Securealert, Inc.

Novatel Communications Ltd.

4Iiii Innovations Inc.

Remotemdx

David McNab

David J Kalhok

Bruce G Derrick

Jean-Sebastien Langlois

Gerard E Robidoux

B Kent Davidson

Patrick Y D Boutet

Scott S Walker

Stephen N D Larson

Kipling William Fyfe

Keith Joseph Wakeham

Billy Cheuk Wai Chan

Hamid Ebrahimi Kahaki

Brandon Riches

Barrie Cassidy

James Rooney

A crank measurement system includes four bend-sensing strain gauges located on one surface of a crank and oriented parallel to a neutral axis of the crank to sense bend strain induced in the crank. Two of the bend-sensing strain gauges are located above the neutral axis, and the other two bend-sensing strain gauges are located below the neutral axis. The system also includes two shear-sensing strain gauges located on the one surface and oriented to sense shear strain induced in the crank. The shear-sensing strain gauges are located on opposite sides of the neutral axis. The system may also include up to four axial-sensing strain gauges located on the one surface and oriented to sense axial strain induced in the crank. An electronics module receives strain data from the strain gauges, and determines from the strain data one or more of force, torque, and power applied to the crank.

Crank measurement system with improved strain gauge installation

A remote tracking and communication device comprising a housing which encloses a processor, a memory, a position locator, a first transmitter, and a second transmitter. Each of the latter components are electronically coupled to the processor. Both the first and second transmitters are adapted to send and receive wireless voice and data signals in a digital format. The device further comprises a first battery, which is removably affixed to the housing and electronically coupled to each component within the housing, a speaker and a microphone electronically coupled to the first transmitter, and a button electronically coupled to the processor. When pressed, the button is adapted to activate voice communications with a call center using the first transmitter.

Remote tracking and communication device

A mobile telephone incorporating the invention includes in its transmitter circuitry a system for preventing unauthorized calls from being transmitted by the telephone. The system ensures that the telephone transmit only service and call requests that include the electronic serial number ('ESN') which is permanently stored in the telephone by the manufacturer, in an unalterable ESN memory. The system in one embodiment includes ESN detection circuitry which determines the bit position of an ESN in a service or call request and either compares the ESN in the request with the ESN stored in the ESN memory and transmit only requests that contain matching ESNs, or substitutes the ESN from the ESN memory directly into the requests as they are being transmitted. In an alternative embodiment, the system formats the requests using the ESN from the ESN memory and message information supplied to it by the user. The system, which is otherwise inaccessible to user-supplied information, then transmits the formatted requests.

System for securing mobile telephones from unauthorized transmission

Growing community of inventors

Calgary, Canada

David McNab