JP3417474B2 - 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 an automatic response in a hands-free cordless telephone with a speakerphone having a speaker and a microphone.

[0002]

2. Description of the Related Art A conventional technique is disclosed, for example, in JP-A-62-2.
As described in Japanese Patent No. 658441, in an extension telephone system in which a general extension telephone and an extension telephone with a speaker are connected, by turning on a microphone of the extension telephone with a speaker in advance, the extension telephone with the speaker In some cases, when a voice call is made to an extension telephone with an extension, the called party can answer hands-free without using the handset of the extension telephone with a speaker.

Further, as disclosed in Japanese Patent Laid-Open No. 62-166639, in a time-division multiplex digital private branch exchange, an extension call circuit equipped with a speaker calling device is provided with call end detection means so that the called party Even if the caller terminates the call without answering, the line between the calling telephone and the speaker calling device is automatically cut off to restore the call line of the speaker calling device. Some callers did not need to restore the call line.

Further, as disclosed in Japanese Patent Laid-Open No. 10-215308, in a telephone with a hands-free automatic response function, the type of incoming call of an external line or extension line is identified by identifying the intermittent period of the incoming call signal. In some cases, the communication line is captured only when the incoming call signal has a specific intermittent period to enable an automatic response by a hands-free call.

[0005]

However, in the above-mentioned conventional extension telephone system, a hands-free extension call can be made without using a handset of an extension telephone with a speaker.
Although the called party was able to answer the calling party, the called party did not make a hands-free extension call with another called party in response to an incoming call from an outside caller. Further, in the above-mentioned conventional telephone with a hands-free automatic answering function, an automatic answering by a hands-free call is possible for an incoming call from a specific telephone set for automatic answering by a hands-free call in advance. However, in the case of an incoming call from a telephone for which an automatic answering by hands-free call is not set, it was not possible to answer without picking up the telephone.

Therefore, even when there is an incoming call to the outside line, for example, when the user is busy and cannot release his hand, it is not possible to pick up the call unless there is a person nearby. In addition, when an incoming call to an outside line is received, there is an inconvenience that a telephone call is taken at the same time as a person in another place, or a person in another place picks up the telephone first.

The present invention has been made in view of the above points, and enables a hands-free extension speakerphone call between a base unit and a handset of a cordless telephone in response to an external call. To communicate with each other between the extension telephones of the base unit and the handset, ask the person near the base unit or the handset to pick up the call, or to take the call by itself. It seeks to be able to communicate to people near the plane.

[0008]

In order to achieve the above object, the present invention has a speaker and a microphone,
In a cordless telephone with a hands-free speakerphone having at least one slave, means for notifying an external call to a master and a slave of the cordless telephone by detecting an external call signal, A means for enabling a hands-free extension speakerphone call between a base unit and a handset of a cordless telephone, and an extension speakerphone between the base unit and the handset of the cordless telephone by capturing an outside line. A means for canceling the call, and a means for enabling an outside line call between the outside line and the master unit or the slave unit of the cordless telephone that has captured the outside line.

By these means, it becomes possible to make a hands-free extension speakerphone call between the master unit and the slave unit of the cordless telephone when an incoming call to an outside line is received, without operating the telephone. It is possible to communicate between the master unit and the slave unit of the telephone, and ask a person near the master unit or the slave unit in another place to pick up the phone or call the person himself / herself. You can tell them to take.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings as appropriate. FIG. 1 is a block diagram showing a configuration of a cordless telephone according to an embodiment of the present invention, and FIG. 2 is a flowchart showing an operation of the cordless telephone according to the embodiment of the present invention.

First, a description will be given based on the block diagram showing the configuration of the cordless telephone according to the embodiment of the present invention in FIG. The upper diagram of FIG. 1 is a block diagram showing the configuration of the master unit of the cordless telephone, and the lower diagram of FIG. 1 is a block diagram showing the configuration of the slave unit of the cordless telephone.

The cordless telephone is composed of one master unit and at least one slave unit, an external line (public line) is connected to the master unit, and an extension call between the master unit and the slave unit. The external call of the child device via the parent device is performed by wireless communication.

