| US 7,596,795 B2 | ||
| Vibration compensation based on identification of vibration frequency | ||
| Mingzhong Ding, Singapore (Singapore); KianKeong Ooi, Singapore (Singapore); KeXiu Liu, Singapore (Singapore); YiLei Wu, Singapore (Singapore); and ShuYu Cao, Singapore (Singapore) | ||
| Assigned to Seagate Technology LLC, Scotts Valley, Calif. (US) | ||
| Filed on Apr. 17, 2007, as Appl. No. 11/736,179. | ||
| Prior Publication US 2008/0262658 A1, Oct. 23, 2008 | ||
| Int. Cl. G11B 33/14 (2006.01); G11B 33/08 (2006.01); G05B 21/00 (2006.01); G05B 13/00 (2006.01); G05B 15/00 (2006.01); G01M 1/38 (2006.01); G05D 23/00 (2006.01); G05B 11/01 (2006.01); G11B 17/00 (2006.01); G11B 21/16 (2006.01) | ||
| U.S. Cl. 720—651 [700/280; 318/560; 369/247.1] | 12 Claims |
| 1. A method comprising:
obtaining an output shock signal from a shock detection circuit, wherein the output shock signal is indicative of vibration
amplitude;
analyzing the output shock signal by applying a sampling technique to the output shock signal, the sampling technique including
comparing the output shock signal to a predetermined threshold value to obtain a digital output shock signal; and
identifying a vibration frequency of the output shock signal based on the analyzed output shock signal, the identified vibration
frequency configured for use in vibration compensation.
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