JPH06164484A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To provide a cordless telephone set easily setting the time of a clock circuit. CONSTITUTION:A master device 2 is provided with a clock circuit 235, display element 234 which displays the time counted by the clock circuit 235, and keys 231 and 232 which set the time of the clock circuit 235. A slave device 1 is provided with a clock circuit 135 and a display element 134 which displays the time on the clock circuit 135. With the operation of the keys 231 and 232 of the master device 2, the time is set to the clock circuit 235 of the master device 2, and then the data of the set time is sent from the master device 2 to the slave device 1. In the slave device 1, the time indicated by data sent from the master device 2 is set to the clock circuit 135 of the slave device 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone having a clock function.

[0002]

2. Description of the Related Art The call charge of a telephone differs depending on the call time, the call time or the telephone company used. Therefore, in some cordless phones, a clock circuit is provided in the base unit and the handset so that the user can know the call time and the call time.

[0003]

However, in order to use the clock function provided in the master unit and the slave unit, the clock circuit must be set to the correct time. However, in order to set the clock circuits of the master unit and the slave unit to the correct time, it is necessary to perform a troublesome key operation in each of the master unit and the slave unit. Moreover, the master unit and the slave unit are
Since it is usually in a remote place, it is even more troublesome and time-consuming. In the case of a multi-slave system in which a plurality of slaves can be used for one master, it is necessary to set the time for each slave. The present invention is intended to solve such a problem.

[0004]

For this reason, in the present invention, when the reference numerals of the respective parts are made to correspond to the embodiments described later, for example, the master unit 2 measures the clock circuit 235 and the clock circuit 235. A display element 234 for displaying time and the like
And a key 23 for setting the time in the clock circuit 235.
1, 232 are provided, and the slave unit 1 is provided with a clock circuit 135 and a display element 134 for displaying the time measured by the clock circuit 135. Then, the keys 231 and 2 of the base unit 2
When the time is set in the clock circuit 235 of the master unit 2 by the operation of 32, the master unit 2 transmits the data of the set time to the slave unit 1, and the slave unit 1 transmits the data from the master unit 2. The time indicated by the data is set in the clock circuit 135 of the child device 1.

[0005]

For example, when the time of the clock circuit 235 of the master unit 2 is set, the data of the set time is transmitted to the slave unit 1, and the clock circuit 135 of the slave unit 1 indicates the time indicated by the transmitted data. It is set automatically.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 is a slave unit, 2 is a master unit, and 3 is a telephone line (external line). Then, in the child device 1, 10
Reference numeral 0 is a transmission / reception antenna, 110 is a transmission circuit for transmitting a voice signal and a command signal CMND described later, 111 is a transmitter, 120 is a reception circuit for receiving a voice signal and command signal CMND, and 121 is a receiver. Further, in the handset 1, 131 is a dial key, 132 is various operation keys, 133 is an incoming ringer, 134 is an LCD for displaying the call time and the current time, and 135 is a clock for the current time. This is a clock circuit to be performed, and the current time measured by the clock circuit 135 is displayed on the LCD 134.

A system control microcomputer 140 controls the operation of each circuit described above by the microcomputer 140, and a command signal CMND.
Formation and decoding are performed. Further, the microcomputer 140 has, for example, a routine 300 shown in FIG. 2 as a part of its processing routine.

The slave unit 1 is set to the intermittent reception mode during standby in order to suppress the consumption of a built-in power source battery (not shown). That is, for example, as shown in FIG. 4A, the receiving circuit 120 alternately has a period of 70 ms in which the operating voltage is supplied and is in an operating state, and a period of 2.5 seconds in which the operating voltage is not supplied and is in a rest state. Repeated. Therefore, the current consumed by the receiving circuit 120 during standby is
Compared to the case where the operating voltage is continuously supplied to the receiving circuit 120, 70 msec / (70 msec + 2.5 sec) ≈2.7%, and the consumption of the built-in battery can be reduced.

Note that the receiving circuit 120 is continuously supplied with an operating voltage during a period in which it is necessary to connect the slave unit 1 and the master unit 2 through a wireless channel, such as during a call.
It is continuously operated. In addition, the transmission circuit 110
As a matter of course, the operating voltage is supplied to bring the child device 1 and the parent device 2 into an operating state only during a period in which it is necessary to connect the child device 1 and the parent device 2 through a wireless channel.

On the other hand, the base unit 2 also has the same transmitting / receiving antenna 200, the transmitting circuit 210, the transmitter 211, the receiving circuit 220, the receiver 221, the dial key 231, various operation keys 232, and the same incoming / outgoing call as the slave unit 1. Ringer 233, LCD 234 for displaying call time, current time, etc., clock circuit 2
35, it has a microcomputer 240 for system control. Then, the microcomputer 240 uses, for example, the routine 40 shown in FIG.
Has 0. 229 is an NCU. Further, in the master device 2, 250 is an α-LCR circuit. This α
The LCR circuit 250 is a circuit that specializes in call time, call time, charge calculation, etc., and is configured by a one-chip microcomputer.

