JPH05244081A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To improve availability by employing such constitution that an alarm tone can be sounded from a certain slave set at preset time by setting the number of. a slave set from which the alarm tone is desired to sound and a time to sound the alarm tone by the user of a master set. CONSTITUTION:The user of the master set 1, when desiring to issue the alarm of a specific slave set 2, inputs and sets the number of the slave set 2 and the time desired to sound the alarm by an input part 3. Input information is stored in a RAM 4. In such a state, a master set control part 8, when confirming the arrival of the preset time, retrieves the RAM 4, and reads out the data of the number of the slave set from which it is desired to sound the alarm tone, and reads out an ID code in accordance with the number from an IDROM 5, and generates a transmission signal. The transmission signal is transmitted to the slave set 2, and is supplied to a slave set control part 22. The slave set control part 22 reads out the start signal of the alarm tone from a ROM 20 for control signal when coincidence between the ID code included in a reception signal and its own ID code is obtained, and sounds the alarm tone from an alarm tone generating part 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone which can be called by emitting an alarm sound from a specific handset at an arbitrary time.

[0002]

2. Description of the Related Art In a cordless telephone having a master unit connected to a telephone line and a plurality of slave units connected to the master unit by a wireless line, an arbitrary slave unit or all slave units are called. Those having functions are generally used.

This type of cordless telephone is provided with a call button for calling the handset on the side of the base unit, and a control unit for controlling the entire base unit receives an operation signal from the call button and switches to an extension call. An alarm sound start signal is transmitted to the slave unit side via a transmission / reception circuit.

In addition, each slave unit has a built-in alarm sound generator that emits an alarm sound, and the control unit for controlling the entire slave unit receives the alarm sound start signal and sends it to the alarm sound generator. It is configured to send an operation signal and operate for a certain period of time.

When the cordless telephone is used to call the slave unit, when the user of the master unit operates the call button, the control unit which receives an operation signal from the call button sends an alarm sound start signal to the slave unit. Send out. Since the control unit of each slave operates the alarm sound generator based on this alarm sound start signal, the alarm sound is emitted for a certain period of time and the user on the slave side can be called.

[0006]

However, the above-mentioned conventional cordless telephone has a problem that the user has to go to the place where the base unit is placed and calls the call button when calling the handset unit. was there.

In addition, when calling a child device, there is a problem that it is necessary to switch to an extension call state in order to simply emit only the ringing sound.

The present invention has been made in view of the above circumstances, and an object thereof is a cordless telephone capable of automatically calling an arbitrary slave unit at a set time without going to the place where the master unit is placed. To provide.

[0009]

In order to solve the above problems, the cordless device of the present invention comprises a master unit connected to a telephone line and a plurality of slave units connected to the master unit by a wireless line. The telephone sets the input unit for inputting the number of the slave unit and the time at which an alarm sound is emitted from any slave unit to the master unit, and the slave unit number and the set time input by this input unit. When the set time stored in the input information storage means, the identification number storage means for storing the identification number of the parent machine and the identification number for identifying each child machine, and the set time stored in the input information storage means , A control unit for performing control for reading out the identification number of the slave unit and the identification number of the master unit corresponding to the set time from the identification number storage unit and transmitting the same to the slave unit side together with the start signal of the alarm sound,
An identification number storage unit that stores the identification number of the parent unit and the identification number of the child unit, an alarm reporting unit that issues an alarm sound in response to an operation signal, and the parent unit transmits to the child unit. The identification number is compared with the identification number stored in the identification number storage means, and when the two numbers match, the alarm issuing means operates based on the start signal of the alarm sound transmitted from the master unit. A control means for controlling the transmission of the signal is provided.

[0010]

When the user of the master unit arbitrarily calls the slave unit, the number of the slave unit to which the alarm sound is to be emitted in advance by the input means,
Input the time when the warning sound is emitted. This input information is stored in the input information storage means.

The control means of the base unit monitors the present time, which is set by an internal timer, based on the time data stored in the input information storage means. Then, when the current time by the internal timer coincides with the time data, the control unit reads the slave unit number corresponding to the time data stored in the input information storage unit, and the identification number corresponding to this slave unit number. And the identification number of the parent device are read from the identification number storage means, and control is performed to transmit the identification number information and the alarm sound start signal to the child device side.

The control means of each slave unit that receives this transmission signal compares the identification number included in the received signal with the identification number of the slave unit stored in the identification number storage means. When the two identification signals match, the control means sends an operation signal to the alarm issuing means based on the start signal of the alarm sound included in the received signal. The alarm reporting means receives the operation signal and emits an alarm sound.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the electrical construction of the cordless telephone of the present invention.

