KR20080053007A - Display device and remote controller for control display device and method for turning channel using thereof - Google Patents

Abstract

An image device, a remote controller for controlling the image device, and a method for switching a channel using the same are provided to divide and switch a major channel and a minor channel to search for and move to a desired specific channel quickly and simply in a large number of channels, thereby shortening a channel switching rate and improving viewer's convenience. An image device(200) comprises a key input unit(210), a control unit(230), a channel switching unit(240), and a display unit(250). The key input unit outputs a major channel switching signal and a minor channel switching signal separately according to the operation of a user. The control unit recognizes a predetermined virtual channel according to a combination of the major channel switching signal and the minor channel switching signal outputted from the key input unit and outputs a channel switching signal corresponding to the predetermined virtual channel. The channel switching unit switches a current physical channel into a predetermined channel according to the channel switching signal outputted from the control unit. The display unit displays the image of the predetermined channel switched by the channel switching unit.

Description

Display device and remote controller for control Display device and method for turning channel using equivalent}

1 is a block diagram showing a connection state of a video device and a remote control for controlling the video device according to the present invention.

2 is a block diagram illustrating a video device according to the present invention.

3 is a block diagram illustrating a remote controller for controlling a video device according to the present invention.

4A and 4B are screen configuration diagrams showing channel information displayed on a video device;

5 is an external view of a remote control according to an embodiment of the present invention;

6 is a control flowchart illustrating a channel switching method according to the configuration of the remote controller of FIG. 5.

7 is an external view of a remote control according to another embodiment of the present invention;

8 is a control flowchart illustrating a channel switching method according to the configuration of the remote controller of FIG. 7.

<Description of Symbols for Major Parts of Drawings>

100: remote control 200: video equipment

210: key input unit 220: signal receiving unit

230: control unit 240: channel switching unit

250: display unit

The present invention relates to a video device, and more particularly, to a video device for conveniently switching channels of a video device, a remote control for controlling the video device, and a channel switching method using the same.

The imaging apparatus is provided with various function keys for turning on / off the power, changing the channel and volume, and the like.

In order to provide convenience in using a function key provided in a video device, a remote controller that can remotely control the video device by transmitting an infrared signal is generally used.

Also, in general, the front panel or the remote control of the video device has a power key for turning on or off the power of the video device, a channel increasing key and a channel decreasing key for changing a channel, a volume increasing key and a volume decreasing key for changing a volume. Etc. are provided.

As described above, a brief description will be given of a method of switching channels of a video device by operating various function keys.

If you want to move to a higher number than the current channel number of the video device, press the channel increase key repeatedly until the desired channel appears. If you want to move to a number lower than the current channel number, press the channel decrease key until the desired channel appears. Press repeatedly. At this time, each time the channel increasing key and channel decreasing key are pressed, the channel is changed by one. Meanwhile, when the channel number to be moved is known, the number key corresponding to the channel number may be pressed to move directly to the channel.

As in the related art, a method of sequentially moving channels one by one is not a problem when the number of channels is small, such as general broadcasting. However, when a large number of channels are gradually created due to the increase of broadcasting stations and the trend of switching to a digital broadcasting environment, There is a limit in the conventional channel movement method.

For example, the number of channels in the cable broadcasting environment currently provided is about 100. Since most users cannot memorize the channel number, each channel is moved one by one using the channel increasing key and the channel decreasing key. Searching for a desired channel.

Moreover, when the digital broadcasting environment is switched, the number of channels is gradually increased to hundreds because the virtual channel number changes from time to time, and one channel can broadcast several channels at the same time.

Therefore, in the conventional channel switching method using a video device and a remote control, the user needs to memorize all the channels according to the increasing number of channels or change the channels one by one so that it takes too much time to search for a desired channel. there was.

Accordingly, the present invention is to solve the above-mentioned conventional problems, and to change the channel by distinguishing the major channel and the minor channel, the video device to quickly and easily search and move the desired specific channel of a large number of channels And a remote controller for controlling the video device and a channel switching method using the same.

According to an aspect of the present invention, a video device includes: a key input unit configured to output a major channel change signal and a minor channel change signal according to a user's manipulation; A controller which recognizes a predetermined virtual channel according to a combination of a major channel change signal and a minor channel change signal output from the key input unit, and outputs a channel change signal corresponding thereto; A channel switching unit for converting a current physical channel into a predetermined channel according to a channel change signal output from the controller; And a display unit which displays an image of a predetermined channel switched by the channel switching unit.

