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312results about How to "Simple form" patented technology

Method of forming finned semiconductor devices with trench isolation

A method of manufacturing a semiconductor device structure, such as a FinFET device structure, is provided. The method begins by providing a substrate comprising a bulk semiconductor material, a first conductive fin structure formed from the bulk semiconductor material, and a second conductive fin structure formed from the bulk semiconductor material. The first conductive fin structure and the second conductive fin structure are separated by a gap. Next, spacers are formed in the gap and adjacent to the first conductive fin structure and the second conductive fin structure. Thereafter, an etching step etches the bulk semiconductor material, using the spacers as an etch mask, to form an isolation trench in the bulk semiconductor material. A dielectric material is formed in the isolation trench, over the spacers, over the first conductive fin structure, and over the second conductive fin structure. Thereafter, at least a portion of the dielectric material and at least a portion of the spacers are etched away to expose an upper section of the first conductive fin structure and an upper section of the second conductive fin structure, while preserving the dielectric material in the isolation trench. Following these steps, the fabrication of the devices is completed in a conventional manner.
Owner:INNOVATIVE FOUNDRY TECH LLC

Authenticating a user of a communication device to a wireless network to which the user is not associated with

The present invention provides a method and an apparatus for automating authentication of a user. In one embodiment, a method calls for detecting an authentication event at a wireless communication device to gain access to a first wireless network through an access point associated with the first wireless network, automatically obtaining a credential from a second wireless network in response to the authentication event, and authenticating the user based on the credential to establish a connection between the wireless communication device and the first wireless network. A client-server based communication system includes a client module at a wireless communication device for user authentication of a Wi-Fi device to a Wi-Fi network through an access point associated therewith. For the purposes of authentication, the client-server based communication system further includes a server module with which the client module may automatically exchange signaling messages, such as short message service messages over a wide area network. Such a Wi-Fi user authentication process may, for example, substantially simplify access at a Wi-Fi hotspot in a wireless local area network, reducing manual actions or steps. As a result, a wireless user may be authenticated relatively fast. By offering a desired user experience, user-acceptance of a wireless communication device and/or service may be increased.
Owner:ALCATEL LUCENT SAS

Autonomous underwater vehicle (AUV) three-dimensional straight path tracking control method with PID (Piping and Instruments Diagram) feedback gain

The invention provides an autonomous underwater vehicle (AUV) three-dimensional straight path tracking control method with PID (Piping and Instruments Diagram) feedback gain. The method comprises the following steps of: step 1, initializing; step 2, calculating a relative position deviation between an AUV and a virtual guide point on a desired track under a Serret-Frenet coordinate system through an AUV three-dimensional track tracking error equation; step 3, calculating a virtual controlling quantity of movement speed, a trim angle and a yawing angle of the virtual guide point on the desired track through adopting a backstepping method based on the feedback gain; step 4, calculating a virtual controlling quantity of trim angle speed and yawing angle speed of the AUV; and step 5, deducing an under-actuated AUV three-dimensional path tracking dynamics control law comprising control signals of propeller thrust, a trim control moment and a yawing control moment, and realizing under-actuated AUV three-dimensional straight path tracking control. The method can be used for realizing tracking control on a track point and a straight path track of an AUV three-dimensional space.
Owner:三亚哈尔滨工程大学南海创新发展基地

Transfer alignment method capable of estimating and compensating wing deflection deformation

The invention discloses a transfer alignment method capable of estimating and compensating wing deflection deformation. The method comprises steps as follows: binding navigation information, namely, the speed, the posture and the position, of a main inertial navigation system to an auxiliary inertial navigation system to finish coarse alignment; constructing the observed quantity by using speed and posture information sent by the main inertial navigation system to the auxiliary inertial navigation system at the fixed frequency as well as speed and posture information of the auxiliary inertial navigation system; introducing correlated variables of a wing deflection deformation model into a state equation, and establishing a system state equation and an observation equation by using a measurement misalignment angle and speed matching method; performing iterative solution by using conventional Kalman filtering, estimating information such as the posture misalignment angle, the speed error and the like of the auxiliary inertial navigation system, and correcting the speed and the posture of the auxiliary inertial navigation system with the information to obtain initial navigation information of the auxiliary inertial navigation system to finish transfer alignment. The transfer alignment is realized with the measurement misalignment angle and speed matching method, and the method has the advantages that the method is small in calculated amount, simple in form, easy to understand and the like.
Owner:NANJING UNIV OF SCI & TECH
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