JP2891939B2 - Digital cordless telephone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital cordless telephone, and more particularly to a digital cordless telephone having a plurality of communication modes respectively corresponding to a plurality of communication systems having different telephone number systems for calling a partner telephone. The present invention relates to a digital cordless telephone which performs outgoing, incoming and communication processing as a telephone terminal of a communication system corresponding to a set communication mode.

[0002]

2. Description of the Related Art Conventionally, a digital cordless telephone such as a PHS telephone having a plurality of communication modes (outdoor public mode, private mode, direct communication mode between handset units, etc.) corresponding to a plurality of communication systems has been used. The user sets an arbitrary communication mode to use. For example, when the user is outdoors and wants to make a call, the user sets the outdoor public mode and dials the other party's telephone number. At present, dials to be transmitted at this time are assigned a number band starting with “050”. Also, if the user is at work or at home,
When dialing is performed by using a parent device of a private communication system or a home communication system installed therein, a number assigned to each, for example, extension "20"
Dialing is performed using a dial such as "00". Further, when a telephone call is made between the handsets by direct communication between the child devices, a call is made using a dial number of up to four digits.

As described above, a digital cordless telephone generally has a plurality of communication modes, and the dial numbers in these modes are all different. In general, the communication mode setting is arbitrarily set by the user of the telephone, and after setting, the communication mode is generally fixed to the mode.

[0004]

In the above-mentioned conventional digital cordless telephone, since the communication mode is arbitrarily set by the user, when making a call between digital cordless telephones, the telephone of the other party (called side) is called. Does not know which mode is set by the calling party. In the outgoing / incoming call control of the telephone, since the outgoing / incoming call control information is exchanged only in the same communication system corresponding to each communication mode, if the communication modes set in each telephone are different from each other, this control is performed. Cannot be performed, and it is impossible to make a call at all. That is, when the calling side and the called side are set to different communication modes, there is a drawback that no incoming / outgoing call can be made at all, even when both telephones are in an available area.

[0005] An object of the present invention is that even when a call is made in an arbitrary communication mode, even when the called telephone is set to a communication mode different from that of the calling telephone and the other party cannot call, the coincidence occurs. It is an object of the present invention to provide a digital cordless telephone capable of automatically selecting a communication mode and receiving an incoming call at a partner telephone.

SUMMARY OF THE INVENTION A digital cordless telephone according to the present invention has a plurality of communication modes corresponding to a plurality of communication systems having different telephone number systems for calling a partner telephone, respectively. A digital cordless telephone which performs outgoing, incoming and outgoing communication processing as a telephone terminal of a communication system corresponding to the selected and set communication mode, a number registering means for registering a telephone number corresponding to each communication mode for each of the other telephones; When a call is made to the other party's telephone, a call is made with a telephone number corresponding to a communication mode set in advance, and when a response signal from the other party's telephone is not obtained, the communication mode is automatically switched to another communication mode. The number registration means is searched, and the registered telephone number of the other party's telephone corresponding to the communication mode after the switching is used. And a sequentially repeating control means responsive to the signal is obtained to make a recurring call.

In the above-mentioned configuration, the communication mode is a PHS telephone having an outdoor public mode, a private mode, and a direct communication mode between handset units. If a response signal is not obtained in the communication mode, an error notification is made by an audible sound and / or a visual display, or a number registration button for instructing the start of telephone number registration processing is provided. When the button is pressed, a telephone number corresponding to each communication mode for each of the other telephones can be registered in the number registration means using a numeric keypad for manually inputting a telephone number and making a call. .

According to the present invention, when a digital cordless telephone originates a call, even if the receiving telephone is in a different communication mode, a coincident communication mode is automatically selected and the communication mode is selected. Dialing the other party's phone number corresponding to the communication mode, so there is no need to reset the communication mode or dial the phone code of the other party corresponding to that communication mode if they are within the wireless service area. Can be eliminated.