Although not shown, the base unit 2 uses a DC voltage obtained from a commercial AC voltage as a power source, so that the receiving circuit 22
In 0, the operating voltage is always supplied and the operating state is 0.
However, similarly to the transmission circuit 110, the transmission circuit 210 is operated by being supplied with an operating voltage only during a period in which the slave unit 1 and the master unit 2 need to be connected via a wireless channel.

Further, FIG. 3 shows an example of a signal format of the command signal CMND. This signal CMND is used when a predetermined protocol is executed between the handset 1 and the base 2, such as when a call is made, and when data is accessed between the handset 1 and the base 2. Is a signal to be accessed between the child device 1 and the parent device 2. And this signal CMND is
It has a 24-bit bit synchronization signal BITS at its head, and subsequently has a 16-bit frame synchronization signal FRMS.

In addition, the signal CMND follows the signal FRMS 25
Bit system identification code SYSID and this code SYSID
It has a 12-bit error correction code ECC and a 3-bit dummy bit DMYB in order, and a 5-byte control code CTRL following the dummy bit DMYB. In this case, the first byte of the control code CTRL is the slave unit 1
Alternatively, it is a code indicating the control content for the master unit 2,
The second byte to the fifth byte are parameters or data related to the first byte.

When the slave unit 1 or the master unit 2 receives this command signal CMND, the microcomputer 140 or 240 stores the identification code SYSID included in the signal CMND in its own microcomputer 140 or 240. It is checked whether or not it matches the identification code SYSID, and only when it matches, the command signal CM
ND is valid and ignored if they do not match.

During a call, the voice signal from the transmitter 111 is supplied to the transmission circuit 110 and converted into the FM signal of the upstream call channel, and this FM signal is transmitted to the base unit 2 through the antenna 100. It Then, in the master unit 2, the FM signal from the slave unit 1 is transmitted to the antenna 200.
The original audio signal received by and received by the receiving circuit 220 is taken out, and this audio signal is sent out to the line 3 through the NCU 229.

The voice signal of the other party from the line 3 is N
It is supplied to the transmission circuit 210 through the CU 229 and converted into the FM signal of the downlink communication channel, and this FM signal is transmitted to the handset 1 through the antenna 200. Then, in the handset 1, the FM signal from the base unit 2 is received by the antenna 100, and the original voice signal is supplied to the receiving circuit 120, and the voice signal is taken out.
21. Therefore, it is possible to talk with the other party.

When a call is made from the handset unit 1, when the talk key of the keys 132 is pressed in the handset unit 1, the control code CTRL in the microcomputer 140 of the handset unit 1 is a command signal indicating a call request. CMND is formed and this signal CMND
Is transmitted to the master unit 2 through the upstream control channel, and thereafter, a predetermined command signal CMND is accessed between the slave unit 1 and the master unit 2 so that it is transmitted between the slave unit 1 and the master unit 2. The call channel is opened, and the base unit 2 is connected to the line 3.

Therefore, when the telephone number of the other party is input from the dial key 131, a command signal CMND having the dial signal as the control code CTRL is formed.
CMND is transmitted from the handset unit 1 to the base unit 2 through the upstream call channel, and the dial signal is transmitted from the base unit 2 to the line 3
Sent to. Therefore, after that, when the other party answers the call, the call can be made using the handset 1 as described above.

Further, when a ringer signal is sent from the line 3 at the time of incoming call, this is detected by the microcomputer 240 through the NCU 229, and in the microcomputer 240 of the master unit 2, the control code CTRL indicates a command signal indicating an incoming call request.
CMND is formed, and this signal CMND is transmitted to the child device 1 through the downlink control channel.

At this time, the handset 1 is in the intermittent reception mode for saving power as described above, but the FM signal of the command signal CMND indicating the incoming call request is 2.5 seconds in the intermittent reception mode. This is received during the 70 ms operating period, as it is transmitted for a period longer than the rest period of. Then, thereafter, the receiving circuit 120 is continuously operated, and a predetermined command signal CMND is transmitted and received between the master unit 2 and the slave unit 1 to make a call between the master unit 2 and the slave unit 1. The channel opens. Then, in the mobile device 1, the ringer 133 is driven and the incoming call is announced. Then, when the talk key of the operation keys 132 of the child device 1 is pressed, this is notified from the child device 1 to the parent device 2 by the command signal CMND, and the parent device 2 is connected to the line 3. In addition, cordless handset 1
Ringer 133 of will not be driven. Therefore,
After that, the handset 1 can talk with the other party.

