JPH08149561A - Digital cordless telephone set - Google Patents

Abstract

PURPOSE: To provide the digital cordless telephone set which suppresses the sound volume of the ringing tone for incoming on the outside of user's home and increases this sound volume in user's home. CONSTITUTION: A mobile machine 1 is provided with an area switching button 14 and a control means 13. When the area switching button 14 is switched to the 'outdoor' side, the control means 13 controls a sound volume switching means 11 so that the signal of a middle sound volume is outputted from the sound volume switching means 11 to a speaker 12 when a sound volume switching button 15 is switched to 'large' or 'middle' sound volume of the ringing tone. When the area switching button 14 is switched to the 'indoor' side, the control means 14 controls the sound volume switching means 11 so that the signal of the large sound volume, the middle sound volume, or the small sound volume is outputted from the sound volume switching means 11 to the speaker 12 in accordance with 'large', 'middle', or 'small' sound volume of the ringing tone to which the sound volume switching button 15 is switched to.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile device of a digital cordless telephone which can be used by connecting to both a base station in a public system serviced by a communication business operator and a base station in a self-employed system used for self-employment. .

[0002]

2. Description of the Related Art Conventionally, as a wireless telephone,
Mobile phones, which are often carried around and carried around, and cordless phones, which are usually carried in the home and used only in one corner.

By the way, in recent years, as a self-employed system at home, it is often placed in a corner of the house as in a conventional cordless telephone, while outside the home, it is carried around like a mobile telephone. Some phones are capable of being serviced by public systems. This telephone is called a digital cordless telephone.

[0004]

However, when this digital cordless telephone is used outside the home under the service of a public system, the user carries the telephone and moves, so that an incoming call is received. Even if the volume of the incoming call signal is small, the user can sufficiently know the incoming call.
Therefore, outside the home, if the incoming signal is too large, it is not only useless, but also annoy other people.

When the digital cordless telephone is placed in one corner of the home and used as a self-employed system at home, the user is often away from the telephone (mobile device). Therefore, if the mobile device of the digital cordless telephone is placed on the charger, an incoming signal with a sufficient volume can be sounded, and the user can be surely notified of the incoming call. However, when the mobile device is detached from the charger, the ringtone sounds at a low volume, which causes a problem that the user cannot know the incoming call.

SUMMARY OF THE INVENTION An object of the present invention is to provide a digital cordless telephone which can suppress the ringing tone outside the house while increasing the ringing tone of the incoming call inside the house.

[0007]

In order to achieve the above object, a digital cordless telephone of the present invention comprises a receiving means for receiving a received signal notifying an incoming call, and a decoding means for decoding the received signal received by the receiving means. Means, a ringing tone generating means for outputting a ringing tone of an audible frequency, a control means for receiving the decoded control signal from the decoding means, and activating the ringing tone generating means, and a control from the control means. Upon receiving the signal, the volume switching means for switching the volume of the ringing tone output by the ringing tone generating means and the signal for outputting to the control means cause the control means to control the volume switching means, so that the public Volume of the ringing tone output by the ringing tone generation means when there is an incoming call from the base station of the private system, It is characterized in that a area-specific volume control means for less than the volume of the ringing tone output from the sound generating means.

[0008]

In the digital cordless telephone of the above-mentioned invention, when the receiving means receives the received signal indicating the incoming call, the decoding means decodes the received signal from the receiving means to create a control signal. Then, the volume switching means receives the control signal from the control means and switches the volume of the ringing sound output by the ringing sound generating means. This switching is performed by the area-by-area volume control means outputting a signal to the control means. That is, the area-by-area volume control means outputs a signal to the control means, whereby the control means controls the volume switching means, and when there is an incoming call from the base station of the public system outside the house, The volume of the ringing tone output by the ringing tone generating means is set to be smaller than the volume of the ringing tone output by the ringing tone generating means when an incoming call is received from the base station of the self-employed system at home.

Therefore, according to the present invention, since the ringing tone is small outside the home, no trouble is caused to others, and the ringing tone is large inside the home, so that the user can stay away from the telephone. Can reliably notify the incoming call.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments.

FIG. 1 shows the configuration of a mobile device 1 which is an embodiment of the digital cordless telephone of the present invention. As shown in FIG. 1, the mobile device 1 includes an antenna 2, a receiving unit 3, a transmitting unit 4, a coding / decoding unit 5, and amplifying units 6 and 7.
Speaker 8, microphone 9, and amplification means 10 for ringing tone
1, a ringing tone volume switching unit 11A, a calling speaker 12, a control unit 13, an area switching button 14, and a ringing tone volume switching button 15. The code decoding means 5 has a decoding means in addition to the coding means.

