Company Filing History:
1 out of 10 
2 out of 832,718 Years Active: 1989-1995
Title: Innovations of James J Croft
Introduction
James J Croft is a notable inventor based in Seattle, WA, with a focus on audio technology. He holds a total of 3 patents that showcase his innovative contributions to the field of sound reproduction. His work emphasizes the enhancement of audio quality and the creation of immersive listening experiences.
Latest Patents
One of Croft's latest patents is for an audio frequency power amplifier. This amplifier features a switching converter with source and sink rectifiers designed to track the audio frequency signal being amplified. The design includes a circuit for discharging output capacitors to prevent floating of the supply voltages, ensuring optimal performance. Another significant patent is for a dipole speaker intended for multichannel sound reproduction systems. This speaker generates sound pressure lobes that are 180 degrees out of phase, creating a null zone to enhance the acoustic ambience. The dipole speaker is strategically positioned to reflect sound off walls, providing listeners with a rich and immersive audio experience.
Career Highlights
Throughout his career, James J Croft has worked with various companies, including Carver, Inc. His experience in the audio industry has allowed him to develop innovative solutions that address common challenges in sound reproduction.
Collaborations
Croft has collaborated with notable individuals such as Robert C Williamson and Robert W Carver. These partnerships have contributed to the advancement of audio technology and the successful development of his patented inventions.
Conclusion
James J Croft's contributions to audio technology through his patents reflect his dedication to enhancing sound reproduction. His innovative designs continue to influence the industry and improve the listening experience for users.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.