KR0180320B1 - Automatic image output control of television - Google Patents

Abstract

The present invention provides an optimal screen output state by observing a screen state in which a user changes at a predetermined time interval by varying an image output adjustment level such as brightness, contrast, tint, etc. at predetermined time intervals. A television receiver having a video output auto-variable function capable of selecting an apparatus, comprising: a microprocessor in which the entire apparatus controls an operation, and a television having an image processor adjusting an image output based on a predetermined control signal from the microprocessor. In the receiver, a PWM generator for generating a predetermined pulse width modulation (PWM) signal for screen output adjustment according to a control signal applied from the microprocessor, and a PWM signal output from the PWM generator to integrate a predetermined Integrating circuit unit for applying a level signal to the image processing unit; A mode selection unit for selecting an automatic variable mode, a timer for counting a predetermined time, and an image adjustment data storage sequentially storing variable data for varying an image output. The microprocessor includes a mode selection unit. When the image output automatic variable mode is selected through the PWM generation unit based on the adjustment data stored in the image adjustment data storage unit to control to change the image output state by a predetermined time interval by the count value of the timer. It features.

Description

Television receiver with automatic video output

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

2 is a block diagram showing the internal configuration of a television receiver having a video output automatic variable function according to an embodiment of the present invention.

3 is a block diagram showing another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1 antenna 2 tuner (TUNER)

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

5: voice detector 6: image detector

7: voice processor 8: voice amplifier

9: speaker 10: image processing unit

11: CRT driving unit 12: CRT (Cathode-Ray Tube)

13, 130: remote control unit 14, 140: receiving unit

15, 150: microprocessor 16: PWM generator

17: integral circuit 20: timer

21: Image adjustment data storage unit 22: OSD generation unit

23: mixer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver, and in particular, by adjusting the image output adjustment level such as brightness, contrast, tint, etc. by themselves at a predetermined time interval, the user changes the screen state at a predetermined time interval. The present invention relates to a television receiver having a video output automatic variable function capable of selecting an optimal screen output state while observing.

The microprocessor provided in the television receiver (hereinafter referred to as a TV receiver) is configured to execute a control operation for the entire apparatus based on a user's control command through a remote controller operation or a control program set in itself. A diagram for describing a control operation of a microprocessor in a conventional TV receiver.

In FIG. 1, reference numeral 1 denotes an antenna for receiving an over-the-air broadcast signal, 2 denotes a tuner for tuning a broadcast signal of a channel selected by a user among broadcast signals received through the antenna 1, and 3 denotes an antenna. An IF amplifier for amplifying the IF signal output from the tuner 2, and 4 is for separating the video intermediate frequency signal PIF and the audio intermediate frequency signal SIF from the IF signal output from the IF amplifier 3; For example, a P / S separation unit composed of a surface acoustic wave filter or the like, 5 is an audio detection unit for detecting an audio signal from the SIF signal output from the P / S separation unit 4, and 6 is an audio signal detection unit for detecting a video signal from the PIF signal. Image detector.

Also, reference numeral 7 denotes a bass, treble, and balance for the voice signal detected by the voice detector 15 according to a predetermined control signal from the microprocessor 15 which will be described later. 8 is a voice amplifier which amplifies the voice signal processed by the voice processor 7 and outputs it to the speaker 9 connected to the rear stage.

Reference numeral 10 denotes image processing such as color, tint, brightness, etc. on the image signal output from the image detector 6 according to a predetermined control signal from the microprocessor 15. An image processor for outputting R (Red), G (Green), and B (Blue) signals corresponding to an image signal, and 11 denotes a CRT 12 based on an RGB signal output from the image processor 10. It is a driving CRT drive unit.

On the other hand, reference numeral 13 is a remote control device for the viewer to remotely control the operation of the overall device, 14 is a receiving unit for converting the far-infrared signal transmitted from the remote control device 13 into an electric code signal, 15 is the remote control device ( A microprocessor that executes control operations for the entire apparatus according to the remote control signal from 13).

In addition, reference numeral 16 denotes a PWM generator for generating a predetermined pulse width modulation (PWM) signal in accordance with a control signal from the microprocessor 15. Brightness and contrast (Brightness) and contrast ( PWM generation circuit (not shown) necessary for image processing control such as Contast, Tint, etc., is provided, and 17 denotes a predetermined level signal by integrating respective PWM signals output from the PWM generation unit 16, respectively. Integrating circuit (not shown) for integrating the PWM signal output from each component of the PWM generating section 16 is provided therein as an integral circuit section.

That is, in the device having the above-described configuration, the microprocessor 15 outputs a predetermined control signal corresponding to the remote control operation of the user through the corresponding port for adjusting the video output of the user, and generates a corresponding PWM according to the control signal. The PWM signal is generated in the circuit and the image processor is controlled as an integrated signal. In order to set the screen output state according to the user's taste, the user can use the brightness, contrast, contrast, There was a inconvenience in that the image output state such as tint must be adjusted manually.

The present invention has been made in view of the above circumstances, and when the user selects the image output automatic variable mode through a remote control device or the like, the image output adjustment level such as brightness, contrast, tint, etc. By automatically changing the data at predetermined time intervals, the user can observe the screen state changing at regular time intervals and provide a television receiver with an automatic video output function that allows the user to select the optimal screen output state according to his or her taste. There is a purpose.

