Culvert-Iot Corporation

Alien Technology Corporation

X Development LLC

Mie Fujitsu Semiconductor Limited

Other

Suvolta, Inc.

Ruizhang Technology Limited Company

Chorusview, Inc.

Edward John Boling

Dean Mamoru Kawaguchi

Edward Maurice Farrell

Prasad Panchalan

Alberto Vidal

John Stephen Smith

Amit Lal

Mark Alfred Hadley

Sang-Soo Lee

Justin C Kuo

Augustine Kuo

Jay Tu

James Harold Atherton

Jeffrey Jay Jacobsen

David Anthony Kidd

Samuel Leshner

Vineet Agrawal

Chao-Wu Chen

Roger Green Stewart

Peter R Bossard

Robert Rogenmoser

Ronald S Nowicki

An intelligent tracking system generally includes one or more tracking devices, some of which may be passive tracking devices. Each passive tracking device includes one or more transceivers and is energized by an energizing signal. Some of these passive tracking devices may operate in a first communication mode or a second communication mode based on the energizing signal. Some tracking devices may include encryption modules or authentication modules. Some of these devices may incorporate a bulk acoustic wave oscillator.

Intelligent tracking system and methods and systems therefor

According to some embodiments of the present disclosure, an intelligent tracking system is disclosed. The intelligent tracking system includes one or more passive tracking devices, an exciter, and a tracker. Each passive tracking device includes one or more transceivers and is energized by an electromagnetic frequency. In response to being energized each passive tracking device transmits a short message. The exciter emits the electromagnetic frequency. The tracker receives short messages from the one or more passive tracking devices and confirms the presence of the one or more passive tracking devices in a vicinity of the tracker based on the received messages.

Methods and apparatuses for selecting a subset of RFID tags are provided in some embodiments. These methods and apparatuses utilize the susceptibility to light by persistent nodes found in passive tags. Light can be used to intentionally reduce persistence times in a particular subset tags or even an individual tag. Then, persistent nodes can be used as a selection criterion to distinguish previously illuminated tags from non-illuminated tags. In other embodiments, a power circuit receives a RF input source and generates a direct current (DC) output voltage. The circuit includes a bias circuit to supply a gate to source bias, which is independent of the DC output voltage. The circuit further includes a voltage multiplier circuit that is coupled to the bias circuit. The voltage multiplier circuit has MOS transistors with one transistor to receive the gate to source bias.

Subset selection of RFID tags using light

Growing community of inventors

Fremont, CA, United States of America

Edward John Boling