KR20000033631A - Pip display method of auto-searched channel for tv - Google Patents

Abstract

PURPOSE: A PIP display method of auto- searched channel for TV is provided so that a user can easily arrange the channels after completion of the automatically searching by multi-displaying the automatically searched channels to the PIP screen. CONSTITUTION: A PIP display method of auto-searched channel for TV includes several steps. An automatic searching step is to display channel information memorized in a television on a screen sequentially(S200). A discriminating step is to discriminate whether the channel is a memorized channel, as a visible channel among the automatically searched channels(S300). A step is to store the discriminated channel in the memory part of a television (S400). A displaying step is to display the stored channel to a PIP screen(S600).

Description

PiP display method of auto search channel of television.

The present invention relates to a method of multi-displaying a screen of a channel stored in an auto search of a television as a PIP screen. Particularly, after a receivable channel is auto searched and a channel for receiving a video signal is stored in a memory unit of a television, the PIP display method of an auto search channel of a television in which images of the memorized channels are sequentially displayed on a multi-screen PIP screen. Picture in picture display method of auto-search channel for television).

The automatic search (auto search) channel information corresponding to the broadcast signal received from the television is displayed on the CRT while the television is turned on with respect to the channel information stored in the television, while the stored channel information is sequentially tuned. The channel in which the synchronization signal of the video signal is detected among the displayed channels is automatically stored in the memory unit of the television.

In this case, in the conventional memory channel display method, a channel displayed on a CRT during auto search displays a channel number on the screen as OSD characters of a specific color, and changes a color for a channel where an image signal is detected during scanning. Auto search is performed by displaying OSD text or increasing OSD text size.

For example, in the conventional art, when the power of the television is turned on, channel information stored in the memory, for example, CH1 to CH69, is automatically tuned, and a specific color is displayed at a predetermined position on the screen where the corresponding channel is displayed. The OSD text will be displayed. When the video signal is detected in CH2 during the sequential tuning process, the corresponding TV number such as CH2 or '02' is changed to yellow, for example, while displaying the television image on the screen and displayed as OSD text or text. By increasing the size of the display, the viewer knows that there is a video signal among all the channels to be tuned and memory it.

In order to check the channel information memorized by the above method, when the viewer operates the channel up / down key with a remote controller or the like, there is no video signal and the unmemored channel is not displayed, and the television image of the memorized channel is displayed on the screen. As a result, the viewer does not have to check whether there is a video signal received.

The conventional technology of the auto search is searched in the order of channel information of a television, which is pre-written and memorized in a television, and stores a channel in which a video signal is detected during the search, and at the same time changes the display of the channel number so that the viewer can check the user's information. For convenience, the channel with poor reception is also automatically stored, so there is a problem that the user must process the tuned channel one by one after the auto search ends.

The present invention is to solve the problems of the prior art, an object of the present invention is to provide a PIP display method of the auto-search channel of the television that can display the screen of the channel memorized during auto-search on the television multi-screen PIP It is.

As a technical idea for achieving the object of the present invention, in the PIP television having an auto-search and OSD display function, an auto-search process for sequentially displaying the channel information stored in the television on the screen, and the auto-searched channel A memory channel discrimination step of determining whether the channel is memorized as a viewable channel, a process of storing the channel determined as the memory channel in a memory unit of the television, and a process of displaying an image of the stored memory channel on a PIP multi-screen A PIP display method of an autosearch channel is provided.

Fig. 1 is a schematic block diagram of a PIP television with an auto search and OSD display function.

2 is a flowchart illustrating an example of a PIP display method of an autosearch channel according to the present invention.

3 is an explanatory diagram of an example of a state in which an image of a channel memorized by the method of FIG. 2 is displayed on a PIP screen.

<Description of the code | symbol about the principal part of drawing>

10 antenna 20 main tuner section

30: sub tuner unit 40: main image processing unit

50: sub image processing unit 60: main IC

70: video output unit 80: CRT

90: micom 100: memory

110: OSD processing unit 120: remote control receiver

130: remote control

Hereinafter, with reference to the accompanying drawings for the configuration and operation of the embodiment of the present invention will be described in detail.

