KR0168579B1 - Screen controlling apparatus using a beam reflection recognition two screen viewing in television - Google Patents

Abstract

The present invention relates to a screen control device by light detection when watching two screens of a television, and in particular, a screen of a portion reflected when light is irradiated from a certain direction to one screen while watching a predetermined two screen mode with a television receiver. Relates to a device for automatically adjusting the picture quality.

That is, the main control unit 110 for outputting a control signal as a signal input from the light sensing sensor 110, a plurality of optical sensor 110 configured on one side of the television receiver, and the main control unit 110 of The convenience of the viewer is increased by configuring a control data storage unit 120 in which control data for controlling the image quality of the main screen or the sub-screen is controlled by the control signal.

Description

Screen control device by light reflection recognition when watching two screens of TV

1 is a block diagram showing the configuration of a conventional television receiver for outputting a main / sub picture.

Figure 2 is a block diagram of a screen control apparatus by the light detection when watching two screens of the TV according to the present invention.

3 is a flow chart related to the screen adjustment apparatus by detecting light when watching two screens of the TV according to the present invention.

* Explanation of symbols for main parts of the drawings

1,4 antenna 2,5 tuner

3,6: intermediate frequency amplifier 10: main signal processor

11 A / D converter 12 Mixer

13 D / A converter 14: voice amplifier

15: speaker 16: CRT drive unit

17: CRT 20: Two screen / PIP processing module

30: remote control 31: receiver

32,100: main controller 33: OSD generator

110: light detection sensor 120: control data storage

The present invention relates to a screen control device by light detection when watching two screens of a television, and in particular, a screen of a portion reflected when light is irradiated from a certain direction to one screen while watching a predetermined two screen mode with a television receiver. A device for automatically adjusting the picture quality.

In general, a television is divided into a color signal, a contrast signal, and a synchronization signal, which are video signals. When the contrast signal and the color signal are mixed and converted, an image is formed in the CRT. The synchronization signal is a signal of an image transmitted from a broadcasting station, which represents one picture as 525 lines, which may be referred to as a conversion device necessary to prevent each of these lines from being disturbed on the CRT.

In other words, it is the TV screen that we are seeing that is transmitted through lines and shown as a picture. The station sends 30 screens per second to the receiver, and the number of lines (scanning lines) that make up one screen per second is drawn as 525 strands X 30 scenes = 15,750 strands.

Therefore, since the contrast of the same place changes every 1/30 second, the movement can be fully expressed.

In short, the basic principle of television is hidden in transmission and reception. The first process is to divide a single image into pixels of a pixel unit, photoelectrically convert one by one in a certain order, and then send them one by one. Then, the receiving side, on the contrary, changes the light in the electricity, and thus becomes the original image. This process is called an injection, and the injection is repeated horizontally from the upper left to the lower right of the screen to complete one injection.

This is the process by which the program produced on the broadcasting station can be seen in the same place in the viewer's desired place.

Conventionally, a television receiver that outputs two screens or has a picture in picture (PIP) function includes first and second antennas (1) and (4) for receiving an airwave broadcasting signal, as shown in the attached first diagram. And first and second tuners 2 and 5 for tuning the broadcast signal received by the second antenna 1 and 4, respectively, and output from the first and second tuners 2 and 5, respectively. First and second intermediate frequency amplifiers 3 and 6 for amplifying an intermediate frequency signal of the video signal; and an image intermediate frequency signal PIF and an audio intermediate frequency signal outputted from the first intermediate frequency amplifier 3; A main signal processor 10 for processing SIF, a voice amplifier 14 for outputting a voice signal output from the main signal processor 10 to the speaker 15, and an output from the main signal processor 10; A CRT driver 16 for outputting the video signal on the CRT 17, an image intermediate frequency signal PIF and an audio intermediate frequency signal SIF output from the second intermediate frequency amplifier 6; It consists of a two screen / PIP processing module 20 for processing.

In addition, the viewer receives a remote control 30 for controlling the output volume and channel switching or other devices remotely, and receiving an infrared signal transmitted from the remote control 30 to convert it into an electrical signal and outputs it. Receiving unit 31, corresponding to the main control unit 32 for controlling the overall device in accordance with the code signal input from the receiving unit 31, and corresponding to the control signal to be taken in accordance with a predetermined control signal from the main control unit 32 By outputting predetermined on-screen display pattern data, an OSD generator 33 is provided for informing the user of the overall main operation status of the device such as channel switching or volume control.

The main signal processor 10 includes an A / D converter 11 for converting an intermediate frequency signal, which is an analog signal input from the first intermediate frequency amplifier 4, into a digital signal, and the A / D converter ( 11) and the mixer 12 for processing signals inputted from the two screen / PIP processing module unit 20 and the OSD generating unit, and the D / D for converting and outputting the digital signal output from the mixer 13 into an analog signal. A conversion section 13 is made up.

