KR0141857B1 - Picture control function with television receiver using sub-picture - Google Patents

Abstract

The present invention provides a reference basis in performing a screen adjustment by outputting an adjusted screen adjustment standard pattern through a sub-screen and an adjustable screen adjustment pattern through a main screen. A television receiver having a screen adjustment function using a screen, comprising: an image processor for processing a video signal to enable sub-picture processing on a received broadcast signal; and color tone signals R and G output from the video processor. In a television receiver having a CRT driving unit configured to provide a video screen for a main screen and a sub-screen by driving a CRT of a rear stage based on the B and the luminance signal Y; Function selection key for selecting and inputting a screen adjustment command, OSD pattern memory for storing OSD pattern data for a predetermined screen adjustment pattern to be output to the main screen and sub-screen when the screen adjustment function is selected, and according to a predetermined control signal A first OSD generating circuit for outputting a color tone signal corresponding to the main screen side OSD pattern stored in the OSD pattern memory to the image processor, and a color tone signal corresponding to the sub-screen side OSD pattern stored in the OSD pattern memory according to a predetermined control signal; The second OSD generation circuit outputs to the image processing unit, and when a screen adjustment command is input through the screen adjustment function selection key, the entire device is driven to output predetermined OSD patterns for screen adjustment through the main screen and the sub screen, respectively. Control means for controlling so as to comprise a microprocessor.

Description

TV receiver with screen adjustment function using sub picture

1 is a block diagram showing the internal configuration of a typical television receiver.

2 is a block diagram showing the internal configuration of a television receiver having a screen adjustment function using a sub-screen according to an embodiment of the present invention.

3 is a diagram illustrating a screen output state of an OSD pattern for screen adjustment output to a main screen and a sub-screen.

* Explanation of symbols for main parts of the drawings

1: antenna 2: tuner (TUNER)

3: IF amplification section 4: P / S separation section

5: audio signal detector 6: video signal detector

7, 70: remote control device 8, 80: receiver

9, 90: Microprocessor 10: A / V connection terminal

11: A / V switching part 12: Voice processing part

13, 29: voice amplifier 14, 30: speaker

15: OSD generator 16: Image processing unit

17: Mixer 18, 20: CRT drive section

19, 30: CRT20: switching part

22: first tuner 23: first IF amplifier

24: first P / S separator 25: first video signal detector

26: first voice signal detector 27: second voice processor

28: first audio processor 32: second tuner

33: second IF amplifier 34: the second P / S separation unit

35: second video signal detector 36: second audio signal detector

40: OSD pattern storage section 41: First OSD generating section

42: Second OSD occurrence

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver having a sub picture output (PIP) function, and in particular, a user can output a contracted standard picture pattern through the sub picture and an adjustable picture pattern through the main picture. The present invention relates to a television receiver having a screen adjustment function using a sub-screen which can provide a reference basis in performing the screen adjustment.

In general, a user watching a television broadcast adjusts various options related to video and audio outputs according to his or her personal preferences, thereby setting the environment most suitable for viewing.

In addition, the user can automatically turn on / off the timer by including a display state that is set by the user, such as output states such as color tone, brightness, tint, sharpness, and contrast. The off time is a setting state, the connection and output state of the external A / V equipment, etc. can be outputted on the screen as needed, Figure 1 shows the internal configuration of a general television receiver having such a function.

In FIG. 1, reference numeral 1 denotes an antenna for receiving an airwave broadcasting signal, 2 denotes a tuner for updating a broadcast signal received by the antenna 1, and 2 denotes an intermediate frequency output from the tuner 2. IF amplification part for amplifying a signal (IF signal).

Also, reference numeral 4 denotes P / S separation, for example, consisting of a surface acoustic wave filter (SAW FILTER) for separating the IF signal output from the IF amplifier 3 into an image intermediate frequency signal PIF and an audio intermediate frequency signal SIF. 5 is a video signal detector for detecting a video signal from the video intermediate frequency signal separated and output from the P / S separation unit 4, and 6 is an audio intermediate output from the P / S separation unit 4; An audio signal detector for detecting an audio signal from a frequency signal.

On the other hand, reference numeral 7 is a remote control device for the viewer to adjust the output volume or to remotely control the whole other device, 8 is to receive the far-infrared signal transmitted from the remote control device 7 to convert it into an electrical signal The receiving unit 9 is a microprocessor as a control unit for controlling the overall apparatus in accordance with the contracted code signal output from the receiving unit 8, and 10 is a video (V) and audio (R) output from an external device, for example, a VCR. An A / V connection terminal 11 for receiving a Right, L; Left signal, and the A / V signal received by the antenna 1 and processed by the antenna 1 according to a predetermined switching control signal from the microprocessor 9; A / V switching unit for selectively switching the signal applied into the TV via the connection terminal 10, 12 is not shown for the audio signal output from the A / V switching unit 11, but the micro A voice processor for processing base, treble, and volume control in accordance with a predetermined control signal from the parser 9, 13 amplifies the voice signal processed by the voice processor 12 and is connected to the rear stage. A voice amplifier output to the speaker 14.

