KR19980073394A - Status Display Circuit and Method in Wireless Telephones - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

Cordless phone

I. The technical problem that the invention is trying to solve

Displays the status of portable and fixed device usage in cordless phones.

All. Summary of the Solution of the Invention

When the call key is input from the portable device, the state of the fixing device is detected and a message corresponding to the state of the fixing device is output. When the call key is input from the fixing device, the state of the portable device is detected by the state of the portable device. Outputs a message corresponding to.

la. Important uses of the invention

It is possible to indicate whether or not the radiotelephone is used between a fixed device and a portable device.

Description

Status Display Circuit and Method in Wireless Telephones

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit and a method for displaying a use state in a radiotelephone, and more particularly, to a circuit and a method for displaying a use state between a fixed device and a portable device in a radiotelephone.

Typically, a radiotelephone consists of a fixed device and a portable device, and when the user is busy using the fixed device or one of the mobile devices, another user uses the fixed device or another device that is not on the mobile device. I can't make calls.

In order to solve this problem, a conventional radiotelephone uses a fixed device, but when a portable device is to be used, an alarm sound is transmitted to the portable device for a predetermined time, and the standby state is switched. On the other hand, when the portable device is being used and the fixed device is to be used, the alarm device emits a predetermined sound for a predetermined time and switches to the standby state.

In other words, if the user is on the phone using the fixed device and another user wants to talk on the mobile device, it indicates that the user cannot make a call to the mobile device. That is, when the fixed device is in a call and a call key is input from the portable device, the portable device sends a predetermined alarm sound to indicate that the fixed device is in a call. On the other hand, if the user is on the phone using a mobile device and another user wants to talk using the device, it indicates that the user cannot make a call to the device. That is, when the portable device is in a call and a numeric key for making a call in the fixed device is input, the fixed device sends an alarm sound to indicate that the portable device is in a call.

If one of the fixed device or the portable device is being used in the conventional radiotelephone, when the alarm sound is transmitted, the user may not be able to grasp the exact state of use by the alarm sound.

Accordingly, it is an object of the present invention to provide a circuit and method for displaying a use state in a wireless telephone.

Another object of the present invention is to provide a circuit and a method for displaying a mutual use state of a stationary device and a portable device of a radiotelephone.

It is still another object of the present invention to provide a circuit and a method for transmitting a busy tone by detecting a busy state between a fixed device and a portable device in a wireless telephone.

The present invention for achieving the above object is to detect the state of the fixing device when the call key is input from the portable device of the wireless telephone to output a message corresponding to the state of the fixing device, and if the call key is input from the fixing device And detecting a state of the portable device and outputting a message corresponding to the state of the portable device.

1 is a view showing a schematic configuration of a fixing device of a radiotelephone to which the present invention is applied.

2 is a view showing a schematic configuration of a portable device of a radiotelephone to which the present invention is applied;

3 is a diagram illustrating a process of displaying a use state of a wireless telephone according to an embodiment of the present invention;

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a schematic configuration of a fixing device for a radiotelephone according to the present invention, which includes a control unit 100, a memory 101, a key input unit 102, a display unit 103, a ring detection unit 104, a relay 105, a call circuit unit 106, and a DTMF generation unit. 107, DTMF receiver 108, tone generator 109, radio 110, transmitter 111, receiver 112, and speaker 113.

Referring to Figure 1 will be described the operation of the fixing device of the radiotelephone according to the present invention. The control unit 100 is a microprocessor and controls the overall operation of the wireless telephone according to the present invention. The memory 101 stores programs and data for controlling the operation of the radiotelephone according to the present invention. The key input unit 102 includes keys for setting various functions and modes and numeric keys for performing a dialing function, and outputs key data corresponding to a key pressed by the user to the controller 100. The display unit 103 may be implemented as an LCD (Liquid Crystal Display), and displays the state of the answering machine according to the present invention under the control of the control unit 100. The ring detector 104 is connected to the telephone line and detects a ring signal input to the telephone line in an on-hook state and notifies the controller 100 that the call is received. The relay 105 includes a hook switch, and performs switching to form and block a call path between the telephone line and the wireless telephone under the control of the controller 100. The call circuit unit 106 is a voice circuit and is connected between the relay 105, the talk unit 111, and the receiver 112, and processes various tone signals and voice signals transmitted and received through the telephone line. The DTMF generation unit 107 is connected between the control unit 100 and the call circuit unit 106, converts the data output from the control unit 100 into a DTMF (Dual Tone Multi-Frequency) signal and outputs it to the call circuit unit 106. The DTMF receiving unit 108 is connected between the call circuit unit 106 and the control unit 100, converts the DTMF signal output from the call circuit unit 106 into digital data and outputs the digital data to the control unit 100. The tone generator 109 generates a predetermined tone signal under the control of the controller 100 and outputs the tone signal to the speaker 113 or transmits it to the wireless unit 110. The wireless unit 110 is connected to the call circuit unit 106 and processes the RF signal to transmit and receive the RF signal through the antenna. The transmitter 111 and the receiver 112 are connected to the call circuit 106 and may be a handset.

2 is a diagram showing a schematic configuration of a portable device of a wireless telephone to which the present invention is applied, and includes a control unit 200, a memory 201, a key input unit 202, a display unit 203, a wireless unit 210, a transmitter 220, a microphone 221, a receiver 230, and a speaker. It consists of 231.

