Title:
波形表示装置
Document Type and Number:
Japanese Patent JP4586127
Kind Code:
B2
Abstract:
A waveform display apparatus that can display a waveform in a desired position even when an internal reference mode is switched to an external reference mode. The internal and external reference modes are switched with a reference select button 60. A user operates a phase adjustment knob 64 while watching a display 54 to adjust a phase relationship between an external reference video signal and a video signal under test. When the phase relationship becomes proper an offset save button 66 is pressed to store the phase offset at the situation in a memory 56. A CPU 30 reads out the phase offset according to needs such as the waveform display apparatus is turned on, etc. to control a phase adjustment circuit 44 for adjusting the phase relationship between the external reference video signal and the video signal under test.
Inventors:
Toyama Kazuma
Application Number:
JP2006054977A
Publication Date:
November 24, 2010
Filing Date:
March 01, 2006
Export Citation:
Assignee:
Tektronix International Sales GmbH
International Classes:
H04N17/00; G01R13/20
Domestic Patent References:
| JP2004254007A | ||||
| JP200620316A | ||||
| JP11215447A | ||||
| JP2005278088A |
Attorney, Agent or Firm:
Nippon Tektronix Co., Ltd.