KR0124180B1 - Method for controlling auto-tank of cordless phone - Google Patents

Abstract

An improved method for controlling the auto talking of the wireless telephone whereby the calling loop is generated in case of separating the potable means of the wireless telephone from the charge part. The said method comprising the steps of: (a) detecting the portable means separating from the charge part without calling signal; (b) counting in order to decide to the dial signal; and (c) switching off the calling loop automatically in case of not detecting the dial signal.

Description

Auto talk control method of cordless phone

1 is a schematic block diagram of a typical wireless telephone suitable for carrying out the method for auto talk control of a wireless telephone according to the present invention.

2 is a flowchart showing an auto talk control process of a wireless telephone according to a preferred embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

10: portable device 11: dial input unit

12: power input detection unit 13,23: microprocessor

14,24: channel controller 15,25: wireless transceiver

16: voice amplifier 17: handset

20: fixing device 21: ring detection unit

22: telephone call circuit section 26: DTMF generating section.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless telephone, and more particularly, to an automatic torque control method of a wireless telephone having an auto-talk function in which a trunk line is automatically looped after the portable device of the wireless telephone is detached from a fixed device or a charging station. It is about.

In general, a portable device in a cordless phone is configured to be charged and placed on a charging stand for non-use, and a telephone loop is automatically turned on when the portable device is disconnected from the charging stand in order to alleviate the inconvenience of using a call button during a phone call. It is provided with the auto torque function.

However, when the portable device of a conventional cordless telephone equipped with the above-mentioned auto talk function is seated on the charging stand, the user's carelessness or a portable device caused by a child or pet falls down or the power adapter of the charging stand falls out of the outlet, the automatic talk function As a result, unnecessary telephone loops are continuously formed to occupy trunk lines.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, and provides a method for auto-talk control of a cordless telephone that enables the telephone loop to be turned on / off in accordance with the detachment and dialing of the portable device from the charging station. Its purpose is to.

The present invention provides a method for automatically forming a telephone loop when a portable device of a wireless telephone is detached from a charging station, the method comprising: detecting that the portable device is disconnected from the charging station in the absence of a ring signal input; When the portable device is disconnected from the charging station, forming a telephone loop of the wireless telephone and starting counting to determine whether there is a dial input within a set time; Determining a dial input within a set time and automatically turning off the telephone loop of the wireless telephone when there is no input; If there is a dial input within a set time, generating, transmitting, and performing a call corresponding to the entered dial; If the portable device is disconnected from the charging station while the ring signal is input, the telephone loop is turned on until the phone is hooked on.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a schematic diagram of a typical wireless telephone suitable for carrying out the auto talk control method according to the present invention.

As shown in the figure, a typical typical wireless telephone is divided into a portable device 10 and a fixed device 20, which is a dial input unit 11, a power input detection unit 12, a microprocessor. (13), a channel adjusting unit (14), a wireless transmitting / receiving unit (15), a voice amplifier (16), a handset unit (17), and the fixing device (20) includes a ring detector (21) and a telephone call circuit unit (22). ), A microprocessor 23, a channel adjuster 24, a wireless transceiver 25, and a DTMF generator 26.

In the figure, the dial input unit 11 is an input means for performing a desired operation of the wireless telephone, and includes various special keys including a number button for dialing and a call button for hook on / off function. do.

The power input detector 12 determines whether the portable device 10 is being charged by being mounted on the charging stand, and applies the detection signal to the microprocessor 13 when the portable device 10 is removed from the charging stand.

In addition, the microprocessors 13 and 23 control the overall operation of each of the portable device 10 and the stationary device 20, and the channel adjusting units 14 and 24 provide wireless communication between the portable device 10 and the stationary device 20. A phase-locked loop (PLL) is used as a means for fixing a channel for transmission and reception on the basis of a control signal from the microprocessors 13 and 23.

