KR20060095200A - Method for providing mode switching in image processor - Google Patents

Abstract

The present invention relates to a mode switching method in a video device having a mode switching key and a mode return key and outputting a video signal in a first mode, wherein a key signal for switching from the mode switching key to the second mode is applied. Determining whether the second mode switch key signal is applied, temporarily storing information of the first mode and then switching the video device to the second mode, and whether the mode return key signal is applied from the mode return key. And determining, when the mode return key signal is applied, reading the stored first mode information and converting the video device into the first mode based on the read information. According to the present invention, it is easy to switch modes of an image device, thereby increasing convenience of use, and improving operation reliability of the device.

Description

How to switch mode in video equipment {METHOD FOR PROVIDING MODE SWITCHING IN IMAGE PROCESSOR}

1 is a schematic block diagram of an imaging apparatus for implementing a mode switching method according to the present invention;

2 is a flowchart of a mode switching process in an imaging apparatus implemented according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: Mode switch key 12: Mode return key

102: control unit 104: mode switching unit

106: memory unit

The present invention relates to a video mode control technique of a video device, and more particularly, to a mode switching method in a video device suitable for immediately returning to the mode before the mode change by using a hot-key.

In general, changing the mode of video currently being viewed on a video product causes the video signal of the currently viewed mode to be muted.

For example, if the current user is watching in S-video mode and the mode is changed to YPbPr type through the setup menu inside the product, the currently viewed S-video signal is muted and the external input of the TV is muted. Must be changed to YPbPr mode before you can watch the video.

If the user is used to using a video product, it may not be a big problem, but for a user who is using the product for the first time, the video signal may be muted suddenly, which may cause confusion in the operation of the product. Moreover, once the screen is no longer visible, the screen itself cannot be displayed again to return to the previous mode, which is inconvenient to use and a possibility of accidentally changing the video mode occurs.

The present invention is implemented to solve the inconvenience and problems of the prior art described above, in the video device to improve the ease of use by providing a hot key to return to the previous mode on the front panel or remote control of the video device The purpose is to provide a method of mode switching.

According to a preferred embodiment of the present invention for achieving the above object, a mode switching method in an image device having a mode switching key and a mode return key, respectively, and outputting a video signal in a first mode, the method comprising: Determining whether a key signal for switching to the second mode is applied; and if the second mode switching key signal is applied, temporarily storing the information of the first mode and then switching the image device to the second mode. And determining whether a mode return key signal is applied from the mode return key, and when the mode return key signal is applied, read the stored first mode information and set the video device to a first mode based on the read information. It provides a mode switching method in a video device comprising the step of switching to.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

FIG. 1 is a schematic block diagram of a video device for implementing a mode switching method according to the present invention, and includes a key input unit 100, a control unit 102, a mode switch unit 104, and a memory unit 106. .

The key input unit 100 is a key input means formed on a front panel or a remote controller of an image device. The key input unit 100 generates a key signal corresponding to a key input action of a user and applies it to the controller 102.

The mode input key 10 and the mode return key 12 are provided in the key input unit 100, and generate a key signal for changing an external input mode of the video device. At this time, the mode return key 12 according to the present embodiment performs a function of a "hot key" and is means for generating a key signal for returning to the immediately previous mode. For example, when changing from the first mode (S-video mode) to the second mode (YPbPr mode), if the mode return key 12 is entered, the user can immediately return to the first mode without a separate user mode selection process. Generates a key signal

The control unit 102 is a control means for controlling the overall control operation of the imaging apparatus according to the present invention, for example, may be configured as a micro-computer. The controller 102 outputs a control signal for driving the video device according to the key input signal of the key input unit 100 described above. In addition, the control unit 102 temporarily stores the first mode information in the memory unit 106 when the first mode is switched from the first mode to the second mode by the key input of the key input unit 100 according to the present embodiment. When the return key 12 is applied, it reads the stored first mode information and outputs a mode control signal for switching the current mode of the video device to the first mode.

The mode switching unit 104 performs a function of switching the external input mode of the video device according to the control signal of the control unit 102.

The memory unit 106 may be constituted by storage means provided in the image device, for example, RAM, and temporarily stores external input mode information of the image device under the control of the controller 102. Thereafter, the controller 102 serves to provide stored external input mode information at the request of the controller 102.

Hereinafter, with reference to the above-described configuration, with reference to the flowchart of Figure 2 attached to the mode switching process using a hot key in the video device according to an embodiment of the present invention will be described in detail.

As shown in FIG. 2, first, in step S200, the control unit 102 sets the video device to a first mode, for example, an S-video mode, through the mode switching unit 104.

At this time, in step S202, the control unit 102 determines whether a key signal for switching from the mode switching key 10 of the key input unit 100 to the second mode, for example, the YPbPr mode, is applied.

As a result of the determination in step S202, when the second mode switch key signal is applied, the control unit 102 proceeds to step S204 and the memory unit 106 stores the above-described first mode information, that is, S-video mode information. Store in

The control unit 102 then proceeds to step S206 and controls the mode switching unit 104 to switch to the second mode corresponding to the input of the mode switching key 10.

At this time, the controller 102 determines whether the mode return key signal is applied from the mode return key 12 of the key input unit 100 as in step S208.

As a result of the determination in step S208, when the mode return key signal is applied, the control unit 102 proceeds to step S210 to read the first mode information from the memory unit 106 described above, and based on the read information. The switching unit 104 is controlled to switch the video device to the first mode.

As described above, the present invention implements an automatic return to the previous mode with a single key input while the external input mode is changed in the video device.

While many details are set forth in the foregoing description, they should be construed as illustrative of preferred embodiments, rather than to limit the scope of the invention. For example, it will be apparent to those skilled in the art that various external input modes that may be connected to an image device as well as the S-video mode or the YPbPr mode may be applied. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the technical spirit described in the claims.

According to the present invention, it is easy to switch modes of an image device, thereby increasing convenience of use, and improving operation reliability of the device.

Claims (3)

A mode switching method in a video apparatus having a mode switching key and a mode return key, respectively, and outputting a video signal in a first mode, Determining whether a key signal for switching from the mode switch key to the second mode is applied; Switching the video device to a second mode after temporarily storing the information of the first mode when the second mode switch key signal is applied; Determining whether a mode return key signal is applied from the mode return key; Reading the stored first mode information and converting the video device to a first mode based on the read information when the mode return key signal is applied; Mode switching method in a video device comprising a. The method of claim 1, And the mode return key is a hot key. The method of claim 1, The first mode is an S-video mode, and the second mode is a YPbPr mode.

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