Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Signal frequency detection method and device, and signal frequency controller

A signal frequency and detection device technology, applied in the direction of automatic power control, electrical components, etc., can solve the signal count error of the frequency detection device 2, increase the power consumption of the frequency detection device 2, increase the structural complexity of the frequency detection device 2, etc. problems, to achieve the effect of ensuring work stability and accuracy

Active Publication Date: 2017-05-31
上海顺久电子科技有限公司
View PDF9 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if the frequency of the output signal of the oscillator 1 is high, the frequency of the clock source in the frequency detection device 2 will also be multiplied, which not only increases the power consumption of the frequency detection device 2, but also increases the structural complexity of the frequency detection device 2 ; In addition, when the frequency of the output signal of the oscillator 1 exceeds the bandwidth and the timing limit of the internal integrated circuit of the frequency detection device 2, it will also cause the signal counting error problem of the frequency detection device 2

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
  • Signal frequency detection method and device, and signal frequency controller
  • Signal frequency detection method and device, and signal frequency controller
  • Signal frequency detection method and device, and signal frequency controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of the invention as recited in the appended claims.

[0036] As the frequency of the existing signal is usually high (in the order of GHz), when the frequency detection device is used to directly count and detect the high-frequency signal, due to the bandwidth and timing limitations of the integrated circuit inside the frequency detection device, the signal count error, frequency Due to the problem of high power consumption of the detection device, the e...

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 signal frequency detection method and device, and a signal frequency controller. According to the detection method, frequency division processing is carried out on to-be-detected signals, thereby obtaining frequency divided to-be-detected signals with relatively low frequency; when a reference clock signal is in a preset level state, statistics is carried out on the period number of the frequency divided to-be-detected signals, thereby obtaining the statistic period number of the frequency divided to-be-detected signals; the practical frequency of the to-be-detected signals is calculated according to the statistic period number, the duration during which the reference clock signal is in the preset level state and the frequency division times of the to-be-detected signals; and the next-step adjustment direction of the frequency of the output signals of an oscillator can be guided according to the deviation between a practical frequency value and a theoretical value. According to the embodiment of the invention, after frequency reduction is carried out on the to-be-detected signals, the period statistics is carried out on the frequency reduced to-be-detected signals through utilization of the reference clock signal with relatively low frequency; the problem of a count error resulting from directly sampling and counting high-frequency signals is solved, and the signal detection precision is ensured.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, to a signal frequency detection method, a device and a signal frequency controller. Background technique [0002] In wireless communication technology, the higher the frequency of the communication signal, the wider the available frequency band and the larger the channel capacity. Correspondingly, the interference between different frequency channels can be reduced or avoided. Therefore, in the wireless communication process , the high frequency signal is widely used as the carrier signal. [0003] At present, high-frequency signals are mainly generated by oscillators. Therefore, in the wireless communication system, the performance of various indicators of the oscillator determines the performance of the wireless communication system, but the frequency stability and frequency accuracy of the oscillator are the most influential. Specifically, if the freq...

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): H03L7/18
CPCH03L7/18
Inventor 吴彪孙文郑方
Owner 上海顺久电子科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products