KR20010016744A - Method for displying infomation in a television phone - Google Patents

Abstract

PURPOSE: A method for displaying information in a TV phone is provided to display information about telephone number on broadcasting scene superposition in the case a user telephones while watching TV broadcasting using a portable TV phone. The method also displays information about telephone number or terminating state or icon on TV broadcasting scene superposition in the case of calling while the user watches TV broadcasting using the portable TV phone. CONSTITUTION: A MSP(mobile station processor) checks whether a TV is turned on or not(101). If the TV is turned on, the MSP displays a channel tuned previously on TV screen corresponding to TFT-LCD(102). The MSP checks whether a send key is inputted from a key pad for calling a telephone(103). If the send key is inputted, the MSP reads telephone number stored in a dial buffer and outputs corresponding ODD generation controlling signal to ODD(104). The MSP outputs by superposing TV image signal output unit from a NTSC decoder and ODD signal corresponding to telephone number stored in the dial buffer by controlling a MUX(multiplexes)(105). If the send key is not inputted in the above checking process, the MSP checks whether call incoming signal is detected(106). If the call incoming signal is not detected, this process returns to the above displaying process. If the call incoming signal is detected, the MSP checks whether a caller number is detected(107). If a caller number is not detected, the MSP generates ODD signal corresponding to call incoming signal or icon by controlling ODD(112).

Description

How to display information on TV {METHOD FOR DISPLYING INFOMATION IN A TELEVISION PHONE}

The present invention relates to a method of displaying information in a portable television (TV TELEPHONE), and more particularly to a method of displaying a phone number or incoming call notification information and the like overlapping with a TV screen while watching a TV broadcast using the portable television. It is about.

Recently, as information providing networks have been rapidly developed, there is a demand for the development of a composite wireless communication terminal in which various functions are added in addition to a communication terminal for delivering voice. Therefore, a portable TV phone that can watch TV in addition to the voice transmission / reception function has been developed among the complex wireless communication terminals, and when the user makes a call while watching TV, the portable TV phone receives the caller's number or the caller's call. Information about the phone number or incoming call status or icons could not be displayed on the screen.

Accordingly, an object of the present invention is to provide a method of superimposing information on a dialed telephone number on a TV broadcast screen when making a call while watching a TV broadcast using a portable TV.

Another object of the present invention is to provide a method of superimposing and displaying information on a caller's telephone number or incoming status or icon on a TV broadcast screen when a call is received while watching a TV broadcast using a portable TV. .

In order to achieve the above object, in the method of displaying a telephone number while watching a television in a television of the present invention, it is detected whether a dial start key is input when the TV is turned on and watching a television broadcast. The telephone number is superimposed on the TV screen, and when the incoming call signal is detected without the dial start key being input, the calling party number is detected, and the detected calling party number is superimposed on the TV screen.

1 is a block diagram of a TV according to an embodiment of the present invention

2 is a control flowchart for displaying a telephone number 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. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description, numerous specific details, such as specific process flows, are set forth in order to provide a more thorough understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram of a television according to an embodiment of the present invention.

In Fig. 1, reference numerals 16, 30, and 32 are each a mobile radio frequency unit (MRFU), a mobile station processor (MSP) 30, and keypads 32 in a mobile phone module. Such circuits are configured by further adding the configurations for carrying out the present invention to circuits applied in a conventional digital cellular phone, for example, a CDMA cellular phone, which will be apparently understood by the following description. will be.

18, 34, 36, 38, and 40 are TV units, on-screen displays (OSDs), multiplexers (hereinafter, referred to as "MUXs"), TV audio signal processing units, and display devices. And the TV audio signal processor 38. The antenna 12 for transmitting radio waves to the air or receiving radio waves in the air receives the radio waves in the air and is connected to the band reception filter 14 and the MRFU. The band reception filter 14 performs band pass filtering on only the frequencies of the TV broadcast frequency bands among the received frequencies and inputs them to the TV unit 18 connected to the output terminal.

