This inventor holds 18 USPTO granted patents and 2 published patent applications. Top assignees: Sunplus Technology Co., Ltd., Industrial Technology Research Institute, Elite Semiconductor Microelectronics Technology Inc.. Active years: 1989-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Portz, TW (1993)
- Chia-I, TW (1999)
- Hsinchu, TW (1989 - 2007)
Company Filing History:
8 out of 360 
7 out of 9,307 
2 out of 66 Years Active: 1989-2025
Title: Dar-Chang Juang: Innovator in Photoelectric Sensing Technology
Introduction
Dar-Chang Juang is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of photoelectric sensing technology, holding a total of 18 patents. His innovative work has paved the way for advancements in various applications.
Latest Patents
Among his latest patents is the "Active Clamp Photoelectric Sensing Device." This device features an input terminal, a first output terminal, a current-to-voltage conversion circuit, and an active clamp circuit. The input terminal receives an input current, while the first output terminal outputs a first output voltage. The current-to-voltage conversion circuit is designed to discharge and lower the potentials of the input terminal and the first output terminal to a first set voltage based on the state of a reset signal. Additionally, it can gradually increase the first output voltage to a second set voltage. The active clamping circuit is integrated with the current-to-voltage conversion circuit to clamp the upper limit of the first output voltage to the second set voltage.
Another notable patent is the "Photoelectric Sensing Device for Cancelling Crosstalk." This device includes a first capacitor and a first switch that connects a current source to the first capacitor. The first switch is activated by a driving signal, allowing the current source to charge the first capacitor and generate a first capacitor voltage. A second switch, connected between the first capacitor and an input terminal, is turned on by a cancellation signal. The current-voltage conversion circuit receives an input current corresponding to a crosstalk signal and generates a crosstalk voltage. When the second switch is activated, the crosstalk voltage is subtracted from the first capacitor voltage, effectively cancelling the crosstalk signal and outputting a correct sensing voltage.
Career Highlights
Dar-Chang Juang has worked with notable companies such as Sunplus Technology Co., Ltd. and the Industrial Technology Research Institute. His experience in these organizations has contributed to his expertise in the field of photoelectric sensing technology.
Collaborations
Some of his notable coworkers include Chungpin Liao and Pei-Hui Tung. Their collaboration has likely fostered an environment of innovation and creativity in their projects.
Conclusion
Dar-Chang Juang's contributions to photoelectric sensing technology through his
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile