JPH05130178A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To enhance the reliability of the calling by sending a call radio wave signal to a master set of the cordless telephone set and then a slave set of the cordless telephone set when a radio signal is sent to an interphone slave set from the cordless telephone set. CONSTITUTION:When a reply from a master set 6 of the cordless telephone set is not received by an interphone slave set 1 with respect to a call signal from the interphone slave set 1, the call signal is sent to a slave set 12 of the cordless telephone set succeedingly. After the call to the slave set 12 of the cordless telephone set is finished, the slave set 12 of the cordless telephone set relays the call signal to the master set 6 of the cordless telephone set newly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone system which can be connected to a telephone line and which can constitute a highly functional telephone system through a plurality of communication cordless handsets and intercom cordless handsets.

[0002]

2. Description of the Related Art Conventionally, a cordless telephone device of this type includes a cordless telephone device master unit (hereinafter referred to as a master unit), one or more cordless telephone device slave units (hereinafter referred to as slave units), and an intercom slave unit. The intercom slave unit and the master unit are connected by wire.

Therefore, when the call button of the intercom slave is pressed, the signal is transmitted to the master. Further, the intercom calling signal is transmitted to the child device via the parent device.

[0004]

However, in such a conventional cordless telephone device, since the connection between the base unit and the intercom handset is wired, wiring installation work is required, and the power supply of the base unit is cut off. Alternatively, when the battery is exhausted, the operation is stopped, and there is a problem that direct communication cannot be performed between the intercom slave unit and the slave unit.

The present invention is to solve such a conventional problem, and to provide an excellent cordless telephone device which does not require wiring installation work and can be smoothly called from an intercom handset. It is intended. Further, according to the present invention, even if all the communication channels are being used in the base unit, the base unit receives the intercom handset calling signal once via the empty channel of the handset and then the base unit. It is an object of the present invention to provide an excellent cordless telephone device that allows direct communication between intercom slave units by transmitting the multiplexed signal to a signal of a channel being communicated.

[0006]

In order to achieve the above object, the present invention is provided with an intercom handset having a wireless communication means as a communication means, and wirelessly communicates with a base unit or a handset. , And when the communication channels are all in use and cannot answer the call from the intercom handset, after the call is completed by sending the call signal to the cordless handset and receiving the response signal from the cordless handset, A cordless master unit that receives a call from an intercom slave unit from a cordless slave unit is provided.If all communication channels are in use and communication is not possible at the master unit, the empty channel of the slave unit communicating with the master unit is set. The call signal of the intercom signal is received once by the handset, and is multiplexed with the signal of the channel in communication with the handset and sent out. Than it is.

[0007]

Therefore, according to the present invention, since the communication means of the intercom slave unit is wirelessly communicated, wiring installation work is unnecessary, and when all communication channels are in use in the master unit and communication is not possible. When there is no communication due to a power failure, battery exhaustion, or failure, it has the effect of calling the child device directly. Further, according to the present invention, when the base unit cannot respond to the call from the intercom slave unit by the cordless slave unit, the cordless slave unit notifies the master unit that the intercom slave unit has called. The effect is that the calling operation can be performed with high reliability.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of the first embodiment of the present invention. In FIG. 1, reference numeral 1 is an intercom slave. Reference numeral 2 denotes an antenna of the intercom slave unit 1, which is connected to the wireless unit 3. Reference numeral 22 denotes a control unit which is built in the intercom slave unit 1 and receives a signal when the call button 25 is pressed and sends an intercom call signal as a radio wave via the radio unit 3 and the antenna 2.

Reference numeral 23 denotes various conceivable power supply units such as a primary battery or an AC power supply, a combination of a secondary battery and an AC power supply, or a combination of a secondary battery and a solar battery. This power supply unit 23 is a control unit 22. And power is supplied to the wireless unit 3.

Reference numeral 24 is a speaker of the intercom slave unit 1, 26 is a microphone of the intercom slave unit 1, and the interphone call is made through the microphone 26 and the speaker 24.

