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:
Sep. 09, 2008
Filed:
Mar. 10, 2006
Shaoping LI, Naperville, IL (US);
Jin Insik, Eagan, MN (US);
Kaizhong Gao, Eden Prairie, MN (US);
Song Xue, Edina, MN (US);
Mike Montemorra, Longmont, CO (US);
Housan Dakroub, Savage, MN (US);
Jason C. Jury, Minneapolis, MN (US);
Shaoping Li, Naperville, IL (US);
Jin Insik, Eagan, MN (US);
Kaizhong Gao, Eden Prairie, MN (US);
Song Xue, Edina, MN (US);
Mike Montemorra, Longmont, CO (US);
Housan Dakroub, Savage, MN (US);
Jason C. Jury, Minneapolis, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A readback system includes a magnetic sensor that receives a sensor current. The magnetic sensor senses magnetic bits at a bit frequency and generates a sensor output. The readback system includes a channel circuit that modulates the sensor current at a modulation frequency higher than the bit frequency. The channel circuit samples the sensor output and combines multiple samples of the sensor output per magnetic bit into a combined sample output.