JPH08976U - Cordless phone - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] In a cordless telephone, it is possible to reliably know the current state of a call mode of a handset, and
Even if there is an incoming call when the lights are turned off at night, etc., a quick and reliable response can be made without giving discomfort to the other party. SOLUTION: When the power switch 20 is switched to the call position 20, the control circuit 11 turns on the illumination lamp 14 via the lamp drive circuit 19 to perform illumination, while there is an incoming call through the telephone line and a predetermined number is given from the base unit. If a radio wave is emitted and the power switch 20 is switched to the standby position 20b, the radio wave is received by the antenna 6, and the R at the rear stage is received.
After being amplified and modulated by the F circuit 7 and the IF circuit 8, the incoming signal is output to the incoming call detection circuit 9 and the incoming signal is detected, converted into a control signal by the FSK circuit 10 and output to the control circuit 11, and accordingly, The control circuit 12 is the ringer circuit 1
The speaker 13 is driven via 2 to notify the owner of the incoming call, and the lamp driving circuit 19 is used to turn on the illumination lamp 14 for illumination.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a cordless telephone including a master unit connected to a telephone line and a slave unit wirelessly connected to the master unit and capable of communicating.

[0002]

[Prior art]

 As shown in FIG. 3, a telephone of this type that has been generally used in the past can connect to the base unit 2 connected to the telephone lines 1 and 1 and a wireless connection to the base unit 2 to make a call. When receiving an incoming call through the telephone lines 1 and 1, a radio wave is emitted from the base unit 2 through the antenna 4 and the standby state is set by the power switch 5 arranged on the operation panel surface. If the handset 3 is on, the handset 3 receives the radio wave emitted from the base unit 2 and rings a bell or the like to notify that there is an incoming call, and the power switch 5 is switched to the ON position to enable a call. There is.

[0003]

[Problems to be solved by the device]

 By the way, the above-mentioned conventional cordless telephone has the convenience that the mobile device, which actually makes a call with the other party, is wirelessly connected to the master device connected to the telephone line, so that the movement is free. . However, in such a cordless telephone, there is a problem that it is not possible to know where the cordless handset is because the cordless handset can move freely. It is not easy to use because it is necessary to search for the handset, and it is difficult to determine where the handset is, especially when there is an incoming call when the lights are off at night. However, there was a problem that it made the other person feel uncomfortable.

Further, in order to make a call in response to an incoming call, it is necessary to operate the mode control button to switch to a call state, but in a dark place such as when the lights are turned off at night, the handset is provided like this. It is difficult to operate such a small button accurately, and there is a problem that if the wrong button is operated, it may become impossible to respond to an incoming call, which causes a feeling of discomfort to the other party.

The present invention provides a cordless telephone that can easily inform where a handset is located when an incoming call is made when the lights are turned off at night, and can switch to a call state and make a call without causing an erroneous operation. The purpose is.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a master unit connected to a telephone line and a slave unit wirelessly connected to the master unit and capable of making a call. An operation button for inputting a telephone number and the like, a mode control button for switching a call mode, and a control means for controlling switching between a call state and a call standby state based on the operation of the mode control button, When a call is received during a call standby and a call is received through the telephone line, the mode is switched to the call state in response to the operation of the mode control button. Is also provided with illumination means for illuminating the mode control button, and the control means controls the call status based on the operation of the mode control button when there is an incoming call through the telephone line during call waiting. And in which to perform control to illuminate the illumination means when.

Therefore, when there is an incoming call through the telephone line during a call standby, the control means controls the lighting means to illuminate the mode control button, so that the handset can respond to the incoming call when the light is turned off at night. You can easily tell where is, and you can surely operate the mode control button even in a dark place. Further, when the call mode of the handset is switched to the call state, the control means controls the lighting means to illuminate the mode control button so that the current state of the call mode of the handset can be surely known. it can.

[0008]

[Embodiment of device]

 Hereinafter, embodiments of the present invention will be described in detail according to examples shown in the drawings.

In FIG. 1, 6 is an antenna, 7 is an RF circuit that performs frequency conversion and amplification, 8 is an IF circuit that further amplifies the IF signal obtained by the RF circuit 7, and 9 is an incoming call detection that detects an incoming signal. A circuit 10, 10 is an FSK circuit for converting an incoming signal detected by the incoming call detection circuit 9 into a predetermined signal, 11 is a control circuit for controlling each part at the time of incoming call, and 12 is a speaker 13 for driving a ringing sound at the time of incoming call. The ringer circuits 14, 14, ... To be generated are illumination lamps, which are provided between the push button switches 18, 18 ... As shown in FIG. 2, and perform illumination from the rear via the operation panel 16. Further, in FIG. 1, 19 is a drive circuit for driving the illumination lamps 14, 14, ..., 20 is a power switch (mode control button), and 21 is a drive battery.

