KR20010011061A - Method for selecting broadcasting channel by regional groups in a television phone - Google Patents

Abstract

PURPOSE: A method for tuning in channel according to areas in a TV telephone is provided to store TV channels in the TV telephone according to areas and to tune in a channel of an area by channel up/down keys, when a user moves to the area and sets up a local broadcast channel mode, so as to prevent the user from scanning all the channels when the user selects one channel, to quickly tune in the selected channel. CONSTITUTION: An MSP(Mobile Station Processor) registers channel numbers of each broadcasting station according to areas. The MSP sets up an area for receiving a TV signal. The MSP turns on a TV telephone, to make a user select a required broadcast according to an inputted channel up or down key while watching TV. The step of registering the channel numbers comprises as follows. The MSP selects a TV mode in a main menu. The MSP displays a TV function selecting menu in the selected TV mode. If a channel registering mode is selected according to areas from the TV function selecting menu, the MSP displays inputted menus of each broadcasting channel number. The MSP inputs channel numbers of broadcasting stations corresponding to the inputted menus, and registers the channel numbers.

Description

Channel selection method by region on TV {METHOD FOR SELECTING BROADCASTING CHANNEL BY REGIONAL GROUPS IN A TELEVISION PHONE}

The present invention relates to a channel channel selection method for each region in a mobile TV (TV TELEPHONE), and in particular, the TV channel for each region after storing the TV channel in the local area when the channel selection upkey or channel selection It relates to a regional channel tuning method of tuning a local broadcast by a selection down key.

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, in addition to the voice transmission / reception function, a portable hybrid wireless communication terminal capable of watching TV has been developed, and since the portable hybrid wireless communication terminal is used while moving to various regions, the broadcasting channel number is not limited to the same broadcasting station when watching TV. Since it is different from each other in order to select the desired channel by scanning the channel one by one to select the desired broadcast channel because it is inconvenient to take a long time to tune the broadcast channel.

Therefore, an object of the present invention is to input each TV broadcasting channel number of the region where the user is located by using a portable TV to solve the above problems, each time the channel selection up and down key is pressed without scanning each time during channel selection The present invention provides a channel channel selection method for allowing a broadcast channel to be tuned.

In order to achieve the above object, the present invention stores a TV broadcasting channel for each region in the TV, moves to the corresponding region, sets a local broadcasting channel mode, and corresponds to the channel selection up key or channel selection down key in the set region. Characterized in tuning the local broadcast.

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

2 is a control flowchart for registering a TV broadcasting channel for each region according to an exemplary embodiment of the present invention.

3 is a control flow diagram for setting a region for tuning a broadcast channel in a mobile phone according to an embodiment of the present invention;

4 is a control flowchart for tuning a broadcast channel of a desired area 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. And a synchronization signal (Sync) of the video signal to the character insertion signal generator (28). 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. The character insertion signal generator 28 generates a character insertion signal that counts the synchronization signal and generates a character insertion signal when the counting value is a preset value. That is, the character insertion signal generator 28 compares a counter for counting a horizontal synchronization signal therein with a memory in which a position value of a horizontal line is stored, and compares the value of the counter with an output value of the memory when the horizontal synchronization signal is equal. Comprising a comparator for generating a character insertion control signal activated up to a period of time to generate a character insertion control signal of a certain section in the period of each field or frame.

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, the analog audio signal input from the microphone MIC is converted into a CDMA digital signal, and the reverse channel is transmitted 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 registering a TV broadcasting channel for each region according to an embodiment of the present invention.

3 is a control flowchart for setting a region for tuning a broadcast channel in a mobile phone according to an embodiment of the present invention.

4 is a control flowchart for tuning a broadcast channel of a desired area according to an embodiment of the present invention.

1 to 4, the operation of the preferred embodiment of the present invention will be described in detail.

First, an operation of registering a TV broadcasting channel for each region in a mobile phone will be described with reference to the flowchart of FIG. 2. When a user presses a main menu key, various sub-menus are displayed on the TFT-LCD 46. 32, the MSP 30 displays a menu for selecting a TV mode function as shown in Table 1 below.