In this state, when the mode of the TV phone is set to the TV mode, the MSP 30 supplies the power control signal PW to the TV unit 18 and the TV audio signal processing unit 38 to enable operation. In addition, the MSP 30 inputs a channel selection signal input from the keypad 32 or a channel line signal CH-S for selecting a channel that has been previously viewed, in a phase synchronized loop in the TV unit 18. (Hereinafter, referred to as PLL ") 22. At this time, the PLL 20 oscillates a corresponding tuning frequency (SEL-F) to provide to the TV tuner 20, and the TV tuner 20 Is a downconverted video intermediate frequency (VIF) and an audio intermediate frequency (AIF) by mixing the tuning frequency (SEL-F) and the received signal through the band reception filter 14. Outputs

An image demodulator 24 connected to the output of the TV tuner 20 demodulates the video intermediate frequency signal VIF to convert a composite video signal Vcomp into a NTSC decoder connected to an output node. (26). The NTSC decoder 26 decodes the composite video signal Vcomp and provides it to the A terminal of the MUX 36 as a color signal of R, G, and B.

Therefore, the TV unit 18 configured as described above is operated by activating the power control signal PW from the MSP 30 to output the video and audio signals of the broadcast channel according to the channel selection signal and to receive the call at the same time. It can be seen that the section control signal for inserting the message is generated.

On the other hand, the MUX 36 selects the R, G, B video signals output from the NTSC decoder 26 by the video selection signal SEL-M output from the MSP 30 in the low state in the TV mode. Input is made to an analog to digital converter (ADC) 42 in the display device 40 connected to the output node. The ADC 42 digitally converts the input R, G, and B video signals and inputs them to the timing controller 44. The timing controller 44 includes a synchronous signal generator for generating a pseudo vertical synchronous signal and a pseudo horizontal synchronous signal to drive the TFT-LCD 46 connected to the output terminal by the input image data so that the screen is displayed. In addition, the TV audio signal processing unit 38, which is operated by the power control signal PW output from the MSP 30, processes the voice intermediate frequency signal AIF output from the TV tuner 20 to broadcast TV. The audio signal of the program is reproduced and output through the speaker SP.

Accordingly, the TV unit 18, the TV audio signal processor 38, and the display device 40 as shown in FIG. 1 receive the video and audio of the TV broadcast program of channel selection by controlling the TV mode of the MSP 30. It can be seen that the playback. During the operation, when the user operates the channel selection key located on the keypad 32 to select the desired channel, the MSP 30 changes the channel selection signal CH-S to output and output the PLL 22. The tuning frequency is also changed to change the channel of the TV tuner 20.

On the other hand, MRFU (16) connected to the antenna 12 receives the radio wave of the transmission and reception frequency band of the portable telephone, converts the analog signal into a digital signal, and converts the digital signal into an analog signal and then amplifies the antenna Radio waves through (12). The MRFU 16 can be easily implemented by combining a baseband analog circuit and an RF part in a typical mobile phone. For example, BBA2.X (Q5312CDMA) produced by QUALCOMM Corporation as a BBA circuit that converts a CDMA wireless transmission / reception part and an analog signal into CDMA digital data, and converts CDMA digital data into an analog signal. It can be made by combining one chip and RF unit.

The MSP 30 connected to the MRFU 16 analyzes a command provided from the keypad 32 and generates control signals corresponding thereto. In addition, the MSP 30 analyzes the received forward channel data message through demodulation, deinterleaving and decoding of the digital signal output from the MRFU 16, signal processing and vocoding of the data, and the analog data from the received data. Has a function of reproducing an audio signal and its inverse function. For example, the reproduced analog audio signal is output to the speaker SP, and the analog audio signal input from the microphone MIC is converted into a CDMA digital signal to reverse the channel through the MRFU 16. Has the function to transmit. In addition, when the received forward channel data message is an incoming call related message, the MSP 30 analyzes and controls the incoming alarm mode set in the internal memory to alarm the incoming call state to the user watching TV. The MSP 30 may use the "MSM3300" supplied in the form of chips from QUALCOMM Inc., located in the United States.

The OSD 34 connected to the output node of the MSP 30 generates an OSD image signal corresponding to the character generation control data output from the MSP 30 to another input terminal B of the MUX 36 described above. to provide. The MUX 36 selects an image input to the input terminal A by the image selection signal SEL-M output from the MSP 30 in the low state in the TV mode, and connects the ADC 42 to the output terminal. To be supplied.

2 is a control flowchart for displaying a telephone number according to an embodiment of the present invention.

1 to 2, the operation of the preferred embodiment of the present invention will be described in detail.

