KR200182043Y1 - An image signal control system for multi-point control signal processing - Google Patents

Abstract

The present invention relates to a video signal control system for multi-point control signal processing.

The image signal control system for multi-point control signal processing according to the present invention converts an input composite video signal into an image standard mode signal and processes an external interface signal using an external controller to the converted image standard mode signal, wherein the interface An analog-digital converter for quantizing a multi-point control signal in a controller, a memory unit for storing the control signal of the analog-digital converter in a memory and transmitting it to the interface controller, and converting an image standard mode into a video frame by a control signal of the interface controller And a memory controller configured to store the image data output through the image data format unit and the image frame output through the image data format unit in a memory.

The video signal control system for multi-point control signal processing having such a configuration receives a multi-point external signal and directly controls the video standard mode, thereby reducing the burden on hardware, preventing distortion of the control signal, and shortening the execution time of the control signal. There is an effect of obtaining a predetermined image frame in real time.

Description

An Image Signal Control System for Multi-Point Control Signal Processing

The present invention relates to an image signal control system for multi-point control signal processing, and more particularly, to a system for capturing an image by a plurality of control signals.

In general, an image processing system processes an image signal input using a Charge Coupled Device (CCD) camera and displays it on a monitor as analog and digital data or stores it in a storage device to store a multimedia system, video conferencing, automated inspection equipment, It is widely used system for electronic commerce and security system. Due to the development of communication technology, remote image display technology using internet, private line, general telephone line, and wireless communication is rapidly developing. In order to facilitate the expression technology, control of video signal through various kinds of interfaces Method is required.

As a conventional video signal control system, it will be described with reference to US Patent No. 4,897,717 as follows.

1 is a configuration diagram of a control image signal control system according to the prior art, in which a constant image signal is input as shown and an analog input signal is digitally obtained when a predetermined image is obtained by a control signal when necessary. An A / D converter 11 for converting; A first RAM unit 13 for storing the converted signal in a memory; An RGB-YIQ converter 14 for converting the stored signal into RGB-YIQ; A luminance unit 15 for filtering the luminance signal by the RGB-YIQ converter 14; A chromaticity unit 16 for filtering the chromaticity signal by the RGB-YIQ converter 14; A first high speed transmitter 17 for transmitting the separated signal to the host bus; An A / D converter 21 for receiving an external control signal and digitally converting the signal; A controller 22 for distinguishing the converted signal characteristics; And a second high speed transmitter 23a for transmitting a control signal to the host bus.

Referring to the operation of the system 10 configured as described in more detail as follows. First, the input analog signal is converted into a digital frame through quantization by the A / D converter 11. The A / D converter 11 converts an analog signal input in real time into a digital frame and transmits it to the first RAM 13, and the digital frame transmitted to the first RAM 13 is a third high speed transmitter. Through 23b, it is determined whether or not the predetermined processing is performed by the signal of the control signal section 10b. The control signal unit 10b converts an input signal into a digital signal by the A / D converter 11. The digital signal converted by the A / D converter 11 is converted into a predetermined control signal by the controller 22 and transmitted to the host bus through the second high speed transmitter 23a. The control signal transmitted from the second high speed transmitter 23a performs a predetermined processing procedure of the digital frame transmitted to the first RAM 13 through the third high speed transmitter 23b of the image signal processor 10a. Decide The digital frame in which the predetermined processing procedure is determined in the first RAM 13 is separated into a chroma signal and a luminance signal by the RGB-YIQ converter 14. The chroma signal and the luminance signal separated by the RGB-YIQ converter 14 are respectively filtered by the luminance unit 15 and the chroma unit 16 and sampled with an arbitrary digital value. The signals sampled by the luminance unit 15 and the chroma unit 16 are transmitted to the host bus through the first high speed transmission unit 17 to express a predetermined image.

However, such a prior art has a large burden on hardware by processing the image signal processing unit 10a and the control signal unit 10b into separate modules, and the signal of the control signal unit 10b is necessarily transmitted through the host bus. The control signal may be distorted because it is transmitted to the third high speed transmission unit 23b of 10a, and when a plurality of modules are inserted into the host bus, it is difficult to transmit data due to a collision between modules. In addition, since the control signal unit 10b needs to receive one input signal, there is a problem in that it cannot process several external control signals.

Accordingly, the present invention is intended to improve the above-described problems of the prior art, and to simultaneously process a plurality of serial and trigger control signals without operating the video signal processing module and the control signal processing module to control the video signal in real time. It is an object of the present invention to provide a multi-point control signal processing video signal system capable of processing a plurality of images by a control signal and designing a single board to reduce hardware burden.

1 is a block diagram of a control image signal control system according to the prior art.

2 is a block diagram of a video signal control system for multi-point control signal processing according to the present invention.

3 is an external interface configuration for controlling an image standard mode signal according to the present invention.

