Location History:
- Sunnyvale, CA (US) (1982 - 1984)
- Morgan Hill, CA (US) (1995 - 2007)
Company Filing History:
11 out of 135 
4 out of 519 
2 out of 832,680 Years Active: 1982-2007
Title: **James R Holzgrafe: Innovator in Television Signal Technology**
Introduction
James R Holzgrafe is a prolific inventor based in Morgan Hill, California. With an impressive portfolio of 17 patents, he has made significant contributions to the field of television signal technologies. His inventions focus on enhancing the security and efficiency of high-definition broadcasts, addressing the challenges of unauthorized recording.
Latest Patents
One of Holzgrafe's latest patents is titled "Method and apparatus for scrambling a high definition television signal to discourage unauthorized recording of same." This innovative method scrambles a high-definition television signal, creating an induced 'wobble' between the active video and its associated sync pulses, rendering any unauthorized recordings unusable. The invention allows the scrambled signal to be viewed on compliant high-definition television sets, which utilize an encoded indicator to descramble the signal appropriately. Moreover, Holzgrafe's design includes a special interface to prevent unauthorized access to the descrambling information. He also patented a method and apparatus for carrying data in a video signal, ensuring that encoded data, like descrambling keys, remains undetectable by conventional video recorders.
Career Highlights
James R Holzgrafe has held notable positions at renowned companies such as Macrovision Corporation and Ampex Corporation. His work at these organizations has significantly influenced the development of technologies aimed at enhancing video broadcasting and protecting against unauthorized access and recording.
Collaborations
Throughout his career, Holzgrafe collaborated with talented individuals including John O Ryan and Mark A Hollar. These collaborations have likely contributed to the innovative breakthroughs in signal processing and data protection that Holzgrafe is known for.
Conclusion
James R Holzgrafe stands out as a leading inventor in the realm of television technology, bringing forward crucial advancements that shape the future of high-definition broadcasting. With his 17 patents, he has paved the way for more secure and efficient television signal transmission, reflecting a commitment to innovation and enhancement in media 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.