The receiving means 3 and the transmitting means 4 are connected in parallel between the antenna 2 and the coding / decoding means 5. The amplifying means 6 and 7 are connected between the speaker 8 and the microphone 9 and the code decoding means 5. The control means 13 is connected to the encoding / decoding means 5, and the area switching button 14 and the volume switching button 15 are connected to the input side of the control means 13, and the control means is connected. On the output side of 13, the amplification means 10 and the volume switching means 1
1A is connected. The amplification means 10 and the volume switching means 11A are connected. A speaker 12 is connected to the output side of the volume switching means.

As shown in FIG. 2, the ringing tone volume switching means 11A includes a series circuit S1 in which a capacitor 16, a resistor 18 and a transistor 20 are connected in series, a capacitor 17, a resistor 19 and a transistor 21. The series circuit S2 connected in series is configured by a circuit connected in parallel.

In this telephone, first, the call signal is transmitted to the mobile unit 1.
When the input signal is input to, the calling signal is received by the antenna 2 and the receiving means 3, decoded by the code decoding means 5, and then output to the control means 13. When the control means 13 determines that the calling signal is a calling signal,
A ringing tone signal is output from the output terminal 13a. The output ringing tone signal is amplified by the amplifying means 10,
It is input to the ringing tone volume switching means 11A, converted into a signal of a predetermined volume by the ringing tone volume switching means 11A, and output from the speaker 12 as a ringing tone. The volume of the ringing tone can be set to any of about three volumes, "high", "medium", and "low". This setting is determined by a combination of ON / OFF of the transistors 20 and 21 included in the ringing tone volume switching means 11A. Specifically, the volume is “high” when both the transistors 20 and 21 are off, the volume is “medium” when the transistor 20 is on, and the transistor 21 is off,
The volume is low when both transistors 20 and 21 are on.

Next, the operation of the digital cordless telephone having the above configuration will be described with reference to the flow chart shown in FIG.

First, the process proceeds from the standby state to step S1
In step S1, it is determined whether the area switching button 14 is switched to the "indoor" side or the "outdoor" side, and when it is determined that the "indoor" side is switched to, the process proceeds to step S3. When it is determined that the outdoor side has been selected, the process proceeds to step S2.

At step S2, the control means 13 sets the encoding / decoding means 5 in the state of waiting for the public base station. Also,
In step S3, the control means 13 sets the encoding / decoding means 5 in a state of waiting for a self-employed base station.

Next, in step S4, it is determined whether or not an incoming call signal has been received. When it is determined that the incoming call signal has been received, the process proceeds to step S5, and when it is determined that it has not been received, the standby state is returned to.

In step S5, the control means 5 determines whether the state of the area is outdoor or indoor (that is, whether the area switching button 14 is switched to the "indoor" side or the "outdoor" side. ), The process proceeds to step S7 when it is determined to be outdoors, and the process proceeds to step S6 when it is determined to be indoors. In step S6,
In the control means 13, the volume switching button 15 is set to "high", "medium",
Judge whether it is switched to "small",
When it is determined that it is switched to "large", the process proceeds to step S10, when it is determined that it is switched to "medium", the process proceeds to step S9, and when it is determined that it is switched to "small", the process proceeds to step S8.

On the other hand, in step S7, the control means 13
Determines whether the volume switching button 15 is switched to "high", "medium", or "small". When it is determined to be "high", the process proceeds to step S9, "medium".
If it is determined that the switch has been switched to, the process proceeds to step S9, and if it is determined that the switch has been switched to "small", the process proceeds to step S8.

Then, in step S8, the control means 13
Controls the volume switching means 11A to cause the speaker 12 to emit a ring tone at a low volume. Further, in step S9, the control means 13 controls the volume switching means 11A so that the speaker 12 sounds the ring tone at a medium volume. Further, in step S10, the control means 13 controls the speaker 1
Volume switching means 1 so that the ringtone sounds at a high volume from 2
Control 1A.

Then, in step S11, the control means 1
Reference numeral 3 determines whether or not a call start operation is performed, and when it is determined that the operation is performed, the code decoding means 5 is controlled to enter the call state. On the other hand, when it is determined that the call start operation has not been performed, the process returns to step S4.

