KR100247447B1 - Method for display of channel information in cable television - Google Patents

Abstract

The present invention relates to a method for displaying channel information of a cable TV for measuring and displaying a sensitivity of a cable TV broadcast signal received from a satellite broadcast receiver. A first step of generating a sensitivity measurement control signal for the broadcast signal of the channel when a request key signal is input, a second step of calculating the sensitivity for the broadcast signal of the channel and displaying it on a channel information screen of a predetermined type; When a menu screen off key signal is generated, turning off the displayed menu screen and switching the operation of the satellite broadcasting receiver to the normal viewing mode.

Description

How to show channel information on cable TV

The present invention relates to a digital satellite broadcasting receiver, and more particularly, to a method for displaying channel information of a cable TV suitable for displaying each channel information of CATV in a satellite broadcasting receiver capable of receiving a satellite broadcasting signal and a digital CATV broadcasting signal. .

As is well known, satellite broadcasting is a broadcasting satellite that receives a broadcast signal from a ground station (broadcasting earth station) using a broadcasting satellite floating in a stationary orbit of 36,000 km over the equator, and can receive it directly from a satellite receiving antenna in each home. This system is a broadcasting method in which the information selection range is greatly expanded compared to the conventional terrestrial or cable broadcasting system.

Meanwhile, the bit stream provided from the satellite includes various information such as broadcast signals (video data and audio data), event information table (EIT), and time data table (TDT) for each channel. Information about broadcast channels, that is, channel names for broadcasting stations and program information for each channel is included and displayed on a screen according to a user's request.

The satellite broadcasting receiver used for the satellite broadcasting receives the bit stream provided from the satellite, processes the broadcast signal of the selected channel, and then provides the signal to a display device (for example, TV) to display on the screen. In addition to signals, it is also possible to receive digital CATV broadcast signals.

However, unlike the above-mentioned satellite broadcast signal, the digital CATV broadcast signal does not include information on each channel name, and the function of displaying the size of the broadcast signal for each channel of CATV automatically tuned in such a satellite broadcast receiver is added. In this case, not only the use efficiency of the satellite broadcasting receiver may be increased, but it may also be able to satisfy the needs of various users according to various services.

Accordingly, an object of the present invention is to provide a method for displaying cable information of a cable TV that can display the magnitude of a CATV broadcast signal for each channel received by a satellite broadcast receiver.

In order to achieve the above object, the present invention provides a digital cable in a satellite broadcast receiver for receiving a satellite broadcast signal provided from a satellite and a digital cable broadcast signal provided through a transmission path and displaying a predetermined signal on a monitor after processing. A method for displaying channel information of a TV, wherein, when the information request key signal for the channel being watched is input during the normal viewing mode for the cable TV broadcast, a sensitivity measurement control signal for the broadcast signal of the channel is generated. In a first step, the second step of calculating the sensitivity of the broadcast signal of the channel to display a predetermined form of the channel information screen, When the menu screen off key signal occurs, the displayed menu screen is turned off, the satellite Switch the broadcast receiver to normal viewing mode The provides a channel information display method of the cable television including the step 3.

1 is a block diagram of a satellite broadcasting receiver suitable for applying a method for displaying channel information of a cable TV according to an exemplary embodiment of the present invention;

2 is a diagram illustrating an example of a method for displaying channel information of a cable TV according to an embodiment of the present invention;

3 is a flowchart illustrating a process of displaying channel information of a satellite broadcast receiver according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

10: key input unit 20: tuner and demodulation unit

30: sensitivity determination unit 40: microcomputer

50: memory 60: OSD

70: monitor

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings.

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

1 is a block diagram of a satellite broadcasting receiver suitable for applying a method for displaying channel information of a cable TV according to an exemplary embodiment of the present invention, and includes a key input unit 10, a tuner and a demodulator 20, and a sensitivity determination unit ( 30), the microcomputer 40, the memory unit 50, the OSD unit 60, and the monitor 70.

The key input unit 10 is composed of key metrics on a remote controller or its own panel to generate a corresponding key signal by a user's operation and provide it to the microcomputer 40. In particular, for displaying information on each channel of the CATV. It is configured to include function keys.

The tuner and demodulator 20 is a complex tuner capable of receiving a satellite broadcast signal received through a satellite antenna (not shown) and a CATV broadcast signal provided through a transmission path. By tuning the bitstream of the corresponding channel and then providing it to the digital signal processor (not shown), the broadcast signal of the channel is displayed through a predetermined signal processing process.

