KR20100027666A - Method for switching external input mode of television - Google Patents

Abstract

PURPOSE: A method of switching an external input mode of a television is provided to reduce a repeated key input operation of the external device using a generic number. CONSTITUTION: A method of switching an external input mode of a television comprises the following: detecting an external device connected to the television(S10); determining an input of an external input key for an external input mode switching(S12); displaying a list of the detected external device by allocating a generic number to each detected external device(S14); inputting a number key while the list of the detected external device is displayed(S16); selecting the external device corresponding to a selected generic number(S18); and performing a switch to the selected external device(S20,S22).

Description

External input mode switching method of TV {METHOD FOR SWITCHING EXTERNAL INPUT MODE OF TELEVISION}

The present invention relates to a method of switching an external input mode of a television, and more particularly, by assigning a unique number to an external device connected to a television, and switching the external input mode, by simply inputting a unique number assigned to each external device. An external input mode switching method of a television capable of switching an external input mode.

In general, digital television reproduces much clearer picture quality and sound quality because all signals transmitted from a broadcasting station to a home as well as signal processing in a television receiver are digital.

In recent years, the provision of the interface of various external devices (VCR, DVD, STB, PC, etc.) in addition to broadcast signals has become a basic feature in digital television. In particular, in the case of high-definition resolution digital TVs and separate TVs, multimedia functions are gradually being enhanced. to be.

In addition, for the convenience of users, a remote controller (hereinafter, referred to as a remote controller) is used to remotely control electronic products without directly operating a key panel installed in the main body of an electronic product. Nearly all are equipped with a remote control for remote control for the convenience of the user.

The function of the remote controller is not only a TV on / off function, but also a function such as channel switching and volume control, and is used as a means for switching to various connected external device input modes.

1 is a block diagram showing an external input mode switching device of a general television.

As shown here, the external input mode switching apparatus of the television displays a signal of the external input selected by the switching device 40 on the screen (not shown) via the video processor 20 and the display driver 30 to switch the device (not shown). 40 allows an external device (not shown) to be selected according to an external input mode by the control of the microcomputer 10, and the microcomputer 10 recognizes a control signal of a remote controller (not shown) to control the switching device 40. And the OSD display signal to the video processor 20.

When the external input key is input, the microcomputer 10 applies the OSD data to display the external input mode selection screen on one side of the screen and applies the video processor 20, and again displays the external input key while the external input mode selection screen is displayed. Press to select the external input mode according to the preprogrammed sequence and display the video of the selected external device on the screen.

That is, the external input mode is selected in the order of AV1 → AV2 → AV3 → AV4 → 1st component → 2nd component → RGB → DVI → ATSC according to the number of input of the external input key. Display the output on the screen.

The technology described above refers to the background of the technical field to which the present invention belongs, and does not mean the prior art.

In this way, if the user wants to select the external input mode through the remote control input, the user can select the desired external input mode by repeatedly inputting the external input key on the remote control. Not only because it is inconvenient but also takes a lot of time.

The present invention was created to solve the above problems, and when the external input mode is switched by assigning a unique number to each external device connected to the television, the external input mode is simply input by inputting the unique number assigned to each external device. It is an object of the present invention to provide a method of switching an external input mode of a television, which can switch the control.

According to an aspect of the present invention, there is provided a method of switching an external input mode of a television, the method comprising: detecting an external device connected to the television and determining an input of an external input key for external input mode switching; Displaying a list of detected external devices by allocating a unique number to each of the detected external devices when an external input key is input; Determining an input of a numeric key while displaying a list of detected external devices; Selecting an external device corresponding to the detected unique number when a numeric key is input; And determining whether the confirmation key is input after selecting the external device, and switching to the selected external device.

Selecting an external device in the present invention is characterized by moving the cursor to the selected external device from the list of displayed external devices.

In the present invention, when a predetermined time elapses when determining whether a numeric key is input or a confirmation key is input, the external input mode switching is cancelled.

In the present invention, the confirmation key is an external input key.

As described above, in the present invention, when the external input mode is switched by assigning a unique number to each of the external devices connected to the television, the external input mode can be easily switched by inputting the unique number assigned to the external device. In addition to reducing keystrokes, the external input mode can be switched quickly and easily.

Hereinafter, an embodiment of an external input mode switching method of a television according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

2 is a flowchart illustrating a method for switching an external input mode of a television according to an embodiment of the present invention, FIG. 3 is a screen showing a state in which a unique number is assigned to an external device in FIG. 2, and FIG. 4 is FIG. This screen shows the external device selected.

First, before switching the external input mode of the television, an external device connected to the television is detected (S10).

A method for detecting an external device connected to a television may be detected by determining a signal input to an external input port of the television, and a specific method thereof is omitted in the present invention as a technique generally applied.

After detecting the external device connected to the television as described above, it is determined whether there is an input of the external input key to switch the external input mode while watching the television (S12).

In this case, when the external input key is input, each of the detected external devices is assigned a unique number, and then the list of detected external devices is displayed on the screen of the television through the OSD together with the unique number (S14).

For example, if VCR is detected at AV1, DVD is detected at COMP1, and STB is detected at COMP2 as an external device, as shown in FIG. The list of detected external devices is displayed.

At this time, if more external devices are detected, a unique number is additionally assigned and displayed.

The list of detected external devices is displayed together with the unique numbers assigned to the external devices, and then it is determined whether there is an input of a numeric key (S16).

At this time, if there is no input of the numeric key until a predetermined time elapses after the external input key is input, the external input mode switching is canceled (S24).

However, when a numeric key is input before a predetermined time elapses, for example, when '2' is input, as shown in FIG. 4, the cursor is moved to 'COMP1' to which the number '2' input from the detected external device is assigned. Is selected while moving (S18).

On the other hand, if you select an external device by entering the number key '2' and then enter a new number key '3', the cursor may be moved back to COMP2 to which the newly input number '3' is assigned.

In this way, the external device is directly selected through the numeric keys, and finally the input of the confirmation key for switching the external input mode is determined (S20).

At this time, if there is no input of the confirmation key until a predetermined time elapses after the numeric key is input, the external input mode switching is canceled (S26).

However, if a confirmation key is input before a predetermined time elapses, the controller switches to the selected external device and displays the output of the external device on the screen (S22).

That is, when the numeric key '2' is input from the above, the output of the DVD is displayed.

At this time, the external input key may be input again as the confirmation key.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand. Therefore, the technical protection scope of the present invention will be defined by the claims below.

1 is a block diagram showing an external input mode switching device of a general television.

2 is a flowchart illustrating a method of switching an external input mode of a television according to an embodiment of the present invention.

FIG. 3 is a screen illustrating a unique number assigned to an external device in FIG. 2.

FIG. 4 is a screen illustrating a state in which an external device is selected in FIG. 2.

   -Explanation of symbols for the main parts of the drawings-

10: micom

20: video processor

30: display driver

40: switching element

Claims (4)

Detecting an external device connected to the television and determining an input of an external input key for switching an external input mode; Displaying a list of the detected external devices by allocating a unique number to each of the detected external devices when the external input key is input; Determining an input of a numeric key while displaying the detected list of external devices; Selecting an external device corresponding to the detected unique number when the numeric key is input; And determining whether a confirmation key is input after selecting the external device, and switching to the selected external device. The method of claim 1, wherein the selecting of the external device comprises moving a cursor from the displayed list of external devices to the selected external device. The method of claim 1, wherein the external input mode switching is canceled when a predetermined time elapses when the numeric key is input or the confirmation key is input. The method of claim 1, wherein the confirmation key is the external input key.

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