In addition, reference numeral 15 outputs R ', B', and G 'signals corresponding to the OSD pattern data according to a predetermined control signal from the microprocessor 9, thereby operating the entire apparatus such as channel switching or volume control. An OSD generator for notifying the user of the situation, 16 is not shown, but the brightness of the video signal output from the A / V switching unit 11 according to a predetermined control signal from the microprocessor 9, An image processor which processes Rint, Color, etc. and outputs R (Red), G (Green), B (Blue), and luminance (Y) signals corresponding to the image signal. A mixer which mixes and outputs the R, G, B, and Y signals output from (16) with the R ', G', B ', and OSD blanking signals (Y') output from the OSD generator (15). , 18 denotes a CRT (Cathod) connected to the rear stage based on the R, G, B and luminance (Y) signals output from the mixer 17. CRT drive unit that drives the e-ray tube).

That is, in the conventional TV receiver having the above-described configuration, when the viewer sets each operation mode through the remote controller 7 or the like, the microprocessor 9 controls the corresponding components to be adjusted by the user. In addition, the OSD generation device 15 is driven to control the display of the change set by the user on the screen through the CRT (19).

However, in the case where the function selection procedure is a menu method as in the present case, when the user wants to adjust various display environments of the television set, in particular, the screen output state such as chromaticity adjustment, the menu to which each function belongs is selected. If the screen adjustment operation is frequently performed, it is difficult to check how much the current screen output state is finally changed compared to the initial setting device.

The present invention has been made in view of the above-described circumstances, and by using the PIP function of a TV which is widely used in recent years, the contracted standard adjustment pattern is output through the sub-screen, and the adjustable screen adjustment pattern is output through the main screen. It is an object of the present invention to provide a television receiver equipped with a screen adjustment function using a sub-screen which enables a user to execute screen adjustment more easily.

A television receiver having a screen adjustment function using a sub-screen according to the present invention for realizing the above object comprises: an image processor for processing an image signal to enable sub-picture processing on a received broadcast signal; A television receiver having a CRT driving unit configured to provide a video screen for a main screen and a sub-screen by driving a rear CRT based on the hue signals R, G, and B and the luminance signal Y output from the apparatus; A function selection means for selecting and inputting a screen adjustment command by the user, an OSD pattern storage means for storing OSD pattern data for a predetermined screen adjustment pattern to be output to the main screen and a sub-screen when the screen adjustment function is selected, and to a predetermined control signal. The first OSD generating means for outputting a color tone signal corresponding to the main screen side OSD pattern stored in the OSD pattern storage means to the image processor, and corresponding to the sub-screen side OSD pattern stored in the OSD pattern storage means according to a predetermined control signal. A second OSD generating means for outputting a hue signal to the image processing unit; and when a screen adjustment command is inputted through the screen adjustment function selecting means, the entire device is driven to control the predetermined OSD pattern for screen adjustment through the main screen and the sub-screen. It characterized in that it comprises a control means for controlling each output.

That is, according to the present invention having the above-described configuration, the user can perform the screen adjustment more conveniently by allowing the user to refer to the screen adjustment standard pattern output through the sub-screen when performing the screen adjustment such as screen adjustment or chromaticity adjustment. Will be.

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

2 is a block diagram showing an internal configuration of a television receiver having a screen adjustment function using a sub-screen according to an embodiment of the present invention. In FIG. 2, reference numeral 22 denotes a first tuner for a main screen. 23 denotes a first IF amplifier for amplifying an intermediate frequency (IF) signal output from the first tuner 22, and 24 denotes an image intermediate frequency signal for an IF signal output from the first IF amplifier 23, respectively. A first P / S separation unit consisting of a surface acoustic wave filter (SAW FILTER) for separating the PIF and a voice intermediate frequency signal (SIF), and 25 is an image separated and output from the first P / S separation unit 24. First video signal detector for detecting a video signal from the intermediate frequency signal (PIF), 26 is a first signal for detecting the audio signal from the audio intermediate frequency signal separated output from the first P / S (24) Voice signal detector.

On the other hand, reference numeral 32 is a second tuner for a picture in picture (PIP), 33 is a second IF amplifier for amplifying the intermediate frequency signal output from the second tuner 32, 34 is 2 to separate the IF signal output from the IF amplifier section 33 into an image intermediate frequency signal PIF and an audio intermediate frequency signal SIF, respectively, such as the surface acoustic wave filter as in the first P / S separation unit 24. The second P / S separation section 35 made up is a second voice signal detection section that detects a voice signal from the voice intermediate frequency signal separated and output from the second P / S separation section 34.

In addition, reference numeral 70 is a remote control device further provided with a predetermined function key (not shown), 80 is a receiving unit for receiving the far infrared signal transmitted from the remote control device 70 and converts it into an electrical signal, 90 Is a microprocessor as a control unit for outputting a predetermined clock signal CL and data signal DATA for controlling the entire apparatus in accordance with the contracted code signal output from the receiver 80.