As described above, according to the first embodiment, when the area switching button 14 is operated to the "outdoors" side, the control means 13 causes the volume switching button 15 to have the volume "high" or "medium". When it is set to, the volume switching means 11A is controlled so that the ring tone is emitted from the speaker 12 at the volume "medium" when the incoming call signal is received. Then, when the volume switching button 15 is set to the volume "low", the control means 13 causes the speaker 12 to ring the ring tone at the volume "low" when the incoming call signal is received.
Control A.

On the other hand, when the area switching button 14 is operated to the "indoor" side, the control means 13 controls the volume switching button 1
When 5 is set to the volume "high", "medium", "low", when the incoming call signal is received, the ring tone from the speaker 12 is set to the volume "high", "medium", "low", respectively. The volume switching means 11A is controlled so as to ring.

That is, according to the first embodiment, by operating the area switching button 14 to the "outdoors" side outdoors, even if the volume switching button 15 is set to "loud", the incoming call is received. The sound can be played at the volume "medium". Therefore, according to the first embodiment, it is possible to prevent the ringing tone from being played at a large volume outdoors, so that there is no fear of disturbing others. Further, since the user wears the mobile device 1 outdoors, the user can know the incoming call without making a large ring tone.

On the other hand, at home, by operating the area switching button 14 to the "indoor" side, a ring tone can be produced in accordance with the volumes "high", "medium", and "low" set by the volume switching button 15. it can. Therefore, the volume of the ring tone can be changed according to the size of the distance between the user and the mobile device 1.

As described above, according to the first embodiment, by operating the area switching button 14, the maximum incoming call volume outside the home is suppressed as compared with the incoming call volume inside the home. Therefore, it is possible to prevent annoying to others by a loud ringtone outdoors. On the other hand, at home, the ringtone can be set to a high volume, so that the incoming call can be surely notified even if the user is away from the mobile device.

Next, a second embodiment of the present invention will be described. The second embodiment is the volume switching means 11 shown in FIG.
3 except that the volume switching means 11B shown in FIG. 3 is provided, and that the operation content of the control means 13 is changed from the flowchart shown in FIG. 4 to the flowchart shown in FIG. Different from the first embodiment. Therefore, the first
The points different from the embodiment will be mainly described.

The volume switching means 11B of the second embodiment is
In addition to the series circuits S1 and S2 shown in FIG.
3 are connected in parallel. In this series circuit S3, a capacitor 22, a resistor 23, and a transistor 24 are connected in series.

The operation from step S21 to step S25 in the flow chart of FIG. 5 showing the operation of the second embodiment having this configuration is performed by step S of the flow chart shown in FIG.
It is the same as the operation from 1 to step S5.

In step S25, the control means 13 determines whether the area is outdoors or indoors (that is, whether the area switching button 14 is on the "indoors" side or the "outdoors" side) and is outdoors. If it is determined to be indoors, the process proceeds to step S27. If it is determined to be indoors, the process proceeds to step S26.

In step S27, the control means 13 turns on the transistor 24 of the ring back tone switching means 11B.
Then, the set volume levels "high", "medium", and "low" determined by the combination of turning on and off the transistors 20 and 21 are reduced at a predetermined rate.

In step S26, the control means 13 determines whether the volume switching button 15 is switched to "high", "medium", or "small", and determines that it is switched to "high". The process sometimes proceeds to step S28, the process proceeds to step S29 when it is determined to be "medium", and the process proceeds to step S28 when it is determined to be "small".

Then, in step S28, the control means 1
3 controls the volume switching means 11 to turn on the transistor 20.
Turn on both and 21. Therefore, when the area switching button 14 is on the indoor side, the step S27 has not been performed, and the transistor 24 is off, the speaker 12 outputs a low-volume ringing tone.
On the other hand, if the area switching button 14 is on the "outdoor" side and the process goes through step S27, the transistor 2
Since 4 is turned on, compared to the case where the area switching button 14 is on the "indoor" side, a very small ring tone with a low volume level is output from the speaker 12.

In step S29, the control means 13
Controls the volume switching means 11 to turn on the transistor 20 and turn off the transistor 21. Therefore, when the area switching button 14 is set to the indoor side and the step S27 is not performed, the transistor 24 is turned off, so that the speaker 12 outputs a medium-volume ring tone. On the other hand, the area switching button 14 is "outdoor"
When it is on the side and the signal passes through step S27, the transistor 24 is on, so the volume level is lower than when the area switching button 14 is on the "indoor" side. A low-volume ringing tone is output from the speaker 12.

