This inventor holds 1 USPTO granted patent. Top assignee: Siliconsystems, Inc.. Active years: 1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1993
Title: Innovations of Ching-Siang Chen
Ching-Siang Chen is an accomplished inventor based in Irvine, California. He has made significant contributions to the field of telecommunications through his innovative designs and patents. His work primarily focuses on enhancing modem technology, which plays a crucial role in data transmission.
Latest Patents
Ching-Siang Chen holds a patent for a "Mixed analog digital secondary channel FSK modem." This invention describes a secondary channel FSK modem designed for use with primary channel QAM modems. The modem is a fully integrated 75 bps narrowband device that can operate with primary channel QAM modems at data rates of up to 19.2 kbps. The invention utilizes switched capacitor circuits to implement band split filters and FSK transmitters. A micro-digital signal processor is incorporated to enhance the performance, long-term stability, and versatility of the FSK receiver. The modem provides a 40 Hz separation of two carrier frequencies, improving bandwidth efficiency. The operational design includes an FSK modulator combined with a highpass filter and delay equalizer, which separates a section of the main channel bandwidth for the secondary channel. The FSK and QAM signals are summed and sent to a smoothing filter for transmission line output. For receiving, an anti-alias filter recovers the line signal and couples it to a highpass filter and bandpass filter, ensuring effective data recovery.
Career Highlights
Ching-Siang Chen is currently employed at Siliconsystems, Inc., where he continues to innovate and develop advanced technologies in the field of telecommunications. His work has been instrumental in improving modem capabilities and efficiency.
Collaborations
Ching-Siang Chen collaborates with Bert White, a talented woman in the field, contributing to the advancement of their projects and innovations.
Conclusion
Ching-Siang Chen's contributions to modem technology through his patent demonstrate his expertise and commitment to innovation. His work continues to influence the telecommunications industry, paving the way for more efficient data transmission solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile