KR0139229B1 - Apparatus and method for controlling satellite broadcasting of multi-television by using country code - Google Patents

Abstract

In the multi-television (NTSC / PAL / SECAM) capable multi-television system of the present invention, when a desired request request and a broadcast channel are selected in the OSD guide message on the screen using a predetermined country code, the broadcasting method of the corresponding country is automatically selected. The present invention is to provide a broadcast watching control apparatus and method for multi-television using a country code that is switched so that broadcasting can be easily viewed.

To this end, the present invention, in the multi-television capable of reproducing the broadcast signal based on any one of the three-broadcasting method (NTSC / PAL / SECAM method) set by the broadcast system setting means, broadcast viewing desired station and When the country designation mode is set by determining whether the country designation mode is set to facilitate the channel selection, the control means 28 controls the OSD processing unit 32 to provide a guide message for selecting a request for the broadcast viewing desired station. Display a message for requesting viewing channel selection when an arbitrary broadcast viewing desire station is selected in response to the announcement message, and then display a broadcast message of the selected corresponding country when a desired viewing channel is selected in response to the announcement message. It is possible to watch a broadcast by reproducing a broadcast signal of a selected channel while automatically switching in a manner.

Description

Broadcasting Control System and Method for Multi-television Using Country Code

1 is a block diagram of a multi-television broadcasting viewing control apparatus using a country code employed in the present invention;

2 is a diagram showing an example of the configuration of a remote controller employed in the control function setting section shown in FIG. 1;

3 is a flowchart illustrating a broadcasting viewing control method for a multi-television using a country code according to the present invention;

4A and 4B illustrate examples of a guide message displayed on a screen when a country mode is designated according to the present invention.

* Description of the symbols for the main parts of the drawings *

10 ---- tuner, 12 --- voice IF module,

14 --- voice signal processor, 16 --- voice signal amplifier,

18 --- video IF module, 20 --- broadcasting setting means,

20A --- subcarrier detection unit, 20B --- switching unit,

20C --- NTSC filter, 20D --- PAL filter,

20E --- SECAM filter, 22 --- video signal processor,

24 --- video signal amplifier, 26 --- control function setup,

28 --- control means, 30 --- memory section,

32 --- OSD processing unit.

The present invention relates to a multi-television broadcasting viewing control apparatus and method using a country code, in particular, multi-television capable of three-system (ie NTSC, PAL, SECAM system) broadcasting in the country using a predetermined country code The present invention relates to a multi-television broadcasting viewing control apparatus and method using a country code in which switching and channel tuning operations are performed in response to an OSD guide message displayed on a screen.

As is well known, the terrestrial broadcasting TV transmission system is classified into SYSTEM M, B / G, D / K, I, L, etc. according to the synchronization signal characteristics by CCIR REPORT, and also NTSC system and PAL system according to the color system. It is classified by SECAM method.

Therefore, the TV broadcast is combined with the TV color schemes of various countries in the world. For example, in the United States, Japan, Korea, etc., the NTSC-M system is adopted, and Western Europe such as Germany, Spain, Italy, Sweden, etc. The PAL-B / G method is adopted in the United States, the PAL-D / K method is used in the Middle East and Romania, the PAL-I method is adopted in the UK, Ireland and South Africa, and the SECAM-L method is used in France and Luxembourg. In Eastern Europe such as the Union, the SECAM-D / K system is adopted.

In this case, the NTSC method generates two chroma signals (I signal and Q signal) by expressing the contrast of the screen by the luminance signal (Y signal) included in the composite video signal, and uses the carrier wave of a predetermined frequency to change the color. The PAL method is a method of transmitting and detecting the phase of any one of the I signal and the Q signal, which are chroma signals, by 180 ° per scan line, and the SECAM method is different from the NTSC and PAL methods. In order to transmit a color difference signal by FM modulation of a carrier and to simultaneously transmit two color difference signals, an FM wave of two different color subcarriers is required.

