Company Filing History:
1 out of 22 
1 out of 38 Years Active: 1998-1999
Title: Eng Han Lee: Innovator in Digital Circuitry
Introduction
Eng Han Lee is a notable inventor based in Singapore, known for his contributions to digital circuitry. With a total of 2 patents, he has made significant advancements in the field of electronics, particularly in clock frequency multiplication and computation circuits.
Latest Patents
One of his latest patents is the "Digital Clock Frequency Multiplier." This invention describes a circuit and method for creating a double clock frequency. The circuit utilizes a sequence of delay elements to delay the primary clock. A delay detector determines when a delayed clock is out of phase with the primary clock. A delay is selected that is one half the delay producing the out of phase delayed clock. The selected delay is used to combine with the primary clock to produce a double clock frequency. Control signals for selecting the 'half' delayed clock are latched to prevent clock jitter and spurious signals from producing error signals in the double frequency clock. Different duty cycles can be established by varying the selected delay.
Another significant patent is the "Multiply Accumulate Computation Unit." This circuit performs the multiplication of a first binary number that is a multiplicand and a second binary number that is a multiplier to produce a product. The product can be added or subtracted from a previous result, negated, or multiplied by a factor of two. The multiplication is accomplished in a modified Radix 4 Booth's encoding and translation circuit to produce a set of partial products that are combined in an n operand adder to form a final result.
Career Highlights
Eng Han Lee has worked with Tritech Microelectronics International Ltd. and Tritech Microelectronics, Ltd., where he has applied his expertise in digital circuitry. His work has contributed to the development of innovative electronic solutions that enhance performance and efficiency.
Collaborations
Throughout his career, Eng Han Lee has collaborated with notable colleagues, including Kheng Boon Peh and Yung Yum Ang. These collaborations have fostered an environment of innovation and creativity in the field of electronics.
Conclusion
Eng Han Lee's contributions to digital circuitry through his patents and career highlights demonstrate his commitment to innovation in technology. His work continues to influence the field and inspire future advancements.