KR970006780B1 - Radio telephone - Google Patents

Abstract

Apparatus for displaying dial tone seizing of a radio telephony handie including base, antenna, deplexer, receiving part, filter, IF signal processing part, mixer, amplifier, speaker, transmitting part, PLL, key pad and a memory, and a method thereof are provided, wherein the apparatus includes a microcomputer (34) for detecting dialtone, voice signal and operation state of a channel standby switch to produce an output for indicating call dialing and the channel standby state, a comparator (28) for detecting a voice signal input state to transmit the detecting result to the microcomputer (34), and an LED (40) and a buzzer (36) for indicating the call dialing and the standby state in the audio-video manner under the control of the microcomputer (34), so that users may precisely recognize the channel state of the radio telephony.

Description

Device for catching dial tone of wireless telephone handy

1 is a schematic configuration diagram showing a configuration of a radio telephone handy for realizing the present invention.

2 is a flow chart in accordance with the present invention.

Figure 3a is a schematic diagram showing the internal structure of the base of the radiotelephone in one embodiment of the conventional telephone, b is a schematic diagram showing the internal structure of the handy phone in one embodiment of the conventional telephone.

* Explanation of symbols for main parts of the drawings

12 antenna 14 deplexer

16: receiver 18: filter

20: IF signal processing section 22: mixer section

24: Amplifier 26: Speaker

28: comparator 30: transmitter

32: PLL 34: Micom

36: buzzer 38: key pad

40: LCD 42: memory

The present invention relates to a wireless telephone having a handy and a base, and more particularly, to capture a dial tone of a wireless telephone handyman capable of capturing and displaying a dial tone transmitted from a base to a handy after a telephone call is made to the wireless telephone. An apparatus and a method thereof are provided.

With the development of industrial technology and the development of communication media technology, telephones are used as necessities of life in homes, offices, and various offices that use computers to send and receive various information. Such phone operation is conventionally performed mechanically. Although the telephone call was made with the other party, as the hardware / software technology of the communication media including the telephone developed, the telephone function was diversified and advanced as it developed electronically.

In addition, by using a telephone connected to an external line established outside the home or office, the telephone call can be removed from the wired call method, and as described above, the baseline can be used to perform the wired call function using the base. A wireless telephone method has appeared to allow a telephone call wirelessly at a distance separated from the base by a predetermined distance.

In the conventional wireless telephone system employing such a wireless call method, the telephone circuit 110, the microcomputer 120, the memory 130, the antenna 140, and the RF transceiver 150 are illustrated in FIGS. ), A base composed of a PLL (160), a PLL (210), a microcomputer (220), an RF transmitter / receiver (230), an antenna (240), a speaker (250), a battery `` low '' level detector (260), A handyman composed of light emitting diodes 270 is provided.

As described above, when the incoming signal received from the outside is transmitted to the telephone circuit 110 through an external line in the conventional wireless telephone, the incoming signal is detected by the microcomputer 120 to drive the RF transmitter 150. Sending the incoming signal through the antenna 140, driving the speaker or buzzer not shown in the drawing to inform that the telephone is incoming, at this time, put the handset connected to the telephone circuit 110 when the hook switch operates the microcomputer 120 By the control of the RF transmission and reception unit 150 and the antenna 140, the transmission of the incoming signal that was transmitted to the handy stops and the external line is connected to the handset via the telephone circuit 110 to make a telephone call.

The base and the handyman connect wirelessly when the on / off switch of the handyman is operated to make a telephone call using the handyman whose incoming signal is applied to the antenna 240 through the base antenna 140 without lifting the handset configured in the base. Then, the voice signal is wirelessly transmitted and received between the base and the handyman through the antennas 140 and 240, wherein the voice signal is an external line of the base, the telephone circuit 110, the microcomputer 120, the RF transceiver 150, and the antenna. 140 and the handy antenna 240, RF transceiver 230, PLL 210, micom 220, not shown handset in the order, the transmission of the voice signal is made in the reverse order of the path.

The memory 130 connected to the microcomputer 120 of the base has a built-in melody, etc. to the other party's phone through an external line during a speed dial or holding, and the speaker 250 connected to the microcomputer 220 of the handyman receives an incoming signal to the handyman. When is applied, it outputs an incoming signal or notifies the operation state of the key when operating the key configured in the handy, and the battery `` low '' level detection unit 260 discharges the level of the battery mounted in the handy below the driving level The microcomputer 220 is detected and notified to drive the light emitting diode 270.

