KR20040033419A - A/V switching method for high quality MPEG kiosk - Google Patents

Abstract

PURPOSE: A method for switching an image of a high quality moving image kiosk is provided to facilitate remote control by using the PC communication, realize the precise program timing control, and softly realize software due to fade-in/out. CONSTITUTION: A TV card of a PC inputs a monitor signal, a screen output signal, a DVD(Digital Versatile Disc) monitor output signal, a VCR(Video Cassette Recorder) monitor signal, and other monitor output signal. The desired output signal is selected from the inputted monitor output signals by receiving the output signal through an I2C(Inter-Integrated Circuit) bus. The software or a desired function is controlled on the desired timing. A DC output circuit receives data from the PC through the 12C bus and outputs DC output. The output DC controls AC gain of a video signal inputted from a DC output volume circuit. A fade-in effect is realized by gradually reducing the AC gain. The monitor output signal selected from various monitor output signals is output.

Description

A / V switching method for high quality MPEG kiosk

The present invention relates to AUDIO / VIDEO signal control, and more particularly, to a method of selecting one monitor output by S / W control of the monitor output from all video and audio devices to a PC.

Kiosks are originated in Turkish and Persian, which means, for example, large tents or porches installed outdoors. Kiosks in the field of information technology refer to public institutions or indoors in specific public places. In addition, it means a comprehensive information guide system that provides various advertisement information, life guide information, etc., which the user wants to obtain through stills, texts, graphics, videos, animations, etc., which are installed on the monitor.

A predetermined operating program is typically built into the kiosk terminal, and after storing image information to be provided to a storage medium such as a compact disk (CD), the image information is displayed on a monitor by a user's button manipulation. It is supposed to be. Therefore, the video information to be provided has a disadvantage that the amount of information is limited by the storage capacity of the storage medium, and that various life information provided on the roadside in addition to advertisement information or guidance information cannot be delivered to the user in real time. there was.

1 is an electrical functional block diagram of a conventional kiosk device. As shown in FIG. 1, a conventional kiosk device 10 includes a main body 14 housed inside a protective box 11 and a touch panel 12 monitor disposed on an upper end of the main body 14. It is structured. Of course, in addition to the keyboard for inputting numbers or other functions may be additionally provided.

According to the conventional kiosk device, since there is no watchdog timer function for detecting whether the kiosk device is operating normally every predetermined period and forcibly resetting the kiosk device in case of abnormal operation, a large amount of time is required to recover from an abnormal occurrence of the device. There is a problem.

In addition, since there is no device for real-time integrated management / control of facilities around the kiosk, there is a problem that the real-time response is delayed by the administrator having to visit and manipulate it at a predetermined time. There is a problem that results.

In the Kiosk terminal disclosed in Korean Patent Publication No. 1998-27322, a video advertisement monitor displaying advertisement information about an advertisement product and its affiliated store by video, search for advertisement information displayed on the video advertisement monitor, and search for a specific product and its affiliated store. Video touch screen equipped with a selection button for outputting a discount coupon, a text advertisement monitor displaying advertisement information for the mail order goods and its affiliated stores stored on the optical disc, the advertisement information displayed on the text advertisement monitor and searching for specific correspondence sales A text advertisement touch screen having a selection button for outputting a product and a discount coupon of the affiliated store, providing an advertisement image to the text advertisement monitor, and searching for advertisement information as the text advertisement touch screen is operated. Coupon print signal for the merchant to print a discount coupon An optical disk driver for outputting an advertisement image to the video advertisement monitor and searching for advertisement information as the video touch screen is operated, and outputting a discount coupon print signal for outputting a discount coupon of a specific advertisement product and its affiliated store; The kiosk terminal body and the optical disk driver which provide the living information guided to the text advertising touch screen and the search image and output the living information print signal for outputting the living information as the touch screen switch of the text advertising touch screen is turned on. And a printer for outputting a discount coupon and a living information sheet when the discount coupon print signal and the living information print signal outputted from the main body of the kiosk terminal are input, the above-mentioned conventional problem is solved.

However, since the kiosk terminal provides various information in a multitasking manner, data collision occurs between peripheral units providing different information, so that the desired service is not provided smoothly or an error occurs in the kiosk terminal itself. This causes problems such as service interruption.

In Korean Patent Publication No. 2000-71925, a comprehensive information providing method using a kiosk terminal equipped with an information expansion arbitration apparatus, a comprehensive information using a kiosk terminal equipped with an information expansion arbitration apparatus for providing two or more information more smoothly. It provides a method of providing, and provides comprehensive information using a kiosk terminal equipped with an information expansion arbitration device that can prevent data conflicts between peripheral devices.

