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

Dc Restoration For Synchronization Signals

A technique for synchronizing signals and restoring circuits, which is applied in the field of DC components and can solve problems such as receiving side errors and capability impacts

Active Publication Date: 2015-03-18
ANALOG DEVICES INC
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Baseline drift in the received signal will cause errors on the receiving side, as the ability of the synchronization signal to correctly trigger logic devices on the receiving side is affected

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
  • Dc Restoration For Synchronization Signals
  • Dc Restoration For Synchronization Signals
  • Dc Restoration For Synchronization Signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 A schematic diagram of an exemplary system with alternating current (AC) coupled links is shown. The system includes a transmit circuit (denoted "TX") configured to transmit a synchronization signal (denoted as a capacitor in the link to provide capacitive coupling) to a receive circuit (denoted "RX") over an AC-coupled link. The synchronization signal is used to trigger functions in the receiving circuit. For example, the synchronization signal may have one or more timing pulses, and the receiving circuitry may be triggered by or operate in response to a threshold crossing of the synchronization signal (ie, the synchronization signal changes polarity between a "high" and a "low" state). The proper operation of the system depends heavily on the integrity of the synchronization signals. The correct synchronization signal ensures that the function in the receiving circuit will be triggered when required, and when the function is triggered, the function is trigg...

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

In one example implementation, the present disclosure provides a direct current (DC) restoration circuit for restoring the DC component of a synchronization signal provided over an alternating current (AC) coupled link from a transmitting circuit to a receiving circuit. During a period of inactivity in the synchronization signal, the synchronization signal may experience a drift towards the common mode, and may affect the ability for the synchronization signal to properly trigger the receiving circuit. The DC restoration circuit is configured to hold the synchronization signal steady during the period of inactivity, and allow the AC component of the synchronization signal pass through to the receiving circuit during the period of activity to alleviate the problem of baseline drift in the synchronization signal.

Description

technical field [0001] The present invention relates generally to maintaining a proper direct current (DC) component on an alternating current (AC) coupled link, and more particularly to maintaining a proper DC component of a synchronization signal on an alternating current (AC) coupled link. Background technique [0002] Circuits are usually made up of multiple modules. Modules are typically provided on signal paths where one module can be activated or synchronized with another module via synchronization signals on one or more links. For example, a logic device (i.e., on the sending side) can output a synchronization signal over a link to another logic device (i.e., on the receiving side), which can then be triggered to perform a function according to a timing pulse and / or by the synchronization Threshold crossing trigger of the signal. [0003] For performance reasons, alternating current (AC) coupling or capacitive coupling has been used in the link, where a capacitor i...

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): H03K19/00
CPCH04L25/0296H03K5/007H03M1/06H03K5/003H04L25/0266H04L7/0079H04L7/0008
Inventor B·P·杰弗里斯P·迪罗尼安
Owner ANALOG DEVICES INC
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

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