Further, when the call is finished, the operation key 1
When the talk key of 32 is pressed, the control signal CTRL forms the command signal CMND indicating the request to end the call.
The CMND is transmitted to the base unit 2, and the base unit 2 executes the call termination process according to the command signal CMND, and the base unit 2 enters the standby state. In addition, the handset 1 also executes the call termination process after transmitting the command signal CMND for the call termination, and enters the standby state.

Further, the transmitter 211 and the receiver 2 of the base unit 2
When using 21, the dial keys 231, etc., the same operation as a general telephone is performed, and the base unit 2 can make a call, a call, a call, and the like.

The above is the original operation of the cordless telephone of the handset 1 and the base unit 2, but in the present invention,
The time adjustment of the clock circuits 135 and 235 is executed as follows.

That is, during standby, the operation keys 23 of the base unit 2
When the user presses the registration key of 2, the processing of the microcomputer 140 starts from step 401 of the routine 400, and then, at step 402, it waits for key input.

Then, the time key of the operation keys 232 is pressed, and then the day of the week is input by the dial key 231. In this case, the "1" to "7" keys of the dial key 231 correspond to "Sunday" to "Saturday", respectively. Then, when the day of the week is input, the time key of the operation keys 232 is pressed again, and then the time is input by the dial key 231. At this time, the time is input as a four-digit number. For example, if the input time is "2:55 am", "0255" is input. Then, finally, the registration key of the operation keys 232 is pressed again.

Then, the processing of the microcomputer 240 proceeds from step 402 to step 403, and this step 403
In step 402, the day and time entered in step 402 are
It is set in the clock circuit 235. Then, the process proceeds to step 404, in which the control code CTRL requests the time setting and the command signal CM indicating the time data set in the clock circuit 235 in step 403.
ND is formed, and this signal CMND is repeatedly transmitted through the downlink control channel for 3.5 seconds as shown in FIG. 4B, for example. When this transmission is completed, the routine 400 is completed in step 405, and the master device 2 enters the standby state again.

On the other hand, when the base unit 2 starts the processing of the routine 400, the handset unit 1 is in the standby state and is in the intermittent reception mode, but the transmission in step 403 is 3.5 as shown in FIG. 4B. Since it is performed over a period of 2 seconds,
When the operation period of 0 msec is reached, the command signal CMND transmitted in step 403 is received.

Then, the processing of the microcomputer 140 of the handset 1 starts from step 301 of the routine 300,
Next, in step 302, the received command signal CM
The control code CTRL of the ND is checked, and in this case, the control code CTRL indicates the request for setting the time (and the time data set in the clock circuit 235 in step 403). Therefore, the process proceeds from step 302 to step 303. Go to
In this step 303, the received command signal CM
The time indicated by the control code CTRL of ND is set in the clock circuit 135, and thereafter, in step 304, this routine 3
00, the slave unit 1 enters the standby state again and enters the intermittent reception mode.

The time set in the timepiece circuit 135 in step 303 is the time set in the timepiece circuit 235 in step 402, and the slave unit 1 is performing intermittent reception in the standby state. Although the time set to is delayed by a maximum of about 2.5 seconds with respect to the time of the clock circuit 235, in general, the LCD 13
When 4, 234 displays the time, it displays the hour and minute, but not the second, so there is no problem.

In step 302, the control code CTRL of the received command signal CMND is changed to the control code CTRL.
Does not indicate a time setting request, the process proceeds from step 302 to step 310, where the process indicated by the control code CTRL, for example, the incoming call process is executed.

Thus, according to the present invention, when the time of the clock circuit 235 of the master unit 2 is set, the set time is automatically transmitted to the slave unit 1 and also set in the clock circuit 135. The user can effectively use the clock function of the slave unit 1 without being aware of the time setting of the clock circuit 135 of the slave unit 1.

In the case of a multi-slave system in which a plurality of slaves 1 to 1 can be used, the clock circuit 2 of the master 2 is also used.
It is possible to set the time of all the slaves 1 to 1 to the time of the clock circuit 235 of the master 2 simply by setting the time of 35, and to set the time for each slave 1 to 1. No need.

By the way, in the above description, the keys 231 and
In the case where the time is set by 232.
-When the LCR circuit 250 is provided, the time setting can be automated by setting the routine 400 of the parent device 2 to the routine 410 shown in FIG. 5, for example.

That is, when the power of the base unit 2 is turned on,
Alternatively, when the registration key of the operation keys 232 is pressed, the processing of the microcomputer 140 causes step 411 of the routine 410.
Then, in step 412, the main unit 2 is started.
Is connected to the α-LCR center through line 3. Then, in the following step 413, the clock circuit 235 makes the α-LCR through online communication from the α-LCR center.
It is set to the current time managed by the center, and then the connection with the center is hooked on-hook.

