Company Filing History:
Years Active: 1976-1981
Title: The Innovations of John E. Altstatt
Introduction
John E. Altstatt is a notable inventor based in Palo Alto, California. He has made significant contributions to the field of electronics, particularly in the development of advanced mixer devices and low noise discriminator circuits. With a total of four patents to his name, Altstatt's work has had a lasting impact on the industry.
Latest Patents
One of his latest patents is the Double-balanced mixer. This device includes a planar substrate selectively plated on both sides to form certain mixer component parts. It features a pair of quarter wavelength narrow strips extending from the component parts, which form one of the balanced lines. These strips have their distal ends shorted together to provide an output terminal at which an IF signal may be taken. The quarter wavelength strips provide a low impedance path for IF signals while effectively blocking RF signals. Another significant patent is the FM discriminator having low noise characteristics. This low noise discriminator circuit is particularly useful for determining the spectral purity characteristics of an RF signal source. It comprises standard discriminator components, a down-locked reference signal source, and a stabilizing voltage-controlled oscillator that responds to the discriminator error signal.
Career Highlights
John E. Altstatt has worked at California Microwave, Inc., where he has been instrumental in developing innovative technologies. His expertise in electronics and signal processing has contributed to the advancement of various projects within the company.
Collaborations
Throughout his career, Altstatt has collaborated with notable colleagues, including Drew R. Lance and John A. Bush. These partnerships have fostered a creative environment that has led to the successful development of several patents.
Conclusion
John E. Altstatt's contributions to the field of electronics through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry and inspire future inventors.