Next, the operation of the cordless telephone configured as described above will be described.

When an incoming call is received through the telephone line, a predetermined radio wave is emitted from a base unit (not shown), and if the power switch 20 is switched to the standby position 20b, the antenna 6 receives the radio wave. The radio wave received by the antenna 6 is amplified and modulated by the RF circuit 7 and the IF circuit 8 in the subsequent stage, and then output to the incoming call detection circuit 9 to detect the incoming call signal. Further, the signal output from the incoming call detection circuit 9 is input to the FSK circuit 10 at the next stage, converted into a control signal suitable for operating the control circuit 11, and output to the control circuit 11. When a control signal is input from the FSK circuit 10 to the control circuit 11, the speaker 13 is driven via the ringer circuit 12 to notify the owner of the incoming call, and at the same time, the lamp driving circuit 19 is used to illuminate the lamps 14 and 14. … Turn on the lights to illuminate. After that, the owner can switch the power switch 20 to the call position 20c in response to the ringing tone to make a call by the transmission / reception circuit (not shown).

On the other hand, when making a call from this side, when the power switch 20 is switched to the call position 20 c, the control circuit 11 turns on the illumination lamps 14, 14, ... I am supposed to do it.

Also, when the power switch 20 is switched to the off position 20a, incoming and outgoing cannot be performed.

Therefore, in the cordless telephone according to the above-described embodiment, even if the power switch 20 is in the standby position 20b even when there is an incoming call such as when the lights are turned off at night, the illumination is performed according to the incoming call. Since the slave unit can be easily found, and the push buttons 15, 15 ... Corresponding to the power switch 20 etc. are illuminated in response to an incoming call when the power switch 20 is in the standby position 20b, the lights are turned off at night. It is possible to reduce the mistaken operation of the power switch 20 in such cases. Further, even when making a call, the operation buttons and the like are illuminated by switching the power switch 20 to the call position 20c, so that the call can be made easily without making a mistake in pressing.

[0015]

[Effect of device]

 As described above, according to the first aspect of the present invention, the control means controls the lighting means to illuminate the mode control button when an incoming call is received through the telephone line in the call waiting mode. Since it is possible to easily know where the slave unit is even when the lights are turned off at night, even if an incoming call is received when the lights are turned off at night, it is possible to immediately respond to the incoming calls and make the other party uncomfortable. It is possible to respond without any trouble and to prevent the operation of the mode control button for switching the call mode of the handset to the call state when receiving a call even in a dark place by illuminating the mode control button by the lighting means. It is possible to prevent incoming calls from becoming unresponsive.

Further, when the call mode of the child device is switched to the call state, the control means controls the lighting means to illuminate the mode control button so that the call mode of the child device can be easily determined. The communication mode of the handset can be reliably switched by operating the mode control button.

[Brief description of drawings]

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

FIG. 2 is a front sectional view of a cordless handset used in a cordless telephone according to an embodiment of the present invention.

FIG. 3 is a schematic view of a conventionally generally used cordless telephone.

[Explanation of symbols]

 6 antenna 7 RF circuit 8 IF circuit 9 incoming call detection circuit 10 FSK circuit 11 control circuit 12 ringer circuit 13 speaker 14 illumination lamp 19 lamp drive circuit 20 power switch

Claims (1)

[Scope of utility model registration request] 1. A master unit connected to a telephone line, and a slave unit wirelessly connected to the master unit so that a telephone call can be made, and the other party's telephone number or the like is input to the slave unit. It is equipped with operation buttons, a mode control button for switching the call mode, and control means for controlling switching between the call state and the call standby state based on the operation of the mode control button. When there is, switch to the call state in response to the operation of the above mode control button,
In a cordless telephone for making a call from a slave unit via a master unit, the slave unit is provided with lighting means for illuminating at least the mode control button, and the control means receives an incoming call through a telephone line in a call waiting state. A cordless telephone characterized in that when the telephone is in a call state based on an operation of a mode control button, the illumination means is controlled to illuminate.