Westman, Champlin & Kelly, P.A.
Readback system providing a combined sample output including multiple samples per bit
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.
Seagate Technology LLC
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Shaoping Jin Mike Kaizhong Housan Jason C. Song
Li Insik Montemorra Gao Dakroub Jury Xue