Michael T Pettus

US Patent:

7460014, Dec 2, 2008

Filed:

Jun 21, 2005

Appl. No.:

11/158624

Inventors:

Michael Gregory Pettus - Aptos CA, US

Assignee:

Vubiq Incorporated - Aliso Viejo CA

International Classification:

G08B 13/14

US Classification:

3405721, 3405724, 3405391, 340 101, 34082569, 34082572, 235436, 23546213

Abstract:

A system and method for encoding and decoding information by use of radio frequency antennas. The system includes one or more interrogator devices and RFID data tags. The RFID data tags include a plurality of antenna elements which are formed on a substrate or directly on an object. The antenna elements are oriented and have dimensions to provide polarization and phase information, whereby this information represents the encoded information on the RFID tag. The interrogator device scans an area and uses radar imaging technology to create an image of a scanned area. The device receives re-radiated RF signals from the antenna elements on the data tags, whereby the data tags are preferably represented on the image. The re-radiated RF signals preferably include polarization and phase information of each antenna element, whereby the information is utilized using radar signal imaging algorithms to decode the information on the RF data tag.

US Patent:

7498940, Mar 3, 2009

Filed:

Jun 21, 2005

Appl. No.:

11/158689

Inventors:

Michael Gregory Pettus - Aptos CA, US

Assignee:

Vubiq, Inc. - Aliso Viejo CA

International Classification:

G08B 13/14

US Classification:

3405721, 3405724, 3405391, 340 101, 34082569, 34082572, 235436, 23546213

Abstract:

A system and method for encoding and decoding information by use of radio frequency antennas. The system includes one or more interrogator devices and RFID data tags. The RFID data tags include a plurality of antenna elements which are formed on a substrate or directly on an object. The antenna elements are oriented and have dimensions to provide polarization and phase information, whereby this information represents the encoded information on the RFID tag. The interrogator device scans an area and uses radar imaging technology to create an image of a scanned area. The device receives re-radiated RF signals from the antenna elements on the data tags, whereby the data tags are preferably represented on the image. The re-radiated RF signals preferably include polarization and phase information of each antenna element, whereby the information is utilized using radar signal imaging algorithms to decode the information on the RF data tag.

US Patent:

54062497, Apr 11, 1995

Filed:

Mar 9, 1993

Appl. No.:

8/028487

Inventors:

Michael G. Pettus - Aptos CA

Assignee:

Metricom, Inc. - Los Gatos CA

International Classification:

H04M 1104

US Classification:

34031006

Abstract:

An apparatus and a method for communicating data among transceivers in an electrical utility distribution system where a signal path between the transceivers includes multiple power distribution transformers is described. A first transceiver, common-mode coupled to a secondary of a first power distribution transformer transmits a carrier signal modulated by a data stream to the secondary. The modulated signal is transferred to the primary of the first power distribution transformer which is coupled to the primary of a second power distribution transformer. A second transceiver, common-mode coupled to a secondary of the second power distribution transformer, receives the modulated signal from the secondary. Both transceivers are protected from the high power delivered at the line frequency by filtering capacitors which attenuate signals at the line frequency and pass signals at the carrier signal frequency.