Meanwhile, the wireless transceivers 15 and 25 are means for wirelessly transmitting / receiving a fixed channel between the portable device 10 and the fixed device 20 by the channel adjusting units 14 and 24.

The voice amplifier 16 is a means for amplifying a voice signal between the handset 17 and the wireless transceiver 15 of the portable device 10 based on a control signal from the microprocessor 13.

In addition, the handset 17 is a means for converting a voice signal into an electrical signal and an electrical signal into a voice signal in the portable device 10, and the ring detector 21 detects a ring signal transmitted through a trunk line. The detection signal is transmitted to the microprocessor 23 of the fixing device 20.

On the other hand, the telephone call circuit section 22 turns on / off the telephone loop of the wireless telephone based on the control signal from the microprocessor 23.

Finally, the DTMF generation unit 26 generates a DTMF (Dual Tone Multi-Frequency) signal corresponding to the telephone number of the called party who wants to connect based on the control signal from the microprocessor 23.

Next, the selective loop-off process for performing the auto talk function of the wireless telephone according to the preferred embodiment of the present invention in the wireless telephone including the above-described configuration will be described in detail with reference to the flowcharts of FIGS. 1 and 2.

First, in order to selectively control the auto talk function only in case of transmission, the microprocessor 23 determines whether a ring signal is input from the ring detection unit 21 (step 200). It is continuously determined whether the 10 is separated from the charging stand (not shown) (steps 201 and 203), that is, the microprocessor 13 in the portable device 10 detects the detection signal from the power input detector 12, that is, the portable device ( When the signal 1) and the charging station are separated from each other, the signal is applied to the microprocessor 23 of the fixing device 23 so that the microprocessors 13 and 23 detect the separation between the portable device 10 and the charging station. You can do it.

As a result of the determination in step 205, when the portable device 10 is detached from the charging station, the microprocessor 23 automatically forms a telephone loop of the wireless telephone by occupying the trunk line to perform the auto talk function (step 207).

As the telephone loop is turned on, the user can make a call, and the microprocessor 23 determines the hook-on state of the wireless telephone (step 211), and when the hook-on is turned off, the telephone loop is turned off in step 216. End all process.

On the other hand, when the ring signal is not input as a result of the determination of step 200, it is first determined whether the portable device 10 is separated from the charging stand (step 202), and if not, the status of the portable device 10 is not. If it is detected (step 204) and if it is detected to be separated (step 206), the telephone loop of the wireless telephone is automatically formed (step 208) and the set predetermined time count is started (step 210).

Next, if there is a dial input from the dial input unit 11 for the predetermined time (steps 212 and 214), the start of counting in the step 210 is cleared (step 218) and the dial number input in the step 212 is performed. A call is generated by generating a Dual Tone Multi-Frequency (DTMF) signal corresponding thereto (step 220).

On the contrary, if there is no dial input even after the predetermined time set in steps 212 and 214, the microprocessor 13 determines that the unnecessary auto talk function is unnecessary and transmits data indicating that the trunk line loops off through the wireless transceiver 15. Then turn off the telephone loop of the cordless phone (step 216).

As described above, according to the present invention, if there is no dial input for a predetermined time set when the auto talk function is inadvertently performed by the user, the telephone loop is automatically turned off, thereby preventing unnecessary occupation of the curved line.

Claims (1)

A method of automatically forming a telephone loop when a portable device of a wireless telephone is detached from a charging station, the method comprising: detecting that the portable device is disconnected from the charging station without a ring signal input; When the portable device is disconnected from the charging station, forming a telephone loop of the cordless telephone and starting counting to determine whether there is a dial input within a set time; Determining a dial input within the set time, and automatically turning off the telephone loop of the wireless telephone when there is no input; If there is a dial input within the set time, generating, transmitting, and performing a call corresponding to the dialed DTMF; And turning on the telephone loop until the hook-on mode is set when the portable device is disconnected from the charging station in the state where the ring signal is input.