KR20000074927A - Channel selecting mothod of television - Google Patents

Abstract

PURPOSE: A method of selecting a channel of a television receiver is provided to display a broadcasting channel information on a screen when a channel up/down key is pressed for a desired time. CONSTITUTION: The method of selecting a channel of a television receiver comprises the steps of: determining whether a broadcasting channel information is displayed on a screen as a when a channel up/down key signal is input; moving a cursor up and down so that the cursor is positioned at a desired channel selected by a user if the broadcasting channel information is displayed on the screen, and then outputting a PLL(phases locked loop) data of the channel, and determining whether the channel up/down key signal is continuously input for a desired time if the is not displayed; and displaying the broadcasting channel information stored in a memory on the screen if the channel up/down key signal is continuously input for the desired time, and selecting the channel in a channel up/down way if the channel up/down key signal is momently input.

Description

Channel selecting method of TV receiver {Channel selecting mothod of television}

The present invention relates to a channel selection method of a TV receiver for displaying a broadcast channel information on a screen by an OSD (On Screen Display) so that a user can quickly and easily select a channel to be tuned.

FIG. 1 illustrates an example of a channel selection method of a conventional TV receiver, and provides a memory function for storing a user's favorite channels separately in a memory unit so that only memorized channels are selected.

That is, when the user up / downs the channel using the up / down key provided in the key input unit, if the selected channel is a channel stored in the memory unit, the selected channel is tuned. By skipping channels, only the channels stored in the memory are selected.

However, in the conventional channel selection method as described above, when there are many channels stored in the memory unit and the distance between the channel currently being viewed and the channel to be tuned is long, the stored channels are tuned one by one using the up / down keys. As you go, you have to find the channel you want to tune into. As a result, it is necessary to select the up / down key several times, so it takes a long time to select a channel.

Another conventional channel selection method is to display a plurality of channels stored in the memory unit on the TV screen with an OSD (On Screen Display), and then use menu keys provided in the key input unit and up, down, left, and right keys. This method selects a channel by placing the cursor on the channel to be tuned.

However, in the conventional channel selection method, a channel to be selected can be selected only by manipulating various keys such as menu keys and up, down, left and right keys when switching channels, thus making the channel selection process complicated.

According to the present invention, when the channel up / down key is pressed for a predetermined time, the broadcasting channel information is displayed on the TV screen as an OSD (On Screen Display) so that the user can quickly and easily select a favorite channel. It is for.

1 is a view showing an example of a channel selection method of a conventional TV receiver

2 is a diagram showing the configuration of a TV receiver for applying the present invention.

3 is a flowchart illustrating a channel selection method of the present invention TV receiver.

4 is a diagram illustrating an example of displaying broadcast channel information by OSD in the present invention.

2 is a block diagram of a TV receiver for applying the present invention, and includes a tuner unit 10 for tuning a broadcast signal received through an antenna ANT and a broadcast signal tuned in the tuner unit 10. The image processing unit 20 for processing the image signal as a color signal, the image switching unit 30 for switching the color signal output from the image processing unit 20 to output to the CPT, and the front lower portion of the TV receiver A key input unit 40 having a plurality of keys for controlling each unit of the system, a remote controller 50 having a plurality of keys for controlling each unit of the system at a distance, and a key input unit 40 and a remote controller ( The microcomputer 60 receives a key signal from the key 50 and controls each unit of the system, and a memory unit 70 in which broadcasting channel information is stored as an OSD (On Screen Display).

The channel selection method of the TV receiver of the present invention implemented by such a component is as follows.

When the channel up / down key signal is input, the first step of determining whether the broadcast channel information is displayed on the screen by the OSD, and if the broadcast channel information is displayed on the OSD by the first step discrimination, the cursor up / down Positioning the cursor on the selected broadcasting channel and outputting the PLL data of the channel and determining whether the channel up / down key signal has been input for a predetermined time if the OSD is not being displayed; As a result of process determination, if channel up / down key signal is input for a certain period of time, broadcasting channel information stored in memory part is displayed on OSD, and if channel up / down key signal is temporarily input, it is channel up / down method. The process proceeds to the third process of selecting a channel.