Reference numeral 6 is a base unit of the cordless telephone device (hereinafter, simply referred to as base unit), 7 is a control unit of the base unit 6, 8 is an antenna of the base unit 6, and 9 is a radio in the base unit 6. It is a department. The call signal from the intercom slave unit 1 is transmitted to the control unit 7 via the antenna 8 and the radio unit 9 of the master unit 6, and the control unit 7 calls the intercom slave unit 1 from the call signal. On the other hand, the response signal is transmitted as a radio wave through the radio unit 9 and the antenna 8. By receiving the response signal, the intercom slave 1 completes the calling operation, and subsequently information such as voice is wirelessly communicated.

Reference numeral 4 denotes a handset of the base unit 6 having a built-in microphone and speaker (both not shown) for communication, and 5 denotes a key operation unit of the base unit 6 for dialing, etc.
Is a power outlet of the base unit 6, 19 is connected to the power outlet 18, and the control unit 7, the wireless unit 9, the telephone circuit unit 20
Is a power supply unit that supplies electric power to. The telephone circuit unit 20 is connected to the handset 4 via the telephone line connection unit 21 of the base unit 6 and constitutes a telephone call circuit. The telephone line connection unit 21 is adapted to connect to an NTT telephone line.

Reference numeral 12 denotes a cordless telephone device slave unit (hereinafter,
This is simply referred to as a slave unit, 13 is an antenna of the slave unit 12, 14 is a wireless unit of the slave unit 12, 15 is a wireless unit 14, a key operation unit for dial input, a microphone 11, and a control for controlling the speaker 17. It is a department. Reference numeral 16 is a power supply unit that supplies operating power to the wireless unit 14 and the control unit 15. A primary battery, a secondary battery, or the like is used as the power supply unit 16.

The handset 12 has an antenna 13 and a radio section 14.
Wireless communication is performed with the base unit 6 and the intercom handset 1 via the.

It should be noted that the telephone call is performed by the microphone 11 and the speaker 1.
7 through. Then, the antennas 2, 8, 1
Although 3 has an external antenna configuration, it goes without saying that it may have a structure incorporated in the main body.

Next, the operation of the first embodiment having the above structure will be described with reference to the flowchart of FIG. In the first embodiment, when the call button 25 of the intercom slave 1 is pressed in step S31 of FIG.
The calling unit controls the wireless unit based on the control of the control unit 22, and the wireless unit 3 passes the antenna 2 to step S32.
Will be sent wirelessly. Since this call signal has a channel and data structure that enables communication with the master unit 6, the slave unit 12 cannot respond.

Next, in step S33, a response signal to the calling signal of the intercom slave unit 1 is sent from the master unit 6, and when the intercom slave unit 1 can receive the call signal, the calling operation is completed, and the process proceeds from step S33 to step S34. The process proceeds, and the intercom call can be made on the designated call channel.

Next, when the intercom call is completed in step S35, the standby state is entered in step S36.

In step S33, if the intercom handset 1 cannot receive the response signal from the base unit 6 within a certain time after the call signal is wirelessly transmitted from the intercom handset 1, the process proceeds to step S37. A call signal is newly sent from the intercom slave unit 1 to the slave unit 12 wirelessly on a channel for communication between the intercom slave unit 1 and the slave unit 12. In step S37, a response signal from the handset 12 to the call signal from the intercom handset 1 is output, and when the intercom handset 1 can receive this response signal, the process proceeds from step S38 to step S39 to perform the call operation. Is completed, the interphone call between the intercom slaves 1 and 12 can be performed on the designated communication channel. Next, when this predetermined intercom call is ended, the call is ended in step S40.

In the above step S33, as an example in which the intercom slave unit 1 cannot communicate with the master unit 6,
When the power is cut off due to a power outage or the wireless communication channel of the base unit 6 is not empty, it is possible that interference due to noise radio waves or the like occurs.

In step S38, if there is no response from the handset 12 to the intercom handset 1,
From the NO side of step S38, the process proceeds to step S41, in which the non-answer process is performed and the interphone call between the intercom handset 1 and the handset 12 is not performed.
A standby state is set in step S36.

