KR19990025624A - How to control TV program channel switching - Google Patents

Abstract

In the present invention, in a state where display information of program numbers of a plurality of program channels assigned to a television is displayed on the screen, a channel jump to a desired program channel is performed by a movement operation of a cursor, The present invention provides a method of controlling a program channel switching of a television set.

To this end, according to the present invention, a program channel set to be channel-switchable for a plurality of broadcast channels is sequentially displayed on the television set by sequentially operating the up / down keys 20A of the function setting unit 20 When the up or down operation state of the up / down key 20A of the function setting unit 20 is continuously operated over the stabilization time at the time of channel selection in the program channel system, A first step in which an OSD menu screen having a program number is displayed so that a cursor can be moved; and a step of displaying an OSD menu screen having program numbers for the plurality of program channels, A second step in which the cursor moves to each program number at predetermined time intervals in accordance with the continuous up operation or the continuous down operation of the key 20A and the second step in which the up / down key 20A of the function setting section 20 And a third step of selecting and reproducing a channel of a program number corresponding to a cursor position at a time point at which the continuous up operation or the continuous down operation is stopped.

Description

How to control TV program channel switching

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a program channel switching control method for a television, and more particularly to a program channel switching control method and apparatus for quickly switching a program channel among a plurality of program channels arranged by a user, And more particularly, to a program channel switching control method for a television which enables channel switching.

As it is well _known, for the viewing of a plurality of broadcast signals from the broadcast station a television for reproducing the broadcast signal including a video signal and an audio signal transmitted over-the-air type, specifying a broadcast station for transmitting a particular broadcast program desired to be As a means, at least one tuner is indispensably provided _, and channel selection data uniquely set for each broadcasting station is applied to the tuner, so that it is possible to selectively broadcast a desired broadcasting signal among a plurality of broadcasting channels _.

_And, typically the television as a means to tune to a particular broadcast channel by a tuner as a remote control device for remote control to the control item is assigned to a channel up _/ down button or TV on the installed control panel on the television front of the A specific channel must be selected by the channel up / down button or the 10-key provided on the control panel of the remote controller (Remocon), but according to the channel selection operation of such a broadcast channel, - Depending on the operating state of the key, there is a possibility that not only the channel capable of viewing the broadcast signal but also the channel of the broadcast signal is set as the channel selection target.

Therefore, in recent years, a broadcasting channel in which a TV broadcasting signal is transmitted from a specific broadcasting station among a plurality of broadcasting channels is searched through an automatic channel search operation, and program channelization is performed for each broadcasting channel, A programmable channel method is adopted in which a channel that can be switched by an arbitrary arrangement of viewers is set and a desired broadcast channel can be switched only by operating an up / down button provided on a remote control or a control panel of the main body.

When a predetermined program channel set in advance by this program channel system is specified, a period of about 400 ms is required until stationary tuning data is supplied to the tuner every time an up operation or a down operation to the corresponding program channel is performed, During the stabilization time until such a stable channel selection operation is performed, video mute can be performed in order to cancel the noise of the video image in addition to the muting of the audio signal.

However, in the case of the program channel scheme employed in such a television, a predetermined number of program channels are leaped in a state in which a predetermined program channel is selected among a plurality of program channels that can be selected by the up / down operation, It is inconvenient to repeatedly operate the up / down buttons installed on the remote control or the control panel of the main body in a plurality of times when it is necessary to switch the channel selection (that is, when it is desired to jump from one program channel to 10 program channels) Not only the repeated channel switching for each program channel but also a lot of image muting during the stabilization time period from the stable channel selecting operation to the visual channel disconnection.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an apparatus and a method for performing channel hopping to a desired program channel by moving a cursor in a state in which display information of program numbers of a plurality of program channels allocated to the television is displayed And a program channel switching control method of the television so as to enable rapid channel switching of the corresponding program channel.

