Company Filing History:
Years Active: 1994
Title: Charley Heung: Innovator in Digital Cordless Telephone Technology
Introduction
Charley Heung is a notable inventor based in Richmond, CA. He has made significant contributions to the field of telecommunications, particularly in the development of digital cordless telephone technology. With a total of 2 patents, Heung's work has paved the way for advancements in wireless communication.
Latest Patents
Heung's latest patents include a method for continually monitoring the status of a radio frequency link and a digital cordless telephone apparatus. The first patent describes a system where a digital cordless telephone apparatus comprises a microprocessor-based battery-powered portable handset unit and a stationary base unit. These units transmit and receive digital voice data and command data over multiple RF channel frequencies in the 902-928 MHz band. The user's voice is digitized, scrambled, and modulated for transmission. Upon reception, the modulated digital voice data signal is demodulated, descrambled, and decoded. A command data-voice data interface is also included, which inserts command data packets into the stream of digital voice data prior to transmission. This innovative approach ensures that no audible sound is heard by the user during the transmission of command data packets. Additionally, a link check command signal is periodically transmitted by the base unit to evaluate the quality of the RF link, which can trigger an automatic channel change or signal an out-of-range condition.
Career Highlights
Charley Heung is currently associated with Video Technology Engineering, Ltd., where he continues to innovate in the field of telecommunications. His work has been instrumental in enhancing the functionality and reliability of cordless telephone systems.
Collaborations
Heung collaborates with Chris Rose, a talented coworker who contributes to the innovative projects at Video Technology Engineering, Ltd.
Conclusion
Charley Heung's contributions to digital cordless telephone technology demonstrate his commitment to innovation in telecommunications. His patents reflect a deep understanding of wireless communication and its potential to improve user experience.
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