KR19990043348A - TV still image and memo execution device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image and a memo execution apparatus of a television, and to an apparatus for displaying a still image through a PIP signal processing after a still image is stored by a user and a memo for the image is recorded. The present invention utilizes a still function and a memo function of an image to stop the image signal through a process of digital conversion and to process the PIP signal together with the image signal and the character data signal when simple text contents are input. While only the contents input to the title are stored in the memory, the OSD screen showing only the title is displayed first when the still image output button is operated by the user, and corresponds to the title selected by the user. By outputting the still image and the memo content, it is possible to repeatedly view and at the same time it is easy to grasp the content of the still image.

Description

TV still image and memo execution device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image and a memo execution apparatus of a television, wherein a still image by a user is stored and a memo of the image is recorded and then displayed together through PIP signal processing. and memo in television).

In a conventional television, a user pauses a screen by operating a pause button of a screen provided in a remote controller in order to watch a screen for a longer time or to view a detail.

However, in the prior art as described above, the paused screen is only a temporary function that is not seen again later by stopping the stop state by manipulating the pause button once more.

Therefore, the present invention has been invented to solve the above problems, and an object of the present invention is to stop the image by using the stop function of the image and the memo function for the frozen image, and when the memo is executed, PIP signal processing together with the stored video signal and text signal, and then, when the output function is selected by the user, the still image and the memo contents are displayed together, so that the user can repeatedly watch the still image and memo. To provide a device.

Figure 1a is a block diagram showing a still image and a memo execution device of a television according to the present invention.

Figure 1b is an illustration of a memo screen according to the present invention.

FIG. 2A is a block diagram illustrating a signal converter, which is a main part of FIG. 1A; FIG.

2B is an exemplary view of an OSD screen displaying a list of memos stored in YPIROM according to the present invention.

2C is an exemplary view in which a still image and a memo screen are displayed according to the present invention.

Figure 3 is a flow chart for explaining the still image and memo execution device of the television of the present invention.

* Explanation of symbols for main parts of the drawings

100: antenna 151: high frequency amplifier

152: mixing unit 153: local oscillation unit

200: IF amplifier 250: image detector

300: video amplifier 350: Y / C separation unit

400: color signal output unit 450: water pipe

500: color demodulator 550: Y pyrom

600: microcomputer 650: character memory unit

701: signal receiver 702: A / D converter

703: PIP signal processing unit 704: D / A conversion unit

750: OSD generator 801: Image storage button

802: memo function button 803: character input button

804: Save image output button

Hereinafter, with reference to the accompanying drawings will be described a specific embodiment for achieving the above object of the present invention.

Figure 1a is a block diagram showing a still image and a memo execution device of a television according to the present invention.

Referring to FIG. 1A, the present invention provides a high frequency amplification unit 151 for amplifying a high frequency signal, which is a complex video signal received from an antenna 100, and an input signal and a local oscillation unit amplified from the high frequency amplification unit 151. A tuner unit 150 including a mixing unit 152 for receiving a local oscillation frequency from the 153 and converting it into an intermediate frequency, and a local oscillating unit 153 for supplying a signal for frequency conversion to the mixing unit 152; IF detection unit 200 for intermediate frequency amplification of the composite image signal applied from the tuner unit 150 and image detection for extracting an image signal from the intermediate image amplification applied with the intermediate frequency from the IF amplification unit 200. A color signal (C signal) mixed in the unit 250, an image amplifier 300 for amplifying the video signal output from the image detector 250, and a video signal output from the video amplifier 300; And luminance signal (Y signal) A Y / C separator 350, a color demodulator 600 that receives a color signal (C signal) from the Y / C separator 350 and outputs a color difference signal, the Y / C separator 350 and The color signal output unit 400 receives the luminance signal (Y signal) and the color difference signal from the color demodulator 600 and outputs the RGB signal of the primary color, and receives the RGB signal from the color signal output unit 400 to display the color on the screen. A microcomputer that applies a control signal to the character memory unit 650, the signal converter 700, and the OSD generator 750 according to the signal generated from the water pipe 450 for reproducing the image and the remote controller 800 ( 600 and a signal converter 700 for receiving and converting image signals and text data signals from the image amplifier 300 and the character memory unit 650 according to the control signal of the microcomputer 600, and A character memory unit 650 for receiving a control signal of the microcomputer 600 and storing a text data signal, and the microcomputer 600 of the microcomputer 600; An OSD generator 750 for outputting an OSD RGB signal by an audio signal, an EPI 550 for storing a title of a memo according to the control signal of the microcomputer 600, an image stop signal by a user's button manipulation, Remote controller is provided with an image stop button 801, a memo function button 802, a character input button 803 and a still image output button 804 for generating a memo function signal, a text data signal and a still image output signal, respectively. 800).