That is, in the television having the above-described configuration, when the viewer selects a channel with a plurality of selection buttons configured on the remote controller 30 or selects the volume, the image quality, or the function of the voice, the selected channel is executed. The channel broadcast signal tuned according to the control is processed by the main signal processing unit 10 and the two screen / PIP processing module unit 20 to output audio and video signals through the CRT 17 and the speaker 15. .

In this regard, when the viewer is watching a television, light is irradiated from a certain direction, and the screen of one side is reflected, so that the viewer cannot see the light well. Eliminate light Alternatively, when light is reflected toward the main screen, there are inconveniences such as switching the positions of the main screen and the sub-screen or moving the position away from the incident light when the viewer is empty.

That is, the light irradiated from one side of the television obstructs the broadcast that is reflected on the CRT screen, thereby lowering the viewing efficiency and causing the viewer to be tired.

The present invention has been made in view of the above-described problems, and when the television receiver is watching a light in a predetermined two-screen mode, the image quality of the screen of the reflected part is automatically reflected when light is irradiated and reflected from a certain direction to one screen. The purpose is to adjust.

According to an embodiment of the present invention, a screen control apparatus using light sensing when watching a double screen of a television according to the present invention includes a main signal processor for processing a detected video and audio signal based on a broadcast signal received by an antenna, and two. A television receiver equipped with a screen / PIP processing module, comprising: an optical sensor composed of a plurality of optical sensors on one side of the television receiver, a main controller for outputting a control signal from a signal input from the optical sensor, and a control of the main controller It is characterized by including a control data storage unit with control data for controlling the image quality of the main screen or sub-screen as a signal.

That is, according to the present invention having the above-described configuration, when light is irradiated from one side while the viewer watches the two screens and is reflected on the screen, the image quality of the reflected screen is automatically adjusted to increase convenience for the viewer.

Hereinafter, an embodiment according to the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a block diagram of a screen control apparatus using light sensing when viewing two screens of a television according to the present invention. FIG. 2 is denoted by the same reference numerals for the same elements configured in FIG. Omit.

The reference numeral 11 of FIG. 2 is a light sensing sensor configured to have a plurality on one side of the television receiver to sense light irradiated from a plurality of directions, and 100 is a sensing signal input from the light sensing sensor 110. By controlling the main signal processing unit 10 and the two screen / PIP processing module 20 to output a control signal for adjusting the image quality of the screen.

In addition, reference numeral 120 is a control data storage unit in which control data for controlling the image quality of the screen by the main control unit 100 is detected by the detection signal detected by the light detection sensor 110.

According to the present invention configured as described above, when a viewer views two screens in a brown or vertical screen state through a television receiver, a predetermined amount of light is irradiated from one side of the television receiver and outputted on the CRT 17. The light irradiated on the screen is reflected. At this time, the light detection sensor 110 mounted on one side of the television receiver detects the irradiated light and inputs the detection signal to the main control unit 100.

The main control unit (2) controls the main signal processing unit (10) and the two screen / PIP processing module unit (20) to adjust the image quality of the screen to which the light is irradiated by the input detection signal. Brightness, contrast and RGB color are each adjusted to a predetermined level, which is automatically adjusted in a predetermined level unit by the data of the control data storage unit 120.

When viewing the two screens, the light sensor detects the light irradiated to adjust the image quality of the irradiated position, thereby providing convenience to the viewer.

Referring to the flow chart of the screen adjustment apparatus by the light detection when watching the two screens of the television of FIG. 3, the main control unit 120 is normally operated in a state where the television receiver is turned on. The broadcast signal of the television is reproduced (S201).

In addition, the main control unit 120 determines whether the two screens are being viewed at the same time (S202), and determines whether the light sensor 110 detects the light irradiated from a certain distance (S203).

At this time, the signal detected by the plurality of optical sensor 110 mounted on one side of the television receiver is output to the main control unit 120, the main control unit 120 is the main signal processing unit 10 and the two screen / PIP processing module Through the sub 20, the quality of the main screen and the sub screen or the entire screen is adjusted (S204).

That is, the light sensor detects when the light emitted from a certain position or angle is reflected on the screen even in the two screens output on the CRT or in a normal one screen state, and the detected signal is controlled by the main controller. The brightness and contrast, or RGB color of the automatically adjusted to enhance the viewer's convenience.

In addition, this invention is not limited to the said Example, It can implement in a various deformation | transformation in the range which does not deviate from the technical summary of this invention.

As described above, in the exemplary embodiment of the present invention, the image quality is fixed to minimize the reflection of the screen reflected by the light reflected on the CRT screen by detecting light irradiated from a predetermined angle from a plurality of light detection sensors mounted on one side of the television receiver. By adjusting the level, it is effective to improve the function of the television and the convenience of the viewer.

Claims (1)

A television receiver comprising a main signal processing unit for processing video and audio signals detected on the basis of a broadcast signal received by an antenna, and a two-screen / PIP processing module unit, comprising: a plurality of optical sensing sensors on one side of the television receiver; And a control data storage unit having a built-in control data for outputting a control scene hole with a signal input from the optical sensor and a control data for controlling the image quality of the main screen or sub-screen with the control signal of the main control unit. Screen control device by light detection when watching two screens of the TV.