KR0175587B1 - Wireless telephone capable of displaying current time on a portable device and control method thereof - Google Patents

Abstract

[TECHNICAL FIELD OF THE INVENTION]

Cordless phone

[Technical Problems to be Solved by the Invention]

And displaying the current time so that the portable device can confirm the current time, and a control method thereof.

[Summary of the Invention]

The wireless telephone has a clock circuit and receives a predetermined control, converts the time data generated by the clock circuit into a radio signal, and transmits the radio signal to a fixed device, a display unit, and a user interface unit And generates a current time request signal in response to an input of the user interface unit, wirelessly transmits the current time request signal to the fixed device, processes time data received from the fixed device through the wireless link, and displays the current time on the display unit And a portable device.

[Important Application of the Invention]

It is used to allow the portable device to conveniently check the current time.

Description

Gate phone capable of displaying current time on a portable device and control method thereof

FIG. 1 is a configuration diagram of a digital wireless telephone portable device to which the present invention is applied; FIG.

FIG. 2 is a block diagram of a wireless telephone fixing device to which the present invention is applied; FIG.

FIG. 3 is a flow chart illustrating a current time display process of a portable device of a wireless telephone according to an exemplary embodiment of the present invention;

DESCRIPTION OF THE REFERENCE NUMERALS

21: portable device control unit 22: portable device RF transmission unit

23: Portable device duplexer 24: Portable device RF receiver

25: portable device frequency synthesizer 31: fixed device controller

32: Fixture device RF transmitter 33: Fixture device duplexer

34: Fixing device RF receiving part 35: Fixing device frequency synthesizing part

36: line interface unit 42: portable device time button

44: Fixture display part 46: Clock circuit

48: RAM

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time display device and method in a wireless telephone, and more particularly to a device for displaying the current time in a portable device and a control method thereof.

A cordless telephone is composed of a portable device and a fixing device. The fixed device is connected to the exchanger through a telephone line to perform a wired communication function, and the portable device forms a wireless link with the wireless unit of the fixed device to perform a wireless communication function.

The fixing device may display the current time when the display unit and the clock circuit are provided. Therefore, if you do not have a clock and want to know the current time, check the display of the handheld device.

However, due to the characteristics of wireless telephones, users often move only with portable devices. In other words, it is spaced a certain distance from the fixing device. At this time, if the user does not go to the place where the fixing device is directly installed, the current time can not be known.

Accordingly, it is an object of the present invention to provide an apparatus and a control method thereof for displaying a current time in a portable device.

In order to achieve the above object, the present invention provides a wireless telephone comprising: a fixed device having a clock circuit, which converts time data generated in the clock circuit into a radio signal and transmits the radio signal through a predetermined radio link; And generates a current time request signal in response to an input of the user interface unit, wirelessly transmits the current time request signal to the fixed device, processes time data received from the fixed device through the wireless link, And a portable device for displaying the current time on the display unit.

In order to accomplish the above object, a time display control method of a portable telephone of the present invention includes a display device and a user interface unit having a clock circuit in a fixed device and requesting display of a current time and a display unit, Transmits a command requesting the current time data to the fixed device, receives the current time data request command from the portable device, transmits the current time data to the portable device, And displays the current time data when the portable device receives the current time data from the fixing device.

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

In the drawings, the same reference numerals are used for the same reference numerals even though they are shown in different drawings. It will also be appreciated that the following description is provided to provide a more general understanding of the present invention, such as specific circuit components and the like, which may be practiced without these specific details, It will be obvious to those who have ordinary instructions. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a configuration diagram of a digital wireless telephone portable apparatus to which the present invention is applied.