According to another aspect of the present invention, there is provided a program channel switching control method for a television, wherein a program channel set to be channel-switched for a plurality of broadcast channels is up-operated or down- When the up or down operation state of the up / down key of the function setting unit is continuously operated in excess of the stabilization time at the time of channel selection, the program channel system of the television in which the plurality of program channels The OSD menu screen having the program number for the program channels is displayed so that the cursor can be moved; and a step for displaying the OSD menu screen having the program number for the plurality of program channels on the up / down key of the function setting unit The cursor moves to each program number at a predetermined time interval according to the continuous up operation or the continuous down operation for And a third step of selecting and reproducing a channel of a program number corresponding to a cursor position at a time point at which the continuous up operation or the continuous down operation for the up / down key of the function setting section is stopped, Thereby providing a channel switching control method.

According to the present invention configured as described above, it is possible to provide a remote control for switching channels by up / down operations for a plurality of program channels in a television having a program channel designated to be channel- The menu screen of the program number for the plurality of program channels is displayed on the screen and the cursor is moved by the movement operation of the cursor corresponding to the continuous operation state of the up / So that channel selection can be performed.

1 is a block diagram showing a program channel switching control apparatus for a television to which the method of the present invention is applied;

2 is a diagram illustrating an example of a state in which a desired program channel is rapidly switched among a plurality of program channels according to a preferred embodiment of the present invention;

3 is a flowchart illustrating an operation according to a preferred embodiment of the present invention.

Description of the Related Art [0002]

The present invention relates to a video signal processing apparatus and method for controlling a video signal processing apparatus and a video signal processing apparatus using the same. 20: function setting section, 22: channel selection data memory, 24: control section, 25: timer, 26: OSD signal processing section.

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

1 is a block diagram showing a program channel switching control apparatus for a television to which the method of the present invention is applied. In the figure, reference numeral 2 denotes channel channel selection data for selecting a predetermined channel from the control unit 24 (TU) and tuning the corresponding channel among a plurality of channels induced in the reception antenna, mixing the local oscillation frequency signal generated by the channel selection data and outputting the combined signal in the form of an intermediate frequency signal, and 4 Represents an image IF unit that performs an intermediate intermediate frequency amplification of a television broadcast signal selected and converted into an intermediate frequency signal.

Reference numeral 6 denotes a video detector for detecting a composite video signal for separating a composite video signal from the television broadcast signal amplified with the video intermediate frequency, 8 denotes a signal amplifier for amplifying the detected composite video signal so as to process a video signal, And separates the amplified composite video signal into a luminance signal and a color difference signal, and outputs the composite signal to an R / G / B signal through a luminance adjustment process, a color demodulation process, and an image analog level adjustment process, And an image output unit for amplifying the R, G, and B signals of the result of the image signal processing and outputting the amplified R / G / B signals so that the image can be reproduced on the CRT screen.

Reference numeral 12 denotes a voice detection unit for performing a detection operation for separating a voice signal from a television broadcast signal amplified by the video intermediate frequency by the video IF unit 4. Reference numeral 14 denotes a signal amplification unit for amplifying the detected voice signal A sound signal processing section 16 for performing sound signal processing such as stereo signal processing and audio multiplexing processing and outputting and outputting audio signals 16, Quot;

Reference numeral 18 denotes a sync separator for separating a composite sync signal from a composite video signal through the video detector 6 to extract a horizontal sync / vertical sync signal HS / VS.

Reference numeral 20 denotes a program which is formed by a remote control for remote control or a matrix button unit provided in the control panel unit of the main body and which is used to program a broadcast channel of a television broadcast signal transmitted in the form of airwaves tunable via the tuner 2 And an up / down key 20A for channel switching the channel by an up / down operation.

Reference numeral 22 denotes a channel selection data memory for storing channel selection data of a program channel designated by a program number for a plurality of broadcast channels.

