Abstract: A method and apparatus for automatically calibrating vehicle parameters is described. In one embodiment, the method includes measuring a parameter value during vehicle operation; comparing the measured parameter value to an actual parameter value to identify at least one vehicle parameter bias as an actual measurement error; and modifying at least one vehicle parameter based on the at least one vehicle parameter bias.

Abstract: A method and apparatus for providing accurate localization at an industrial vehicle is described. In one embodiment, the method includes processing at least one sensor input message from a plurality of sensor devices, wherein the at least one sensor input message comprises information regarding environmental features, determining pose measurements associated with the industrial vehicle in response to each acquisition time of the at least one sensor input message and updating map data with the determined pose measurements.

Abstract: A method and apparatus for providing accurate localization for an industrial vehicle is described; including processing at least one sensor input message from a plurality of sensor devices, wherein the at least one sensor input message includes information regarding observed environmental features; determining position measurements associated with the industrial vehicle in response to at least one sensor input message, wherein the plurality of sensor devices comprises a two-dimensional laser scanner, and at least one other sensor device selected from an odometer, an ultrasonic sensor, a compass, an accelerometer, a gyroscope, an inertial measurement unit, or an imaging sensor; and updating a vehicle state using the position measurements.

Abstract: A layout of five stroke shapes for inputting Chinese characters in a device is disclosed. The layout is Cross-shaped with relative positions of the five strokes being helpful to users knowledgeable in Chinese writing. Further, the layout arrangement is accompanied with a lyric which helps users remember and memorize the locations of the five strokes on the keypad. The relative locations of the five strokes are: Pie at the left of the cross, Dian at the right, Heng at the top, Zhe at the bottom, and Shu at the center. The lyric describes the shapes of the strokes and the relative locations of the strokes in the Cross-shaped configuration. For example, the lyric may be “left slash, right gash, upper over, lower turn with one down in the middle.” The lyric may have a tune to become a song and may be burned in a ROM of a device, such as a mobile phone.