Geon-ho Cho

Title: Innovations by Geon-ho Cho in Optical Disc Drive Technology

Introduction

Geon-ho Cho is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of optical disc drive technology. His innovative approach has led to the development of a method and device that enhances the performance of optical disc drives.

Latest Patents

Geon-ho Cho holds a patent for a "Method and device for correcting track deviation in optical disc drive." This invention discloses a method and device that corrects track deviation by detecting the deviation of a disc through a fine seek operation. The tracking actuator operates during the coarse seek stage of an optical disc drive. A track cross signal of the disc is detected in the optical pick-up during the coarse seek operation. Simultaneously, an optical encoder and a linear scale are used to detect a scale cross signal. The actuator is driven by a signal resulting from comparing both signals. This innovation corrects the track deviation of the disk during the travel of the optical pick-up. Consequently, the relative speed between the light spot and the track in the seek direction is minimized, facilitating actuator control without the need to lower the speed of the VCM used in the coarse seek. This results in a shortened seek time, bringing the position control time between the coarse seek and fine seek close to zero. Geon-ho Cho has 1 patent to his name.

Career Highlights

Geon-ho Cho is currently employed at Samsung Electronics Co., Ltd., a leading company in the technology sector. His work at Samsung has allowed him to focus on advancements in optical disc drive technology. His contributions have been instrumental in improving the efficiency and performance of optical devices.

Collaborations

Geon-ho Cho has collaborated with talented coworkers, including Cheol-woo Lee and Su-han Park. Their teamwork has fostered an environment of innovation and creativity, leading to significant advancements in their field.

Conclusion

Geon-ho Cho's innovative work in optical disc drive technology exemplifies the impact of dedicated inventors in the tech industry. His patent for correcting track deviation showcases his commitment to enhancing device performance. Through his career at Samsung Electronics, he continues to contribute to technological advancements that benefit consumers worldwide.