1 is a schematic block diagram of a PIP television with auto search and preferred channel setting.

As shown in FIG. 1, a television having an auto search and channel setting function includes an antenna 10 for receiving a composite video signal of various channels transmitted from a transmitting station, and tuning of a television signal received from the antenna 10. Detects and amplifies the image intermediate frequency from the main tuner unit 20 and the sub tuner unit 30 that process high frequency amplification and the like, and the image signal processed by the main tuner unit 20 and the sub tuner unit 30. A main IC which performs Y / C separation, chromaticity processing and mixing processing on the main and sub image signals output from the image processing unit 40 and 50, and the main image processing unit 40 and the sub image processing unit 50. 60, a video output unit 70 for displaying a television signal on the CRT 80, a microcomputer 90 for controlling the television system, and various data information such as channel information connected to the microcomputer 90; Memory unit 100 for storing the, and OSD control unit 110 to display the OSD on the CRT (80) under the control of the microcomputer 90, and a remote control receiver 120 for receiving a command signal from the remote control 130 to apply to the microcomputer (90). .

First, in the process of auto-searching the reception channel in the television, channel information of CH1 to CH69 is stored in the memory unit 100 connected to the microcomputer 90 while the PIP function of the television is turned off. In order to the memory, the microcomputer 90 reads the channel information from the memory unit 100 in order, displays the television signal received from the main tuner unit 20 of the corresponding channel, and displays the channel information in the OSD processing unit. By displaying on CRT 80 using 110.

In addition, the user can view a channel that is memorized by changing the color of OSD characters on the display screen of the video signal of the corresponding channel while storing the channel in which the video signal is detected among the channels tuned at the time of auto search in the television. Has to be confirmed.

FIG. 2 is a flowchart of an example of a method for displaying auto-searched and stored channels on a PIP multi-screen in the PIP television having the auto-search function of FIG. 1.

As shown in FIG. 2, when the television is turned on, it is determined whether the video is in the auto search mode (S100), the channel information data stored in the memory unit of the television is read and tuned in sequence, and the video signal is received from the television signal received from the antenna. An auto-search execution process (S200) for reading channel information in which a synchronization signal is detected;

A memory channel determination step (S300) of determining whether to store and confirm whether the synchronization signal of the video signal is detected in the auto search execution step (S200);

In the memory channel determination process (S300), if the synchronization signal is not detected in the channel, the auto search execution process (S200) is repeated. If the synchronization signal is detected, the channel is stored in the memory unit of the television. Channel memory process (S400),

PIP execution process (S500) to turn on the PIP function of the television,

A memory channel main screen display process (S600) for displaying the channel memorized in the channel memory process (S400) on the main screen of the PIP screen;

A memory channel determining process of determining whether a received channel is a memory channel (S700);

If it is determined that the memory channel is not a memory channel in the memory channel determination process (S700), the auto-search execution process (S200) is repeated. If the memory channel is determined as a memory channel, the memory channel is stored in the memory unit and displayed on the main screen in the process S600. A multi-display process (S800) for displaying all channels on the sub screen and simultaneously displaying the current channel on the main screen;

When the auto search is terminated and the auto search is not terminated, the auto search end determination process (S900) is performed to repeat the memory channel determination process (S700).

When the television is turned on, the auto search process (S200) first reads the channel information data (CH1 to CH69) previously stored in the memory unit of the television, for example, the EEPROM, and tunes them in the order of the channel information data. Tune the television signal received from the screen. In this case, the television signal displayed on the screen is displayed while tuning all of the stored channel information data regardless of the channel having no video signal and the channel having the video signal.

The memory channel determination process (S300) is a process of determining whether a synchronization signal is detected in an image signal of a channel displayed in the auto search process (S200).

The channel memory process S400 is a process of storing a channel in which a synchronization signal is detected in the memory channel discrimination process S300 in the memory unit of the television.