Hereinafter, the operation according to an embodiment of the present invention made as described above will be described in detail.

First, the high frequency signal received from the antenna 100 of the television is matched with the input impedance of the high frequency amplifier 151 and the characteristic impedance of the feed line through an input circuit (not shown) of the tuner 150. The high frequency amplifying unit 151 outputs the high frequency amplifying unit 151 to increase the gain of the received high frequency signal, improve selectivity, and prevent image disturbance. In addition, the S / N ratio is improved, and the local oscillation frequency output from the local oscillator 153 is prevented from being radiated to the antenna 100 to affect other receivers. In addition, the signal amplified by the high frequency amplifier 151 and the frequency output from the local oscillator 153 are input to the mixer 152, the mixer 152 mixes the high frequency signal and the local oscillation frequency To generate an intermediate frequency corresponding to the difference between the two frequencies.

In addition, the intermediate frequency signal output from the tuner unit 150 is amplified through the amplification process of the IF amplifier 200, and then output to the image detector 250, and the image detector 250 is the intermediate frequency. After detecting only an image signal among the signals, it is output to the image amplifier 300 to be amplified.

Therefore, the image signal output from the image amplification unit 300 is displayed on the screen of the water pipe 450 through the color demodulation and color signal output process.

Here, when the user operates the image stop button 801 provided on the remote controller 800 to stop the image displayed on the screen of the water pipe 450, the image stop signal generated from the remote controller 800 Is received by a signal receiver (not shown) mounted in the system of the television, and then detected by the microcomputer 600.

The microcomputer 600 which detects the image stop signal generated from the remote controller 800 as described above applies a signal conversion control signal to the signal converter 700 connected to the image amplifier 300 to convert the image signal. After receiving, the digital conversion is stopped.

On the other hand, when the memo function button 802 provided in the remote controller 800 is operated by the user after the image is stopped as described above, the micom 600 similarly generates a memo function signal generated from the remote controller 800. To detect the display screen of the water pipe 450 to display a memo screen as shown in the example of Figure 1b to be described later.

That is, the user inputs simple contents to each item displayed on the memo screen as described above by operating a button provided on the character input button 803 in the remote controller 800, and the character input button 803 operates. Each character data signal generated by the detection is detected by the microcomputer 600 and stored in the character memory unit 650, and the content corresponding to the title is stored in the YPI 550.

After the image is stopped through the above process, the memo content of the still image is stored in the character memory unit 650, and then the character data stored in the character memory unit 650 according to the control signal of the microcomputer 600 is stored. The signal is PIP signal-processed together with the image signal stopped by the PIP signal processing unit 703 in the signal conversion unit 700 and stored in the memory unit 704.

In addition, when the user manipulates the still image output button 804 provided in the remote controller 800 to view the image and memo contents stored in the memory unit 704, the microcomputer 600 for detecting this is the YPIROM. After reading the title content stored in 550, the data signal for the title is applied to the OSD generator 750, and the OSD generator 750 receives the OSD RGB signal based on the data signal for the title. Is generated and output to the color signal output unit 400.

The color signal output unit 400 amplifies the OSD RGB signal of the OSD generator 750 according to the output of the water pipe 450, and then displays a screen as shown in FIG. 2B to be described later. When the corresponding number is selected by the user, the microcomputer 600 detects this and applies a control signal to the memory unit 704 in the signal converter 700 to store the number. The PIP video signal is analog-converted to be output to the video amplifier 300. The PIP image signal output from the image amplifier 300 is amplified by the image amplifier 300 and then output to the Y / C separator 350, and the Y / C separator 350 is an image signal. The color signal (C signal) and the luminance signal (Y signal) mixed therein are separated and output to the color demodulation unit 600 and the color signal output unit 400, respectively.