Referring to Figures 2 to 4 the channel selection method of the present invention TV receiver proceeds as described above is as follows.

First, when the user wants to switch channels during TV viewing, the UP / DOWN provided in the key input unit 40 or the remote controller 50 located in the front lower portion of the TV receiver. ) Select the channel to tune to using the KEY.

In this case, the key signals of the key input unit 40 and the remote controller 50 are input to the microcomputer 60, and the microcomputer 60 tunes the broadcast signal corresponding to the input channel / up-down key signal to the tuner unit 10. Output PLL (Phase Locked Loop) data.

Then, the tuner unit 10 tunes the broadcast signal of the channel selected by the user by the PLL data of the microcomputer 60, and outputs the video signal CVBS of the tuned broadcast signal to the image processor 20, and outputs the image processor 20 20) the input video signal is processed as a color signal (R / G / B) and output to the image switching unit 30.

The image switching unit 30 outputs the color signal processed image signal to the CPT so that the image signal is displayed on the screen.

As such, when the user selects a channel to be tuned while tuning channels one by one using the channel up / down keys, channel tuning takes a long time.

In the present invention, all the broadcasting channel information stored in the TV receiver is stored in the memory unit 70 and the channel up / down key is continuously pressed for a predetermined time, and the broadcasting channel information stored in the memory unit 70 is shown in FIG. 4. Likewise, it provides the function to display the OSD on the screen so that the user can quickly select the desired channel.

That is, when the user does not remember how many channels they want to find when switching channels, or when the channel being watched is far from the channel being watched, and the user wants to quickly select a channel, the key input unit 40 or the remote controller 50 is provided. Press and hold the channel up / down key for a certain time.

At this time, when the channel up / down key is continuously input from the key input unit 40 or the remote controller 50 for a predetermined time, the microcomputer 60 reads the broadcast channel information stored as OSD information in the memory unit 70 and the cursor signal. Along with the output to the image switching unit 30.

The image switching unit 30 synthesizes an image signal processed as a color signal through the image processing unit 20 and OSD broadcast channel information input from the microcomputer 60 and outputs the synthesized CRT.

Then, the video signal of the broadcast signal currently tuned by the tuner unit 10 is displayed on the screen, and the broadcast channel information is displayed in the OSD (see FIG. 4).

At this time, when the channel up / down key signal is input to the microcomputer 60, the microcomputer 60 controls the cursor CURSOR to be up / down on the broadcasting channel information displayed by the OSD so that the user uses the channel up / down key. Position the cursor on the channel to be tuned among the broadcasting channel information displayed by the OSD.

Thereafter, the microcomputer 60 outputs the PLL data to the tuner unit 10 so that the broadcast channel on which the cursor is located is tuned, and the tuner unit 10 broadcasts the broadcast signal of the channel selected by the user by the PLL data of the microcomputer 60. The video signal CVBS of the broadcast signal tuned and tuned is output to the video processor 20.

The image processing unit 20 processes a video signal of a broadcast channel tuned by the tuner unit 10 as a color signal (R / G / B) and outputs it to the image switching unit 30, and the image switching unit 30 is a color signal. By outputting the processed video signal to the CRT, the video signal of the broadcasting channel desired by the user is displayed on the screen.

As described above, in the present invention, when fast channel selection is desired, simply press and hold the channel up / down key for a predetermined time so that broadcast channel information is displayed on the screen so that channel selection can be performed quickly and simply.

Claims (1)

When the channel up / down key signal is input, the first step of determining whether the broadcast channel information is displayed on the screen by the OSD, and if the broadcast channel information is displayed on the OSD by the first step discrimination, the cursor up / down Positioning the cursor on the selected broadcasting channel and outputting the PLL data of the channel and determining whether the channel up / down key signal has been input for a predetermined time if the OSD is not being displayed; As a result of process determination, if channel up / down key signal is input for a certain period of time, broadcasting channel information stored in memory part is displayed on OSD, and if channel up / down key signal is temporarily input, it is channel up / down method. The channel selection method of the TV receiver, characterized in that proceeds to the third process of selecting a channel.