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, 2001
Filed:
Jan. 27, 2000
Vladimir Koifman, Rishon-Lezion, IL;
Yachin Afek, Cfar-Sabe, IL;
Motorola, Inc., Schaumburg, IL (US);
Abstract
A high-speed voltage shifter/amplifier, a sigma delta modulator having a high-speed voltage shifter/amplifier and method for performing an amplification/a voltage shift to an analog signal. The voltage shifter/amplifier comprising a capacitor and an isolator; the isolator is coupled to the capacitor. The capacitor is adapted to receive a control signal, to be charged by an input signal, and to provide an output signal. The capacitor has a capacitance that is responsive to a level of the control signal, and a change in the capacitance of the capacitor forces a change in a level of the output signal; and the isolator is adapted to electrically isolate the capacitor when the capacitance is changed.