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:
Jan. 27, 2009
Filed:
Jan. 31, 2007
Ming-hung Wang, Hsinchu, TW;
Peng-fei Lin, Hsinchu, TW;
Ming-chi Lin, Hsinchu, TW;
MOAI Electronics Corporation, Hsinchu, TW;
Abstract
An apparatus for generating multi-phase clock signals with a ring oscillator is provided, including a first stage phase-blender module and a second stage phase-blender module. The first stage phase-blender module further includes a plurality of differential OP phase-blender circuits. Each differential blender circuit has two signal inputs, and an output signal whose phase is an interpolation of the two input signals. The second stage phase blender module includes a plurality of inverter phase-blender circuits. Each inverter phase-blender circuit receives two output signals from the first stage phase-blender module as inputs, and outputs a clock signal with the interpolated phase of the two output signals of the first stage phase-blender module.