4 is a configuration diagram of a memory controller for storing quantized data of an image signal in a memory according to the present invention.

<Explanation of symbols for main parts of the drawings>

100: decoder section 110: video data format section

120: memory control unit 130: external interface control unit

140: internal integrated circuit unit 150: host bus control unit

160: analog-to-digital converter 170: memory

180: host bus

According to an aspect of the present invention, there is provided a video signal control system for multi-point control signal processing according to an embodiment of the present invention. An interface controller for controlling the video standard mode signal processed by the decoder by a plurality of serial signals and trigger signals; An analog-digital converter configured to receive a plurality of external control signals as inputs and quantize the digital data according to a sampling frequency; A memory unit for storing quantized data transmitted from the analog to digital converter; An image data format unit for outputting quantized data stored in the memory unit to the decoder unit through the interface control unit and converting an image standard mode signal into image frame data; A memory controller for storing the image frame data output through the image data format unit in the memory unit; It is characterized in that it comprises a host bus for transmitting the image data output through the memory control unit to the outside.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a control image signal control system according to the prior art, Figure 2 is a block diagram of a video signal control system for multi-point control signal processing according to the present invention, Figure 3 is a standard image mode according to the present invention 4 is a block diagram of an external interface for controlling a signal, and FIG. 4 is a block diagram of an external control signal processing according to the present invention.

The video signal control system for multi-point control signal processing according to the present invention, as shown in FIG. )Wow; An interface controller 130 for controlling the image standard mode signal processed by the decoder 100 by a plurality of serial signals and a trigger signal; An analog-to-digital converter (160) which receives a plurality of external control signals as inputs and quantizes them into digital data at a sampling frequency; A memory unit 170 storing quantized data transmitted from the analog to digital converter 160; An image data format unit (110) for converting quantized data stored in the memory unit (170) into image frame data by outputting the image standard mode signal output to the decoder unit (100) through the interface controller (130); A memory controller 120 for storing the image frame data output through the image data format unit 110 in the memory unit 170; It includes a host bus 180 for transmitting the image data output through the memory controller 120 to the outside.

The video signal input in real time is formatted by the decoder unit 100 by converting the video standard mode data quantized into digital data by the sampling frequency into the data of the video standard mode by a plurality of externally input control signals. The memory controller 120 transmits the data to the host computer through the host bus.

On the other hand, the plurality of control signals input from the outside for processing the image mode data is a trigger signal and the serial control signal is an analog signal, the input analog control signal is converted into a digital control signal from the analog-to-digital converter 160 After the conversion is stored in the memory unit 170. The control signal is input to the video data formatter 110 in real time through the decoder 100 to decode the composite video signal and is formatted into video data suitable for a standard video mode.

In addition, the converted control signal stored in the memory unit 170 may control the decoder unit 100, the image data format unit 110, the internal control circuit unit 140, and the like through the interface controller 130. The above devices are configured by internal local registers. In this configuration, the control signals input from the outside process the composite video signal input by the local register through the interface controller 130 in real time.

An external interface configuration for controlling the image standard mode signal output through the decoder 100 is shown in FIG. 3. The multi-point control signal is received as an input and quantized into digital data by a sampling frequency and stored in a memory. The configuration diagram is as shown in FIG.

As shown in FIG. 3, the video standard mode signal output through the decoder 100 processes the composite video signal in real time by using an external interface signal. In addition, as shown in FIG. 4, a one-chip microcontroller is used to convert the required external interface signal.

When described in detail with reference to Figures 3 to 4 attached to the operation, effects of the present invention configured as described above.

First, as shown in FIGS. 2 and 3, the present invention directly receives an external signal from the decoder unit 100 through the interface controller 130 and directly controls a quantized video signal. 3 is a block diagram for connecting to a predetermined external interface signal using the 24 ports of the interface controller 130.

4 illustrates a configuration diagram in which a serial signal and a trigger signal, which are multi-point external control signals, are input, converted into quantized data, and connected to an external interface signal.

As described above, the multi-point control signal processing video signal system according to the present invention receives a multi-point external signal and directly controls the image standard mode, thereby reducing the burden on hardware, preventing distortion of the control signal, and performing control signals. By shortening the time, it is possible to obtain a predetermined image frame in real time.

Claims (2)

An interface controller converting an input composite video signal into an image standard mode signal and processing an external interface signal using the external controller to the converted image standard mode signal; An analog-digital converter configured to quantize a multipoint control signal in the interface controller; A memory unit which stores a control signal of the analog-digital converter in a memory and transmits the control signal to the interface controller; An image data format unit for converting an image standard mode into an image frame according to a control signal of the interface controller; And a memory controller configured to store an image frame output through the image data formatter in a memory. The multi-point control signal processing of claim 1, wherein the interface controller converts a digital interface control signal from an externally input analog control signal using a one-chip microcontroller to process a composite video signal in real time. Video signal control system.