Company Filing History:
9 out of 177 
1 out of 3 
1 out of 13 Years Active: 1999-2009
Title: Te-Chih Chang: Innovator in Gyrator Technology and Image Reading Devices
Introduction
Te-Chih Chang is a prominent inventor based in Hsin-Chu, Taiwan. He holds a total of 13 patents that showcase his innovative contributions to technology. His work primarily focuses on advancements in electronic devices, particularly in the fields of gyrator technology and image reading mechanisms.
Latest Patents
One of Te-Chih Chang's latest patents is a gyrator with feedback resistors. This invention includes a gyrator core and at least one common mode feedback circuit. The gyrator core consists of four inverters mutually connected in a loop configuration between a pair of input ends and a pair of output ends. The common mode feedback circuit is designed to enhance performance by providing a forward-reverse connection inverter set and a backward-reverse connection inverter set. Each set includes inverters and feedback resistors that work together to optimize the gyrator's functionality.
Another significant patent is an image reading device activated by light interference. This device operates based on the light interference of a light path and comprises an image sensing element, a picture, and an image changing mechanism. Users can interact with the device by using their fingers or other objects to interfere with the generated image, which triggers a predetermined activation process.
Career Highlights
Te-Chih Chang has worked with notable companies such as Mustek Systems Inc. and Amic Communication Corporation. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Te-Chih Chang has collaborated with several professionals in his field, including Jenn-Tsair Tsai and Hsi-Min Chen. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
Te-Chih Chang's contributions to technology through his patents reflect his innovative spirit and dedication to advancing electronic devices. His work in gyrator technology and image reading devices continues to influence the industry and inspire future innovations.