JP2004096385A - Cordless telephone set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cordless telephone set capable of preventing that both of a master unit and a slave unit participate in telephone conversation when the telephone set is in a simple relay mode. <P>SOLUTION: The cordless telephone set 1 is constituted of the master unit 2 and the slave unit 3. The master unit 2 comprises a radio communication section 5 for transmitting/receiving an audio signal etc. via a circuit and carrying out bidirectional radio communication with the handset 3, an operation section 11 for carrying out various operations, a display section 12 for carrying out various display, a three-party call section 14 for carrying out a three-party call, and a call monitoring section 15 for monitoring the three-party call. The slave unit 3 carries out bidirectional radio communication with the master unit 2. In case the telephone set is in the simple relay mode wherein the three-party call is automatically enabled upon call incoming from the circuit, when the slave unit 3 participates in the conversation during the conversation between the circuit side and the master unit 2, the call monitoring section 15 starts monitoring of the three-party call. If the three-party call is still being effected after a predetermined period has been elapsed, the master unit 2 gives warning to both of itself and the slave unit 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cordless telephone device having a three-way call function.
[0002]
[Prior art]
In the conventional cordless telephone device, in the simple handover mode using the three-party calling function of the base unit, when an incoming call is received from a line, the base unit answers the telephone, then takes over the telephone from the base unit to the child unit, If the parent device hangs up after starting the telephone call, the telephone can be transferred from the parent device to the child device. Of course, even if the simple handover mode is not set, after the master unit answers the phone (during a call), press the slave unit button of the master unit, call the slave unit, and let the slave unit enter the call ( If the parent device hangs up the telephone (during a call of the child device), the telephone can be taken over from the parent device to the child device.
[0003]
However, if the cordless phone user is familiar with dial-in black phones, the process of having to press various buttons to take the phone from the base unit to the handset is a very cumbersome method. It is usual to feel. Therefore, a method similar to the method of handing over a telephone used for a dial-type black telephone, that is, calling from a base unit (for example, calling Oy ## # telephone) and setting a slave unit side A method of handing over the telephone from the master unit to the slave unit by calling is realized by a method of handing over the telephone from the master unit to the slave unit using the above-described simple transfer mode.
[0004]
[Problems to be solved by the invention]
However, in the configuration of the conventional cordless telephone device as described above, in the simple handover mode using the three-party call function of the base unit, when an incoming call is received from the line, the base unit answers the telephone and then changes from the base unit to the slave unit. Even if the handset is taken over, the three-party call state will continue unless the base unit hangs up, so the base unit side will lose the call contents of the child unit and the user of the base unit will intentionally There was a problem that the contents of the call could be eavesdropped.
[0005]
In addition, as long as the simple handover mode is set, the three-party call function is automatically activated when an incoming call is received from the line, so that the user of the base unit and the line (calling side) are busy. However, the child device does not know that the parent device is talking. For this reason, a situation may occur in which the slave unit makes a call to the line even though the master unit and the line side are busy. There is also a problem that, when the slave unit makes a call (although the call is not connected), noise is mixed in the call between the master unit and the line side, and the call of the master unit is hindered.
[0006]
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a cordless telephone device capable of preventing a three-party call state in which a master unit and a slave unit both participate in a call in a simple handover mode.
[0007]
[Means for Solving the Problems]
In order to solve this problem, the cordless telephone device of the present invention transmits and receives a voice signal and the like through a line, and performs a wireless communication unit for performing bidirectional wireless communication with a slave unit, and an operation for performing various operations. And a display unit for performing various displays, a base unit including a three-way call unit for performing a three-way call, a call monitoring unit for monitoring the three-way call, and a two-way wireless communication with the base unit. A cordless telephone device comprising: a slave unit performing communication; and in a simple handover mode in which a three-party call can be automatically performed when an incoming call is received from a line, the slave unit performs a call between the line side and the master unit. When a user enters a call, the call monitoring unit starts monitoring the three-way call, and if the three-way call is still in progress after a lapse of a predetermined time, the master unit alerts both itself and the slave unit. .