In addition, the typical difference according to the characteristics of the NTSC / PAL / SECAM method is the difference between the video band, the voice carrier and the color carrier, the first in the NTSC video band is 4.2MHz and the voice carrier is 4.5 MHz and color carrier are 3.579545 MHz. In the PAL method, the video band is 5 MHz, the voice carrier is 5.5 MHz, and the color carrier is 4.433618 MHz. Finally, the video band is 6MHz, voice carrier is 6.5MHz and color carrier is 4.40625MHz and 4.25MHz.

As such, since the characteristics of each television broadcasting system are set differently from each other, a television set manufactured for one television broadcasting system can no longer receive television broadcasting transmitted by another broadcasting system. The so-called 'multi-television' designed to enable the reception of different television broadcasting methods by appropriately selecting the broadcasting method has been proposed and commercialized.

Such a multi-television channel can be tuned by all the switching (for example, NTSC-PAL-SECAM), but there is not enough data on the country-specific broadcasting channels at the time of channel selection, so it is immediately possible to know which country the current broadcast program is from. As a result, only after seeing the contents of the current broadcast program to a certain extent, it is possible to determine the country of the currently broadcast program.

Accordingly, the present invention has been made in view of the above circumstances, and an object thereof is to use a predetermined country code in a multi-television (NTSC / PAL / SECAM method) capable of using a predetermined country code. When the broadcasting channel is selected, the present invention provides an apparatus and method for controlling broadcast viewing of a multi-television using a country code which is automatically switched to a broadcasting method of a corresponding country so that broadcasting can be easily performed.

In order to achieve the above object, the broadcast viewing control apparatus for a multi-television using a country code according to the present invention is one of the three broadcasting methods (NTSC / PAL / SECAM method) set by the broadcasting method setting means. In the multi-television which can reproduce the broadcast signal based on,

A control function setting unit capable of setting a country watching mode for facilitating selection of a broadcast viewing desired station and channel accordingly; Control means for controlling, by the control function setting unit, the broadcast viewing desired station selection and the reproduction of the corresponding broadcast signal according to the channel selection station in the selected country when the country designation mode is set; A memory unit in which a predetermined country-specific number and a country-specific number are classified according to a corresponding broadcasting method, and data for a selectable broadcast channel for each country is stored in advance; And an OSD processing unit for screening the desired viewing station selection and the guidance message for the selectable broadcast channel in the selected country when the country designation mode is set under the control of the control means.

According to a preferred embodiment of the present invention, the country-specific number data stored in the memory unit consists of international country-specific phone numbers.

In addition, the broadcast viewing control method of the multi-television using the country code according to the present invention is a broadcast signal based on any one of the three broadcast methods (NTSC / PAL / SECAM method) set by the broadcast method setting means. In multi-television that can play

A first step of judging whether to set a broadcasting mode watching station and a country designation mode to facilitate channel selection accordingly; A second step of displaying a message for requesting selection for a broadcast viewing desired station when the country designation mode is set; A third step of displaying a guide message for requesting viewing channel selection when an arbitrary broadcasting viewing desire station is selected in response to the guide message; In response to the guide message, if a desired viewing channel is selected, a fourth process is provided so that broadcasting can be performed by reproducing the broadcast signal of the selected channel while automatically switching to the broadcasting method of the selected country.

According to a preferred embodiment of the present invention, the broadcast viewing desired station selection in the country designation mode is designated by any one country by moving the cursor with respect to the plurality of displayed countries.

The broadcast viewing desired station selection in the country designation mode is performed by inputting a unique number for any country among the plurality of countries displayed on the screen.

In addition, the unique number is made up of international telephone numbers by country.

According to the present invention configured as described above, when the user (viewer) sets the country designation mode using the control function setting unit, under the control of the control means, the OSD processing unit displays a guide message for requesting the request of the broadcast viewing request. In response to the displayed guide message, the user selects an arbitrary country, and a message for requesting viewing channel selection request is displayed on the screen.If any channel is selected, the selected message is automatically switched to the broadcasting method of the selected country. Since the broadcast signal for the channel is reproduced, the user can easily watch a desired channel of another country.

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

1 is a block diagram of a multi-television broadcasting viewing control apparatus using a country code employed in the present invention. The apparatus employed in the present invention includes a tuner 10, a voice IF module 12, and a voice signal processor 14. , Audio signal amplifier 16, video IF module 18, broadcast method setting means 20, video signal processor 22, video signal amplifier 24, control function setting unit 26, control means ( 28, a memory unit 30, and an OSD processing unit 32.