TV MODE 1.Register Channel by Region 2.Select Broadcast Area 3.

At this time, the user checks the menu displayed on the TFT-LCD 46 and then presses the number key 1 of the keypad 32 to register the broadcasting channel for each region. In step 103, the MSP 30 selects the region-specific channel from the keypad 32. If the registration key (e.g., the 1st key) is pressed and the channel registration key for each region is not input, go to step 111 to perform the corresponding function according to the key input. However, when the channel registration key for each region is input, the process proceeds to step 104 so that the MSP 30 displays the region selection menu on the TFT-LCD 46 as shown in Table 2 below.

1. Seoul Gyeonggi 2. Incheon 3. Chungjeong 4. Gangwon 5. Jeolla 6. Gyeongsang

At this time, the user checks the menu displayed on the TFT-LCD 46 and then presses a numeric key on the keypad 32 to select a region. For example, if the user is located in Seoul, the numeric key 1 is pressed. Then, in step 103, the MSP 30 checks whether the region selection key (e.g., the 1st key) is input from the keypad 32, and returns to step 104 if the region selection key is not input, and returns to step 106 if the region selection key is input. Proceed. In step 106, the MSP 30 displays the local broadcasting channel number input menu on the TFT-LCD 46 as shown in Table 3 below.

1.BSS: 1.KBS1: 2.KBS2: 3.MBC: 4 .. 5. 6.

At this time, the user checks the menu displayed on the TFT-LCD 46 and sequentially inputs broadcast channel numbers such as SBS, KBS1, KBS2, and MBC. Then, in step 107, the MSP 30 displays each broadcasting channel number of the Seoul area input from the keypad 32 on the TFT-LCD 46 as shown in Table 4 below.

SBS: 06 1.KBS1: 09 2.KBS2: 07 3.MBC: 11 4. 5. 6.

After inputting the broadcast channel number, the MSP 30 checks whether the confirmation key is input from the keypad 32 in step 108 and proceeds to step 109 when the confirmation key is input. In step 109, the MSP 30 stores each of the input broadcast channel numbers in a memory and completes registration of the broadcast channel numbers of the Seowol region.

In this way, the operation of registering the broadcasting channel number for each region and setting the broadcasting channel mode of the moved region will be described with reference to FIG. 3. When the user presses the main menu key, various operations are performed on the TFT-LCD 46. The submenu is displayed. If the TV mode is selected through the keypad 32 in step 201, the MSP 30 displays a menu for selecting a TV mode function as shown in Table 1 above.

At this time, the user checks the menu displayed on the TFT-LCD 46 and then presses the numeric key 2 of the keypad 32 to select a region. In step 203, the MSP 30 selects the broadcasting region from the keypad 32. If the broadcasting area selection key is not inputted, the process returns to step 202. If the broadcasting area selection key is inputted, the MSP 30 displays the region selection menu as shown in Table 2 above. It is displayed on the TFT-LCD 46 as well. Then, if the user presses the corresponding region selection key, for example, the Seoul region selection key (for example, the 1st key), the MSP 30 checks whether the region selection key is input in step 205 and selects the region selection key, for example the 1st key. If is input, go to step 206. In step 206, the MSP 30 sets to the broadcasting channel mode of the Seoul area and ends.