[0008]
According to the present invention, it is possible to provide a cordless telephone device that can prevent a three-party call state in which the parent device and the child device both participate in a call in the simple handover mode.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention transmits and receives an audio signal and the like through a line, and performs a wireless communication unit for performing bidirectional wireless communication with a slave unit, an operation unit for performing various operations, A display unit for performing various displays, a three-way call unit for performing a three-way call, and a base unit including a call monitoring unit for monitoring the three-way call,
A cordless telephone device configured with a slave unit that performs two-way wireless communication with the master unit,
In the simple handover mode, in which three-way calling is automatically possible when an incoming call is received from the line, if the slave unit enters a call during a call between the line side and the base unit, the call monitoring unit starts monitoring the three-way call. If the three-party call is still in progress even after the lapse of the predetermined time, the master unit is configured to cause both the self unit and the slave unit to issue a warning,
After handing over the call from the parent unit to the child unit, the transition from the three-party call state to the two-party call state in which the parent unit has left is promoted, so that the parent unit can be prevented from eavesdropping on the child unit's call. It has the action of:
[0010]
According to a second aspect of the present invention, in the invention according to the first aspect, the three-way call is terminated after the base unit exits the call during the call of the slave unit, but the base unit joins the call again for a predetermined time. If a three-way call is still in progress after the elapse, the master unit is configured to warn both itself and the slave unit,
After taking over the phone call from the parent unit to the child unit, when the parent unit joins the call again and enters the three-party call state, it prompts the transition to the original two-party call state, so the parent unit eavesdrops on the call of the child unit Has the effect of being able to prevent the user from doing so.
[0011]
The invention according to claim 3 of the present invention is the invention according to any one of claims 1 and 2, wherein the slave unit joins the call during a call between the line side and the master unit, and after a predetermined time elapses. During a two-way call, the master unit is configured to alert both itself and the slave unit,
Since the slave unit, which does not know that the line and the base unit are talking on the phone, can be notified before the call that the base unit is talking, the noise from the slave unit during the call of the master unit can be made. Can be prevented from mixing.
[0012]
Hereinafter, embodiments of the present invention will be described.
[0013]
(Embodiment 1)
The summary of one embodiment of the present invention is that, in the simple handover mode, when a three-way call state occurs between the line side, the base unit side, and the handset side, the call monitoring unit of the base unit performs a three-way call. The monitoring is started, and the master unit and the slave unit are warned to shift to the two-party call (to stop the three-party call) if the three-party call is still in progress after the lapse of a predetermined time. When the telephone is handed over from the mobile device to the mobile device, the device is devised so as to prevent the master device from eavesdropping on the call of the mobile device without hanging up the telephone.
[0014]
Another feature is that it is possible to prevent the slave unit from inadvertently joining the call during a call between the line side and the master unit, thereby preventing a three-party call state from being neglected.
[0015]
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
[0016]
FIG. 1 is a block diagram showing a configuration of a base unit of a cordless telephone device according to one embodiment of the present invention, and FIG. 2 shows a procedure of shifting to a three-party call of the cordless telephone device according to one embodiment of the present invention. It is a schematic diagram. FIG. 3 to FIG. 5 are schematic diagrams showing a procedure for easily taking over a telephone of a cordless telephone device according to an embodiment of the present invention. FIG. 6 is a flowchart showing the operation of the base unit of the cordless telephone device according to one embodiment of the present invention.
[0017]
In FIG. 1, a cordless telephone device 1 includes a base unit 2 connected to a line, and a slave unit 3 having a limited mobile communication function using the base unit 2 as a base station. Bidirectional wireless communication is possible with the slave unit 3 within a certain distance (100 to 150 m). In the following description, it is assumed that the number of the child devices 3 registered in the parent device 2 is one, but a plurality of child devices 3 are registered in the parent device 2 as necessary. It is possible.