A television receiver having an image output automatic variable function according to the present invention for realizing the above object comprises a television having a control unit for controlling the operation of the overall apparatus and an image processing unit for adjusting the image output based on a predetermined control signal from the control unit. In the receiver, the PWM generator generates a predetermined pulse width modulation (PWM) signal for screen output adjustment according to the control signal applied from the controller, and integrates the PWM signal output from the PWM generator to a predetermined level. Image adjustment data sequentially stored therein an integrating circuit unit for applying a signal to the image processing unit, a mode selection unit for a user to select an automatic variable output mode of the image, a timer for counting a predetermined time, and variable data for varying the image output It is configured to include a storage unit, the control unit automatically outputs the image output through the mode selection unit When the change mode is selected, the PWM output unit is driven based on the adjustment data stored in the image adjustment data storage unit to control the image output state to be changed at predetermined time intervals by the count value of the timer.

That is, according to the present invention having the above-described configuration, when the user selects the image output automatic variable mode by pressing a predetermined function key installed on the remote control device, the image such as brightness, contrast, tint, etc. By adjusting the output adjustment level automatically at a predetermined time interval, the user can select an optimal screen output state that suits his or her taste while observing the screen state that changes at a predetermined time interval.

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

2 is a block diagram showing the internal structure of a television receiver having an automatic image output variable function according to an embodiment of the present invention, the same reference numerals are assigned to the same components as those in FIG. 1, and a detailed description thereof will be omitted. do.

In FIG. 2, reference numeral 20 denotes a timer for counting a predetermined time interval for a predetermined time so that the user can check the variable screen state after changing the screen output state, and 21 is variable data for varying the image output. The video adjustment data storage unit 130 is sequentially stored remote control device is provided with a predetermined function key (not shown) so that the user can select the video output automatic variable mode according to the present invention as needed, 140 is the remote control device ( Receiving unit for receiving the far-infrared signal transmitted from 130 and converting it into an electrical code signal, 150 is a microprocessor as a control unit for controlling the overall operation of the device based on the load signal output from the receiving unit 140, The microprocessor 150 has a mode change signal as an image output automatic variable mode through the receiver 140. When applied, the image output adjustment signal for Brightness, Contrast, Tint, etc. to the PWM generator 16 based on the adjustment data stored in the image adjustment data storage 21. Will print

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

When the user selects the image output automatic variable mode by pressing a predetermined function key (not shown) installed in the remote control device 130 while watching TV, the microprocessor 150 stores the image adjustment data storage 21. The predetermined control data is output at a predetermined time interval based on the adjustment data stored in the bar. The PWM generation unit 16 according to the control data applied from the microprocessor 150 has a brightness and contrast. Each PWM signal whose control level such as (Contrast), tint (Tint), etc. changes together at a predetermined time interval is outputted.

Each PWM signal output through the above process is integrated in the integrating circuit unit 17 and applied to the image processing unit 10. The image processing unit 10 is applied at a predetermined time interval from the integrating circuit unit 17. By performing image processing according to the adjustment level signals for Brightness, Contrast, and Tint, an image output screen that is changed at a predetermined time interval is provided.

On the other hand, at this time, the user can observe the changing screen state and press the function key (not shown) once more when the screen state suitable for his taste is output, and set the screen output state, and then separately the screen state. The screen will remain as it is unless you adjust it.

That is, according to the exemplary embodiment, when the user selects the image output automatic variable mode by pressing a predetermined function key (not shown) installed in the remote control apparatus 130, the microprocessor 150 stores the image adjustment data storage unit 11. Based on the adjustment data stored in), the video output adjustment level such as Brightness, Contrast, Tint, etc. is automatically changed at predetermined time intervals so that the user can change it at regular intervals. By observing the screen state, you can select the optimal screen output state according to your taste.

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, for example, by further configuring the OSD generator 22 as shown in FIG. When the user selects a screen state that suits his or her taste, the screen adjustment state may be configured to be displayed on the screen through OSD subtitles so that the user can check.

As described above, according to the present invention, when the user selects the image output automatic variable mode by pressing a predetermined function key (not shown) installed on the remote control device, the microprocessor is stored in the image adjustment data storage unit. Based on the adjustment data, the video output adjustment level such as Brightness, Contrast, Tint, etc. is controlled to be automatically changed at a predetermined time interval, so that the user observes the screen state changing at a predetermined time interval. At the same time, it is possible to realize a television receiver equipped with an automatic variable video output function that enables the user to select an optimal screen output state according to his or her taste.

Claims (3)

A television receiver having a control unit for controlling the operation of the entire apparatus and an image processing unit for adjusting the image output based on a predetermined control signal applied from the control unit, wherein the television receiver has a predetermined unit for adjusting the screen output according to the control signal applied from the control unit. PWM generation section for generating a pulse width modulation (PWM) signal of the integrated circuit, an integration circuit section for applying a predetermined level signal to the image processing section by integrating the PWM signal output from the PWM generation section, the user is in the image output automatic variable mode A mode selection unit for setting, a timer for setting a predetermined time interval between variable screen states, and an image adjustment data storage unit sequentially storing image quality variable data for changing the screen state, wherein the control unit selects a mode. When the video output automatic variable mode is selected through the unit, based on the count value set in the timer The image adjustment reads the image adjustment data stored in the data storage unit PWM generated by the driving portion, with automatic image output variable functionality, characterized in that for controlling so that the displayed image is changed at a predetermined time interval the television receiver. The television receiver according to claim 1, wherein the controller controls the screen output to be set to the selected output state when the user selects the screen output state through the mode selection unit. The apparatus of claim 1, further comprising: an OSD generator for generating predetermined OSD pattern data at a screen adjustment state selected by a user, and a mixer for mixing the OSD pattern data generated by the OSD generator with a received broadcast signal. And the control unit controls to display the screen adjustment state on the screen through the OSD subtitles when the user selects a screen state suitable for his or her taste.