Michael David Ferguson

US Patent:

8107692, Jan 31, 2012

Filed:

Jun 28, 2011

Appl. No.:

13/171377

Inventors:

Michael Ian Ferguson - Glendale CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

G06K 9/00

US Classification:

382124

Abstract:

A circuit having a fingerprint for identification of a particular instantiation of the circuit is disclosed. The circuit may include a plurality of digital circuits or gates. Each of the digital circuits or gates is responsive to a configuration voltage applied to its analog input for controlling whether or not the digital circuit or gate performs its intended digital function and each of the digital circuits or gates transitioning between its functional state and its at least one other state when the configuration voltage equals a boundary voltage. The boundary voltage varies between different instantiations of the circuit for a majority of the digital circuits or gates and these differing boundary voltages serving to identify (or fingerprint) different instantiations of the same circuit.

US Patent:

7996737, Aug 9, 2011

Filed:

Sep 11, 2007

Appl. No.:

10/584592

Inventors:

Michael Ian Ferguson - Glendale CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

G01R 31/28

US Classification:

714725

Abstract:

A circuit having a fingerprint for identification of a particular instantiation of the circuit is disclosed. The circuit may include a plurality of digital circuits or gates. Each of the digital circuits or gates is responsive to a configuration voltage applied to its analog input for controlling whether or not the digital circuit or gate performs its intended digital function and each of the digital circuits or gates transitioning between its functional state and its at least one other state when the configuration voltage equals a boundary voltage. The boundary voltage varies between different instantiations of the circuit for a majority of the digital circuits or gates and these differing boundary voltages serving to identify (or fingerprint) different instantiations of the same circuit.

US Patent:

20050091218, Apr 28, 2005

Filed:

May 9, 2004

Appl. No.:

10/709486

Inventors:

David Janes - Roswell GA, US
Rodney Oberg - Marietta GA, US
Michael Ferguson - Acworth GA, US

Assignee:

OFFICE at Hand, Inc - Atlanta GA

International Classification:

G06F007/00

US Classification:

707010000

Abstract:

A system and process for capturing all regionally supported data regarding a real estate property for sale, and a system and process for loading that captured data to a regional multiple listing database system, using a portable computing device is detailed. A general purpose portable computing device (such as the Palm OS personal data assistant PCD, or the handheld Microsoft Pocket PC, HPC) is capable of running custom software applications for the collection and display of information and can be configured to store collected information in persistent storage, for later retrieval and manipulation, on the portable computing device. A regional multiple listing service maintains a database and search engine of all properties listed for sale in a specific geographic region, and which are listed for sale with a licensed real estate agent. This system provides a software application on the portable computing device which allows the real estate agent to collect all the necessary data, while in the field, to create a listing entry in the multiple listing database. The system is configured such that the field collected data can be automatically published to the multiple listing database at the next opportunity the real estate agent has to synchronize the portable computing device with an Internet connected computer. The system is also configured to correct common data collection mistakes made by a plurality of real estate agents, and also correct common mistakes made while transcribing the data into the multiple listing database.