[0018]
Base unit 2 transmits and receives voice signals to and from the other party of the telephone under the control of control unit 4. The base unit 2 can bidirectionally wirelessly communicate with the sub unit 3 through the radio communication unit 5 including the radio transmission unit and the radio reception unit. The control unit 4 includes a CPU, a RAM, a ROM, and the like, and is responsible for overall control of the master unit 2. Since the base unit 2 has the handset 6 connected by a cord, when the handset 6 is picked up and off-hook, a radio call (extension call) with the handset 3 and a call with the outside through a line (external call) are made. It is possible. In addition, since base unit 2 is also provided with speakerphone communication unit 7, when the switch of speakerphone communication unit 7 is pressed, it is possible to make a telephone call without hands. Since the base unit 2 is provided with an answering machine 8, if the bell does not go off-hook on both the base unit 2 and the handset 3 even if a bell comes in from the line, the answering machine unit 8 is activated. You can record incoming messages. At this time, if the bell does not go off-hook even if the bell rings a predetermined number of times (for example, six times), the control unit 4 switches the changeover switch 9 from the call circuit unit 10 to the answering machine unit 8 side. When making a call, the dial is operated by operating the operation unit 11. At this time, the dialed telephone number is displayed on the display unit 12 constituted by an LCD or the like so that the dial number can be confirmed. Alternatively, if the caller is registered in the electronic telephone directory 13, the name of the caller is searched in the electronic telephone directory 13, the target telephone number or name is displayed on the display unit 12, and then the off-hook operation is performed. Then you can make a phone call.
[0019]
Since the base unit 2 is also provided with a three-way communication unit 14 in the communication circuit unit 10, the user can perform a three-way call between the line side, the base unit 2 side, and the handset 3 side as necessary. It can be performed. At the time of setting the two-party call mode as shown in FIG. 2, if it is desired that the slave unit 3 enter the three-party call while the line side and the master unit 2 are talking, the slave unit button of the operation unit 11 of the master unit 2 Is pressed to automatically call the handset 3 (the call is automatically put on hold for the line side), and informs that the three-way call will be made when the handset 3 answers the telephone. Then, when the hold button of the operation unit 11 of the base unit 2 is pressed (the hold on the line side is released), a three-party call can be made. If it is desired that the base unit 2 enter a three-party call while the line side and the handset 3 are in a call, the handset 3 can be called from the base unit 2 and the same operation can be performed.
[0020]
Since base unit 2 is normally set to the two-way call mode, three-way call cannot be made unless operating unit 11 is changed to the three-way call mode. However, if the setting of the base unit 2 is set to the three-way call mode, when a call is received from the line, the three-way call can be performed from the beginning without operating the operation unit 11. This is called a simple transfer mode. As shown in FIG. 3, if the simple handover mode using the three-way calling function of the three-way calling unit 14 provided in the base unit 2 is set, a call received from the line will be Can be easily taken over from the master unit 2 to the slave unit 3 without depressing various buttons of the operation unit 11.
[0021]
In FIG. 3, although the telephone received from the line was picked up by the base unit 2, it was decided to take over the telephone from the base unit 2 to the child unit 3 because it was a call to the family. At this time, the handset 3 is called from the base unit 2 to the handset 3 side (for example, a call saying "Oh ## # telephone"), and the handset 3 is called for a three-way call. If a three-way call between the line side, the base unit 2 and the handset 3 is established, the base unit 2 comes out of the three-way call (put off the receiver 6 or turn off the speakerphone call unit 7 to stop the call). ), The telephone is transferred from the base unit 2 to the slave unit 3.
[0022]
However, if the master unit 2 does not drop out of the three-way call, the call contents of the slave unit 3 will be lost to the master unit 2. That is, it is possible to intentionally eavesdrop on the call of the slave unit 3 from the master unit 2 side. As shown in FIG. 1, the base unit 2 is provided with a call monitoring unit 15 for monitoring whether or not the base unit 2 has definitely dropped out of the three-party call. The call monitoring unit 15 automatically operates in the simple handover mode, and monitors whether the current call is a two-party call or a three-party call. The fact is transmitted to the control unit 4. The elapse of the predetermined time is measured by a timer, but the predetermined time can be set to zero as necessary.