The portable device controller 21 controls the overall operation of the portable device. The RF transmitter 22 modulates and frequency-converts the data output from the portable device controller 21 or the voice signal output from the microphone, and outputs the RF signal. The duplexer 23 separates the transmitted RF signal and the received RF signal. The RF receiver 24 frequency-converts and demodulates the received RF signal separated by the duplexer 23, outputs the voice signal to the sprinkler, and outputs the data to the portable device controller 21. The frequency synthesizer 25 generates a frequency for designating the transmission channel of the RF transmitter 22 and the reception channel of the RF receiver 23 under the control of the portable device controller 21. [

Further, the portable device has a user interface portion such as a button requesting time display. When the time display request button is input by the user, the portable device controller 21 senses the time display request button. The display unit 42 displays data, messages and current time related to the telephone call.

FIG. 2 is a configuration diagram of a wireless telephone fixing device to which the present invention is applied.

The fixing device control unit 31 controls the overall operation of the fixing device. The RF transmitter 32 modulates and frequency-converts the data output from the fixed device controller 31 or the voice signal output from the microphone and outputs the converted RF signal. The duplexer 33 separates the transmitted RF signal and the received RF signal. The RF receiver 34 frequency-converts and demodulates the received RF signal demultiplexed by the duplexer 33, outputs the voice signal as speech, and outputs data to the fixed device controller 31. Under the control of the fixed device controller 31, the frequency synthesizer 35 generates a frequency for designating the transmission channel of the RF transmitter 32 and the reception channel of the RF receiver 33. The line interface 36 is wired to the switching network of FIG. 1 and interfaces signals between the fixed device 31 and the control part of the switching network for connection with the switching network, and interfaces voice signals between the fixed device and the switching network.

The display unit 44 displays data, messages and current time related to the telephone call. As the display section 44, a liquid crystal display device is used. The clock circuit 46 has a known configuration for generating a current time data in units of hours, minutes and seconds by oscillating a crystal (not shown).

The current time data generated in the clock circuit 46 is stored in the RAM 48. [ The RF transmitter 32 modulates and frequency-converts the current time data read from the RAM 32, converts the time data into a radio signal, and transmits the radio signal to the air through the antenna to be transmitted to the portable device through a radio link established with the portable device do. The fixing device controller 31, the clock circuit 46, and the RAM 48 may be implemented as a one-chip microprocessor.

FIG. 3 is a flowchart illustrating a current time display process of the mobile phone of the present invention. The current time display process of the portable device according to an embodiment of the present invention will be described step by step with reference to the first and second figures.

In step (3a), the controller 21 of the portable device senses a time-table request input from the user, and proceeds to step (3b) to wirelessly transmit a signal requesting the current time data to the fixed device. The fixing device receives the current time data request signal from the portable device in step 3c and wirelessly transmits the current time data read from the RAM 48 in step 3d to the portable device. In step 3e, when the portable device receives the current time data from the fixing device, the RF receiver 24 demodulates and frequency-converts the current time data to the fixed device controller 31. Therefore, the fixation device control unit 31 receives and processes it in step (3f), and controls the display unit 50 to display the current time.

The present invention as described above has an advantage that the current time can be conveniently checked in a portable device.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

Claims (3)

A fixed device having a clock circuit and adapted to convert the time data generated in the clock circuit into a radio signal and to transmit the radio data through a predetermined radio link when the predetermined control is performed, a display unit and a user interface unit for requesting display of the current time, A portable device for generating a current time request signal in response to an input of a user interface unit and wirelessly transmitting the current time request signal to the fixed device and displaying the current time on the display unit by processing time data received from the fixed device via the wireless link, Wherein the wireless telephone comprises: The wireless telephone according to claim 1, wherein the display unit is a liquid crystal display device. A method for displaying time on a display device and a user interface for requesting display of a current time in a portable device of a wireless telephone having a clock circuit in a fixing device, the method comprising: A second step of transmitting a command requesting current time data to the portable device, a second step of receiving the current time data request command from the portable device, and transmitting current time data to the portable device, Wherein the portable device receives current time data from the fixing device, and the current time data comprises a third process.