In the base unit of the cordless telephone, 1 is a control circuit composed of a microcomputer for controlling the entire system of the cordless telephone and controlling wireless communication with the handset, and 2 is a dial transmitter and various telephones. A key input unit for operating settings and the like, a display unit for displaying various setting information of the telephone, 3 is a ring detection circuit for detecting an incoming call to an outside line, and 4 is an outside line for making an outside line call. 6 is a handset for transmitting and receiving telephone calls, 8 is a speaker and a microphone for hands-free speakerphone conversation,
Reference numeral 7 is a speakerphone call circuit that controls the speaker / microphone 8, 5 is a speech network circuit that controls the handset 6 and the speakerphone call circuit 7, and 9 is an extension call and a base unit with a slave unit. A reference numeral 10 is an antenna, and 11 is a power supply unit for performing an external line call of the child device via the wireless communication. The outside line (public line) is connected to the ring detection circuit 3 and the hook circuit.

In a cordless telephone handset,
Reference numeral 21 is a control circuit composed of a microcomputer that controls the system of the slave unit and control of wireless communication with the master unit, and 22 performs operations such as dial transmission, capturing an outside line, and various settings of the telephone. A key input section and a display section for displaying various setting information of the telephone, 23 is a speaker and a microphone for making a hands-free speakerphone call, and 24 is the speaker / microphone 23.
Is a speakerphone communication circuit for controlling the wireless communication, 25 is a transmitting / receiving unit for performing an extension call with the base unit and an external call via the base unit by wireless communication, 26 is an antenna, and 27 is a power supply unit 27. is there.

When the cordless telephone has an incoming call to the outside line, the ring detection circuit 3 of the base unit of the cordless telephone detects an outside call signal, and the ring bell of the base unit rings to notify the outside call. . When an incoming call signal is detected by the ring detection circuit 3 of the master unit, the transceiver circuit 9 is controlled by the control circuit 1 of the master unit so that the antenna 10 of the master unit can notify the external call incoming radio wave. Is sent to a cordless telephone handset. Antenna 10 of the base unit
An electric wave for notifying an incoming call from an external line is received by an antenna 26 of a cordless telephone handset and is sent to a transceiver 25 of the handset. The control circuit 2 which has received the signal notifying the incoming call from the transmitter / receiver 21 of the slave unit.
1, the ring bell of the cordless handset rings and the cordless telephone handset also is notified of an incoming call to the outside line.

Then, the master unit of the cordless telephone is controlled by the control circuit 1 which receives the external call incoming signal detected by the ring detection circuit 3 of the master unit, and the speech network circuit 5 and the speakerphone communication circuit 7 of the master unit. Are controlled, the speaker / microphone 8 of the base unit is turned on, and the transmitter / receiver 9 and the antenna 10 of the base unit
An extension call circuit by wireless communication is formed, and a hands-free extension speakerphone call can be made with a child device.
Further, in the cordless telephone slave unit, the speakerphone communication circuit 24 is controlled by the slave unit control circuit 21 which receives a signal for notifying an external call incoming from the cordless telephone master unit, and the speaker / speaker of the cordless telephone The microphone 23 is turned on, and the transmitter / receiver 25 of the slave unit and the antenna 26 form an extension call circuit by wireless communication, and a hands-free extension speakerphone call can be performed with the master unit.

During the extension call by the extension speakerphone call between the base unit and the handset of the cordless telephone, the handset is picked up by the base unit side of the cordless telephone or the key input unit is operated to go on-hook (capture the outside line). When an operation is performed or an on-hook operation is performed by operating a key input unit on the cordless telephone handset side, a signal of the on-hook operation is detected by the control circuit 1 of the parent device, and the hook circuit of the parent device is detected. 4 is controlled to capture an outside line, and an outside line communication circuit is formed between the outside line and the master unit or the slave unit that has been on-hooked to enable an outside line communication. Then, when the outside line call is started, the extension line communication circuit of the extension speakerphone call between the base unit and the handset of the cordless telephone is cut off.