The tuner 10 tunes and tunes the broadcast signal of the corresponding channel based on the channel selection signal VT from the control means 28 described later among the television broadcast signals of any broadcast method received by the antenna A. The high frequency signal is amplified and the middle frequency signal is filtered and output from the amplified high frequency signal.

The voice IF module 12 detects the voice intermediate frequency signal SIF from the intermediate frequency signal IF of any broadcasting method output from the tuner 10 and amplifies the detected voice intermediate frequency signal SIF. Output it.

The voice signal processor 14 detects a voice subcarrier (ie, a voice carrier) for the voice IF amplified and detected voice signals output from the voice IF module 12 and performs three-broadcasting (NTSC / PAL / SECAM) methods. After determining which of the broadcast signals is received, the audio signal is processed in a voice surround or a voice multiplex method suitable for the broadcast method, or the volume control operation is performed according to the volume adjustment value set in the control function setting unit 26 to be described later.

The voice signal amplifier 16 amplifies the voice signal processed by the voice signal processor 14 and outputs it as a voice signal Aout reproduced by a speaker (not shown) as a volume output device.

The video IF module 18 amplifies and detects an intermediate frequency amplified video signal of a broadcast channel of an arbitrary broadcast method output from the tuner 10.

The broadcast method setting means 20 detects which of the three broadcast methods (NTSC / PAL / SECAM method) is the current broadcast signal based on the video signal from the video IF module 18, The predetermined broadcast method setting signal is applied to the video signal processor 22 and the control means 28, which will be described later, so that the operation of the multi-television can be set by the broadcast method.

Here, the broadcast method setting means 20 typically includes a subcarrier detection unit 20A, a switching unit 20B, an NTSC filter 20C, a PAL filter 20D, and a SECAM filter 20E.

The subcarrier detection unit 20A removes an audio signal and a corresponding noise component from an image intermediate frequency signal from the image IF module 18 to detect only a color broadcast wave.

The switching unit 20B is switched to the NTSC filter 20C, the PAL filter 20D, and the SECAM filter 20E based on the switching signal of the control means 28.

The NTSC filter 20C filters NTSC color carriers (ie, 3.579545 MHz), and the PAL filter 20D filters PAL color carriers (ie, 4.433618 MHz), and the SECAM filter 20E. Is applied to the image signal processor 22 by filtering the SECAM color carriers (i.e., 4.40625 MHz and 4.25 MHz), and any one of the NTSC filter 20C, PAL filter 20D, and SECAM filter 20E. The output value from the filter is applied to the control means 28 as a broadcast method setting signal (e.g., a signal of a high level).

The video signal processor 22 separates the video IF amplified and detected video signals output from the video IF module 18 into, for example, a luminance signal and a color signal according to the broadcast method set by the broadcast method setting means 20, After performing luminance adjustment and contrast adjustment of the separated luminance signal, demodulation of the separated color signal, the luminance signal and the demodulated two color difference signals are passed through a matrix circuit (not shown) to display the R, G, The color signal is converted to B signal and output.

In addition, the video signal processing unit 22 switches the video signal provided from an image device such as text information or a VTR to visually display the setting state of the control function for the corresponding multi-television from the OSD processing unit 32, which will be described later. Will be handled as

The video signal amplifier 24 amplifies the video signal processed by the video signal processor 22 and outputs it as a video signal Vout displayed on a CRT device (not shown) as a video display device.

The control function setting unit 26 sets the overall control function given to the multi-television.

The control means 28 controls the operation state of the multi-television according to the signal applied from the control function setting unit 26, while selecting the broadcast viewing desired station and the selected station when setting the country designation mode assumed in the present invention. Controls the signal processing operation to be performed by the broadcasting method of the corresponding country according to the country's viewing channel input.

The memory unit 30 is divided into a unique number (ie, a recognition number consisting of international international phone numbers for each country) and a country-specific number for a predetermined country by the corresponding broadcasting method among the three broadcasting methods. In addition, data on selectable broadcast channels for each country are pre-looked into a look-up table.

