Yong-Long Lee

Title: Yong-Long Lee: Innovator in Optical Information Technology

Introduction

Yong-Long Lee is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of optical information technology, holding a total of 2 patents. His work focuses on enhancing the performance and reliability of optical information recording systems.

Latest Patents

One of Yong-Long Lee's latest patents is an "Automatic detecting device for land pre-pits signals." This innovative device adjusts the gain of push-pull signals to improve the signal-to-noise ratio of land pre-pits signals compared to wobble signals. It employs digital logic computation to accurately identify the practical position of land pre-pits. The device overcomes the limitations of traditional fixed land pre-pits slice level technology, which often struggles to obtain accurate signals from written disks.

Another notable patent is for an "Automatic calibration of the output power of a pickup head for an optical information recording apparatus." This method addresses the thermal effects of laser diodes by utilizing duty cycle control. It establishes a correct conversion function between the output current of a front monitor diode and the output power of the pickup head through curve fitting. This approach simplifies the calibration process, requiring only one measurement set for optimal recording characteristics.

Career Highlights

Yong-Long Lee is affiliated with the Industrial Technology Research Institute, where he continues to advance research in optical technologies. His work has significantly impacted the efficiency and accuracy of optical information recording systems.

Collaborations

He has collaborated with notable colleagues, including Feng-Hsiang Lo and Kuo-Ding Shin, contributing to various projects that enhance the field of optical information technology.

Conclusion

Yong-Long Lee's innovative patents and contributions to optical information technology demonstrate his commitment to advancing this critical field. His work continues to influence the development of more efficient and reliable optical recording systems.