Supercharge Your Innovation With Domain-Expert AI Agents!

Image controller and method for processing image signal

A technology of image signal and control signal, applied in image communication, instrument, static indicator, etc., can solve problems such as cost increase and power consumption increase

Inactive Publication Date: 2012-01-25
NOVATEK MICROELECTRONICS CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when corresponding to multi-channel analog composite image signals, the traditional image controller 100 generally requires a corresponding number of analog-to-digital converters to respectively convert the analog signals of each channel, resulting in a significant increase in cost and power consumption. increased consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image controller and method for processing image signal
  • Image controller and method for processing image signal
  • Image controller and method for processing image signal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0018] Please refer to figure 2 , which is a block diagram of an image controller according to the first embodiment of the present invention. The image controller 200 can be configured in a display device or an image processing device. The image controller 200 includes a switching device 210 , an analog-to-digital converter 220 and a digital image processor 230 . When the video controller 200 receives a single-channel analog signal, such as an analog composite video signal, the switching device 210 directly transmits the single-channel analog signal to the analog-to-digital converter 220, and the analog-to-digital converter 220 converts the single-channel analog signal to the analog-to-digital converter 220. The channel analog signal is converted into a single channel digital signal and output to the digital image processor 230 for subsequent image processing.

[0019] When the image controller 200 receives a multi-channel analog signal, the method of using a single analog-...

no. 2 example

[0026]This embodiment is different from the first embodiment in that the number of channels of the multi-channel analog signal received by the image controller is greater than two. For example, when the components of the analog combined image signal include three analog signals: an analog brightness signal (Y) and an analog color difference signal (Cb and Cr), the switching device will combine the analog brightness signal Y and the analog color difference signal according to the switching control signal SW' Cb and Cr are the mixed signal M'. The mixed signal M' corresponds to the analog luminance signal Y in a plurality of first periods, the mixed signal M' corresponds to an analog color difference signal Cb in a plurality of second periods, and the mixed signal M' corresponds to an analog signal in a plurality of third periods Color difference signal Cr.

[0027] Please refer to Figure 4A , which is a schematic diagram of the image controller 300 according to the second em...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an image controller which comprises a switching device, an analog-to-digital converter and a digital image processor. The switching device receives an analog image synchronous signal and a first analog image signal and combines the analog image synchronous signal and the first analog image signal into a mixed signal according to a switching control signal. The analog image synchronous signal comprises a specific image signal and a synchronous signal. The frequency of the switching control signal is the frequency which is related to the synchronous signal. The analog-to-digital converter converts the mixed signal into a digital signal according to a sampling control signal. The digital image processor receives the digital signal and decodes a digital image synchronous signal and a first digital image signal from the digital signal.

Description

technical field [0001] The present invention relates to an image controller and an image signal processing method, and more particularly, to an image controller and an image signal processing method that can reduce costs. Background technique [0002] In a traditional display device or an image processing device, an analog composite video signal or an analog component video signal is usually received, and then converted into a corresponding digital signal through a digital-to-analog converter for the subsequent stage. The processing device performs digital image processing. [0003] However, the analog composite image signal is a multi-channel analog signal, and its components usually include multiple analog signals, so multiple analog-to-digital converters are required to convert into corresponding digital signals. Common analog composite image signals include two analog signals, a luminance signal (Y) and a chroma signal (C), or three analog signals including a luminance ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/04G09G5/00
Inventor 张瑞鸿苏伟诚
Owner NOVATEK MICROELECTRONICS CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com