Location History:
- Menlo Park, CA (US) (1989 - 1990)
- Sausalito, CA (US) (1991)
- San Francisco, CA (US) (1994 - 2021)
Company Filing History:
Years Active: 1989-2021
Title: Douglas E. Mandell: Innovator in Audio Technology
Introduction
Douglas E. Mandell is a renowned inventor based in San Francisco, California, with an impressive portfolio of 14 patents. His work primarily focuses on advancements in audio technology and digital cinema playback systems, reflecting his deep understanding and innovative approach to sound engineering.
Latest Patents
Among Douglas E. Mandell's recent innovations is a patent for "Variable-frequency sliding band equalization for controlling sealed loudspeaker excursion." This technology introduces methods and systems for generating a speaker feed designed to enhance sealed speaker performance. The innovation includes feedback mechanisms that optimize the speaker feed for a desired frequency response above the resonance frequency while maintaining a flat frequency response in a variable sub-resonance equalization band. The feedback-controlled filter boosts the input signal at specific frequencies, compensating for natural falloff in the speaker's spring-loaded region.
Another significant invention is related to "Frame synchronization in an ethernet NTP time-keeping digital cinema playback system." This patent addresses the synchronization challenges within networks of NTP-timekeeping devices, ensuring that the scheduling of future instructions accounts for both nominal and actual frame rates, as well as network latency. This innovation is crucial for maintaining high-quality video playback in digital cinema environments.
Career Highlights
Douglas E. Mandell is affiliated with Dolby Laboratories Licensing Corporation, a company recognized for its pioneering contributions to audio technology. His work at Dolby emphasizes his role in shaping the future of sound engineering, particularly in creating technologies that enhance user experience in audio and visual media.
Collaborations
Throughout his career, Mandell has collaborated with esteemed colleagues, including Martin John Richards and Mark Leighton Atherton. These partnerships reflect a robust working relationship that likely contributes to the innovative solutions developed within Dolby Laboratories.
Conclusion
Douglas E. Mandell's contributions to audio technology and digital cinema are significant, as evidenced by his numerous patents and collaborations. His ongoing work continues to influence the industry, pushing the boundaries of what is possible in sound reproduction and digital media playback. With a commitment to innovation, Mandell remains a prominent figure in the world of audio technology.
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.