Chang Ik Kang

Title: Chang Ik Kang: Innovator in Hard Disk Drive Technology

Introduction

Chang Ik Kang is a notable inventor based in Santa Clara, CA (US). He has made significant contributions to the field of hard disk drive technology. With a total of 2 patents to his name, his work focuses on enhancing the performance and efficiency of hard disk drives.

Latest Patents

One of his latest patents is titled "Method for estimating position error gain for hard disk drives." This invention involves a hard disk drive with a controller that determines a position error signal gain. The gain is calculated from a total servo loop gain and a function defined by the slope of a line of A and B servo bits measured at N off-track positions. This function determines an actual plant gain, providing a more accurate position error signal gain.

Another significant patent is "Method for unloading head without calibration in hard disk drives." This invention features a hard disk drive with a voice coil motor coupled to a head. The disk drive includes a circuit that provides a drive current with a sinusoidal waveform to the voice coil motor during an unload routine. The back emf of the voice coil motor can be determined during a sample period when the current is essentially zero, eliminating the need for resistance calibration and reducing the time required to unload the head.

Career Highlights

Chang Ik Kang is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of hard disk drives. His work has contributed to advancements in data storage technology, making it more efficient and reliable.

Collaborations

He has collaborated with notable coworkers such as Jian Qin Gong and Sang Hoon Chu, further enhancing the innovative environment at Samsung Electronics.

Conclusion

Chang Ik Kang's contributions to hard disk drive technology through his patents demonstrate his commitment to innovation and excellence in engineering. His work continues to impact the industry positively.