That is, the color demodulator 600 receives the color signal (C signal) from the Y / C separation unit 350, synthesizes the burst signal, detects the color difference signal (RY, GY, BY), and detects and amplifies the color difference signal (RY, GY, BY). While outputting to the color signal output unit 400, the color signal output unit 400 is the luminance signal (Y signal) and the color difference signal (RY, GY, BY) from the Y / C separation unit 350 and the color demodulation unit 600, respectively ) Is synthesized, and the RGB signal, which is a primary color signal, is generated, amplified by the size necessary for the output of the water pipe 450, and output to the water pipe 450.

Therefore, the water pipe 450 receives the RGB signal from the color signal output unit 400 and outputs the deflection and simultaneously superimposes the three primary colors of red, green, and blue on the fluorescent surface, as shown in FIG. A screen containing still images and memo contents is displayed.

FIG. 1B is an exemplary view of a memo screen according to the present invention, in which the user manipulates the memo function button 802 provided in the remote controller 800 to display a screen of a predetermined format displayed on the screen of the water pipe 450. In the drawing, the user manipulates the text input button 803 to input simple contents of the still image in the title, date and time, and the input contents are stored in the text memory unit 650.

FIG. 2A is a block diagram illustrating a signal converter, which is a main part of FIG. 1A, wherein the signal converter 700 includes a signal receiver 701 for receiving an image signal from the image amplifier 300, and a signal receiver 701 from the signal receiver 701. PIP for PIP signal processing of the video signal and the text data signal output from the A / D converter 702 and the A / D converter 702 and the character memory unit 650 to digitally convert the output video signal. The image processing unit 703, the memory unit 704 for storing the PIP image signal output through the PIP signal processing unit 703, and the image amplification by analog-converting the PIP image signal output from the memory unit 704 The D / A converter 705 is applied to the unit 300.

Hereinafter, the operation of the signal conversion unit 700 with reference to the accompanying drawings in detail as follows.

First, an image stop button 801 is operated by a user, and an image signal output from the image amplifier 300 is received by the signal receiver 701 in the signal converter 700, and the signal receiver 701 is provided. The video signal received by the A / D converter 702 is converted into a digital signal through a sampling, quantization, and encoding process, and then applied to the PIP signal processor 703.

On the other hand, a text data signal is applied to the PIP signal processing unit 703 by the control signal of the microcomputer 600 from the text memory unit 650 for storing the memo content input by the user, and the PIP signal processing together with the video signal. And stored in the memory unit 704.

Here, when the still image output button 804 is operated by the user, the microcomputer 600 detecting the same applies the read enable signal RE to the memory unit 704, and the memory unit 704. The PIP image signal is stored in the D / A converter 705, and the D / A converter 705 converts the analog signal into an analog signal and applies the image signal to the image amplifier 300. Through the output process to be displayed on the screen of the water pipe (450).

FIG. 2B is an exemplary view of a memo list screen stored in an IPIROM according to the present invention, and only contents related to a title inputted in the MEMO screen shown in FIG. 1B according to a control signal of the microcomputer 600 may be YPIROM 550. After being stored separately), when the still image output button 804 is operated by the user, the user can easily know the contents of the still image only through the title.

2C is an exemplary view in which a still image and a memo screen are displayed according to the present invention. In the memo list screen shown in FIG. 2B, an image and a memo of a number selected by the user are displayed together on the screen of the award pipe 450. do.

3 is a flowchart illustrating a still image and a memo execution device of a television according to the present invention, wherein the power supply of the television is switched on (S1) and the power supply of the television is switched from the power on (S1). After switching on, while the broadcast program is output through the channel selection of the user through a channel program output step (S2) and the broadcast program is output through the broadcast program output step (S2), the image is stopped by the user. An image stop determination step (S3) for determining whether a function is applied; an A / D conversion step (S4) for performing digital conversion when it is determined that the image stop function is applied in the image stop determination step (S3); If it is determined that the memo function is applied in the memo function determination step (S5) and the memo function determination step (S5) after the A / D conversion step (S4), character input is performed. The executed text input step (S6) and the text input step (S6) is stored, while the title storage step (S7) and the title storage step (S7) separately stored in the character associated with the title, A PIP signal processing step S8 in which the digitally converted video signal and the stored text data signal are PIP signal processed together, and a storage step S9 in which the video signal processed in the PIP signal processing step S8 is stored; An output signal application discrimination step S10 for determining whether an output signal of a still image is applied by the user after the storing step S9 and an output signal for the still image is applied in the output signal application discrimination step S10 If it is determined that one of the OSD output step (S11) and the OSD screen output in the OSD output step (S11) is displayed, the selected PIP video signal is selected as an analog signal. D / converted The video stop function is not applied in the A conversion step S12, the output step S13 of outputting the analog signal converted through the D / A conversion step S12, and the image stop determination step S3. If it is determined that the existing program is output, the program output step (S2), and if it is determined that the memo function is not applied in the memo function determination step (S5), A / D digital conversion of the video signal is performed When it is determined that the output signal of the still image is not applied in the conversion step S4 and the output signal application discrimination step S10, a storage step S9 is performed in which the PIP image signal is stored.

