Abstract: The present invention relates to a system method of provisioning mobile device security settings to provide authorized users with secure access. The system and method uses a generated, computer-readable authentication code that is read by a mobile device. The authentication code enables an unprovisional mobile device to request security credentials to enable a user of the mobile device to connect to a secured system.

Abstract: The present invention provides for electronic braking of DC brushless motors by developing a feedback signal based on the back EMF of the motor. This feedback signal is used to provide a signal to the motor permitting current flow from the motor into the controller of a controlled level to slow the motor down. Reliance on the back EMF of the motor eliminates the need for a commutation signal when an emergency stop is required.

Abstract: A proximity sensor controller mechanism for use with a nail gun or the like having a firing end. The proximity sensor controller mechanism includes an electrically-energizable proximity sensor circuit having a proximity sensor positionable near a firing end of a staple gun or a nail gun and with the energized proximity sensor transmitting a proximity signal when a recipient external object is placed in juxtaposition with a firing end of a nail gun or a staple gun. The proximity sensor circuit further has an indicator lamp coupled to the proximity sensor and with the indicator lamp being illuminated upon receipt of the proximity signal from the proximity sensor; a power source for supplying electrical energy to the proximity sensor circuit for operation; and a coupling mechanism for coupling the proximity sensor circuit to a nail gun or the like.

Abstract: In a highway survey vehicle, grade and cross fall measurements are made in relation to references established by a displacement type pitch and roll gyroscope with a gravity referenced erection system. Lateral acceleration of the vehicle is calculated independently and used to provide a correction for errors caused by spurious erection induced by such lateral acceleration, provided that such acceleration falls within certain limits such as to permit effective correction. The lateral acceleration may be calculated from measured rates of displacement and change of the direction of the vehicle.