The microcomputer 40 controls a control signal for tuning a broadcast channel, a control signal for tuning a broadcast channel, and a control signal for driving the OSD unit 60 based on a key signal from the key input unit 10. It is generated, and is provided to the OSD unit 60 by receiving the sensitivity of the broadcast channel signal provided from the sensitivity determination unit 30 to be described later.

The memory unit 50 stores information on various menu screens. In particular, the memory unit 50 stores a menu screen format for displaying the frequency intensity for each channel of CATV and outputs the same based on a control signal of the microcomputer 40.

In addition, the OSD unit 60 receives a control signal provided from the microcomputer 40 and various menu screen information, configures a menu screen corresponding thereto, and displays the same through the monitor 70.

The detailed description will be made with reference to the accompanying drawings, in which a user selects the broadcast signal of the CATV channel currently displayed while the specific channel selected by the user among the broadcast signals of the CATV received through the transmission path is configured. When a key signal for checking the strength of the signal or information on the corresponding channel is input through the key input unit 10, the microcomputer 40 generates a control signal to the sensitivity determiner 30.

Then, the sensitivity determination unit 30 measures the magnitude of the signal for the currently tuned CATV channel from the tuner and demodulator 20 based on the control signal of the microcomputer 40 and provides it to the microcomputer 40 again. The microcomputer 40 provides the OSD unit 60 with the menu screen format stored in the memory unit 50 and the size information of the broadcast signal provided from the sensitivity determining unit 30.

Accordingly, the CATV channel information screen corresponding to the key signal of the user is displayed on the monitor 70 through the OSD unit 60. FIG. 2 is a diagram illustrating an example of such a channel information screen. As shown in the figure, a graph showing the channel number and the sensitivity and sensitivity information of the broadcast signal is displayed.

3 is a flowchart illustrating a process of displaying channel information of a cable TV according to an exemplary embodiment of the present invention, which will be described in detail with reference to the accompanying drawings.

If the user inputs the channel information key signal to refer to the sensitivity of the broadcasting signal currently being viewed (step 301) while receiving the CATV broadcasting signal provided through the transmission path from the satellite broadcasting receiver (step 303), the microcomputer 40 ) Generates a control signal for measuring the sensitivity of the broadcast signal for the CATV channel currently being viewed (step 305).

Then, the sensitivity determining unit 30 determines the sensitivity of the broadcast signal for the currently tuned channel based on the control signal provided from the microcomputer 40 (step 307), which is again stored by the microcomputer 40 in the memory unit. The menu screen information stored in 50 is provided to the OSD unit 60. Thus, the channel information screen of CATV corresponding to the channel information key signal of the user as shown in FIG. 2 is displayed on the monitor 70 (step 309).

When the channel information screen for the specific channel of the CATV is displayed through the above-described process, when a menu screen OFF key signal is generated by the user or a predetermined time elapses (step 311), As the operation of the OSD unit 60 is blocked by the control of the microcomputer 940, the displayed channel information screen is turned off (step 313), and the operation of the satellite broadcasting receiver is switched to the normal viewing mode of the initial step 301 described above. (Step 315).

As a result, the strength of the broadcast signal for each channel of the CATV is measured and displayed according to the user's request.

As described above, according to the present invention, by measuring and displaying the sensitivity of the broadcast signal for each channel of the CATV received through the transmission path in the satellite broadcast receiver, there is an effect that can provide a variety of information, and also various users There is an effect that can meet the needs of.

Claims (5)

In the method for displaying the channel information of the digital cable TV in a satellite broadcast receiver receiving a satellite broadcast signal provided from a satellite and a digital cable broadcast signal provided through a transmission path and displaying a predetermined signal on a monitor after processing , A first step of generating a sensitivity measurement control signal for the broadcast signal of the channel when an information request key signal for the channel being watched is input during the normal viewing mode for the cable TV broadcast; A second step of calculating a sensitivity of the broadcast signal of the channel and displaying the same on a channel information screen of a predetermined type; And turning off the displayed menu screen when the menu screen off key signal is generated, and switching the operation of the satellite broadcasting receiver to a normal viewing mode. The method of claim 1, wherein the third step further comprises turning off the displayed channel information screen when a predetermined time elapses. The method of claim 1, wherein the channel information screen is displayed in the form of 'bad', 'normal', and 'excellent'. The method of claim 3, wherein the channel information screen is displayed in a bar shape in a horizontal direction. The method of claim 1, wherein the channel information screen is displayed in a 'bad', 'normal', 'excellent' form and a numerical value.

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