Next, the operation of the second embodiment will be described with reference to FIG.
A description will be given according to the flowchart in FIG. In step S51, a call signal is wirelessly transmitted from the intercom slave unit 1 to the master unit 6, and in Step S52, when the communication channel between the intercom slave unit and the master unit 6 is not empty, or due to an interference wave or the like, a response signal is transmitted. The intercom slave unit 1 is not sent from the master unit 6, and the NO side of step S52 is followed by the step S
53, the intercom slave unit 1 wirelessly transmits a calling signal from the intercom slave unit 1, and the intercom slave unit 1 receives the response signal from the slave unit 12, and the intercom slave unit 1
When the call between the intercom handset 1 and the handset 12 is completed in step S54, the handset 6 is newly called from the handset 12 to view the interphone. The intercom slave 1 notifies the master 6 wirelessly that the slave 12 has called.

By doing so, it becomes possible to back up communication interference between the intercom slave unit 1 and the master unit 6, and high reliability can be obtained.

Further, as described above, when the call signal is transmitted from the intercom slave unit 1 to the master unit 6, if the communication channel of the master unit 6 is not empty, the intercom slave unit 1
If the handset 12 called by is communicating with the base unit 6, it becomes possible to multiplex the call signal of the intercom handset 1 on the channel in communication and wirelessly transmit from the handset 12 to the base unit 6. The call signal from the handset 1 is sent to the base unit
Can be transmitted to.

In step S52, when a call signal is wirelessly transmitted from the intercom slave unit 1 to the master unit 6, if there is a response signal from the master unit 6 to the intercom slave unit 1, the process proceeds from step S52 to step S55. In this step S55, the same process as the process in step S34 of FIG. 2 is performed, the call process between the intercom slave 1 and the master unit 6 is performed, and when the call process ends in step S56, the standby state of step S36 is performed. Return to.

[0026]

As is apparent from the above embodiment, the present invention enables wireless communication between the intercom slave unit and the master unit, between the slave units, and between the slave unit and the master unit. Since the wiring installation work is not required and the cost can be reduced, when communication cannot be performed because the communication channels are all in use in the parent device, power failure, battery exhaustion, failure, etc. Even when communication is not possible, the slave unit can be directly called, and there is an effect that smooth communication can be performed.

Furthermore, according to the present invention, in the base unit,
When communication is not possible because all communication channels are in use, the intercom calling signal of the handset is transmitted from the handset to the base unit via the empty channel of the handset that is in communication with the base unit. Therefore, the calling operation can be performed with high reliability.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a cordless telephone device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a flow of operations in the first embodiment of the same device.

FIG. 3 is a flowchart showing a flow of operations of the second embodiment of the same device.

[Explanation of symbols]

 1 intercom handset 2 antenna 3 radio part 4 handset 5 key operation part 6 master unit of cordless telephone device 7 control part 8 antenna 9 radio part 10 key operating part 11 microphone 12 cordless phone device slave unit 13 antenna 14 radio part 15 control Part 16 Power supply part 17 Speaker 19 Power supply part 20 Telephone circuit part 21 Telephone line connection part 22 Control part 23 Power supply part 24 Speaker 25 Call button 26 Microphone

Claims (2)

[Claims] 1. An intercom slave unit and a cordless telephone device master unit, a cordless telephone unit master unit and a cordless telephone unit slave unit, and an intercom slave unit and a cordless telephone unit slave unit are wirelessly communicated. Communication is performed, and when there is no response signal from the master unit of the cordless telephone device when the call signal is transmitted from the intercom slave unit to the master unit of the cordless telephone device, the cordless telephone continues from the intercom slave unit. A cordless telephone device characterized in that a call signal is wirelessly transmitted to a child device of the device. 2. Communication between the intercom slave unit and the cordless telephone device master unit, between the cordless telephone device master unit and the cordless telephone device slave unit, and between the intercom slave unit and the cordless telephone device slave unit is performed wirelessly. Communication is performed, and when there is no response signal from the master unit of the cordless telephone device when the call signal is transmitted from the intercom slave unit to the master unit of the cordless telephone device, the cordless telephone continues from the intercom slave unit. The intercom slave receives the response signal from the slave of the cordless telephone device by wirelessly transmitting a call signal to the slave of the device, and the intercom slave responds to the slave of the cordless telephone. After the completion, if the cordless telephone device's slave unit is connected to the cordless telephone device's master unit as an intercom slave unit. A cordless telephone device characterized by notifying that a call has been made by the wireless communication.