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.:

US 7235985 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 26, 2007

Filed:

Sep. 22, 2003
Applicant:

Roeland John Heijna, Nijmegen, NL;

Inventor:

Roeland John Heijna, Nijmegen, NL;

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and a device () for detecting signal amplitudes by removing any DC component from the signal and then shifting the signal by a shift amount so as to produce a shifted signal having a first signal level equal to a reference level (Vref). The shift amount provides an indication of the amplitude of the signal. To this end, the device () includes a decoupling circuit (), a shift circuit () and an output terminal (). Optionally the device further includes a differential amplifier () coupled to receive the reference level (Vref) and an indication of the power of the shifted signal, and a signal power determination circuit () coupled between the shift circuit () and the differential amplifier ().


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