Reference numeral 24 denotes a control section for performing channel selection control for channel selection of a program channel in accordance with a state in which the up / down key 20A of the function setting section 20 is operated by a key, Down key 20A of the function setting unit 20 is continuously operated up or down through a stabilizing time such as 400 ms which is stabilized from the station selection of the broadcast channel The menu screen of the program number for the plurality of program channels stored in the channel selection data memory 22 is displayed on the screen and the up / down key 20A of the function setting unit 20 is continuously operated To move the cursor to the program number corresponding to the operation and to tune to the program channel corresponding to the position of the cursor stopped by the end of the continuous operation for the up / down key 20A Null is generated for channel selection data (TU).

Reference numeral 26 denotes an up / down switch of the function setting unit 20, which is synchronized with the horizontal / vertical synchronizing signal HS / VS from the sync separator 18 under the display control of the controller 24, The OSD menu screen 28 relating to the program number of the overall program channel and the cursor 30 movable on the program number constituting the OSD menu screen 28 are displayed on the screen 20 as the key 20A is continuously operated up / (See Fig. 2).

Next, the operation of the present invention as described above will be described in detail with reference to the flowchart of FIG.

First, in step 40, the main power is turned on by the power-on operation of the function setting unit 20, and the control unit 24 proceeds to step 41 so that the up / down key 20A of the function setting unit 20 It is determined whether or not a key operation for switching a predetermined program channel among a plurality of program channels is being performed.

If it is determined in step 41 that the up / down key 20A of the function setting unit 20 is being operated by a key, the control proceeds to step 42 so that the up / down key 20A performs an up operation The channel selection data for selecting the broadcast channel designated by the adjacent program channel number from the current broadcast channel is applied to the tuner 2 in response to the down operation so that the corresponding broadcast channel is selected.

In this state, the control unit 24 proceeds to step 43 whereupon the up or down operation of the up / down key 20A of the function setting unit 20 is terminated by, for example, 400 ms It is determined whether or not the key is continuously operated in excess of the predetermined stabilization time required for the same normal channel selecting and regeneration.

If it is determined in step 43 that the up / down key 20A of the function setting unit 20 is continuously operated up or down for a time exceeding the stabilization time, the control proceeds to step 44 and the OSD The OSD menu screen 28 having the program number of the overall program channel stored in the channel selection data memory 22 as shown in Fig. 2 and the cursor (Fig. 2 30) is displayed on the screen.

Then, in step 45, the cursor 30 is moved to the OSD menu 20 at a predetermined time interval corresponding to a state in which the up / down key 20A of the function setting unit 20 is continuously operated up or down, To be moved upward or downward on each program number on the screen 28.

In this state, the controller 24 proceeds to step 46 to determine whether the continuous key operation for the up / down key 20A of the function setting unit 20 is stopped.

If it is determined in step 46 that the continuous up operation or down operation for the up / down key 20A of the function setting unit 20 is stopped, the control proceeds to step 47 so that the up / Recognizes the program channel corresponding to the position of the cursor 30 moved at the time when the continuous operation of the key 20A is stopped and notifies the tuner 2 of the channel preset data (TU) so that the designated program channel can be selected and reproduced.

According to the present invention as described above, a channel can be switched by rapid movement to a desired program channel by moving a cursor on a menu screen in which a program number of a plurality of program channels is displayed on a television, So that the channel can be easily switched.

Claims (1)

In a program channel mode of a television in which a program channel set to be channel-switchable for a plurality of broadcast channels is sequentially channel-tuned by up-operation or down-operation of the up / down key 20A of the function setting unit 20 , If the up or down operation state of the up / down key 20A of the function setting unit 20 is continuously operated above the stabilization time at the time of channel selection, the OSD menu having the program number for the plurality of program channels A first step in which a screen is displayed such that movement of a cursor is possible, When the OSD menu screen having the program numbers for the plurality of program channels is displayed, the cursor is moved to the respective program numbers in accordance with the continuous up operation or the continuous down operation for the up / down key 20A of the function setting unit 20. [ A second step of moving in a predetermined time interval, And a third step of selecting and reproducing the channel of the program number corresponding to the cursor position at the time when the continuous setting operation or the continuous down operation for the up / down key 20A of the function setting section 20 is stopped To the program channel switching control method of the television.