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:
May. 31, 1988
Filed:
Feb. 05, 1986
Applicant:
Inventor:
Toshio Tamamura, Hachioji, JP;
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 / ; 330 69 ; 330258 ;
Abstract
Apparatus for measuring the A.C. characteristics of an electronic circuit under test having signal generators and a signal measuring device synchronized by a clock signal from a control device. The signal generators and the control device are electrically isolated from the measurement device so that reference potential fluctuations in the signal generators or in the control device do not affect the measurement. The synchronizing clock signal is transmitted from the signal generators to the measurement device through a shielded twisted pair cable terminated at each end by a high impedence connection.