephone according to claim 11, wherein display information based on information-sets stored in the incoming recording memory is displayed on the display portion, and a calling process is performed for the telephone-number information included in an information-set corresponding to the displayed display information according to the operation signal inputted from the operation portion. 
     
     
       15. The digital radio telephone according to claim 11, wherein, when communications between a first telephone network and a second telephone network are carried out, additional information required for calling from the first telephone network to the second telephone network is added to telephone number information having been detected by the telephone number information detector, and stored in the incoming recording memory. 
     
     
       16. The digital radio telephone according to claim 11, wherein a write control is taken on an information-set corresponding to the detected telephone-number information to said incoming recording memory, based on either the state of availability in a memory area of the incoming recording memory, or whether telephone-number information detected by the telephone number information detector is included or not in said incoming recording memory. 
     
     
       17. The digital radio telephone according to claim 11, wherein, when telephone-number information is not included in the control information, a storing operation is not carried out for the incoming recording memory. 
     
     
       18. The digital radio telephone according to claim 11, further comprising a registration-information memory for registering predetermined telephone-number information and additional information that relates to the telephone-number information, so as to be correlated with each other. 
     
     
       19. The digital radio telephone according to claim 18, wherein, when telephone-number information stored in the incoming recording memory is the same as the telephone-number information that is already stored in the registration-information memory, additional information corresponding to the telephone-number information stored in said registration-information memory is displayed on the display portion. 
     
     
       20. The digital radio telephone according to claim 18, wherein display information based on information-sets stored in the incoming recording memory is displayed on the display portion, and information included in the information-sets is registered into the registration-information memory according to the operation signal inputted from the operation portion.