The control unit; The minor channel is changed within the virtual channel range of the corresponding major channel according to the minor channel change signal input from the key input unit.

In addition, the remote control for controlling the video device according to the present invention, the remote control for controlling the video device, the key input unit for outputting a major channel change signal and a minor channel change signal according to the user's operation; A controller which recognizes a predetermined virtual channel according to a combination of a major channel change signal and a minor channel change signal output from the key input unit, and outputs a channel change signal corresponding thereto; And a signal transmitter for converting a channel change signal output from the controller into a wireless transmission signal and transmitting the signal to a video device.

The key input unit may include a major channel up / down key for generating a major channel change signal; It may include a minor channel up / down key for generating a minor channel change signal.

The key input unit may include a channel selection key for selecting a major or minor channel; And a channel up / down key for selectively generating each major channel change signal or a minor channel change signal according to the input of the channel selection key.

The control unit; The minor channel is changed within the virtual channel range of the corresponding major channel according to the minor channel change signal input from the key input unit.

In addition, in the channel switching method using the video device and the remote control according to the present invention, in the channel switching method using the video device and the remote control, a key for outputting a major channel change signal and a minor channel change signal according to the user's operation, respectively Input step; A control step of recognizing a predetermined virtual channel according to a combination of a major channel change signal and a minor channel change signal output from the key input step, and outputting a corresponding channel change signal; A channel switching step of switching a current physical channel to a predetermined channel according to the channel change signal output from the control step; And a display step of displaying an image of a predetermined channel switched by the channel switching step.

The control step; The minor channel is controlled to be changed within a virtual channel range of the corresponding major channel according to the minor channel change signal inputted from the key input step.

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

1 is a block diagram showing a connection state of the video device and the remote control for controlling the video device according to the invention, Figure 2 is a block diagram showing the video device according to the invention, Figure 3 is a video device according to the invention It is a block block diagram which shows the remote control to control.

Currently, from analog broadcasting to digital (DTV) broadcasting all over the world, only one broadcasting channel exists in one channel frequency band (ex: 6MHz) in analog broadcasting. The broadcast may be divided into three subchannels (MINOR channels). In order to distinguish these sub-channels in DTV broadcasting, the MAJOR and MINOR channel concepts are applied, and different numbers are assigned to the PSIP information of the transport stream for each channel program.

 Station name  Physical channel Virtual channel (major channel number-minor channel number)      Digital channel  SBS  68 6-1 6-2 6-3 ...  KBS  63 7-1 7-2 7-3 ...  MBC  61 11-1 11-2 11-3 ...

As shown in Table 1, the front number of the virtual channel, that is, the 6, 7, and 11 are the major channel numbers, and the back numbers 1, 2, 3, 4, etc. (-) attached to the back are minor channel numbers. For example, the major channel is set to a unique number for each broadcasting station, and the minor channel can assign a random number of 0 to 999 to the broadcasting station itself.

The present invention changes the channel by dividing the major channel and the minor channel as described above, so that it is possible to quickly and easily search for and move a specific specific channel among a large number of channels.

As shown in FIG. 2, the imaging apparatus 200 according to the present invention includes a key input unit 210, a controller 230, a channel switcher 240, and a display unit 250.

The key input unit 210 outputs a major channel change signal and a minor channel change signal, respectively, according to a user's manipulation.

The controller 230 recognizes a predetermined virtual channel according to a combination of the major channel change signal and the minor channel change signal output from the key input unit 210, and outputs a corresponding channel change signal. In this case, the controller 230 controls the minor channel to be changed within the virtual channel range of the corresponding major channel according to the minor channel change signal input from the key input unit 210.

The channel switching unit 240 converts the current physical channel into a predetermined channel according to the channel change signal output from the controller 230.

The display unit 250 displays an image of a predetermined channel switched by the channel switching unit 240.

Reference numeral 220 is a signal receiver for receiving a remote control signal.

In addition, as shown in Figure 3, the remote control for controlling the video device according to the present invention, in the remote control 100 for controlling the video device, the key input unit 110, the control unit 120, the signal transmitter 130 It consists of.

The key input unit 110 outputs a major channel change signal and a minor channel change signal, respectively, according to a user's manipulation. The output signal of the key input unit 110 is preferably an RF signal or an infrared signal.

The controller 120 recognizes a predetermined virtual channel according to a combination of the major channel change signal and the minor channel change signal output from the key input unit 110, and outputs a corresponding channel change signal.

