Motorola

About: Motorola is a company organization based out in Schaumburg, Illinois, United States. It is known for research contribution in the topics: Signal & Communications system. The organization has 27298 authors who have published 38274 publications receiving 968710 citations. The organization is also known as: Motorola, Inc. & Galvin Manufacturing Corporation.

Method and system for monitoring air pressure of tires on a vehicle

Abstract: A method and system for monitoring air pressure or operational status of at least one particular tire of a vehicle facilitates ready identification of a relative mounting position of the particular tire. At least one pressure indicating signal is received (110 of FIG. 8) and is associated with a particular tire mounted at an unknown relative position on a vehicle. Physical parameter data are obtained (112) indicating physical parameter measurements at the different tires of a vehicle. The obtained physical parameter data are evaluated (114) to identify the relative mounting position of the particular tire on the vehicle. Accordingly, an operator of the vehicle may be provided with an indication (130) that an air pressure of a particular tire is less than a proper air pressure so that peak vehicle performance and necessary maintenance may be obtained. Even if the indication informs that the pressure is normal, the operator is reassured that the tires are functioning properly.

Dominance-Based Multiobjective Simulated Annealing

Abstract: Simulated annealing is a provably convergent optimizer for single-objective problems. Previously proposed multiobjective extensions have mostly taken the form of a single-objective simulated annealer optimizing a composite function of the objectives. We propose a multiobjective simulated annealer utilizing the relative dominance of a solution as the system energy for optimization, eliminating problems associated with composite objective functions. We also propose a method for choosing perturbation scalings promoting search both towards and across the Pareto front. We illustrate the simulated annealer's performance on a suite of standard test problems and provide comparisons with another multiobjective simulated annealer and the NSGA-II genetic algorithm. The new simulated annealer is shown to promote rapid convergence to the true Pareto front with a good coverage of solutions across it comparing favorably with the other algorithms. An application of the simulated annealer to an industrial problem, the optimization of a code-division-multiple access (CDMA) mobile telecommunications network's air interface, is presented and the simulated annealer is shown to generate nondominated solutions with an even and dense coverage that outperforms single objective genetic algorithm optimizers.

Method of selecting device threshold voltages for high speed and low power

Abstract: A method of selecting device (14-16, 18-24, 28-30) threshold voltages for high speed and low overall power involves identifying (42) the critical paths by predetermined timing criteria. All transistors have an initial, typically high, threshold voltage (40). Transistors outside the critical paths keep the initial high threshold voltages to minimize static power drain. The transistors in the critical path are selected (43) according to a predetermined sorting function to have a low threshold voltage and thereby switch faster. Although the lower threshold voltage devices consume more static power in standby mode, the power drain is accepted as a trade-off in favor of increased speed through the critical path. The supply voltage is reduced to minimize dynamic power. The integrated circuit is thus optimized to run at a higher frequency with lower overall power consumption.

FED up with fat tubes

Abstract: Field emission displays (FED) offer the best and brightest of two display worlds: the bright picture of bulky cathode-ray tube devices and the trim flat-panel picture of liquid-crystal displays. The similarities and differences between FED and CRT are briefly mentioned. The principles of FED operation, and the fabrication of the emitter array and anode, are described.