When the outside line is not captured and the outside line call is not started, the extension line communication circuit for the extension speakerphone call between the master unit and the slave unit of the cordless telephone is maintained. When the outside line call ends, the base unit and the handset unit of the cordless telephone are restored to the standby state for the outside call or the inside call.

Next, the operation of the cordless telephone according to the embodiment of the present invention shown in FIG. 2 will be described with reference to the flowchart. The diagram on the left side of FIG. 2 is a flowchart showing the operation of the parent device of the cordless telephone, and the diagram on the right side of FIG. 2 is a flowchart showing the operation of the child device of the cordless telephone.

First, the operation of the parent device will be described in association with the operation of the child device based on the flowchart showing the operation of the parent device of the cordless telephone according to the embodiment of the present invention on the left side of FIG.

When the cordless telephone receives an incoming call from an outside line, the master unit of the cordless telephone is first called and the process proceeds from step S1 to step S2. Go to S3,
The ring bell of the base unit rings and the base unit is notified of an incoming call to the outside line. Then, in step S4, an extension call circuit is formed between the base unit and the handset of the cordless telephone, and a hands-free extension speakerphone call with the handset is started.

Next, in step S5, it is judged whether or not the on-hook (outer line capture) operation has been performed on the master side of the cordless telephone, the on-hook operation has been performed on the slave side of the cordless telephone, or not. If neither the base unit of the cordless telephone nor the cordless handset is on-hook, the process returns to step S4 and the extension speakerphone call with the cordless telephone of the cordless telephone is continued.

When the main unit of the cordless telephone is on-hook in step S5, the process proceeds to step S6, the extension telephone line of the extension speakerphone conversation with the cordless telephone slave unit is cut off, and the extension speakerphone conversation is released. Then, an outside line call between the base unit of the cordless telephone and the outside line is started. When the outside call of the base unit of the cordless telephone is completed, the process proceeds to step S9 and returns to the main program (not shown) of the base unit that controls the entire cordless telephone.

If the cordless telephone handset is on-hook in step S5, the process proceeds to step S8, the extension telephone line of the extension speakerphone call with the cordless telephone handset is cut off, and the extension speakerphone call is made. Is canceled and the program returns to the main program of the master unit that controls the entire cordless telephone. Then, the external line call between the cordless phone slave unit and the external line is held until the external line call of the cordless phone slave is completed.

Next, the operation of the cordless handset will be described with reference to the flow chart showing the operation of the cordless telephone according to the embodiment of the present invention in the diagram on the right side of FIG. 2 in association with the operation of the cordless handset. .

When the cordless telephone receives an incoming call from an outside line, the process proceeds from step S11 to step S12, the cordless telephone master unit makes an incoming call link to the cordless telephone slave unit, and the process proceeds to step S13 to the ring bell of the cordless telephone. Sounds and the handset is also notified of an incoming call to the outside line. Then, in step S14, an extension call circuit is formed between the base unit and the handset of the cordless telephone, and a hands-free extension speakerphone call with the base unit is started.

Next, in step S15, it is determined whether the on-hook (outer line capture) operation has been performed on the master side of the cordless telephone, the on-hook operation has been performed on the slave side of the cordless telephone, or not. If neither the cordless telephone base unit nor the cordless telephone side is on-hook, the process returns to step S14 and the extension speakerphone call with the cordless telephone parent device is continued.

In step S15, when the cordless telephone handset is on-hook, the process proceeds to step S16, in which the extension telephone line of the extension speakerphone call with the base unit of the cordless telephone is cut off and the extension speakerphone call is released. Then, the outside call between the cordless telephone handset and the outside line is started. When the outside call of the cordless telephone is completed, the process proceeds to step S19 to return to the main program (not shown) of the cordless phone controlling the cordless telephone.

In step S15, when the cordless telephone is on-hook on the base unit side, step S18
Then, the call to the extension speakerphone of the cordless telephone from the cordless telephone is cut off, the extension speakerphone call is released, and the main program of the cordless telephone controlling the cordless telephone is returned to.

