MY141546A - Automatic equalization of video signals - Google Patents

Automatic equalization of video signals

Info

Publication number
MY141546A
MY141546A MYPI20030508A MY141546A MY 141546 A MY141546 A MY 141546A MY PI20030508 A MYPI20030508 A MY PI20030508A MY 141546 A MY141546 A MY 141546A
Authority
MY
Malaysia
Prior art keywords
compensation
responses
new
path
green
Prior art date
Application number
Inventor
Stephen M Ahern
Aengus Gorey
Original Assignee
Avocent Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Avocent Corp filed Critical Avocent Corp
Publication of MY141546A publication Critical patent/MY141546A/en

Links

Landscapes

  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Picture Signal Circuits (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

A VIDEO COMPENSATION SYSTEM FOR ANALOG VIDEO TRANSMISSION IS DESCRIBED. THE COMPENSATION SYSTEM IS EMPLOYED IN AN ANALOG VIDEO SWITCHING CIRCUIT SUCH THAT EACH TIME A CONDUCTIVE PATH IS SWITCHED, THE SYSTEM AUTOMATICALLY TESTS THE NEW SWITCH PATH FOR A NEW COMPENSATION VALUE. THE COMPENSATION VALUE IS DETERMINED BY MEASURING THE RESPONSE OF THE NEW PATH TO A SET OF TONES THAT ARE APPLIED TO THE CONDUCTIVE PATH, THE RESPONSE TO WHICH IS MEASURED AGAINST A TABLE OF RESPONSES PREVIOUSLY RECORDED. THE MEASURED RESPONSES ARE COMPARED TO THE RECORDED RESPONSES TO DETERMINE AN APPROPRIATE COMPENSATION CONTROL VOLTAGE (VL, VM, VH), WHICH IS APPLIED TO AN EQUALIZER SYSTEM (50, 51, 52, 53, 54). IN AN ALTERNATIVE EMBODIMENT, THE SKEW COMPENSATIONS ALSO PROVIDED BETWEEN RED, GREEN, AND BLUE TWISTED PAIR LINES IN THE CABLES BY PERFORMING COMPARATIVE ANALYSIS BETWEEN CORRESPONDING PAIRS OF THE RED, GREEN, AND BLUE SIGNALS.
MYPI20030508 2002-02-15 2003-02-14 Automatic equalization of video signals MY141546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35670602P 2002-02-15 2002-02-15

Publications (1)

Publication Number Publication Date
MY141546A true MY141546A (en) 2010-05-14

Family

ID=37191301

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20030508 MY141546A (en) 2002-02-15 2003-02-14 Automatic equalization of video signals

Country Status (2)

Country Link
MY (1) MY141546A (en)
TW (1) TWI246009B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI402820B (en) * 2008-11-27 2013-07-21 Tangtop Technology Co Ltd Signal compensation method and structure thereof
TW201502930A (en) * 2013-07-08 2015-01-16 Anapex Technology Inc Capacitance sensing circuit for excluding effect of parasitic capacitance

Also Published As

Publication number Publication date
TW200400452A (en) 2004-01-01
TWI246009B (en) 2005-12-21

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