Company Filing History:
1 out of 4,779 
1 out of 139 
1 out of 1,617 
Years Active: 2007-2012
Title: Chi-Hsiang Chang: Innovator in Optical Sensor Technology
Introduction
Chi-Hsiang Chang is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of optical sensor technology, holding a total of 4 patents. His innovative work has paved the way for advancements in compact electronic devices.
Latest Patents
One of Chi-Hsiang Chang's latest patents is an optical sensor package structure and manufacturing method. This invention includes a substrate, a metal plate, an optical sensing chip, a plurality of bonding wires, and a lens module. The substrate features a top surface, a bottom surface, and a hole that penetrates both surfaces. The metal plate covers the hole from the bottom surface of the substrate, while the optical sensing chip is mounted on the metal plate and received in the hole. The bonding wires interconnect the optical sensing chip and the top surface of the substrate. The lens module covers the hole and mounts on the top surface of the substrate, enclosing the optical sensing chip and bonding wires. This design allows for a reduced height of the optical sensor package structure, making it suitable for compact-sized electrical devices.
Another notable patent involves a method and related apparatus for generating fixed packets while writing data to CDs. This invention efficiently records a total-block number of write-in data with a counter and a waiting-coding number with another counter. This process generates fixed packets accurately and prevents buffer underrun when writing data to the CD.
Career Highlights
Chi-Hsiang Chang has worked with notable companies such as MediaTek and Ali Corporation. His experience in these organizations has contributed to his expertise in optical sensor technology and data writing methods.
Collaborations
Throughout his career, Chi-Hsiang Chang has collaborated with talented individuals, including Jenn-Ning Yang and Ya-Fang Nien. These partnerships have fostered innovation and development in his projects.
Conclusion
Chi-Hsiang Chang is a distinguished inventor whose work in optical sensor technology and data writing methods has significantly impacted the industry. His patents reflect his commitment to innovation and the advancement of compact electronic devices.