Then, the process proceeds to step 414, in which the control code CTRL forms a command signal CMND indicating the time setting request and the time data set in the clock circuit 235 in step 413. The signal CMND is repeatedly transmitted over the downlink control channel for 3.5 seconds. When this transmission is completed, the routine 410 is completed in step 415, and the master device 2 enters the standby state again.

Then, in the slave unit 1, the routine 30
Since 0 is executed as described above, the clock circuit 1 of the slave unit 1
35 is set to the time set in the clock circuit 235 of the base unit 2.

Therefore, according to this example, the registration key of the operation keys 232 is pressed only by turning on the power of the base unit 2 to start using the base unit 2 or when it is necessary to confirm the time. Only by doing so, it is possible to set the time of the clock circuit 235 of the master unit 2 and the clock circuit 135 of the slave unit 1 to the correct time. And, in this case also, the cordless handset 1 being used
Even if there are multiple units, setting for each unit is not required.

In the above description, when the time of the clock circuit 235 of the master unit 2 is set, the clock circuit 135 of the slave unit 1 is set.
Although the time of is set, the predetermined key is provided on the child device 1 or the parent device 2, and when this key is operated,
The time may be read from the clock circuit 235 of the parent device 2 and the read time may be set in the clock circuit 135 of the child device 1 by a routine similar to the routines 300 and 400.

Further, in the above description, the time of the master unit 2 and the slave unit 1 is set by the key operation of the master unit 2, but the time of the slave unit 1 and the master unit 2 is set by the key operation of the slave unit 1. You can also Further, instead of providing a registration key for setting the time as the operation key 232 or 132, when a predetermined key operation is performed on the operation key 232 or 132, the operation key 232 or 132 may act as a registration key.

[0040]

When the time of the clock circuit of the master unit 2 or the slave unit 1 is set, the set time is transmitted to the slave unit 1 or the master unit 2, and the clock circuit of the slave unit 1 or the master unit 2 is automatically set. Therefore, the user can effectively use the clock functions of the slave unit 1 and the master unit 2 without being aware of the time setting of the clock circuit of the slave unit 1 or the master unit 2.

In the case of a multi-slave system in which a plurality of slaves 1 to 1 can be used, the clock circuit 2 of the master 2 is also used.
It is possible to set the time of all the slaves 1 to 1 to the time of the clock circuit 235 of the master 2 simply by setting the time of 35, and the time needs to be set for each slave 1 to 1. There is no.

[Brief description of drawings]

FIG. 1 is a system diagram showing an example of the present invention.

FIG. 2 is a flowchart showing an example of the present invention.

FIG. 3 is a diagram showing an example of a signal format.

FIG. 4 is a diagram showing a transmission / reception relationship.

FIG. 5 is a flowchart showing another example of the present invention.

[Explanation of symbols]

 1 Slave device 2 Parent device 3 Telephone line 110, 210 Transmission circuit 120, 220 Reception circuit 131, 231 Dial key 132, 232 Operation key 134, 234 LCD 135, 235 Clock circuit 250 α-LCR circuit

Claims (4)

[Claims] 1. One of the slave unit and the master unit has a clock circuit, a display element for displaying the time measured by the clock circuit, and a key for setting the time in the clock circuit. A cordless telephone configured to, when a time is set in the clock circuit by operating a key, transmit the data of the set time from the one to the other of the slave and the master. 2. One of the slave unit and the master unit has a clock circuit and a display element for displaying the time measured by the clock circuit, and the data indicating the time from the other of the slave unit and the master unit. A cordless telephone in which the above clock circuit is set at the time indicated by the data when is transmitted. 3. The master unit has a clock circuit, a display element for displaying the time measured by the clock circuit, and a key for setting time in the clock circuit, and the slave unit is a clock circuit. And a display element for displaying the clocked time of this clock circuit, etc., when the time is set in the clock circuit of the master unit by the operation of the key of the master unit, The cordless telephone configured to transmit the data of the set time to the slave unit and set the time indicated by the data transmitted from the master unit in the clock circuit of the slave unit in the slave unit. 4. The master unit has a clock circuit, a display element for displaying the time measured by the clock circuit, a key for setting the time in the clock circuit, and an α-LCR circuit, The slave unit has a clock circuit and a display element for displaying the time measured by this clock circuit. When a predetermined key operation is performed on the master unit, α-L
The time is set online from the CR center to the clock circuit of the master unit, and the data of the set time is transmitted from the master unit to the slave unit, and is transmitted from the master unit to the slave unit. A cordless telephone in which the time indicated by the received data is set in the clock circuit of the slave.