Method and circuit for synchronizing input and output synchronizing signals, backlight driver in liquid crystal display device using the same, and method for driving the backlight driver
US8890796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | May 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and a circuit for synchronizing input and output synchronizing signals are disclosed. The method for synchronizing input and output synchronizing signals includes detecting an Nth (N is a positive integer) input period of the input synchronizing signal, determining whether the detected Nth input period is the same with a prior (N−1) the output period of the output synchronizing signal, detecting a difference between an end time of the (N−1)the output period and an end time of the Nth input period, if the detected Nth input period is not the same with the (N−1)the output period, operating the detected difference with the Nth input period, and setting the operated value as an Nth output period, and generating and outputting the output synchronizing signal having the set Nth output period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.