TW377540B - Polarity changing apparatus of video signal and method of changing the same - Google Patents

Polarity changing apparatus of video signal and method of changing the same

Info

Publication number
TW377540B
TW377540B TW087111817A TW87111817A TW377540B TW 377540 B TW377540 B TW 377540B TW 087111817 A TW087111817 A TW 087111817A TW 87111817 A TW87111817 A TW 87111817A TW 377540 B TW377540 B TW 377540B
Authority
TW
Taiwan
Prior art keywords
polarity
changing
video signal
same
circuit
Prior art date
Application number
TW087111817A
Other languages
Chinese (zh)
Inventor
Zhong-Xiao Cai
Original Assignee
Good Will Instr Co Ltd
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 Good Will Instr Co Ltd filed Critical Good Will Instr Co Ltd
Priority to TW087111817A priority Critical patent/TW377540B/en
Application granted granted Critical
Publication of TW377540B publication Critical patent/TW377540B/en

Links

Landscapes

  • Transforming Electric Information Into Light Information (AREA)

Abstract

This invention is about a polarity changing apparatus of video signals and the method of changing the same, which includes synchronous division circuit and frequency counter circuit. The polarity changing circuit receives the first video signal and changes the polarity according to the control signal for receiving the second video signal. The synchronous division circuit intercepts and separates the second synchronous video signal, and the frequency counter circuit determines the polarity of said video signal and sends out control signals to change the polarity when it detects that the quality of existing polarity is not as expected.
TW087111817A 1998-07-20 1998-07-20 Polarity changing apparatus of video signal and method of changing the same TW377540B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW087111817A TW377540B (en) 1998-07-20 1998-07-20 Polarity changing apparatus of video signal and method of changing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW087111817A TW377540B (en) 1998-07-20 1998-07-20 Polarity changing apparatus of video signal and method of changing the same

Publications (1)

Publication Number Publication Date
TW377540B true TW377540B (en) 1999-12-21

Family

ID=57942098

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087111817A TW377540B (en) 1998-07-20 1998-07-20 Polarity changing apparatus of video signal and method of changing the same

Country Status (1)

Country Link
TW (1) TW377540B (en)

Similar Documents

Publication Publication Date Title
EP0849906A3 (en) Optical time division demultiplexing apparatus and demultiplexed signal switching method as well as optical time division multiplex transmission system
HK1001645A1 (en) Method for transmitting an orthogonal frequency division multiplex signal, apparatus for transmitting
EP0604035A3 (en) Semiautomatic lip sync recovery system
WO2002019551A3 (en) Circuits and methods for reducing interference from switched mode circuits
MY131088A (en) A method and apparatus for providing carrier frequency offset compensation in a tdma communication system.
EP0977464A3 (en) Audio signal processing circuit
AU6909094A (en) A method and apparatus for determining signal usability
GB2256994A (en) Tdma transceiver controller method and apparatus
DE69422882T2 (en) Control devices for digital radio receivers
US5771293A (en) Switching arrangement for mobile radio receivers
TW377540B (en) Polarity changing apparatus of video signal and method of changing the same
WO2001091337A3 (en) Method for synchronizing a receiver with a transmitter
MY126094A (en) Horizontal synchronization for digital television receiver
ES2165386T3 (en) RADIO RECEIVER WITH DIGITAL SIGNAL PROCESSING.
CA2186506C (en) Phase-locked sync stripper
EP0767590A4 (en) Method and circuit for synchronizing phase of video signal, and combining device
NO923101D0 (en) BASIC STATION FOR A RADIO SYSTEM
CA2027549A1 (en) Addition signal multiplexing apparatus for a television system
KR880013393A (en) Demodulation Circuit for TV Voice Multiple Signals
CA2279443A1 (en) Improved phase detector
KR100897963B1 (en) Apparatus and method of providing clock for sync separator
EP0399534A3 (en) Fm stereophonic receiver
JPH0718193Y2 (en) Noise eliminator
JPH03289222A (en) Television diversity device
SE9901655D0 (en) Synchronization method and device

Legal Events

Date Code Title Description
MK4A Expiration of patent term of an invention patent