The OSD processing unit 32 displays the mode and / or adjustment value for the function set by the control function setting unit 26 under the control of the control means 28 on a screen (not shown) as OSD information, In the country-designated mode assumed in the present invention, a message (refer to FIG. 4A) for requesting the selection of a broadcasting viewing target station is displayed on the screen. A request message (see Fig. 4B) is displayed on the screen.

FIG. 2 is a diagram illustrating a configuration of a remote controller that can be employed as the control function setting unit 26 shown in FIG. 1. The remote controller 26 includes a power button for performing a television function, and the tuner 10. 10-keys, which are applied to a channel to be tuned to, or to a reservation number when making a reservation recording or to inputting a unique number for an arbitrary country in a country designation mode assumed in the present invention, and the control of the control means 28. A volume up / down button for adjusting the level of the voice signal processed by the voice signal processor 14, a channel up / down button for performing cyclic up / down of the entire viewable channel, and a broadcast viewing desire And a country setting mode setting button 26a for designating a station, a cursor moving button 26b for executing up / down of the cursor displayed on the screen in the country setting mode, and the like.

Referring to the conventional broadcast signal processing operation in the multi-television configured as described above, after the multi-television is turned on by the power button of the remote control (or control function setting section) 26, the 10-key or the channel up / down button is pressed. When an arbitrary channel tuning input is provided by the controller, the control means 28 applies a channel tuning signal VT corresponding to the channel to be tuned to the tuner 10 to receive satellites through the antenna A. Tuning of the broadcast signal of the broadcasting channel targeted for signal enhancement is performed. During the tuning operation of such a broadcasting channel, the OSD processing unit 32 is controlled to select the broadcasting channel and character information of the broadcasting channel. Is operated to be displayed on the video display screen of the multi-television via the video signal processing unit 22.

The voice signal included in the broadcast signal of the channel tuned by the tuner 10 is applied to the voice signal processor 14 after the intermediate frequency conversion and detection by the intermediate frequency is performed in the voice IF module 12. The voice signal processing unit 14 detects a broadcasting method based on the voice subcarrier of the currently input voice signal, and is set by the control function setting unit (remote control unit) 26 to control the OSD unit under the control of the control unit 28. Voice processing corresponding to the voice control function (e.g., volume control, voice surround or voice multiplexing, etc.) displayed on the screen by 32 is performed, and the voice signal processed by the voice signal processor 14 is The audio signal amplifier 16 outputs and reproduces the predetermined amplified audio signal Aout to the speaker.

At the same time, the video signal of the channel tuned by the tuner 10 is applied to the video signal processor 22 after being converted and detected by the intermediate frequency in the video IF module 18. Generally, the control means of the multi-television. 28 determines which broadcast method the current broadcast signal is based on the video intermediate frequency signal output from the video IF module 18.

For that reason, the video intermediate frequency signal output from the video IF module 18 is a color carrier only after the audio signal and its noise components are removed from the subcarrier detector 20A constituting the broadcast method setting means 20. The switching unit 20B is applied to the switching unit 20B, and the switching unit 20B is sequentially turned on once for the NTSC filter 20C, the PAL filter 20D, and the SECAM filter 20E according to the control signal of the control means 28. Switching connection is made. Accordingly, in any one of the NTSC filter 20C, the PAL filter 20D, and the SECAM filter 20E, there is a signal to be filtered (for example, a high level signal; a broadcast mode setting signal). The control means 28 determines which of the three broadcast methods the current broadcast signal is, and if so, controls the switching unit 20B to access the filter of the corresponding broadcast method. Be sure to

In this way, any one of the three broadcast methods is set, and the video signal processing unit 22 performs the video IF module 18 on the basis of the broadcast method setting signal from the broadcast method setting means 20. The video IF amplified and detected video signals outputted from the video signal are reproduced, and amplified by the video signal amplifying section 24 and displayed on the video output device (CRT device) as a video signal Vout.

Next, a broadcast listening control method executed by the multi-TV broadcasting listening control apparatus using the country code according to the present invention will be described based on the flowchart of FIG.

