Title:
DEVICE FOR DISPLAYING CLAMPING POINT AND METHOD THEREFOR
Document Type and Number:
Japanese Patent JP3300124
Kind Code:
B2
Abstract:
PURPOSE: To view a clamping point on CRT and to facilitate measurement by inputting a clamping pulse outputted from a clamping circuit to a blanking circuit so as to modulate luminance.
CONSTITUTION: An input video signal S1 is inputted to the clamping circuit 20 through an input amplifier 10. The circuit 20 outputs a clamping start point and a clamping pulse S4 as against a synchronizing signal S2 extracted from the signal S1 by a synchronizing separator circuit 30 and a monostable multivibrator 40. The blanking circuit 50 modulates the signal S1 by S4 and outputs a signal S5. Thus, the clamping point is overlapped with a video signal waveform on CRT and it is brightly displayed.
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Inventors:
Kentaro Ozawa
Application Number:
JP22901993A
Publication Date:
July 08, 2002
Filing Date:
September 14, 1993
Export Citation:
Assignee:
Leader Electronics Co., Ltd.
International Classes:
G01R13/30; H04N5/18; H04N17/00; H04N17/04; (IPC1-7): H04N5/18; G01R13/30; H04N17/04
Domestic Patent References:
| JP3151769A | ||||
| JP50105026A | ||||
| JP530543A | ||||
| JP60144361U |
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)
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