Reference numeral 20 is a switching unit for selectively switching the audio signals respectively output from the first and second video signal detectors 25 and 35 according to a predetermined control signal from the microprocessor 90, and reference numeral 28 Is a first voice processor for processing a voice signal for the main screen output from the switching unit 20 under the control of the microprocessor 90, and 29 is a voice signal processed by the first voice processor 28. Amplifying and outputting the audio signal to the speaker 30 connected to the rear stage, 27 is a headphone jack (not shown) installed in the TV body by processing the audio signal for the sub-screen output from the switching unit 20 The second voice processing unit to output through.

On the other hand, reference numeral 40 is an OSD pattern storage unit for storing the predetermined OSD pattern data for output to the main screen and the sub-screen, respectively when selecting the screen adjustment function, 41 is in accordance with a predetermined control signal from the microprocessor 90 The first OSD generator 42 outputs R ', G', and B 'signals for the screen adjustment standard pattern to be output to the sub-screen based on the data read from the OSD pattern storage unit 40, and 42 is a microprocessor 90. The second OSD generator for outputting the R ', G', B 'signal for the adjustable screen adjustment pattern to be output to the main screen according to the control signal from the 110, the image selected and output from the switching unit 20 R, G, B (red, green, blue) and luminance signal (Y) for generating the main picture and sub picture based on the signal and outputs the user's function keys (not shown) of the remote control device 70 Press () to select the on-screen adjustment function. The image processing unit 120 outputs a predetermined OSD pattern to be output to the main screen and the sub-screen based on the R ', G', and B 'signals output from the first and second OSD generators 41 and 42. A CRT driver for driving the CRT 130 based on the R, G, B and luminance signals Y output from the 110.

Next, the operation of the device having the above configuration will be described.

The device having the above-described configuration may include a function of a general TV receiver as well as the microprocessor 90 as the viewer selects a PIP function selection key (not shown) installed in the remote controller 70. By controlling the switching, the image processing unit 110 and the CRT driving unit 120 outputs the image on the CRT on the main screen and the sub-screen, wherein the audio output for the main screen is the first audio processing unit ( 28) and the audio amplifier 29 is output to the speaker 30 installed in the main body of the TV receiver, the audio output for the sub-screen through the second audio processing unit 27 through the headphone jack also installed in the main body By being output through the viewer, the viewer can watch the main screen and the sub-screen at the same time, and listen to the audio output of the sub-screen through the headphones as necessary.

On the other hand, when the user selects a predetermined function key (not shown) installed in the remote control device 70 to adjust the screen, the microprocessor 90 controls the first and second OSD generators 41 and 42. After driving control, the OSD pattern data for screen adjustment stored in the OSD pattern storage unit 40 is read. In this case, R ', for the screen adjustment standard pattern to be output as a sub-screen from the first OSD generator 41, is read. The G 'and B' signals are output, and the R ', G' and B 'signals for the adjustable screen adjustment pattern to be output to the main screen are output from the second OSD generator 42, respectively.

The OSD pattern signal for screen adjustment for the main screen and the sub-screen generated through the above process is processed by the image processor 110 to fit each screen output form under the control of the microprocessor 90 and the CRT driver 120 The output of the CRT screen is shown in FIG. 3. The drawing of FIG. 3 illustrates a screen output state output to the main screen and the sub screen through the above-described process.

On the other hand, the user can operate the corresponding key panel of the remote control device 70 while referring to the standard pattern of the screen adjustment to be output to the sub-screen to perform the screen adjustment, such as the brightness, chromaticity adjustment of the screen, the main screen The screen adjustment OSD pattern output by the control unit outputs an adjustment screen changed according to a user's remote control operation by a control operation of the microprocessor 90 controlling the image processor 11.

That is, according to the above embodiment, by using the PIP function of the television, which has been widely used in recent years, the contracted standard adjustment pattern is output through the sub-screen during the screen adjustment, and the adjustable screen adjustment pattern is output through the main screen. Therefore, it is possible to provide an additional screen adjustment service that allows the user to perform the screen adjustment more easily.

The present invention is not limited to the above embodiments and can be variously modified within the scope not departing from the technical gist of the present invention.

Claims (1)

An image processing unit which processes a video signal so as to perform sub picture processing on the received broadcast signal, and the rear stage based on the color tone signals R, G, and B and the luminance signal Y output from the image processing unit. A television receiver having a CRT driving unit configured to provide a video screen for a main screen and a sub-screen by driving a CRT; Means for selecting a screen adjustment function for the user to select and input a screen adjustment command, OSD pattern storage means for storing OSD pattern data for a predetermined screen adjustment pattern to be output to the main screen and sub-screen when the screen adjustment function is selected, and predetermined control A first OSD generating means for outputting a hue signal corresponding to the main screen side OSD pattern stored in the OSD pattern storage means to the image processing unit according to the signal, and to the sub-screen side OSD pattern stored in the OSD pattern storage means according to a predetermined control signal. A second OSD generating means for outputting a corresponding color tone signal to the image processing unit; and when a screen adjustment command is inputted through the screen adjustment function selecting means, the entire apparatus is controlled to be driven through the main screen and the sub-screen. Tele with the screen adjustment function using the sub-screen, characterized in that it comprises a control means for controlling the output of each OSD pattern Religion sets.