However, the operation of the base which recognizes the incoming signal received from the outside to the base of the wireless telephone in the wireless telephone which is configured and operated as described above is performed with the incoming signal being transmitted, but in the handy case when the incoming signal is transmitted later than the base. In such a case, the above-mentioned cases often occur even when a telephone call mode is set or a connection is made between the base and the outside when a telephone call is made using the handy and the base. In addition, in order to make a phone call, check the state of the telephone call system between the handyman and the base and make a phone call. At this time, there is a hassle of checking the telephone system state by using the handset of the handset.

The present invention has been made to solve the shortcomings in the conventional radiotelephone as described above, after the telephone call is made to the radiotelephone dial tone of the radiotelephone handyman to capture and display the dialing tone transmitted from the base to the handyman It is an object of the present invention to provide a capture display device and a method thereof.

The apparatus and method for capturing a dial tone of a wireless telephone handset according to the present invention for realizing the above object, in performing a telephone call wirelessly between a handy and a base, detects incoming signals and voice signal input from a base, and When the incoming signal and the voice signal is input, it is characterized by operating the LCD and the buzzer to inform it.

Hereinafter, the configuration of the present invention in more detail with reference to the accompanying drawings as follows.

As shown in FIG. 1, the present invention includes a base, an antenna 12, a deplexer 14, a receiver 16, a filter 18, an IF signal processor 20, a mixer 22, and an amplifier. 24. A radiotelephone comprising a handy composed of a speaker 26, a transmitter 30, a PLL 32, a keypad 38, and a memory 42, wherein incoming calls and voice signals are input and call waiting. A micom 34 that detects an operation state of a switch and outputs a control signal for informing a call reception and call waiting state; a comparator 28 for detecting a voice signal input state and informing the microcomputer 34; 34) is composed of an LED (40) and a buzzer (36) for visually and audibly displaying the incoming and the call waiting state.

2 is a flowchart of the present invention.

Referring to the effects of the present invention configured as described above are as follows.

When the incoming signal is applied from the base or the audio signal is applied, the antenna 12, the deplexer 14, the receiver 16, the filter 18, the IF signal processor 20, the mixer 22, the amplifier 24 The speaker 26 is outputted to the handset of the handyman, and the voice signal generated from the handyman is processed through the voice signal processor, not shown, to the base through the transmitter 30, the deflector 14, and the antenna 12. Will be output.

In addition, the incoming signal or the voice signal through the antenna 12 and the deplexer 14 is supplied to the microcomputer 34 and the LCD 40 or the buzzer 36 operates under the control of the microcomputer 3 which recognizes the radio signal. Will notify you that you are currently ringing or waiting. That is, when the incoming signal is applied through the receiver 16, the microcomputer 34 operates the LCD 40 and the buzzer 36 to inform the wireless telephone that the incoming signal has been received and the voice signal output from the amplifier 24. Is applied to one terminal (+) of the comparator 28 and when the comparator 28 is supplied to the microcomputer 34 with the output of the `` high '' level, the microcomputer 34 signals that the wireless telephone is in a call waiting state. By outputting to the LCD (40) or the buzzer (36) it informs that the wireless telephone is currently in the call waiting state.

As shown in FIG. 2, the operation of the microcomputer 34 for controlling the operation of the wireless telephone handy is described above. When the incoming signal is input while the incoming signal for making a telephone call is input, the LCD 40 and The buzzer 36 is operated to inform this. In this case, if the voice signal level output through the speaker 26 (handset) is detected and detected above a predetermined level, the LCD 40 and the buzzer 36 are operated at this time to notify the user.

Therefore, the user can know the call state of the wireless telephone through the LCD 40 and the buzzer 36 rather than the handset.

As described above, the present invention detects the incoming signal and the voice signal input from the base, and when the incoming signal and the voice signal are input, by operating the LCD and the buzzer to inform the user, the user accurately determines the call state of the wireless telephone. It can work.

Claims (2)

A wireless telephone comprising a base, an antenna, a deplexer, a receiver, a filter, an IF signal processor, a mixer, an amplifier, a speaker, a transmitter, a PLL, a keypad, a memory, and a handset composed of an incoming signal and a voice signal, A micom 34 that detects an operation state of a call waiting switch and outputs a control signal for informing a call reception and call waiting state; a comparator 28 for detecting a voice signal input state and informing it to the micom 34; Device for catching and displaying a dial tone of a wireless telephone handyman, comprising a LED (40) and a buzzer (36) for visually and audibly displaying the incoming and outgoing call state under the control of the microcomputer (34). In performing a telephone call wirelessly between the handyman and the base, an incoming signal and an audio signal input from the base are detected, and when the incoming signal and the audio signal are input, the LCD 40 and the buzzer 36 are operated to notify the user. Method for capturing and displaying a dial tone of a wireless telephone handy.