In the conventional method of controlling a TV function using a PC, a control signal for controlling the function of the TV is supplied to the microcomputer of the TV through a communication port and a communication line, and the overall function of the TV by the control operation of the microcomputer receiving the control signal. This is to be controlled.

Conventionally, after inputting the monitor output of another device such as a PC, VCR, DVD, etc. to an external input of a video display device or a TV receiver, the input is selected using the S / W function of the receiver. Such a selection method is limited to the number of external inputs of the receiver by the receiver control method, and thus, the remote selection control is impossible because the input selection must be made through the receiver, and there is a problem that software control is not possible in the S / W timing.

Therefore, the present invention has been devised to solve the above-mentioned disadvantages and problems of the conventional kiosk system, and can be controlled remotely using PC communication through PC control, and the software engineer can control the software in a sophisticated software timing control. It is an object of the present invention to provide a video switching system to enable high software compatibility and smooth S / W due to Fade IN / OUT.

1 is an electrical functional block diagram of a conventional kiosk device.

2 is a block diagram showing a system configuration.

3 is a diagram of A / V OUT waveforms and software timing.

4 is a software flowchart for controlling software at a desired timing.

<Explanation of symbols for the main parts of the drawings>

10: conventional kiosk device 20: output signal input unit

30: output signal selector 40: controller

50: FADE IN effect section 60: output signal output section

The above object of the present invention is achieved by an image switching system for a high quality video kiosk consisting of an output signal input step, an output signal selection step, a control step, a FADE IN effect step and an output step.

Details of the above object and technical configuration and the effects thereof according to the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

First, FIG. 2 is a block diagram showing a system configuration.

The video switching system has a set of two A / V inputs and one A / V output, and an S / S that can control the video fade out time to control the A / V input signal and smoothly replace the two video signals. It consists of / W.

The output signal input step is an input step 20 of the signal output from the TV card of the PC, the screen output signal of the PC, the DVD monitor output signal, the VCR monitor output signal, and other monitor output signals.

The output signal selection step is a step (30) of selecting a desired output signal among the monitor output signals input by receiving data through the 12C BUS.

The control step is a step 40 of controlling software at a desired timing or controlling a desired function (fade out).

The FADE IN effect step receives data from the PC through the 12C bus and makes the DC output in the DC output circuit. The output DC is connected to the DC volume output circuit to adjust the AC gain of the video signal input to the DC output volume circuit. AC gain is gradually reduced over time to have a FADE IN effect (50).

The output step is a step (60) in which the monitor output signal selected from the various monitor output signals input in the output signal input step is output.

3 is a diagram of A / V OUT waveforms and software timing.

As the voltages of DC1 and DC2 gradually decrease over time, the Y / C signal passing through the DC volume also decreases in gain, and therefore has a fade in effect on the screen when SW is switched from AV1 to AV2.

The software controls the fade in / out to reduce the size of the video signal, minimizing the image blur that occurs when two different video signals are changed from A to B.

4 is a software flowchart for controlling software at a desired timing.

When timer is set and PWM time and PWM data decrease, PWM data is output and PWM setting time is judged OFF. If OFF, data is outputted. If not, return to above PWM time and PWM data reduction step and repeat until OFF. .

Therefore, the video switching system for the high quality video kiosk according to the present invention is not a one-way communication product that provides information unilaterally by adding a function to control video and voice in the kiosk, but provides an information that meets the needs of users. By providing communication capabilities, they can be used for more effective marketing promotions and various business models. In addition, it can produce excellent effects in the business areas of digital POP, VOD business, and digital home appliance image control.

Claims (1)

In the image switching method, An output signal input step of inputting a monitor output signal from a TV card of the PC, a screen output signal of the PC, a DVD monitor output signal, a VCR monitor output signal, and other monitor output signals; An output signal selecting step of receiving data from the inputted output signal through a 12C bus and selecting a desired output signal from among inputted monitor output signals; A control step of controlling software or controlling a desired function at a desired timing; Receives data from the PC via the 12C bus to be DC output from the DC output circuit, and the output DC is connected to the DC volume output circuit to adjust the AC gain of the video signal input to the DC output volume circuit and adjust the AC gain. A fade in effect step having a fade in effect by gradually decreasing over time; And And a monitor output signal selected from among the various monitor output signals input in the output signal input step.