[0008]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is an external view thereof. The digital cordless telephone of the present embodiment is a PHS telephone 1 used in a simplified portable telephone system (PHS), and has a control unit 11 for controlling the entire telephone and a PS number registration for storing a telephone number for each communication mode of the telephone. Part 12 and off-hook button 1
31, on-hook button 132, number registration button 13
A key button unit 1 having key switches corresponding to the 3, and ten-key buttons 134 and allowing the user to input information such as a dial.
3, a radio unit 14 that modulates and demodulates a radio signal transmitted and received through an antenna 19 and superimposes a data signal.
An audio signal processing unit 15 for processing an audio signal to the radio unit 14; a microphone unit 16 having a microphone 161 and an amplifier for converting audio into an audio signal and outputting the audio signal to the audio processing unit 15
And a speaker unit 17 having an amplifier and a speaker 171 and outputting a sound signal from the sound processing unit 15 as audible sound.
And a display unit 18 having a liquid crystal display (LCD) 181 and a display driver for visually displaying data from the control unit 11.

Next, the operation will be described.

[0011] The user of the PHS telephone 1 has previously set each communication mode (direct communication mode between slave units, private mode,
Phone number registration in outdoor public mode). A method of registering the telephone number data will be described with reference to FIGS. 1 and 2 and a flowchart of FIG. First, when the number registration button 133 is pressed, the display 18
In FIG. 1, a data input waiting screen shown in step S11 of FIG. 3 is displayed. Here, when the number of the telephone set (PS) to be registered is input by using the ten-key button 134 (step S12), the apparatus enters a state of waiting for registration of a number in the direct call mode between slave units (step S13). Here, when the telephone number of the telephone set to be registered in the direct communication mode between the slave units is input by the ten-key button 134 (step S14), the screen for waiting for the input of the next telephone number in the self-employment mode is displayed (step S15). Here, when the telephone number of the telephone to be registered in the private mode is input by the ten-key button 134 (step S16), a screen for waiting for the input of the next telephone number in the outdoor public mode is displayed (step S17).
Here, when the telephone number of the telephone set to be registered in the outdoor public mode is input using the ten-key button 134 (step S).
17), telephone numbers in all communication modes are input, and the process ends. When registering the telephone number of another telephone, the above processing (steps S11 to S18) is repeated. The telephone number data thus input is all registered and stored in the PS number registration unit 12 by the control unit 11. In the example shown in FIG. 1, the telephone number of the registration number PS1 is “10” for the direct communication mode between child devices, “1000” for the private mode, and “050-1” for the public mode.
000000 ”, and PS2 to P
The number in each communication mode is also registered for S5.

The above-mentioned input method is an example of a telephone number input method, and other input methods, for example, a method of inputting from a data processing device such as a personal computer by appropriately providing a data input means, may be used. included.

Next, the operation when making a call from the PHS telephone 1 to another telephone will be described with reference to FIGS.
Will be described with reference to the control flow chart of FIG. When the user presses the off-hook button 132 and the numeric keypad button 134 to start the calling operation and the pressing of the dial, the control unit 11 controls the wireless unit 14 based on the dial information and sends out the dial information of the called party (step S21). . In this case, the number to be dialed here is a number corresponding to the communication mode already set in the PHS telephone 1 on the calling side. For example, the call partner is the PS number registration unit 1 shown in FIG.
2 and the calling telephone is set to the outdoor public mode, the number "050-1234567" of the other party is dialed. By using a well-known abbreviated dialing technology, the PS number registration unit 12 is searched with the designated PS2 from among the registered PSs, and the corresponding partner number “050-12” is retrieved.
34567 "may be automatically dialed.

If the other party's telephone is also set to the outdoor public mode, the information of the response from the other party's telephone is returned via the public communication system (YES in step S22). In the mode (step S23), when the other party is set to another mode, for example, when the other party is set to the self-employed mode, even if the response information is passed for a certain period of time, the other party Is not returned from the telephone set (NO in step S22).