As described above, the operation of setting the Seoul regional broadcasting channel and selecting the TV as the TV mode to tune the broadcasting channel in the Seoul region by the up and down keys will be described with reference to FIG. 4. If the TV is turned on, the process proceeds to step 302. In step 302, the MSP 302 displays the channel that has already been tuned to the TFT-LCD 46, and proceeds to step 303. In step 303, the MSP 30 checks whether the local broadcast channel mode is set. If the local broadcast channel mode is not set, the MSP 30 proceeds to step 304. In step 304, the MSP 30 inputs a channel up or down key input from the keypad 32, scans one channel, selects a desired channel, and displays the desired channel on the TFT-LCD 46. For example, if the currently displayed broadcast is KBS1 and the up key is pressed, the channel number is displayed as 10. At this time, the terrevision broadcast is not displayed on the screen. Then, if the up key is pressed again, the channel number 11 is selected. Receive MBC broadcast. However, if the local broadcasting channel mode is set, the process proceeds to step 305 and the MSP 30 checks whether the channel selection up key is input, and proceeds to step 306 when the channel selection up key is input. In step 306, the MSP 30 selects the next channel currently tuned to display the broadcast screen on the TFT-LCD 46. However, if the channel select up key is not input, the process proceeds to step 307 and the MSP 30 checks whether the channel select down key is input and proceeds to step 308 when the channel select down key is input. In step 308, the MSP 30 selects the currently tuned previous channel to display the broadcast screen on the TFT-LCD 46. Each time the up or down key is pressed, the registered broadcast channel is sequentially tuned. For example, if the broadcast currently displayed on the screen is KBS1, each press of the broadcast selection up key selects the sequence MBC → SBS → KBS1, or each press of the down key selects the sequence KBS2 → SBS → MBC.

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, according to the present invention, when the local TV channel is stored in the TV, the local broadcasting channel is tuned by the channel selection up key or the channel selection down key when the local broadcasting channel mode is set in the corresponding region. Selecting a channel does not scan one by one, so there is an advantage in that the channel can be tuned quickly.

Claims (7)

In the local channel selection method in the TV, Registering the channel number of each broadcasting station by region; Registering a broadcasting channel number for each region and setting a region for receiving a television; When the TV is turned on and the TV is turned on after the reception area is set, the channel selection method for each region in the TV, characterized in that the process of tuning the desired broadcast according to the channel selection up or down key input. The method of claim 1, wherein the broadcasting channel number registration process for each region comprises: Selecting TV mode from the main menu, Displaying a TV function selection menu when selecting the TV mode; Displaying a menu for selecting a region when selecting a channel registration mode for each region among the displayed TV function selection menus; Displaying each broadcasting channel number input menu when selecting a corresponding region from the displayed region selection menu; And channel registration of the broadcasting station corresponding to the broadcasting channel number input menu. The method of claim 2, wherein the receiving area setting process comprises: Selecting TV mode from the main menu, Displaying a TV function selection menu when selecting the TV mode; Displaying a menu for selecting a region when a broadcasting region selection key is input among the displayed TV function selection menu; Channel selecting method for each region in the TV, characterized in that the process of setting the receiving area when selecting a corresponding region from the displayed region selection menu. The method of claim 3, wherein the broadcast tuning process, The process of displaying the channel broadcast on the screen when the TV is turned on; Detecting whether a local broadcast channel mode is set while the broadcast is displayed on a screen; When the local broadcast channel mode is set, channel selection method for each region in the TV characterized in that the process of tuning the next channel or the previous channel currently tuned in accordance with the up or down key input. The method of claim 4, wherein the broadcast tuning process, When the local broadcasting channel mode is not set, the channel tuning method according to the TV characterized in that it further comprises the step of scanning by selecting the next channel or the previous channel currently tuned in accordance with the up or down key input. In the local channel selection method in the TV, Selecting the channel registration mode by region by selecting TV mode in the main menu, Selecting a channel registration mode for each region and then selecting a corresponding region to input each broadcasting channel number; Selecting a broadcasting mode by selecting a TV mode from the main menu; Setting a region to receive a broadcast after selecting the broadcast region selection mode; Setting the reception area and then turning on the TV to display the channel broadcast on the screen; The channel selection method for each region in the TV, characterized in that the process of tuning to the next channel or the next channel currently tuned in accordance with the up or down key input while the broadcast screen is displayed. The method of claim 6, wherein the receiving area setting process comprises: Selecting TV mode from the main menu, Displaying a TV function selection menu when selecting the TV mode; Displaying a menu for selecting a region when a broadcasting region selection key is input among the displayed TV function selection menu; Channel selecting method for each region in the TV, characterized in that the process of setting the receiving area when selecting a corresponding region from the displayed region selection menu.