Hereinafter, with reference to the accompanying drawings will be described the operation after the image stop determination step (S3).

First, when the user operates the image stop button 801 provided in the remote controller 800, the microcomputer 600 for detecting the control signal to the signal conversion unit 700 connected to the image amplifier 300 The signal receiver 701 in the signal converter 700 receives the video signal, and then is applied to the PIP signal processor 703 through a digital conversion process of the A / D converter 702. do.

After the image is stopped as described above, when the user operates the memo function button 802 to memo simple contents of the still image, the microcomputer 600 detects the same and detects the water pipe 450. The memo screen is displayed on the screen, and upon viewing the memo screen, the user operates the text input button 803 to input a title, date and time, and contents. The text data signal input in this way is stored in the character memory unit 650 under the control of the microcomputer 600, while the contents input in the title are separately stored in the ypyrom 550.

In addition, when the input of the character is finished as described above, the microcomputer 600 outputs the character data signal stored in the character memory unit 650 to the PIP signal processor 703, and then A in the signal conversion unit 700. The digital signal is processed by the / D converter 702 together with the video signal subjected to digital conversion, and then stored in the memory unit 704.

Here, the user manipulates the still image output button 804 to view the still image and the memo contents stored in the memory unit 704, and the microcomputer 600 detects this and is stored in the EPI 550. After reading the title data signal first, it is applied to the OSD generator 750. The OSD generator 750 receives the title data signal of the microcomputer 600 to generate the OSD RGB signal to generate the receiving tube 450. The OSD screen will be displayed with only the title displayed on the screen.

At this time, when a certain title number is selected by the user, the microcomputer 600 detects this and then applies a control signal to the memory unit 704 to store the PIP image signal stored in the D / A converter 705. By outputting to the image amplifier 300 through an analog conversion process, the memo content is displayed together with the still image.

As described above, the present invention utilizes the freeze function and the memo function of the video to stop the video signal through the digital conversion process and to input the video signal and the text data signal when simple text contents are input. While processing the PIP signal and storing it in the memory unit, only the contents input to the title are stored in YPIROM separately, and when the still image output button is operated by the user, the OSD screen showing only the title is displayed first. Has the effect of outputting still images and memo contents corresponding to the selected title.

Claims (3)

In a television capable of making a picture of the main screen a still picture and writing a memo of the still picture on a sub picture, the television can be stored together. Image stopping means for stopping the image displayed on the main screen of the television; Memo writing means for recording the contents of the image stopped by the image stopping means on the sub-screen of the television; Signal conversion means for PIP-signaling the video signal converted by the video pausing means and the text data signal stored by the memo writing means; Storage means for storing still images and memos processed by the signal conversion means, and And still image and memo execution device of a television, including control means for controlling said image stop means, memo write means, signal conversion means and storage means. The method of claim 1, wherein the signal converting means receives the image signal received through the signal receiving unit 701 and digitally converted by the A / D conversion unit 702 and the character data signal output from the character memory unit 650. PIP signal processing unit 703 for PIP signal processing, a memory unit 704 for storing the PIP video signal output through the PIP signal processing unit 703, and a PIP video signal output from the memory unit 704 And a D / A converting unit (705) applied to the image amplifying unit (300) after conversion into an analog signal. 2. The still image of a television according to claim 1, further comprising a remote controller (800) which is provided with image stopping means, memo function means, text input means, and still image output means to remotely control the television. And memo execution device.