At this time, the control unit 11 performs setting change control of the communication mode (step S24), changes the mode to the private mode, reads the data of the PS number registration unit 12, and reads the PS2 stored in the registered PS. Is controlled by using "1020" which is a dial in the self-employed mode. In this control, the operation is performed by the control unit 11 performing processing on the wireless unit 14 (step S26). It is to be noted that if the speed dialing technique is used at the first dialing, the PS number registration unit 12 recognizes that the other party to be dialed is PS2 by the designation at that time, and if the dialing is manual dialing, the number is “050-1234567”. By searching for and detecting that it is registered for PS2.

If the other party's telephone is set to the private mode, response information from the other party's telephone is returned via the private communication system (step S).
27 (YES side), a call in this mode is enabled (step S28). Even in this mode, if the response information from the other party's telephone does not return within a certain period of time (NO side of step S27), the same processing is repeated thereafter (steps S24 to S28) to perform a direct telephone call between slave units. Dial control of the mode number "20" is performed and a call is transmitted.

The above-described control is performed for all communication modes (outdoor public mode, private mode, and direct communication mode between handset units). Since the power is turned off or out of service area, the transmission control is terminated and error processing is performed, and an error tone is output from the speaker 171 or an indication that there is no response is displayed on the display 181. To the user.

As described above, according to the PHS telephone 1, even if the communication mode initially set is different from the communication mode set for the other party's telephone, that is, even if the communication system to which it belongs, it is automatically set. Since the call is transmitted in accordance with the communication mode of the other party, the call can be made.

[0019]

According to the present invention, a digital cordless telephone which allows a user to select an arbitrary communication mode is provided with a number registering means for registering a telephone number corresponding to each communication mode for each of the other telephones. Therefore, even if the other party's phone cannot be called because the other party's phone is set to a communication mode different from the communication mode initially set for the own phone, the corresponding communication mode is automatically selected and It is possible to make an incoming call by number, eliminating the need for the calling user to change the communication mode setting and redial the corresponding telephone number, improving the operability service. it can.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is an external view of the embodiment of FIG. 1;

FIG. 3 is a flowchart showing a procedure for registering a telephone number in the present invention.

FIG. 4 is a flowchart showing a procedure of communication mode automatic setting control in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PHS telephone 11 Control part 12 PS number registration part 13 Key button part 14 Radio part 15 Audio signal processing part 18 Display part 181 Display 131 Off hook button 133 Number registration button 134 Numeric keypad

Claims (4)

(57) [Claims] 1. A communication system having a plurality of communication modes respectively corresponding to a plurality of communication systems having different telephone number systems for calling a partner telephone, and corresponding to a communication mode arbitrarily selected and set. In a digital cordless telephone which performs outgoing, incoming and communication processing as a telephone terminal, a number registering means for registering a telephone number corresponding to each of the communication modes for each of the other telephones; Call with the phone number corresponding to the communication mode
When a response signal from the other telephone cannot be obtained, the communication mode is automatically switched to another communication mode, and the number registration means is searched and automatically registered with the registered telephone number of the other telephone corresponding to the communication mode after the switching. A digital cordless telephone, comprising: control means for sequentially repeating recalling until a response signal is obtained. 2. The digital cordless telephone according to claim 1, wherein the PHS telephone has an outdoor public mode, a private mode, and a direct communication mode between handset units as the communication mode. 3. The method according to claim 1, wherein, when a response signal is not obtained in all communication modes at the time of calling the other party's telephone, an error notification is given by an audible sound and / or a visual display. Digital cordless telephone. 4. A number registration button for instructing the start of a telephone number registration process, and when the number registration button is pressed, the number is entered using a numeric keypad for manually inputting and calling a telephone number. 2. The digital cordless telephone according to claim 1, wherein a telephone number corresponding to each communication mode for each of the other telephones is registered in a registration unit.