Radio Telecommunication apparatus

• US 5,602,900 A
• Filed: 08/29/1994
• Issued: 02/11/1997
• Est. Priority Date: 01/18/1990
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Corporation
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Hattori, Kiyoshi
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): Oehling, G. J.
• Application Number:
  US08/297,412
• Time in Patent Office: 897 Days
• Field of Search: 379/58, 379/59, 379/61, 379/62, 379/67, 379/88, 379/212, 455/67.7, 455/33.1, 455/54.1
• US Class Current: 455/566
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones
• CPC Class Codes: H04M 19/04 the ringing-current being generated at the substations
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/30 Connection release
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

The cellular mobile telephone apparatus comprises a radio unit having an antenna, and a telephone unit which is connected to the radio unit via a line and is formed of a main unit and handset. To originate a call, a user dials the telephone number of an other party to be called. When the dialing is detected, a calling tone indicating to the user that the call being originated is generated from a speaker of the telephone unit. To start speech communication, it is necessary to designate and capture a speech channel in the radio channel. When the capture of the designated speech channel is detected, the calling tone is stopped. After the communication, there are three types of terminating the call. At the end of communication, the type of the termination is detected and the corresponding synthesized voice message is generated.

Claims

1. A radio telecommunication apparatus connectable to a base station over a radio channel including a control channel and a speech channel, said radio telecommunication apparatus comprising:

first detecting means for detecting an origination of a call to another party, the originated call including a telephone number of the other party use by said base station in calling the other party;

means for establishing a speech channel between said base station and said radio telecommunication apparatus when said base station calls the other party;

second detecting means for detecting the establishment of the speech channel; and

first indicating means, connected to said first and second detecting means, for indicating that the origination of the call has been detected by said first detecting means and the establishment of the speech channel has not yet been detected by said second detecting means, wherein the first indicating means begins indicating after the origination of the call and stops indicating after the establishment of the speech channel.

2. The apparatus according to claim 1, wherein said first indicating means comprises means for generating a sound representing a ring-back tone.

3. The apparatus according to claim 1, wherein said first detecting means comprises means for detecting a dialing of a telephone number.

4. The apparatus according to claim 1, further comprising:

third detecting means for detecting a termination of the call and a reason for the termination of the call; and

second indicating means, connected to said third detecting means, for indicating the reason for the termination of the call.

5. The apparatus according to claim 4, wherein said third detecting means comprises means for detecting whether or not the user makes a termination operation, means for detecting whether or not the other party makes a termination operation, and means for detecting disconnection of the speech channel.

9. The apparatus according to claim 1, wherein said first indicating means comprises means for generating a dual tone multi-frequency tone.

10. The apparatus according to claim 1, wherein said first indicting means comprises means for generating a synthesized speech message.

16. The apparatus according to claim 1, wherein said first detecting means detects depression of a SEND key as an origination of a call to said base station over said radio channel.

17. The method according to claim 16, wherein the call origination request is generated when a SEND key is pressed by a user of said radio telecommunication apparatus.

6. A radio telecommunication apparatus which is connectable to a base station over a radio channel and which communicates with a telecommunication apparatus of another party via said base station, said radio telecommunication apparatus comprising:

detecting means for detecting a termination of communication and a reason for the termination, said detecting means comprising means for detecting whether a user of the radio telecommunication apparatus causes a termination operation, means for detecting whether the other party causes a termination operation, and means for detecting a disconnection of said radio channel; and

indicating means, connected to said detecting means, for indicating the reason for the termination.

7. The apparatus according to claim 6, wherein said indicating means comprises means for generating a synthesized voice message expressing the reason for the termination.

8. A method of originating a call from a radio telecommunication apparatus which is connectable to a base station over a radio channel which includes a control channel and a speech channel, the method comprising the steps of:

generating a call origination request with an identification number of a telecommunication apparatus of another party to be called over the control channel;

generating an indication tone upon the generation of the call origination request;

seizing a speech channel in accordance with a channel designation signal which is supplied from the base station; and

terminating the generation of the indication tone upon the seizing of the speech channel.

11. The method according to claim 8, wherein the step of generating an indication tone comprises generating a sound representing a ring-back tone.

12. The method according to claim 8, wherein the step of generating an indication tone comprises generating a dual tone multi-frequency tone.

13. The method according to claim 8, wherein the step of generating an indication tone comprises generating a synthesized speech message.

14. The method according to claim 8, further comprising the steps of:

detecting termination of the call and a reason for termination of the call; and

indicating the reason for termination of the call.

15. A method of terminating a call of a radio telecommunication apparatus which is connectable to a base station over a radio channel, the method comprising the steps of:

detecting a termination of the call;

detecting one of a plurality of reasons for the termination of the call, the detecting of one of a plurality of reasons comprising detecting whether a user of the radio telecommunication apparatus causes a termination operation, detecting whether the other party causes a termination operation, or detecting a disconnection of said radio channel; and

indicating to a user of said radio telecommunication apparatus which one of the plurality of reasons has been detected as the reason for the termination of the call.

18. The method according to claim 15, wherein the step of indicating comprises indicating which one of the plurality of reasons has been detected as the reason for the termination of the call using a synthesized speech message.

19. A radio telecommunication apparatus connectable to a base station over radio channels including control channels and speech channels, said radio telecommunication apparatus comprising:

supplying means for supplying a telephone number of a party to be called;

transmission initiating means for initiating a transmission process for transmitting a call origination signal including said telephone number to said base station;

first detecting means for detecting the initiation of said transmission process;

seizing means for seizing a control channel;

a transmitter, responsive to said initiating means, for transmitting said call origination signal to said base station over said seized control channel;

establishing means for establishing a speech channel between said base station and said radio telecommunication apparatus based on a speech channel designation signal supplied from said base station;

second detecting means for detecting the establishment of the speech channel; and

first indicating means, connected to said first and second detecting means, for indicating that the initiation of the transmission process has been detected by said first detecting means and that the establishment of the speech channel has not yet been detected by said second detecting means, wherein the first indicating means begins indicating after the initiation of the transmission process and before the seizing of the control channel and stops indicating after the establishment of the speech channel and before communication with the other party.

20. The apparatus according to claim 19, wherein said supplying means comprises a keypad for supplying a telephone number of the other party.

21. The apparatus according to claim 19, wherein said supplying means comprises a voice dialer for recognizing a name of the other party and supplying a corresponding telephone number.

22. The apparatus according to claim 19, wherein said transmission initiating means includes a keypad having a SEND key which is actuated by a user of said radio telecommunication apparatus for initiating said transmission process.

23. The apparatus according to claim 19, wherein said transmission initiating means includes a timer for initiating said transmission process a predetermined period of time after the supplying of the telephone number.

24. The apparatus according to claim 19, wherein said first indicating means comprises calling tone generating means for generating a calling tone.

25. The apparatus according to claim 19, wherein said transmission initiating means is responsive to receipt of coins or a money card.