[0030]

As described above, according to the cordless telephone of the present invention, when the cordless telephone receives an incoming call from the outside line, the ringing of the base unit of the cordless telephone is detected by detecting the outside line incoming call signal. The bell and the ring bell of the cordless handset both ring, you can know the incoming call of the outside line by the base unit and the handset, and you can make a hands-free extension speakerphone call between the base unit of the cordless telephone and the handset. Therefore, it is possible to communicate with the cordless telephone between the parent device and the child device. This allows people who are near the base unit or cordless handsets of cordless phones to use hands-free extension speakerphone calls without having to take calls even when there are no people nearby when they are busy and cannot release their hands. Can ask someone to pick up the call, or tell them to pick up the call. Then, after communicating with the cordless telephone by using the hands-free extension speakerphone call, the outside line is captured by either the telephone of the parent or the child, You can make an outside line call.

In the cordless telephone according to the first aspect of the invention, in the cordless telephone with a speakerphone capable of hands-free, ringing bells of the cordless telephone base unit and the cordless handset are detected by detecting an incoming call signal. In addition to notifying an incoming call to an outside line, a hands-free extension speakerphone call can be made between a base unit and a handset of a cordless telephone. Therefore, it is possible to make an extension call between the master unit and the slave unit by a hands-free extension speakerphone call without operating the telephone.

A cordless telephone set according to a second aspect of the present invention is the cordless telephone set with a speakerphone set forth in the first aspect, during a hands-free extension speakerphone call between a base unit and a handset of the cordless telephone set. , When an external line call is started by either the base unit or the handset of the cordless telephone, the extension speakerphone call between the base unit and the handset is released, and the base unit or handset that captures the outside line I am able to make outside calls. Therefore, the extension speakerphone between the cordless phone master unit and the cordless handset does not have to be released, but simply by taking the handset and going on-hook, the cordless telephone master unit or cordless handset makes an external call. It can be performed.

A cordless telephone set according to a third aspect of the present invention is the cordless telephone set with a speakerphone set forth in the first aspect, wherein the cordless telephone set is a master unit of the cordless telephone set until an outside line call is initiated by the master unit or the slave unit of the cordless telephone set. The extension speakerphone call can be continued between the device and the child device. Therefore, the extension speakerphone call can be continued until the communication between the master unit and the slave unit is sufficiently communicated.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a cordless telephone according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the cordless telephone according to the embodiment of the present invention.

[Explanation of symbols]

1,21 Control circuit 2.22 Key input / display 3 Ring detection circuit 4 hook circuit 5 speaker network circuit 6 handsets 7, 24 speakerphone call circuit 8,23 Speaker / microphone 9, 25 Transmitter / receiver 10, 26 antenna 11, 27 Power supply

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04M 1/725 H04M 1/60 H04Q 7/38

Claims (3)

(57) [Claims] 1. A cordless telephone with a speakerphone, which has a speaker and a microphone, and has at least one slave, and which is capable of hands-free. By detecting an external incoming call signal, the master of the cordless telephone. A ringbell between the cordless phone and the cordless handset is signaled to notify an incoming call to the outside line, and an extension line communication circuit for extension speakerphone call is formed between the cordless handset parent device and the cordless handset to form a cordless telephone master device. After forming a hands-free extension call circuit between the cordless telephone and the cordless handset,
Is a cordless telephone with a speakerphone , in which an outside line communication circuit is formed by a cordless handset to enable outside line communication . 2. The cordless telephone with speakerphone according to claim 1, which is either the parent device or the child device of the cordless telephone during an extension speakerphone call between the parent device and the child device of the cordless telephone. When an external line is captured by an external line, the internal line communication circuit of the internal line speakerphone call is cut off, and an external line communication circuit is formed between the external line and the master unit or the slave unit that has captured the external line to make an external line communication. A cordless telephone with a speakerphone characterized in that 3. The cordless telephone with a speakerphone according to claim 1, wherein, during extension speakerphone communication between the parent device and the child device of the cordless telephone, either the parent device or the child device of the cordless telephone is used. Until the outside line is captured by, the extension call circuit of the extension speakerphone call is held so that the hands-free extension call can be continued between the base unit and the handset of the cordless telephone. Characteristic cordless phone with speakerphone.