[0023]
FIG. 4 is a continuation of FIG. 3, but as shown in FIG. 4, after calling the slave unit 3 from the master unit 2 to the slave unit 3 and calling the slave unit 3 into a three-party call, the call monitoring of the master unit 2 is performed. The unit 15 operates to monitor the three-way call. If the three-way call is still in progress after the elapse of the predetermined time (for example, 2 seconds), the call monitoring unit 15 notifies the control unit 4 that the three-way call is in progress. Then, the control unit 4 of the base unit 2 outputs a voice to the effect that the three-party call is stopped from the receiver 6 of the master unit 2 because the three-party call is in progress. For example, the voice is output as "The parent device and the child device are both in a call. Please cut either one." The control unit 4 of the base unit 2 performs the same operation with respect to the slave unit 3, and outputs a voice to stop the three-party call from the communication unit of the slave unit 3 because the three-party call is being performed from the slave unit 3. Let it. In this way, if the three-way call is still in progress even after the lapse of the predetermined time, base unit 2 causes both self and slave unit 3 to issue a warning, and urges the three-way call to be stopped. When the main unit 2 exits from the three-way call due to the warning, a two-way call between the line side and the handset 3 is performed, and the handover from the base unit 2 to the handset 3 is completed.
[0024]
However, as shown in FIG. 5, when the master unit 2 joins the call of the slave unit 2 again in an attempt to eavesdrop on the call of the slave unit 2, this becomes a three-party call. Monitor calls. If the three-way call is still in progress after the elapse of the predetermined time, the call monitoring unit 15 informs the control unit 4 that the three-way call is in progress. Give a three-way call alert and urge you to stop the three-way call. That is, if the parent device 2 and the child device 3 are both in a call and the three-party call continues for a predetermined time, both the parent device 2 and the child device 3 are warned that they are in a three-party call. . As described above, if the monitoring of the three-party call is continued, it becomes impossible for the master unit 2 to eavesdrop on the call of the slave unit 3. Therefore, unlike the conventional example, even if the telephone is inherited from the master unit 2 to the slave unit 3. The secret of the communication of the slave unit 3 is protected.
[0025]
The operation of the master unit 2 in the simple transfer mode will be described with reference to the flowchart of FIG.
[0026]
In step 1, when a call is received from the line and the telephone is picked up by the base unit 2, the line side and the base unit 2 are in a two-way call. The user of the base unit 2 takes over the telephone call to the handset 3 and urges the user of the handset 3 to participate in the call.
[0027]
In step 2, it is determined whether or not the handset 3 has joined the call and shifted to a three-party call. If it is a three-party call, the process proceeds to step 3 and the call monitoring unit 15 is activated. Stay at 2. In step 4, the call monitoring unit 15 monitors whether a predetermined time has elapsed since the three-party call was started. The process stays at step 4 until the predetermined time elapses, and proceeds to step 5 when the predetermined time elapses.
[0028]
In step 5, it is determined whether or not the three-way call has been completed. If the three-way call is in progress, the process proceeds to step 6, and the process returns to step 2 after causing the base unit 2 and the handset 3 to perform a three-way call warning. . When the three-way call is completed, the process returns to step 2.
[0029]
According to the flowchart shown in FIG. 6, the following problem can be solved. As long as the simple handover mode is set, the three-party call function is automatically activated when a call is received from the line, so even if the user of the base unit 2 and the line (calling side) are talking. The slave 3 does not know that the master 2 is busy. Therefore, although the base unit 2 and the line side are in a call, the handset 3 makes a call to the line, and noise is mixed in the call between the base unit 2 and the line side. In some cases, the call of the machine 2 was interrupted.
