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:
Aug. 14, 2007
Filed:
Jun. 30, 2005
Craig A. Keller, Menlo Park, CA (US);
Steve Waltman, Boulder, CO (US);
Steve Miller, Palo Alto, CA (US);
Michael G. Youngquist, Palo Alto, CA (US);
Craig A. Keller, Menlo Park, CA (US);
Steve Waltman, Boulder, CO (US);
Steve Miller, Palo Alto, CA (US);
Michael G. Youngquist, Palo Alto, CA (US);
Bio-Rad Laboratories, Inc., Hercules, CA (US);
Abstract
Signal amplifiers having a non-linear transfer function. A high speed (high bandwidth) circuit with a non-linear transfer function over a limited range of input signal is provided. By appropriate choice of components, the non-linear transfer function can be used to accurately approximate any monotonic function such as a square root transfer function. In another aspect, a piecewise non-linear circuit arrangement using a set of non-linear sub-circuits is provided to accurately generate a desired non-linear transfer function over an extended dynamic range of input signal. In one implementation of such a circuit, each of the sub-circuits approximates the desired non-linear function over a portion of the input range.