This inventor holds 2 USPTO granted patents. Top assignee: Other. Active years: 1980-2000.
Location History:
- Los Altos, CA (US) (1980)
- Sunnyvale, CA (US) (2000)
Company Filing History:
2 out of 834,411 Years Active: 1980-2000
Title: Innovations of Charles S. Robertson
Introduction
Charles S. Robertson is a notable inventor based in Sunnyvale, CA (US). He has made significant contributions to the field of RF power amplification and financial calculators. With a total of 2 patents, his work showcases a blend of technical expertise and innovative thinking.
Latest Patents
One of Robertson's latest patents is focused on RF power amplifier linearization using parallel RF power amplifiers. This invention features a unique architecture that includes a pair of matched RF amplifiers. The RF signal paths are intercoupled with a phase and amplitude measurement and predistortion mechanism. By selectively combining the RF output of a main path RF power amplifier with the RF input signal supplied to a parallel path RF power amplifier, the predistortion control mechanism ensures that the RF input signal applied to the parallel path amplifier includes the same modulated RF carrier component as that applied to the main path amplifier. This innovative approach allows for the cancellation of unwanted intermodulation distortion (IMD) components, resulting in a cleaner and more efficient RF output signal.
Another significant patent by Robertson is an apparatus for maximizing interest earnings and providing payments from principal amounts. This calculator apparatus computes minimum principal amounts for deposits into demand and term accounts that pay interest at differing rates. The design includes a keyboard, a read-write memory, a logic unit, a printer, and a display unit. The logic unit features an arithmetic unit with multiple data storage registers and a read-only memory containing a stored program. This invention allows users to maximize their interest earnings while avoiding penalties associated with early withdrawals.
Career Highlights
Throughout his career, Charles S. Robertson has demonstrated a commitment to innovation and problem-solving. His patents reflect a deep understanding of both electrical engineering and financial systems. His work has had a lasting impact on the fields he has contributed to.
Collaborations
Robertson has collaborated with notable individuals such as Robert H. Youden and Lance Todd Mucenieks. These partnerships have likely enriched his work and contributed to the success of his inventions.
Conclusion
Charles S. Robertson is a distinguished inventor whose contributions to RF power amplification and financial calculators have made a significant impact. His innovative patents reflect his expertise and dedication to advancing technology.