| US 7,482,884 B2 | ||
| Ring oscillator with a two-stage phase blender for generating multi-phase clock signals | ||
| Ming-Hung Wang, Hsinchu (Taiwan); Peng-Fei Lin, Hsinchu (Taiwan); and Ming-Chi Lin, Hsinchu (Taiwan) | ||
| Assigned to MOAI Electronics Corporation, Hsinchu (Taiwan) | ||
| Filed on Jan. 31, 2007, as Appl. No. 11/669,944. | ||
| Prior Publication US 2008/0180181 A1, Jul. 31, 2008 | ||
| Int. Cl. H03B 5/24 (2006.01); H03B 27/00 (2006.01); H03K 3/03 (2006.01) | ||
| U.S. Cl. 331—45 [331/57] | 4 Claims |
| 1. An apparatus for generating multi-phase clock signals with a ring oscillator, comprising:
a first stage phase-blender module, for receiving at least two different-phased signals from said ring oscillator and outputting
a plurality of signals with different phases; and
a second stage phase-blender module, connected to said first stage phase-blender module, for receiving said plurality of signals
with different phases from said first stage phase-blender module and generating said multi-phase clock signals;
wherein said second stage phase-blender module further comprises a plurality of inverter phase-blender circuits.
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