In step 101, the MSP 30 checks whether the TV is turned on and proceeds to step 102 when the TV is turned on. In step 102, the MSP 302 displays a TV screen corresponding to the TFT-LCD 46 to view a channel that has already been tuned. When the user makes a phone call while watching a TV broadcast, the user enters a phone number through the keypad 32 or dials a stored phone number, and the phone number is stored in the dial buffer. If a call is received while watching a TV broadcast, the caller receives the caller number and stores it in the memory. Then, in step 103, the MSP 30 checks whether a send key is input from the keypad 32 to make a call, and then proceeds to step 104 when the send key is input. In step 104, the MSP 30 reads the telephone number stored in the dial buffer and outputs a corresponding OSD generation control signal to the OSD 34. In step 105, the MSP 30 controls the MXU 36 to overlap the TV video signal output from the NTSC decoder 26 with the OSD signal corresponding to the telephone number stored in the dial buffer generated from the OSD 34. Do it. The TV video signal superimposed with the OSD signal output from the MUX 36 is displayed on the TFT-LCD 46 through the ADC 42 and the timing controller 44.

However, if the send key is not input in step 103, the process proceeds to step 106. If the incoming signal is not detected, the MSP 30 returns to step 102. If the incoming signal is not detected, the MSP 30 proceeds to step 106. In step 107, the MSP 30 checks whether the calling party number is detected. If the calling party number is not detected, the MSP 30 proceeds to step 112. In step 112, the MSP 30 controls the OSD 34 to generate an OSD signal corresponding to an incoming signal or an icon. In step 113, the MSP 30 controls the MXU 36 to superimpose the TV video signal output from the NTSC decoder 26 and the OSD signal corresponding to an incoming call state or icon generated from the OSD 34. . The TV video signal superimposed with the OSD signal output from the MUX 36 is displayed on the TFT-LCD 46 through the ADC 42 and the timing controller 44. However, if the calling party number is detected in step 107, in step 108, the MSP 30 controls the OSD 34 to generate an OSD signal corresponding to the calling party number, and proceeds to step 109. In step 109, the MSP 30 controls the MXU 36 to superimpose and output the TV video signal output from the NTSC decoder 26 and the OSD signal corresponding to the calling party number generated from the OSD 34. The TV video signal superimposed with the OSD signal output from the MUX 36 is displayed on the TFT-LCD 46 through the ADC 42 and the timing controller 44. Then, in step 110, the MSP 30 checks whether the call formation key is input, and when the call formation key is input, the flow proceeds to step 111 to turn off the TV sound, connect the phone call, and terminate the operation.

Also, in one embodiment of the present invention, when dialing a phone while watching a television, the dialed telephone number is displayed to be superimposed on the TV screen, or when a telephone is called while watching a television, an outgoing telephone number is detected and displayed to be superimposed on the TV screen. It is also possible to display the received short message on the TV screen when the short message is received without departing from the scope of the present invention.

On the other hand, in the detailed description of the present invention has been described with reference to specific embodiments, of course, various modifications are possible within the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention displays a dialed telephone number on a TV screen when making a call while watching TV on a TV, or detects a caller's telephone number or an incoming call state or icons when a call is received. Since it is displayed on, there is an advantage that can check the operation state of the mobile phone by the phone number or incoming state or icon provided from the phone even while watching TV.

Claims (5)

In the information display method on the TV, Detecting whether a dial start key is input when the TV is turned on and watching a television broadcast; And displaying the superimposed telephone number on the TV screen when the dial start key is input. The method of claim 1, Detecting the calling party number when the incoming call is detected without the dial start key being input; And displaying the detected caller ID on the TV screen. In the information display method on the TV, Detecting whether a dial start key is input when the TV is turned on and a desired broadcast is displayed on the screen; Generating an OSD signal corresponding to a number stored in a dial buffer when the dial start key is input; And displaying the OSD signal corresponding to the number stored in the generated dial buffer on the TV broadcasting screen to be displayed. The method of claim 3, Detecting the calling party number when the incoming call is detected without the dial start key being input; Generating an OSD signal corresponding to the detected calling party number; And displaying the OSD signal corresponding to the originating caller number on the TV broadcasting screen to be displayed. In the information display method on the TV, Detecting whether a short message is received when the TV is turned on and watching a television broadcast, Generating an OSD signal corresponding to a short message received when the short message is detected; And displaying the OSD signal corresponding to the generated short message on the TV screen.