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

Radio frequency chip-based crystal characteristic temperature compensation device and method

A technology of radio frequency chip and temperature compensation, applied in automatic control of power, electrical components, etc., can solve problems such as demand, complex temperature compensation network, increase cost, etc., and achieve the effect of simplifying the temperature compensation system

Active Publication Date: 2016-02-17
SPREADTRUM COMM (SHANGHAI) CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many ways to compensate the oscillation frequency temperature. The most common temperature compensated crystal oscillator (TCXO, TemperatureCompensateCrystalOscillator) uses a temperature compensation network to generate a compensation voltage to improve the temperature characteristics of the output frequency of the temperature compensated crystal oscillator. However, this compensation technology The temperature compensation network is more complicated and requires a separate thermal sensor, which increases the cost

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
  • Radio frequency chip-based crystal characteristic temperature compensation device and method
  • Radio frequency chip-based crystal characteristic temperature compensation device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0030] refer to figure 1 , a device that utilizes the temperature compensation crystal characteristics of a rad...

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 belongs to the electronic communication technical field and relates to a radio frequency chip-based crystal characteristic temperature compensation device and method. The radio frequency chip-based crystal characteristic temperature compensation device is applied to a mobile terminal; a radio frequency chip and a controller are arranged in the mobile terminal; the controller generates frequency control parameters to control the work of the radio frequency chip; the radio frequency chip includes a radio frequency transmit-receive unit and a crystal oscillator attached to the radio frequency transmit-receive unit; a temperature sensing unit is built in the radio frequency transmit-receive unit and is used for obtaining the current temperature of the radio frequency transmit-receive unit; the controller is coupled to the temperature sensing unit and is used for correcting the frequency control parameters according to the current temperature of the radio frequency transmit-receive unit; and the radio frequency transmit-receive unit compensates frequency instability generated by the crystal oscillator under the action of the corrected frequency control parameters. With the device and method of the invention adopted, a temperature compensation system can be simplified; a clock device with temperature stable performance can be provided for the mobile terminal; high-order modulation technologies can be possibly applied to the mobile terminal.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to a device and method for temperature compensating crystal characteristics. Background technique [0002] At present, the requirements of mobile communication users for communication quality and capacity are constantly increasing. In order to meet the needs, mobile communication standards have been evolving. The communication system (GSM, Global System for Mobile Communications) has developed to the long-term evolution technology (LTE, Long Term Evolution) of 4G (The Fourth Generation Mobile Telecommunications, the fourth generation mobile communication). [0003] The evolution of mobile communication technology comes from the optimization of various communication technologies and the introduction of new technologies. One of the important optimizations is the modulation technology. The modulation method currently used has changed from GMSK (GaussianMinimumShiftKeyi...

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 Applications(China)
IPC IPC(8): H03L7/18H03L7/085
Inventor 谢善谊黄文韬赵国涛
Owner SPREADTRUM COMM (SHANGHAI) CO 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