Once the user turns on the power of the multi-television using the control function setting unit 26 (step 300), the control means 28 determines whether the country designation mode is set. When the designated mode is not set, the control means 28 performs control on a control function (e.g., volume adjustment, brightness or contrast adjustment, etc.) set by the control function setting unit 26 ( In step 320), if the country designation mode is set, the control means 28 controls the OSD processing unit 32 to display a guide message (see FIG. 4A) requesting the selection of the broadcasting viewing desire station. (Not shown) (step 330).

When the user moves the cursor to select a desired country in response to the displayed guide message (step 340), the control means 28 again controls the OSD processing unit 32 to watch in the selected country. A prompt message (see FIG. 4 (b)) for selecting a broadcast channel to be displayed is displayed on the screen (step 350).

Subsequently, when the user moves the cursor and selects a desired broadcast channel in response to the guide message (step 360), the control means 28 selects the current selection based on the data preset in the memory unit 30. After determining the corresponding broadcast method with respect to the received signal, the tuner 10 is controlled while automatically switching to the broadcast method so as to tune into the selected broadcast channel (step 370).

Accordingly, since the signal of the broadcast channel tuned by the tuner 10 is output through audio and video through a general signal processing operation, the viewer can easily watch a broadcast program of a desired country (step 380).

On the other hand, although not shown in the flow chart of the present invention, in the broadcast viewing desired station selection operation in step 340, as shown above, by moving the cursor to select the desired country, the country watching button 26a must be pressed to view the broadcast. Instead of allowing the desired country to be selected, it is also possible to directly input the unique number of the country to which the user wishes to view the broadcasting among the unique numbers (ie, international phone numbers for each country) displayed on the screen using the 10-key. Do.

According to the present invention as described above, when the broadcasting station and the desired viewing channel is input in response to a predetermined guide message by setting the country designation mode, the broadcasting for the selected channel is automatically switched to the broadcasting method of the selected country. Since the program is aired, the inconvenience caused by the country discrimination on the current broadcasting program is solved, and it is possible to simply watch a desired channel of another country.

Claims (5)

In a multi-television capable of reproducing a broadcast signal based on any one of the three broadcast methods (NTSC / PAL / SECAM method) set by the broadcast method setting means, A control function setting unit (26) capable of setting a country watching mode for facilitating selection of broadcast viewing stations and corresponding channels; Control means (28) for controlling, by the control function setting unit (26), to select a broadcast viewing desired station and to reproduce a corresponding broadcast signal according to channel selection in the selected country when the country designation mode is set; A memory unit 30 in which a predetermined country-specific number and a country-specific number are classified according to a corresponding broadcasting method, and data for a selectable broadcasting channel for each country is stored in advance; And an OSD processing unit 32 for displaying a message for selecting a desired viewing station and displaying a guide message for a selectable broadcast channel in the selected country when the country designation mode is set under the control of the control means 28. Multi-TV broadcasting watching control device using a country code. The apparatus of claim 1, wherein the country-specific number data stored in the memory unit (30) comprises an international phone number for each country. In a multi-television capable of reproducing a broadcast signal based on any one of the three broadcast methods (NTSC / PAL / SECAM method) set by the broadcast method setting means, A first step of judging whether to set a broadcasting mode watching station and a country designation mode to facilitate channel selection accordingly; A second step of displaying a selection request guide message for a broadcast viewing desired station when the country designation mode is set; A third step of displaying a guide message for requesting viewing channel selection when an arbitrary broadcasting viewing desire station is selected in response to the guide message; And a fourth step of enabling a user to view a broadcast by reproducing a broadcast signal of a corresponding selected channel while automatically switching to a broadcasting method of the selected country when a desired viewing desire channel is selected in response to the guide message. Broadcast viewing control method of multi-television using code. [4] The broadcasting watching of the multi-television using the country code according to claim 3, wherein the broadcasting viewing desired station selection in the country designation mode is such that any one country is designated by moving a cursor to a plurality of displayed countries. Control method. [4] The method of claim 3, wherein the selection of a broadcasting viewing desire station in the country designation mode is performed by inputting a unique international number for each country among a plurality of displayed countries as a unique number. Broadcasting control method of multi-television using country code.