Eric W Archer

US Patent:

20070109103, May 17, 2007

Filed:

Sep 7, 2006

Appl. No.:

11/516955

Inventors:

Thomas Jedrey - Pasadena CA, US
Eric Archer - Pasadena CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

H04Q 5/22

US Classification:

340010500, 340005200, 340572100, 340005610

Abstract:

The invention provide retailers, distributors, purchasers, end-users and others in a commercial product's distribution chain with systems and methods for product activation at a specific point in the distribution chain (such as at the point of retail sale), for product validation and/or product maintenance (for example when the product is brought in for service or maintenance) and for product authentication (for example upon resale of the product). These capabilities, when added to the basic capability of an RFID-based system to provide an identity and a location for a tag attached to an object, endow commercial products with functionalities such as theft deterrence, product tracking and inventory management, inventory control and perimeter security, product maintenance and recordkeeping of service, and for high-end commercial products, a method of easily identifying a genuine item from a counterfeit.

US Patent:

20140153368, Jun 5, 2014

Filed:

Jun 7, 2013

Appl. No.:

13/913044

Inventors:

Yoseph Bar-Cohen - Seal Beach CA, US
Eric D. Archer - Pasadena CA, US
Xiaoqi Bao - San Gabriel CA, US
Stewart Sherrit - La Crescenta CA, US

Assignee:

CALIFORNIA INSTITUTE OF TECHNOLOGY - Pasadena CA

International Classification:

G10K 11/18
E21B 47/14

US Classification:

367 81, 367137

Abstract:

A plurality of phased array acoustic communication devices are used to communicate data along a tubulation, such as a well. The phased array acoustic communication devices employ phased arrays of acoustic transducers, such as piezoelectric transducers, to direct acoustic energy in desired directions along the tubulation. The system is controlled by a computer-based controller. Information, including data and commands, is communicated using digital signaling.