Company Filing History:
Years Active: 2003-2014
Title: Chang-Hyeon Lee: Innovator in XTAL Oscillator Technology
Introduction
Chang-Hyeon Lee is a prominent inventor based in Irvine, CA, known for his significant contributions to the field of electronics. He holds a total of 8 patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on enhancing the performance and reliability of oscillator systems.
Latest Patents
One of his latest patents is the XTAL oscillator, which incorporates resistor bias circuitry to reduce 1/f noise. This invention features a resistor bias circuit attached to the XTAL core, along with a common mode feedback operational amplifier (OP amp) that also includes a resistor bias circuit. The XTAL oscillator chain consists of an XTAL core, common mode feedback OP amp, common mode logic buffer (CML BF), and differential to CMOS converter (D2C), each equipped with resistor bias circuitry. Another notable patent is the low drop-out voltage regulator circuit assembly. This integrated circuit assembly includes a voltage level generator, a level shifter, a bandgap reference generator, and a voltage regulator. The voltage level generator produces output voltage level signals in response to a supply voltage, while the level shifter generates control signals. The bandgap reference generator creates a bandgap reference signal, and the voltage regulator ensures a constant output voltage under varying circuit conditions.
Career Highlights
Chang-Hyeon Lee has worked with several reputable companies, including Skyworks Solutions, Inc. and Broadcom Corporation. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technology in the electronics industry.
Collaborations
Some of his notable coworkers include Akbar Ali and Joshua Haeseok Cho, who have collaborated with him on various projects throughout his career.
Conclusion
Chang-Hyeon Lee's innovative work in oscillator technology and voltage regulation has made a significant impact in the field of electronics. His patents reflect his dedication to advancing technology and improving electronic systems.
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