TW358299B - SYNC signal self-test device and method - Google Patents

SYNC signal self-test device and method

Info

Publication number
TW358299B
TW358299B TW086103313A TW86103313A TW358299B TW 358299 B TW358299 B TW 358299B TW 086103313 A TW086103313 A TW 086103313A TW 86103313 A TW86103313 A TW 86103313A TW 358299 B TW358299 B TW 358299B
Authority
TW
Taiwan
Prior art keywords
signals
horizontal
output
screen
display
Prior art date
Application number
TW086103313A
Other languages
Chinese (zh)
Inventor
Eun-Sup Kim
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to TW086103313A priority Critical patent/TW358299B/en
Application granted granted Critical
Publication of TW358299B publication Critical patent/TW358299B/en

Links

Landscapes

  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

An SYNC signal self-test device, including: a pre amplifier, for pre-amplifying the RGB video signals coming from a computer system; a microprocessor, for measuring the horizontal and vertical synchronous signals, and when the horizontal/vertical synchronous signal frequency from the computer system are outside the monitor operation range, for controlling the generation of the display signals on the screen, or for generation of the horizontal and vertical synchronous signals corresponding to the original synchronous horizontal and vertical signals; a screen-display IC, for output of the on-screen display signal synchronized to the microprocessor control signals; a buffer, for temporary saving of the output signals from the on-screen display IC; a mixing unit, for mixing the output of the preamplifier and the buffer; and master amplifier, for amplification of the output of the mixing unit and sending it to a tube.
TW086103313A 1997-03-17 1997-03-17 SYNC signal self-test device and method TW358299B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW086103313A TW358299B (en) 1997-03-17 1997-03-17 SYNC signal self-test device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW086103313A TW358299B (en) 1997-03-17 1997-03-17 SYNC signal self-test device and method

Publications (1)

Publication Number Publication Date
TW358299B true TW358299B (en) 1999-05-11

Family

ID=57940510

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086103313A TW358299B (en) 1997-03-17 1997-03-17 SYNC signal self-test device and method

Country Status (1)

Country Link
TW (1) TW358299B (en)

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees