Christopher S Chan

US Patent:

20060238302, Oct 26, 2006

Filed:

Dec 13, 2005

Appl. No.:

11/301396

Inventors:

Sean Loving - Lafayette CO, US
Christopher Chan - Erie CO, US
Rohit Majhi - Boulder CO, US
Tim Enwall - , US

International Classification:

H04Q 5/22

US Classification:

340010100, 340010300, 340010400

Abstract:

Systems and methods for configuring an RFID tag reader based upon one or more aspects of an environment of the RFID tag reader are disclosed. In one embodiment, a tag reader is deployed into an environment that includes readable RFID tags capable of storing dynamic data, and a characteristic of the environment of the tag reader is identified. Based upon the identified characteristic, the configuration of the tag reader is adjusted. In variations, the tag reader is configurable based upon information received from RFID tags. A method for enhancing RFID tag reading performance for example includes sending a first signal to each of a plurality of RFID tags. Information is received from at least one of the plurality of tags, at an RFID tag reader, and a configuration of the tag reader is adjusted based upon at least a portion of the received information.

US Patent:

20060238305, Oct 26, 2006

Filed:

Dec 13, 2005

Appl. No.:

11/301770

Inventors:

Sean Loving - Lafayette CO, US
Christopher Chan - Erie CO, US
Rohit Majhi - Boulder CO, US
Tim Enwall - Boulder CO, US

International Classification:

H04Q 5/22

US Classification:

340010100, 340010300, 340010400

Abstract:

Systems and methods for configuring a RFID tag reader based upon one or more aspects of an environment of the RFID tag reader are disclosed. In one embodiment, a tag reader is deployed into an environment that includes readable RFID tags capable of storing dynamic data, and a characteristic of the environment of the tag reader is identified. Based upon the identified characteristic, the configuration of the tag reader is adjusted. In variations, the tag reader is configurable based upon information received from RFID tags. In another embodiment, a configurable RFID tag reader includes a processing portion that sends a first signal to each of a plurality of RFID tags. The processing portion receives information from at least one of the plurality of RFID tags, and adjusts a configuration of the RFID tag reader based upon at least a portion of the information.

US Patent:

20070182558, Aug 9, 2007

Filed:

Aug 31, 2006

Appl. No.:

11/513667

Inventors:

Sean Loving - Lafayette CO, US
Sayan Chakraborty - Niwot CO, US
Tim Enwall - Boulder CO, US
Christopher Chan - Erie CO, US
Lee Snook - Golden CO, US
Rohit Majhi - Boulder CO, US

International Classification:

G08B 13/14
H04B 1/38

US Classification:

340572400, 455073000

Abstract:

A phase shifting diode detector system for an RFID reader. Quarter-wave delay circuitry is coupled between a forward transmitted signal of the RFID reader applied at a first end of the delay circuitry, and a reflected signal returning from an RFID tag applied at a second end of the delay circuitry. The system includes a pair of diode detector bridges, each comprising a series-coupled diode pair configured such that diode polarities in each bridge are reversed relative to the output thereof, to produce opposite rectified signal output polarities. An input to each of the bridges is capacitively coupled, from the junction between each said diode pair, to a respective opposite end of the delay circuitry.

US Patent:

20070206797, Sep 6, 2007

Filed:

Mar 1, 2006

Appl. No.:

11/307976

Inventors:

Christopher Chan - Erie CO, US
Vikram Shah - Boulder CO, US
Sayan Chakraborty - Niwot CO, US

Assignee:

SKYETEK, INC. - Bolder CO

International Classification:

H04K 1/00

US Classification:

380270000

Abstract:

A Radio Frequency Identification (RFID) security system having a client, that includes a computerized system, at least one RFID tag, and a RFID reader. The computerized system and RFID reader employ a first security protocol and the RFID reader and RFID tags employ a second security protocol for communications. The security protocols permit encryption and/or authentication, and use either the same key exchange algorithms, the same encryption algorithms, and/or related keys to provide seamless communications within the RFID security system.

US Patent:

20160212222, Jul 21, 2016

Filed:

Oct 7, 2014

Appl. No.:

14/423740

Inventors:

Paul J. BULTEMA - Englewood CO, US
John A. GAN - Skillman NJ, US
Stephen M. DADOLY - Princeton NJ, US
William L. GEWIRTZ - Edison NJ, US
Christopher Yen-Chu CHAN - Jersey City NJ, US
John D. BOLZE - Rockville MD, US
Lan GUAN - Johns Creek GA, US
- Upper, Dublin, IE

Assignee:

ACCENTURE GLOBAL SERVICES LIMITED - Dublin

International Classification:

H04L 29/08
H04L 12/24

Abstract:

A service provider network migration system migrate services from a first network infrastructure to a second network infrastructure. A joined circuits dataset is created that associates circuits in the first network infrastructure with a service provided by the circuit and a customer receiving the service via the first network infrastructure. A product mappings dataset is created that maps each service in the first network infrastructure to at least one target service to be provided in the second network infrastructure. A migration sequencing server creates a migration plan according to the information in the datasets, and forecasts for customer migration rate and revenue generation for the target services are estimated. A provisioning server configures parameters for the circuits in the second network infrastructure via a network according to the migration plan to deploy the target services in the second network infrastructure.