The PIP execution process (S500) is to switch the display mode to a multi-screen, for example, a 13-split screen by a user's manipulation or by recognizing the auto search mode in order to multi-display the screen of the memorized channel. It's a process.

The memory channel main screen display process (S600) is a process of displaying the currently memorized channel information and the corresponding television image on the main screen of the divided PIP screen.

The memory channel determination process (S700) determines whether the synchronization signal of the video signal is detected in the currently received channel in order to repeat the above process. If the synchronization signal is not detected, the process is repeated and the synchronization signal is If detected, the channel information is stored in the memory unit.

In the multi-display process (S800), the channel immediately before being displayed on the main screen of the PIP screen is displayed by calling the sub screen in step S600, and the channel information and the image corresponding to the channel currently stored in the memory unit are displayed on the main screen. Display process.

In the auto search termination determination process (S900), all the memory channels are searched and stored in the memory unit, and at the same time, the previous channel on the main screen is switched to another sub-screen and displayed, and the current memory channel is displayed on the main screen. In order to perform the channel information previously stored in the memory unit, for example, CH1 to CH69 is searched to terminate the auto search process.

The user can delete a channel having a poor reception state of a memorized channel during the series of auto search channel PIP display by using the channel erase function key of the remote controller. Can erase bad channels.

3 illustrates an example of a state in which an auto-searched channel is displayed on a PIP screen of a television by the method of the present invention. As shown in FIG. 3, a channel currently auto searched and memorized on a PIP screen divided into 13 screens is displayed on the main screen 100, and a channel previously auto searched and memorized is displayed on a plurality of subscreens 200. It is becoming.

The channels CH32, CH36, and CH61 in the diagonal portion of FIG. 3 are screens with poor reception conditions, and have a high image noise. The user may delete the channels from the memory by operating a channel erase key such as a remote controller while watching the PIP screen during or after auto search. In addition, when a user wants to set and watch only a channel of his or her own preference, the user may view a multi-displayed PIP screen and store a favorite channel by directly using a channel setting key such as a remote controller.

As described above, the present invention relates to a television having a channel information memory means and a receiving channel automatic search function, comprising: an autosearch process of sequentially displaying channel information stored on the television on a screen; A memory channel discrimination process for determining whether the channel is memorized as a viewable channel, a process of storing the channel determined as the memory channel, and displaying the stored channel on the main screen of the PIP screen, and then displaying the memorized channel again on the main screen. The previous channel is displayed on the sub screen at the same time as it is displayed on the screen, so that the user of the tele debt system can easily process the poorly received channel among the auto-search channels being multi-displayed on the PIP screen. And also set your favorite channels Even if you wish there is an effect that it is possible to set a channel while a direct channel information being the multi-display.

Claims (1)

In a PIP television having channel information memory means and a receiving channel automatic search function, (a) When the television is turned on, it is determined whether it is in the auto search mode, and the channel information data stored in the memory unit of the television is read and tuned in sequence, and the channel information where the synchronization signal of the video signal is detected from the television signal received from the antenna. The process of running AutoSearch, (b) a memory channel discrimination step of determining whether to store and verify whether the synchronization signal of the video signal is detected in the process (a); (c) The channel memory process of repeating the process (a) if the channel in which the synchronization signal is not detected in step (c), and storing the corresponding channel in the memory unit of the television in the case of the channel where the synchronization signal is detected. and, (d) implementing the PIP to turn on the PIP function of the television; (e) displaying the memory channel main screen for displaying the channel memorized in step (c) on the main screen of the PIP screen; (f) a memory channel determining step of determining whether a channel received after step (e) is a memory channel; (g) If it is determined that the memory channel is not a memory channel in step (f), the process (a) is repeated, and if it is determined as a memory channel, it is stored in the memory unit and displayed on the main screen in step (e). A multi display process of displaying a channel on a sub screen and displaying a current channel on a main screen; and (h) determining whether or not the auto search is to end, and if the auto search is not to end, the auto search end determination process of repeating the step (f) is performed.