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Hoff, NC
David Paul Hoff, Raleigh, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20090040801 | Content Addressable Memory - A content addressable memory (CAM) is disclosed. The CAM has first and second CAM cells in which each adjacent CAM cell is rotated 180° relative to its neighbor, which provides a compact physical arrangement having overall matched CAM array cell and RAM array cell row heights. Further, an interleaved set scheme can be applied to the CAM cells to provide reduced routing of compare signals and reduced parasitic capacitance. | 02-12-2009 |
David Paul Hoff, Cary, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20120112813 | Latch Circuits with Synchronous Data Loading and Self-Timed Asynchronous Data Capture - A latch integrated circuit has synchronous data loading and self-timed asynchronous data capture characteristics. The integrated circuit may include a latch, a pulse generator and a comparator. The latch can be responsive to a data signal and a write enable signal. The pulse generator may be configured to generate the write enable signal as a pulse. This pulse may have a leading edge synchronized with a first edge of a clock signal and a self-timed trailing edge synchronized with an edge of a comparison signal. The comparator may be configured to generate the comparison signal in response to comparing logic levels of at least two nodes within the integrated circuit. | 05-10-2012 |
James P. Hoff, Raleigh, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20100057440 | MULTI-LANGUAGE SUPPORT IN PREBOOT ENVIRONMENT - Systems and methods for providing multi-language support in a pre-boot environment are supplied. User interface type information, such as keyboard type information and translation tables, are ascertained and provided to the pre-boot environment of the apparatus, allowing the apparatus to properly receive and/or translate multi-language inputs in an appropriate fashion. | 03-04-2010 |
| 20100162373 | MANAGEMENT OF HARDWARE PASSWORDS - In the context of computer systems, the generation of preboot passwords at a server instead of at a client. Preferably, preboot passwords generated at the server are distributed to the client, and a process is offered whereby a user can establish his/her own proxy, not known to the server, that can be used to release the stored passwords to the client hardware. Since the passwords are generated at the server, management of the passwords is greatly facilitated since they are generated at the site where they are stored. This also makes it easy to implement management features such as a group policy, since the password generation software will be able to make logical connections between users and hardware. | 06-24-2010 |
James Patrick Hoff, Raleigh, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20090006843 | METHOD AND SYSTEM FOR PROVIDING A TRUSTED PLATFORM MODULE IN A HYPERVISOR ENVIRONMENT - A method is presented for implementing a trusted computing environment within a data processing system. A hypervisor is initialized within the data processing system, and the hypervisor supervises a plurality of logical, partitionable, runtime environments within the data processing system. The hypervisor reserves a logical partition for a hypervisor-based trusted platform module (TPM) and presents the hypervisor-based trusted platform module to other logical partitions as a virtual device via a device interface. Each time that the hypervisor creates a logical partition within the data processing system, the hypervisor also instantiates a logical TPM within the reserved partition such that the logical TPM is anchored to the hypervisor-based TPM. The hypervisor manages multiple logical TPM's within the reserved partition such that each logical TPM is uniquely associated with a logical partition. | 01-01-2009 |
| 20090049305 | METHOD AND SYSTEM FOR HIERARCHICAL PLATFORM BOOT MEASUREMENTS IN A TRUSTED COMPUTING ENVIRONMENT - An architecture for a distributed data processing system comprises a system-level service processor along with one or more node-level service processors; each are uniquely associated with a node, and each is extended to comprise any components that are necessary for operating the nodes as trusted platforms, such as a TPM and a CRTM in accordance with the security model of the Trusted Computing Group. These node-level service processors then inter-operate with the system-level service processor, which also contains any components that are necessary for operating the system as a whole as a trusted platform. A TPM within the system-level service processor aggregates integrity metrics that are gathered by the node-level service processors, thereafter reporting integrity metrics as requested, e.g., to a hypervisor, thereby allowing a large distributed data processing system to be validated as a trusted computing environment while allowing its highly parallelized initialization process to proceed. | 02-19-2009 |
| 20090063857 | METHOD AND SYSTEM FOR PROVIDING A TRUSTED PLATFORM MODULE IN A HYPERVISOR ENVIRONMENT - A method is presented for implementing a trusted computing environment within a data processing system. A hypervisor is initialized within the data processing system, and the hypervisor supervises a plurality of logical, partitionable, runtime environments within the data processing system. The hypervisor reserves a logical partition for a hypervisor-based trusted platform module (TPM) and presents the hypervisor-based trusted platform module to other logical partitions as a virtual device via a device interface. Each time that the hypervisor creates a logical partition within the data processing system, the hypervisor also instantiates a logical TPM within the reserved partition such that the logical TPM is anchored to the hypervisor-based TPM. The hypervisor manages multiple logical TPM's within the reserved partition such that each logical TPM is uniquely associated with a logical partition. | 03-05-2009 |
| 20100217968 | Apparatus, System, and Method for Accurate Automated Scheduling of Computer Suspend and Resume - An apparatus, system, and method are disclosed for suspend-resume scheduling in conjunction with an operation requiring a suspend-resume cycle of a computer | 08-26-2010 |
James Patrick Hoff, Ralelgh, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20090083539 | Method for Securely Creating an Endorsement Certificate in an Insecure Environment - A method and system for ensuring security-compliant creation and signing of endorsement keys of manufactured TPMs. The endorsement keys are generated for the TPM. The TPM vendor selects an N-byte secret and stores the N-byte secret in the TPM along with the endorsement keys. The secret number cannot be read outside of the TPM. The secret number is also provided to the OEM's credential server. During the endorsement key (EK) credential process, the TPM generates an endorsement key, which comprises both the public key and a hash of the secret and the public key. The credential server matches the hash within the endorsement key with a second hash of the received public key (from the endorsement key) and the vendor provided secret. The EK certificate is generated and inserted into the TPM only when a match is confirmed. | 03-26-2009 |