The signal transmitter 130 converts the channel change signal output from the controller 120 into a wireless transmission signal and transmits the signal to the video device 200.

4A and 4B are screen configuration diagrams showing a state in which channel information is displayed on a video device.

Currently developed and commercially available DTVs can be tuned to up to 999 minor channels in one major channel number, and more than 20 minors for audio only channels under field signal conditions such as the United States. There are also various cases of broadcasting divided into channels.

As shown, for example, if there is a broadcast channel having a major channel number of 20 and a minor channel consisting of 30 sub-channels, the channel tuning is completed. 20-1, 20-2, 20-3 .. Thirty channel numbers 20-29 and 20-30 are stored in the memory. At this time, the viewer must press the channel up / down button more than 30 times to move beyond channel 20 and move to channel 21 or more. If more than 21 channels are configured with the same number of sub-channels, it will take longer.

In general, in view of the viewers using the channel up / down buttons most frequently when moving a channel, a part that takes a long time to move to a desired channel with one channel up / down button is not inconvenient for the viewer.

Therefore, the present invention changes the channel by dividing the major channel and the minor channel, so that it is possible to quickly and easily search and move to a specific specific channel among a large number of channels.

5 is an external view of a remote controller according to an embodiment of the present invention, and FIG. 6 is a control flowchart illustrating a channel switching method according to the configuration of the remote controller of FIG. 5.

As shown in FIG. 5, the key input unit 110 of the present invention includes a major channel up / down key 110a for generating a major channel change signal; A minor channel up / down key 110b for generating a minor channel change signal may be included.

According to such a configuration, as shown in FIG. 6, in the channel switching method using the video device and the remote control according to the present invention, first, a key for outputting a major channel change signal and a minor channel change signal according to a user's operation, respectively. The input step is performed (S101).

In this case, as illustrated in FIG. 5, the user may selectively input a major channel up / down key 110a and a minor channel up / down key 110b of the remote controller 100 (S102) (S103).

Thereafter, a control step of recognizing a predetermined virtual channel according to a combination of the major channel change signal and the minor channel change signal output from the key input step and outputting the corresponding channel change signal is performed (S103 to S104) ( S107-S108).

This process is performed by the control unit 120. For this purpose, the control unit 120 preferably uses a conventional microcomputer or a central processing unit (CPU) having a memory, operation, and determination function.

Therefore, when the major channel up / down key 110a of the remote controller 100 is input, the controller 120 reads a channel map of a memory (not shown) to determine the major channel order and sequentially accordingly. The channel is changed (S103 to S104).

In addition, when the minor channel up / down key 110b of the remote controller 100 is input, the channel map of the memory (not shown) is read to determine the order of the minor channels, and the channels are sequentially changed accordingly (S107). ~ S108).

Thereafter, a predetermined virtual channel is recognized according to the combination of the major channel change signal and the minor channel change signal, and the corresponding channel change signal is output to the channel switcher 240.

The channel switching unit 240 performs a channel switching step of switching the current physical channel to a predetermined channel according to the channel change signal output from the control step (S105) (S109).

Thereafter, the display unit 250 performs a display step of displaying an image of a predetermined channel switched by the channel switching step, thereby quickly moving and displaying a desired channel.

Here, the control step; The minor channel is changed within the virtual channel range of the corresponding major channel according to the minor channel change signal inputted from the key input step.

For example, in the screen as shown in FIG. 4A, the major channels are changed in the order of 80, 82, 83, 84, and 85 according to the major channel change signal input from the key input unit 110, and the minor channel change signal. As an example, if the major channel is 80, then minus 80-5, 80-7, 80-769, 80-772, 80-774, 80-775 ... in the virtual channel range of the major channel. To change the channel.

7 is an external view of a remote controller according to another embodiment of the present invention, and FIG. 8 is a control flowchart illustrating a channel switching method according to the configuration of the remote controller of FIG. 7.

As shown in FIG. 7, the key input unit 110 of the present invention includes: a channel selection key 112 for selecting a major or minor channel; A channel up / down key 113 for selectively generating each major channel change signal or a minor channel change signal according to the input of the channel selection key 112 may be included.

According to such a configuration, as shown in FIG. 8, in the channel switching method using the video device and the remote control according to the present invention, first, a key for outputting a major channel change signal and a minor channel change signal according to a user's operation, respectively. The input step is performed (S201).

In this case, as shown in FIG. 7, the user inputs a channel selection key 112 for selecting a major or minor channel of the remote controller 100, selects a major or minor channel, and then selects a channel up / down key 113. You can optionally enter the major or minor channel by entering).