Referring to Figure 2 will be described the operation of the portable device of the wireless telephone according to the present invention. The control unit 200 controls the overall operation of the portable telephone apparatus, and incorporates a tone generating unit for generating a ringtone sound according to the present invention. The memory 201 stores a program and data for operating the portable device, and stores data generated during the execution of the program. The key input unit 202 includes a numeric key and a plurality of function keys. When the user presses a predetermined key, the key input unit 202 outputs a signal corresponding to the control unit 200. The display unit 203 may be implemented as a liquid crystal display and displays the state of the wireless telephone according to the present invention under the control of the controller 200. The radio unit 210 receives a signal transmitted from the fixing device through an antenna and transmits the signal to the receiver 230, and receives a voice signal from the transmitter 220 and transmits the signal through the antenna. The transmitter 220 transmits the voice signal input from the micro221 to the radio 210 under the control of the controller 200. The receiver 230 outputs a voice signal received from the wireless unit 210 to the speaker 231 under the control of the controller 200.

3 is a diagram illustrating a process of displaying a use state in a wireless telephone according to an embodiment of the present invention, and outputs a message according to a state between a fixed device and a portable device.

1 to 3, a method of displaying a use state between a fixed device and a portable device in a wireless telephone according to an embodiment of the present invention will be described.

First, a method of displaying the state of the portable device in the fixed device when the portable device is in use in a wireless telephone is as follows. In step 301, the control unit 100 of the fixing apparatus receives key data from the key input unit 102 and determines whether a call key is input. When the call key is input, in step 302, the control unit 100 of the fixed device transmits data on a call attempt through the wireless unit 110 to the portable device, and determines whether the call is in progress using the data transmitted from the portable device. If the portable device is not in a call state as data received in response to the data on the call attempt from the portable device, the control unit 100 of the fixed device outputs a message indicating the available state of the call in step 303. That is, the control unit 100 of the fixing device transmits a signal informing the call availability state to the speaker 113 or outputs a message informing the call availability state to the display unit 103. In contrast, when the portable device is in a call state, in step 304, the controller 100 of the fixed device receives data corresponding to the call state from the portable device, and controls a tone generator 109 to inform a call state. Produces a signal such as In step 305, the control unit 100 of the fixing device transmits the signal generated by the tone generator 109 to the speaker 113, and outputs a message indicating that the call is in progress to the display unit 103. Therefore, the user who wants to use the fixed device can hear the call sound transmitted to the speaker 113 and can confirm that another user is talking through the portable device.

On the other hand, when a fixing device is in use in a wireless telephone, a method of displaying the state of the fixing device in a portable device will be described. In step 301, the controller 200 of the portable apparatus receives key data from the key input unit 202, and determines whether a call key is input. When the call key is input, in step 302, the controller 200 of the portable device transmits data on a call attempt through the wireless unit 210 to the fixed device, and determines whether the call is in progress using the data transmitted from the fixed device. If the fixed device is not in a call state as the data received in response to the data for the call attempt from the fixed device, the controller 200 of the portable device outputs a message indicating the available state of the call in step 303. That is, the controller 200 transmits a signal informing of the available state to the speaker 231 or outputs a message informing of the available state to the display unit 203. In contrast, when the fixed device is in a call state, in step 304, the controller 200 of the portable device receives data corresponding to the call state from the fixed device and generates a ring tone from the built-in tone generator. In addition, although not shown in FIG. 2, a tone generating unit may be further provided to generate a flower sound under the control of the controller 200. In addition, the portable device may generate a call tone indicating that the call is in progress, or receive a call tone generated by the tone generator 109 of the fixed device. In step 305, the controller 200 of the portable apparatus transmits the generated talk sound to the speaker 231 and outputs a message indicating that the call is in progress to the display unit 203. Therefore, the user who wants to use the portable device can hear the call sound transmitted to the speaker 231 and can confirm that another user is making a call through the fixing device.

As described above, in the present invention, the user can easily use the fixed device or the portable device of the wireless phone by generating a call tone or outputting a message informing the call state between the fixed device and the portable device in the wireless phone. It can be seen.

Claims (7)

In a radiotelephone having a fixed device and a portable device, a status display circuit is used. A portable device which transmits call attempt data to the fixed device when a call key is input, and generates and outputs a busy tone when the fixed device is in a call; And a fixed device which transmits call attempt data to the portable device when a predetermined dial key is input and generates and outputs a busy tone when the portable device is busy. The method of claim 1, And the fixing device includes a tone generating unit for generating a busy tone. The method of claim 1, And the portable device receives a call sound generated from the fixed device. The method of claim 1, And the portable device further comprises a tone generating unit for generating the ring tone. A circuit for displaying the use state between the fixing device and the portable device in a radiotelephone having a fixing device and a portable device, When a call key is input from the portable device, a state of the fixing device is detected and a message corresponding to the state of the fixing device is output. And detecting a state of the portable device when the call key is input from the fixed device, and outputting a message corresponding to the state of the portable device. A method for displaying the mutual use state between the fixed device and the portable device in a radiotelephone having a fixed device and a portable device, Detecting that a call key is input from the fixed device, detecting whether the mobile device is busy; And generating and transmitting a tone indicating a call state of the mobile device when the mobile device is busy. The method of claim 6, Detecting a call key input from the portable device, detecting whether the fixed device is busy; And generating and transmitting a tone indicating a call state of the fixed device when the fixed device is in a call.