This cordless telephone comprises a base unit 1 connected to a telephone line (not shown) and a plurality of handset units 2 connected to the base unit 1 by a wireless line. However, in the drawing, only one child device is shown.

The master unit 1 is provided with an input unit 3 as a means for inputting various information in the main unit body. The input unit 3 is for inputting the ID code of each slave unit 2 by key operation and for inputting and setting the time at which an alarm sound is emitted from the slave unit 2 selected in advance, and its output is given to the RAM 4. There is.
The RAM 4 is an input information storage unit that stores the ID code of each slave unit 2 input from the input unit 3 and the set time corresponding to each slave unit 2, and is bidirectionally connected to the master unit control unit 8. ing.

The output of the timer 7 for measuring the current time is guided to the master unit control section 8 and IDRO for storing the ID codes (identification signals) of the master unit 1 and all the slave units 2.
The output of M5 and the output of the control signal ROM 6 that stores various control signals of the master unit 1 are connected. The control signal stored in the control signal ROM 6 includes a warning sound start signal “sounds a warning sound”.

The output of the master unit control unit 8 is connected to the modulation unit 9, and the output of the modulation unit 9 is connected to the antenna 13 via the transmission unit 10 that transmits a signal to the slave unit 2 side. ing. Further, the antenna 13 is connected to a receiving unit 11 that receives a signal from the slave unit 1, and an output of the receiving unit 11 is connected to a master unit control unit 8 via a demodulation unit 12.

The master unit control unit 8 is composed of a CPU (central processing unit), controls the operation of the master unit 1 as a whole, and the current time from the timer 7 becomes the set time stored in the RAM 4. At this time, the ID code of the slave unit number corresponding to the set time is read from the IDROM 5,
In addition, control is performed so that this ID code is transmitted to the slave unit 2 side together with the start signal of the alarm sound stored in the control signal ROM 6.

On the other hand, the antenna 14 of the child device 2 is connected to the parent device 1
The receiving unit 15 that receives the transmission signal from the side is connected, and the output of the receiving unit 15 is connected to the slave unit control unit 22 via the demodulation unit 16. The output of the slave unit controller 22 is connected to the modulator 17, and the output of the modulator 17 is
It is connected to the antenna 14 via a transmission unit 18 that transmits a signal to the base unit 1 side.

The slave unit controller 22 stores an IDR storing the ID code of the slave unit 2 and the ID code of the master unit 1.
The output of the OM 19 and the output of the control signal ROM 20 storing various control signals of the slave unit 2 are connected to each other. The control signals stored in the control signal ROM 20 include an alarm sound start signal "beep an alarm sound for a certain period of time" and a response signal "incoming".

The output of the slave unit control unit 22 receives an operation signal and emits an alarm sound such as a ringing sound.
It is connected to the.

The cordless handset controller 22 is composed of a CPU (central processing unit), controls the operation of the cordless handset 2 as a whole, and transmits an ID code and an alarm sound start signal from the cordless handset 1 side. When it comes, the IDROM 5 on the child device 2 side
In comparison with the ID code stored in, the operation signal is sent to the alarm sound generation unit 21 when both codes match, and the alarm sound generation unit 21 is controlled to operate for a certain period of time.

Next, the operation of the cordless telephone having the above configuration will be described with reference to the flow charts shown in FIGS. However, FIG. 2 is a flow chart for explaining the operation of the master unit 1, and FIG. 3 is a flow chart for explaining the operation of the slave unit 2.

First, when the user of the master unit 1 wants to sound the alarm of a specific slave unit 2 at an arbitrary time, the number of the slave unit 2 which sounds the warning sound in advance by the input unit 3 and the warning sound is emitted. Input and set the time to sound. This input information is stored in the RAM 4 as a slave unit number and set time.

In this state, the master unit control section 8 constantly monitors whether the time of the timer 7 has reached the set time stored in the RAM 4 (step S11), and confirms that the set time has come. (Step S12), RAM
No. 4 is searched to determine whether or not there is information on the slave unit number (step S13). Here, if the slave unit number is not designated, the operation ends (step S14).

On the other hand, if the cordless handset number is designated in the determination at step S13, the data of the cordless handset number for which the alarm sound should be emitted is read out, and the ID is determined based on this number data.
The ID code corresponding to this number data is read from the RAM 5. Further, the data of the start signal of the alarm sound "Alarm sound" is read from the control signal ROM 6 and the transmission signal is generated together with the ID code (step S1).
6).