Here, the channel selection key 112 operates as an on / off switch or a toggle key so that the major channel or the minor channel is changed according to the pressed state.

Thereafter, a control step of recognizing a predetermined virtual channel according to a combination of the major channel change signal and the minor channel change signal output from the key input step and outputting the corresponding channel change signal is performed (S203 to S204) ( S207-S208).

This process is performed by the control unit 120. For this purpose, the control unit 120 preferably uses a conventional microcomputer or a central processing unit (CPU) having a memory, operation, and determination function.

Therefore, when the channel up / down key 113 is input while the major channel is selected by the channel selection key 112 of the remote controller 100, the controller 120 reads a channel map of a memory (not shown). ) To determine the major channel order and sequentially change the major channels (S203 to S204).

In addition, when the channel up / down key 113 is input while the minor channel is selected by the channel select key 112 of the remote controller 100, the channel map of the memory (not shown) is read to order the minor channels. Determine and change the channel accordingly (S207 ~ S208).

Thereafter, the controller 120 recognizes a predetermined virtual channel according to a combination of the major channel change signal and the minor channel change signal, and outputs the corresponding channel change signal to the channel switcher 240.

The channel switching unit 240 performs a channel switching step of switching the current physical channel to a predetermined channel according to the channel change signal output from the control step (S205) (S209).

Thereafter, the display unit 250 performs a display step of displaying an image of a predetermined channel switched by the channel switching step, thereby quickly moving and displaying a desired channel.

Here, too, the control step; It is preferable to control the minor channel to be changed within the virtual channel range of the corresponding major channel according to the minor channel change signal inputted from the key input step (see FIG. 4A).

The present invention described above can be applied not only to video devices using flat panel display devices such as PDPs and LCDs, but also to projection TVs, general TVs, monitors, and other video devices, and the same applies to analog TVs, digital TVs, and satellite TVs. can do. In addition, it can of course be applied to all NTSC, PAL, SECAM method.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Anyone skilled in the art can, of course, make various changes and make such changes as fall within the stated claims.

As described above, according to the remote controller for controlling the video device and the video device and the channel switching method using the same according to the present invention, the desired channel can be quickly selected from a large number of channels by changing the channel by separating the major channel and the minor channel. By making it easy to search and move, there is an effect of reducing the speed of channel switching and promoting the convenience of the viewer.

Claims (8)

A key input unit for outputting a major channel change signal and a minor channel change signal according to a user's operation; A controller which recognizes a predetermined virtual channel according to a combination of a major channel change signal and a minor channel change signal output from the key input unit, and outputs a channel change signal corresponding thereto; A channel switching unit for converting a current physical channel into a predetermined channel according to a channel change signal output from the controller; And And a display unit which displays an image of a predetermined channel switched by the channel switching unit. The method of claim 1, The control unit; And controlling a minor channel to be changed within a virtual channel range of a corresponding major channel according to a minor channel change signal input from the key input unit. In the remote control for controlling the video device, A key input unit for outputting a major channel change signal and a minor channel change signal according to a user's operation; A controller which recognizes a predetermined virtual channel according to a combination of a major channel change signal and a minor channel change signal output from the key input unit, and outputs a channel change signal corresponding thereto; And a signal transmitter for converting the channel change signal output from the controller into a wireless transmission signal and transmitting the signal to the video apparatus. The method of claim 3, wherein The key input unit, A major channel up / down key for generating a major channel change signal; And a minor channel up / down key for generating a minor channel change signal. The method of claim 3, wherein The key input unit, Channel selection keys for selecting major or minor channels; And a channel up / down key for selectively generating each major channel change signal or a minor channel change signal according to the input of the channel selection key. The method of claim 3, wherein The control unit; And controlling the minor channel to be changed within a virtual channel range of the corresponding major channel according to the minor channel change signal input from the key input unit. In the video device and the channel switching method using the remote control, A key input step of outputting a major channel change signal and a minor channel change signal respectively according to a user's operation; A control step of recognizing a predetermined virtual channel according to a combination of a major channel change signal and a minor channel change signal output from the key input step, and outputting a corresponding channel change signal; A channel switching step of switching a current physical channel to a predetermined channel according to the channel change signal output from the control step; And And a display step of displaying an image of a predetermined channel switched by the channel switching step. The method of claim 7, wherein The control step; And changing the minor channel within the virtual channel range of the corresponding major channel according to the minor channel change signal inputted from the key input step.

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