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

Limiting amplifier for burst-mode receiver, and signal discrimination method thereof

A limiting amplifier and burst mode technology, applied in the field of passive optical network, can solve problems such as signal detection errors, achieve the effect of reducing the probability of errors, wide application, simple circuit structure and circuit realization

Active Publication Date: 2018-03-16
CHENGDU GANIDE TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the traditional BM-LA detection signal algorithm and circuit architecture are prone to errors in signal detection under the influence of noise and interference, and propose a limiting amplifier and its signal for burst mode receivers. Discrimination method, which can greatly reduce the probability of false detection of valid signals

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
  • Limiting amplifier for burst-mode receiver, and signal discrimination method thereof
  • Limiting amplifier for burst-mode receiver, and signal discrimination method thereof
  • Limiting amplifier for burst-mode receiver, and signal discrimination method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An embodiment of the present invention provides a limiting amplifier for a burst mode receiver, such as Figure 4 As shown, it includes an amplifier module, a signal amplitude detector module, a signal period discrimination module, a signal detection logic generator module and an output driver module; the input terminal of the amplifier module is the input terminal of the entire limiting amplifier, and its output terminal is respectively connected to the signal amplitude The input terminal of the detector module is connected with the input terminal of the output driver module; the signal amplitude detector module, the signal period discrimination module and the signal detection logic generator module are connected in sequence; the output terminal of the signal detection logic generator module is connected with the output driver module The JAM pin is connected; the output end of the output driver module is the output end of the entire limiting amplifier.

[0035] Among t...

Embodiment 2

[0061] An embodiment of the present invention provides a method for identifying a limiting amplifier signal for a burst mode receiver, such as Figure 10 shown, including the following steps:

[0062] S1. Use BM-LA to receive burst signals.

[0063] S2. Amplify the received burst signal through the amplifier module, and output the amplified burst signal to the signal amplitude detector module and the output driving module respectively.

[0064] S3. Detect the amplitude of the amplified burst signal through the signal amplitude detector module, and judge whether it is greater than the set threshold voltage, if so, enter step S4, otherwise return to step S1, and receive a new burst signal.

[0065] S4. Detect the period of the amplified burst signal through the signal period identification module, and judge whether it is within the preset time range, if so, enter step S5, otherwise return to step S1, and receive a new burst signal.

[0066] S5. Outputting a valid signal to the...

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 discloses a limiting amplifier for a burst-mode receiver, and a signal discrimination method thereof. A signal period discrimination circuit is added into the burst-mode receiver BM-LA;noise and effective signals can be effectively discriminated by comparison of the periods of input signals; compared with the traditional method only for detecting the signal amplitude, the error probability of effective signal detection can be greatly reduced; simultaneously, because signal discrimination in the invention is carried out in a preamble period, signal detection only needs the 2TB duration; the time cost is very little; and thus, the limiting amplifier can be widely applied to a high-speed OLT burst-mode receiver.

Description

technical field [0001] The invention belongs to the technical field of passive optical network, and in particular relates to the design of a limiting amplifier for a burst mode receiver and a signal identification method thereof. Background technique [0002] The typical uplink transmission of passive optical network (PON) adopts time division multiple access (TDMA), such as figure 1 As shown, the optical signals sent by multiple optical network terminals (ONT) enter the optical line terminal (OLT) after passing through the optical distribution network (ODN). It can be seen that the receiver at the OLT end works in burst mode. [0003] The circuit architecture of a typical OLT receiver, such as figure 2 As shown, the photodiode converts the received burst data optical signal into a photocurrent, which is sent to the burst mode transimpedance amplifier (BM-TIA), and its output is sent to the burst mode limiting amplifier (BM-LA). At the input end, BM-LA limits and amplifie...

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): H04B10/69
CPCH04B10/693H04B10/695
Inventor 任军刘浩苏黎郑薇伍莲洪尹浩刘范宏刘盛富李蓝谭荣张磊
Owner CHENGDU GANIDE TECH
Features
  • Generate Ideas
  • 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