This transmission signal is modulated by the modulator 9 (step S17), and after confirming the availability of the control channel, it is transmitted from the antenna 13 to the slave unit 2 side via the transmitter 10 (step S18).

The transmission signal from the base unit 1 is received by the receiving unit 15 via the antenna 14 on the side of each handset 2.
After demodulated to the original signal by the demodulation unit 16, the slave unit control unit 2
2 (steps S31 and S32).

The slave unit controller 22 controls the I included in the received signal.
D code and own ID stored in IDROM 19
The code is compared (step S33). Both I here
When the D codes do not match, the slave unit control unit 22 determines that it is not an instruction to the slave unit, and ends the operation without sending an operation signal to the alarm sound generation unit 21.

On the other hand, if the ID codes match in the determination at step S33, the operation control of the alarm sound is performed and the answer back control for notifying the master unit 1 of the reception confirmation is performed (step S34).

That is, the slave unit control section 22 decodes the content of the control signal (warning sound start signal) from the master unit 1 and starts the warning sound "alarm for a certain time" from the control signal ROM 20. The signal is read out, and an operation signal is sent to the alarm sound generator 21 based on this start signal (step S
35). Based on this operation signal, the alarm sound generator 21
After operating for a fixed time and emitting an alarm sound, the operation ends (step S36).

Further, the slave unit control section 22 controls the RO for control signal.
The data of the response signal "incoming" is read from M20, and the ID code of the parent device 1 and the ID code of the child device 2 are read from the IDROM 19 to generate a transmission signal (steps S37 and S38). The generated transmission signal is modulated by the modulator 17 (step S3
9), after confirming the availability of the control channel, the transmitter 18
The data is transmitted from the antenna 14 to the base unit 1 side via (step S40).

The transmission signal from the slave unit 2 is received by the receiving unit 11 via the antenna 13 on the base unit 1 side (step S19), and demodulated to the original signal by the demodulating unit 12 (step S20). , To the master unit control unit 8.

When the master unit control section 8 confirms from the received signal that the previously transmitted signal has arrived at the slave unit 2 (step S21), the information about the slave unit number is RA.
Erase from M4 to end the series of operations (step S2
2).

As described above, when the user of the master unit 1 wants to sound the alarm of any slave unit 2 at any time, the input unit 3
By setting the number of the slave unit to be sounded by and the alarm time, it is possible to sound the alarm of the slave unit required at the required time without going to the place where the base unit 1 is placed.

[0037]

According to the cordless telephone of the present invention, if the user of the base unit inputs and sets in advance the number of the slave unit to which the alarm sound is to be emitted and the time at which the alarm sound is emitted, the set time is set. When it becomes, the identification number information and the alarm start signal are sent to the slave unit, and the alarm sound is emitted from any slave unit. In doing so, the user does not need to go to the place where the base unit is placed, and the operation of the call button is unnecessary, so that the convenience of the cordless telephone is improved. In addition, when calling the child device, there is an effect that it is not necessary to switch to the extension call state in order to simply emit the ringing sound as in the conventional case.

[Brief description of drawings]

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

FIG. 2 is a flowchart for explaining the operation of the parent device.

FIG. 3 is a flowchart for explaining the operation of the child device.

[Explanation of symbols]

 1 master unit 2 slave unit 3 input unit 4 RAM 5 IDROM 8 master unit control unit 19 IDROM 21 alarm sound generation unit 22 slave unit control unit

Claims (1)

[Claims] 1. A cordless telephone comprising a master unit connected to a telephone line and a plurality of slave units connected to the master unit by a wireless line, wherein the master unit inputs the number of the slave unit. And input means for inputting the time at which an alarm sound is emitted from any slave, input information storage means for storing the slave number and set time input by this input means, and the identification number of the master. Identification number storage means for storing an identification number for identifying each of the slaves, and when the set time stored in the input information storage means comes, the identification number of the slave corresponding to the set time and the master And a control means for controlling the transmission of the identification number from the identification number storage means to the slave unit side together with the start signal of the alarm sound, and the slave unit, the identification number of the master unit and the slave unit. Enter the identification number Identification number storage means, an alarm issuing means for issuing an alarm sound in response to an operation signal, and an identification number transmitted from the master unit and an identification number stored in the identification number storage means are compared. , And a control means for performing control for sending an operation signal to the alarm issuing means based on a start signal of an alarm sound transmitted from the base unit when both numbers match with each other. Telephone.