[0030]
However, since it is determined in step 2 of FIG. 6 whether or not a three-party call is made, if the handset 3 joins the call between the base unit 2 and the line side (the base unit 2 and the line side are in a call. Nevertheless, if handset 3 inadvertently presses the outside line button to interrupt the call of base unit 2), base unit 2 automatically proceeds from step 1 to step 2, and FIG. The routine of the flowchart shown in FIG. As a result, when the handset 3 interrupts the call of the base unit 2, both the base unit 2 and the handset 3 are warned of the three-party call in step 6. You can realize that there is something and stop talking.
[0031]
As described above, in the present invention, if the parent device and the child device are participating in the three-party call, since either the parent device or the child device is caused to exit from the three-party call, It is possible to prevent an eavesdropping of the call of the slave unit from the master side when the telephone is taken over from the master unit to the slave unit.
[0032]
【The invention's effect】
As described above, according to the cordless telephone device of the present invention, a wireless communication unit for transmitting and receiving a voice signal and the like through a line, and performing bidirectional wireless communication with a slave unit, and an operation unit for performing various operations A display unit for performing various displays, a three-way call unit for performing a three-way call, and a base unit including a call monitoring unit for monitoring the three-way call,
A cordless telephone device configured with a slave unit that performs two-way wireless communication with the master unit,
In the simple handover mode, in which three-way calling is automatically possible when an incoming call is received from the line, if the slave unit enters a call during a call between the line side and the base unit, the call monitoring unit starts monitoring the three-way call. If the three-way call is still in progress even after the lapse of the predetermined time, the master unit causes both itself and the slave unit to issue a warning.
[0033]
This has the effect of keeping the secret of communication of the child device when the telephone is taken over from the parent device to the child device, and prevents the child device from inadvertently interrupting the call during the telephone call of the parent device. There is also an effect.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a base unit of a cordless telephone device according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing a procedure for shifting to a three-party call of the cordless telephone device according to an embodiment of the present invention. FIG. 3 is a schematic diagram showing a procedure of a simple telephone connection of a cordless telephone device according to an embodiment of the present invention. FIG. 4 is a schematic diagram of a telephone simple connection of a cordless telephone device according to an embodiment of the present invention. FIG. 5 is a schematic diagram showing a procedure. FIG. 5 is a schematic diagram showing a procedure for easily taking over a telephone of a cordless telephone device according to an embodiment of the present invention. FIG. 6 is a base unit of a cordless telephone device according to an embodiment of the present invention. Flow chart showing the operation of [Description of reference numerals]
DESCRIPTION OF SYMBOLS 1 Cordless telephone apparatus 2 Base unit 3 Remote unit 4 Control unit 5 Wireless communication unit 6 Handset 7 Speakerphone call unit 8 Answering machine unit 9 Changeover switch 10 Communication circuit unit 11 Operation unit 12 Display unit 13 Electronic telephone directory 14 Three-way call unit 15 Call monitoring section

Claims (3)

A wireless communication unit for transmitting and receiving voice signals and the like through a line, and performing bidirectional wireless communication with the slave unit, an operation unit for performing various operations, a display unit for performing various displays; A base unit including a three-way calling unit for making a call, and a call monitoring unit for monitoring the three-way call;
A cordless telephone device configured with a slave unit that performs two-way wireless communication with the master unit,
In the simple handover mode, in which three-way calling is automatically possible when an incoming call is received from the line, if the slave unit enters a call during a call between the line side and the base unit, the call monitoring unit starts monitoring the three-way call. A cordless telephone device characterized in that if a three-party call is being made after a predetermined time has elapsed, the master unit causes both itself and the slave unit to issue a warning. If the parent device exits the call and the three-party call ends during the call of the child device, but the parent device joins the call again and the three-party call is still in progress after the elapse of a predetermined time, the parent device can communicate with both itself and the child device. 2. The cordless telephone device according to claim 1, wherein a warning is issued. 2. The master unit causes both itself and the slave unit to issue a warning if the slave unit joins the call during a call between the line side and the master unit and a three-way call is performed after a predetermined time has elapsed. 3. The cordless telephone device according to claim 1, wherein:

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