Location History:
- Grapevine, TX (US) (1983 - 1987)
- Southlake, TX (US) (1992 - 2008)
- Trophy Club, TX (US) (2015)
Company Filing History:
5 out of 127 
2 out of 5,004 
2 out of 24 
Years Active: 1983-2015
Title: The Innovations of Douglas P. Sheppard
Introduction: Douglas P. Sheppard, an accomplished inventor based in Southlake, TX, has made significant contributions to the field of memory technology through his innovative inventions. With a remarkable portfolio of 14 patents, Sheppard has focused on advancing memory cell systems and methods to improve performance and manufacturing efficiency.
Latest Patents: Among Sheppard's latest inventions are two notable patents. The first is a memory cell system and method that incorporates reduced transistor counts and improves design-for-manufacturability (DFM). This invention features cross-coupled feedthru and feedback amplifiers that enhance memory cell state memory. The feedback amplifier's multi-state output drive capability allows for efficient reading and writing while significantly reducing the memory cell input fan-in requirements. The design proposes replacing traditional memory cell structures with configurations that achieve a 16% to 25% reduction in transistor use based on the memory array application context.
The second patent is for a multiport RAM with programmable data port configuration, which allows for independent programming of each data port’s configuration. This innovation simplifies the design process by reducing the combinations necessary for standard cell libraries. The invention includes a dual-port RAM design, featuring decoders and multiplexers that facilitate the selection of input and output mappings based on programmable configuration bits.
Career Highlights: Throughout his career, Douglas P. Sheppard has worked with esteemed organizations, including Mostek Corporation. His dedication to enhancing memory technology has been instrumental in shaping modern RAM designs.
Collaborations: Sheppard has collaborated with notable colleagues such as Scott S. Nance and Nicholas J. Sawyer, working together to drive technological advancements in memory systems.
Conclusion: Douglas P. Sheppard's innovative contributions to the field of memory technology make him a prominent figure in electronics engineering. With his continued focus on improving memory cell systems and configurations, Sheppard is poised to remain at the forefront of technological advancements, influencing future developments in this critical area of research.
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.