Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Control method for call image quality of video telephone and mobile phone adopting the method

A technology of image quality and telephone, applied in the field of mobile communication, can solve problems such as image quality interference and delay, image data deviation, etc., and achieve the effect of not occupying bandwidth

Inactive Publication Date: 2008-11-19
SHANGHAI SIMCOM LTD
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the video phone transmission will pass through various environments, the image quality will be subject to various interferences and delays during the transmission process, which will also bring deviations to the image data on the decoding side and the encoding side

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
  • Control method for call image quality of video telephone and mobile phone adopting the method
  • Control method for call image quality of video telephone and mobile phone adopting the method
  • Control method for call image quality of video telephone and mobile phone adopting the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The following is based on Figure 1 ~ Figure 3 A preferred embodiment of the present invention is given and described in detail so that those skilled in the art can easily understand the structural features and method features of the present invention, rather than to limit the scope of the present invention.

[0019] see figure 1 , which describes in detail a system architecture of a terminal using an image quality control method in the present invention. The terminal has a baseband system 1, a radio frequency system 2, and an antenna 3 connected in sequence in a two-way circuit; and an image encoder 4, an image decoder 5, an input device 6, and a microphone / earpiece / speaker unit 7 respectively connected to the baseband system 1 , wherein the camera 8 is connected to the image encoder 4 and the display device 9 is connected to the image decoder 5 . The user can observe the change of the image quality from the display device 9, use the input device 6 or the option of t...

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 a method for controlling the call picture quality of a video telephone and a mobile phone adopting the method. The method is characterized in that an image quality control command is formed through hardware pressing keys or a software interface according to the displayed quality of an actual image observed by a user at a decoding side during the video telephone call process, to control an image encoder at a remote terminal and to perform dynamic and real time control to the image quality, therefore to achieve the desired visual experience.

Description

technical field [0001] The invention relates to the field of mobile communication, and relates to an image quality control method of a video phone terminal and a corresponding mobile phone. Background technique [0002] With the development of communication technology, more and more mobile phones are equipped with video phone functions. Whether it is a video phone using narrowband as a carrier or a video phone based on 3G (third generation), all use limited and fixed bandwidth to provide communication link. For example, a 3G terminal based on the circuit switching domain uses a 64K circuit domain data link as a carrier to provide video telephony services. At the same time, communication protocols generally provide user-defined fields in the control channel. For example, in the 3G-324M protocol, there is a UserIndication (user indication) field, which can be used to transmit user-specified content. [0003] With limited bandwidth, image quality for video telephony is becomi...

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
IPC IPC(8): H04N7/14H04N7/26H04M1/725H04Q7/32H04M1/72403H04M1/72427H04M1/72439H04M1/72448H04M1/72469H04N19/00
Inventor 刘国利
Owner SHANGHAI SIMCOM LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com