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:
Nov. 21, 2017
Filed:
May. 30, 2014
Analog Devices Global, Hamilton, BM;
Seyed Amir Ali Danesh, Edinburgh, GB;
William Michael James Holland, Edinburgh, GB;
John Stuart, Edinburgh, GB;
Jonathan Ephraim David Hurwitz, Edinburgh, GB;
Analog Devices Global, Hamilton, BM;
Abstract
The present invention relates to electrical measurement apparatus (). The electrical measurement apparatus () comprises a measurement arrangement () configured to be disposed in relation to an electrical circuit () which bears an electrical signal, the measurement arrangement () being operative when so disposed to measure the electrical signal. The electrical measurement apparatus () further comprises a signal source () operative to apply a reference input signal to the measurement arrangement () whereby an output signal from the measurement arrangement comprises an electrical output signal corresponding to the electrical signal and a reference output signal corresponding to the reference input signal, the reference input signal having a substantially piecewise constant form which is repeated over each of plural cycles. The electrical measurement apparatus () yet further comprises processing apparatus () which is operative: to determine at least one cumulative representation, determination of the cumulative representation comprising summing plural received sections of the output signal, each of the plural received sections corresponding to at least a part and to a same part of the cycle of the reference input signal; and to determine at least one of: a transfer function for the measurement arrangement; a change in a transfer function for the measurement arrangement; and the electrical signal, in dependence on the at least one cumulative representation and the reference input signal.