The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 1995
Filed:
Aug. 27, 1993
U.S. Philips Corporation, New York, NY (US);
Abstract
An electro-optical measurement device for the sampling of an electric signal (SI) in an electronic component by means of a radiation beam. Special embodiments of the electro-optic measurement device are described. An electro-optic sensor element is provided with an electrically conductive tip at one side and with an electrode at the other side, so that an absolute and calibrated measurement is possible. The measurement beam can be high-frequency pulsed with a pulse (Lp) per period of the test signal (SI). The pulse series is low-frequency modulated and the pulses exhibit, relative to the test signal, a constant phase relationship during the first half periods of the modulation signal and a varying phase relationship during the second half periods so that accurate and reliable measurement is possible.