In step S30, the control means 13
Controls the volume switching means 11 to turn off both the transistors 20 and 21. Here, when the area switching button 14 is on the indoor side and the step S27 is not performed, the transistor 24 is turned off.
A loud volume ring tone is output from the speaker 12. On the other hand, if the area switching button 14 is on the "outdoor" side and the process goes through step S27, the transistor 24
Is switched on, the area switch button 14 is "indoor"
Compared with the case where it is on the side, a ring tone with a low volume level is output at a medium volume.

Then, in step S31, the control means 1
Reference numeral 3 determines whether or not a call start operation is performed, and when it is determined that the operation is performed, the code decoding means 5 is controlled to enter the call state. On the other hand, when it is determined that the call start operation has not been performed, the process returns to step S24.

As described above, according to the second embodiment, by switching the area switching button 14 to the "outdoor" side outdoors, the volume of the area switching button 14 becomes larger than that when the area switching button 14 is "indoors". The incoming call volume set by the switch button 15 can be lowered by one level. Therefore, according to the second embodiment, it is possible to prevent the ringing tone having a large volume from being played outdoors, and there is no fear of disturbing others with a loud sound that is offensive to the ears. On the other hand, at home, the ringtone can be set to a high volume, so that the incoming call can be surely notified even if the user is away from the mobile device.

In the first and second embodiments described above, whether the system is used in the public system or in the private system is switched by manually switching the area switching button 14. The control signal sent from time to time may be received by the control means 13 so that the control means 13 can identify whether the control signal is a signal from a public system or a signal from a private system. In this case, when the control means identifies the incoming call control signal as the incoming call control signal from the public system, the volume switching means is controlled to lower the incoming call volume. Even if you do not operate, the ring volume can be automatically lowered outdoors.

[0040]

As is clear from the above, the digital cordless telephone of the present invention outputs a signal to the control means to cause the control means to control the volume switching means,
The volume of the ringing tone output by the ringing tone generating means when there is an incoming call from the base station of the public system outside the home Area-specific volume control means for reducing the volume of the ringing sound output by the sound generation means.

Therefore, according to the present invention, the volume control means for each area outputs a signal to the control means, whereby the control means controls the volume switching means, and the base station of the public system outside the home. The volume of the ringing tone output by the ringing tone generation means when there is an incoming call from the ringing tone output by the ringing tone generation means when there is an incoming call from the base station of the private system at home. Make it lower than the volume.

Therefore, according to the present invention, since the ringing tone is small outside the home, no trouble is caused to others, and the ringing tone is large inside the home, the user is away from the telephone. Can reliably notify the incoming call.

[Brief description of drawings]

FIG. 1 shows a first digital cordless telephone of the present invention,
It is a block diagram which shows the structure of the mobile device of a 2nd Example.

FIG. 2 is a circuit diagram of ringing tone volume switching means of the mobile device of the digital cordless telephone according to the first embodiment of the present invention.

FIG. 3 is a circuit diagram of ringing tone volume switching means of a mobile device of a digital cordless telephone according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the mobile device of the digital cordless telephone according to the first embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the mobile device of the digital cordless telephone according to the second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mobile device, 2 ... Antenna, 3 ... Receiving means, 4 ... Transmitting means, 5 ... Code decoding means, 6, 7, 10 ... Amplifying means,
8, 12 ... Speaker, 9 ... Microphone, 11 ... Volume switching means, 13 ... Control means, 14 ... Area switching button, 15 ... Volume switching button, 16, 17, 22 ... Condenser, 18, 19,
23 ... Resistors, 20, 21, 24 ... Transistors.

Claims (1)

[Claims] 1. A receiving means for receiving a received signal notifying an incoming call, a decoding means for decoding the received signal received by the receiving means, a ringing tone generating means for outputting a ringing tone of an audible frequency, and the decoding described above. A control means for receiving the decoded control signal from the converting means and activating the ringing tone generating means, and a control signal from the controlling means for switching the volume of the ringing tone output by the ringing tone generating means. By outputting a signal to the volume switching means and the control means, the control means is caused to control the volume switching means, and when the incoming call is received from the base station of the public system outside the house, the ringing tone generating means is activated. Area-specific volume control means for reducing the volume of the ringing tone to be output to be smaller than the volume of the ringing tone output by the ringing tone generating means when there is an incoming call from the base station of the self-employed system at home. Digital cordless telephone, characterized in that it includes.