David A. Shirgley is a notable inventor based in San Jose, California. He has made significant contributions to the field of technology, particularly in the area of memory systems. With a total of 2 patents to his name, Shirgley has demonstrated a commitment to advancing innovation in his field.

Latest Patents

One of Shirgley's latest patents is for an "Authenticated Read-Only Memory." This invention describes an apparatus for controlling access to a program stored in a read-only memory. In one embodiment, the memory includes a random number generator and an encryptor for encrypting random numbers from the generator. A second encryptor, which provides identical encryption to the first, is included within the system and is coupled to receive random numbers from the generator. A comparator compares the results from both encryptors, and if they are identical, it enables the memory. The encryptors are programmable with a 64-bit key, and 32-bit random numbers are used. By making the encryption process relatively slow, many decades are required to break the key.

Another significant patent by Shirgley is for a "Random Number Generator for Use in an Authenticated Read-Only Memory." This invention describes a random number generator where the output of two relatively fast digitally controlled oscillators is exclusively ORed and gated by a counter. The counting rate is determined by a relatively slow digitally controlled oscillator. The ORed output is accumulated in an accumulator, and during the inactive period of the ORed gate, the counter is preset to a value based on the digital value stored in the accumulator. The final value of the accumulator is generated as a random number, which also provides a seed number for varying the frequency of the two fast oscillators.

Career Highlights

David A. Shirgley is currently employed at Intel Corporation, a leading technology company known for its innovations in semiconductor manufacturing and computing technology. His work at Intel has allowed him to contribute to groundbreaking advancements in memory technology.

Collaborations

Shirgley has collaborated with notable coworkers such as Stephen L. Domenik and Alan C. Folmsbee. Their combined expertise has likely fostered an environment of innovation and creativity within their projects.

Conclusion

David A. Shirgley's contributions to technology, particularly in memory systems, highlight his role

Profile summary based on public USPTO records.

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