Hewlett-Packard Development Company, L.p.

John L McWilliams

Jefferson Patrick Ward

Stephen D Panshin

Francisco Alcazar

An example system includes a secure processing engine. The secure processing engine is to store a host key. The system also includes an integrated circuit in a single package. The integrated circuit includes a firmware engine to execute firmware instructions. The integrated circuit also includes a one-time-programmable (OTP) memory unreadable by the firmware engine. The OTP memory is to store the host key. The integrated circuit also includes a security engine. The security engine is to encrypt and decrypt communications between the firmware engine and the secure processing engine based on the host key.

Firmware-inaccessible key storage

An integrated circuit device that utilizes multiple OTP bits to enable and re-enable access to evaluation and testing components comprises a set of multiple one-time programmable (OTP) bits, a programming module operable to trigger a change in each bit of the set of multiple OTP bits, decode logic to determine a value for a collective state of the set of multiple OTP bits, and a control element to control access to at least one resource of the integrated circuit device based on a value of the collective state for the set of multiple OTP bits.

Integrated circuit device using multiple one-time programmable bits to control access to a resource

Non-iterative introduction of phase delay into a signal, without feedback, is disclosed. A system of one embodiment of the invention includes a controller and a mechanism. The controller provides a pulse having a length representative of a phase delay for introduction into a signal. The mechanism non-iteratively introduces the phase delay into the signal based on the pulse, without feedback.

Non-iterative introduction of phase delay into signal without feedback

Non-iterative signal synchronization is disclosed. A system of one embodiment of the invention has a provider and a mechanism. The provider provides two signals. The mechanism non-iteratively synchronizes one of the signals with the other of the signals, based on a pulse indicative of a phase difference between the signals.

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Vancouver, WA, United States of America

John L McWilliams