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126results about How to "Limited resolution" patented technology

Dual mode capacitive touch panel

A dual mode capacitive touch panel includes a sensor substrate, an electrode layer comprising an array of sensor electrodes arranged over the sensor substrate, the array of sensor electrodes including a plurality of drive electrodes and a plurality of sense electrodes, each sensor electrode corresponding to a location on the sensor substrate, and a shield layer arranged over and spaced apart from the electrode layer. The shield layer includes a predetermined resistance that permits transmission of an electric field at a first frequency and prevents transmission of an electric field at a second frequency, wherein a spacing between the shield layer and the electrode layer is deformable as a result of a force applied to the shield layer due to a user touch, wherein the deformation alters a capacitance between the shield layer and a sensor electrode of the array. A controller is operatively coupled to the array of sensor electrodes, the controller configured to drive the shield layer and at least some sensor electrodes of the sensor electrode array at the first frequency in a first mode to measure a location of an object relative to the sensor substrate, and drive the shield and the at least some sensor electrodes at a second frequency in a second mode different from the first mode to measure a force applied toward the sensor substrate.
Owner:SHARP KK

Molecular devices activated by an electric field for electronic ink and other visual display

An electric field activated molecular system, preferably bi-stable, configured within an electric field generated by a pair of electrodes is provided for use, e.g., as electronic ink or other visual displays. The molecular system has an electric field induced band gap change that occurs via a change (reversible or irreversible) of the extent of the electron conjugation via chemical bonding change to change the band gap, wherein in a first state, there is substantial conjugation throughout the molecular system, resulting in a relatively smaller band gap, and wherein in a second state, the substantial conjugation is destroyed, resulting in a relatively larger band gap. The changing of substantial conjugation may be accomplished in one of the following ways: (1) charge separation or recombination accompanied by increasing or decreasing electron localization in the molecule; or (2) change of substantial conjugation via charge separation or recombination and pi-bond breaking or making. A primary advantage of the molecular system is improved contrast. Because the colorant of the present invention is molecular and thus effectively monoplanar, there should be no backside reflection or excessive scattering from the colorant. A second advantage of the present invention is improved resolution. Finally, each molecule of the present invention will latch to stabilize one or the other of its color states.
Owner:HEWLETT PACKARD DEV CO LP

Method for predicting indoor three-dimensional space signal field strength using an outdoor-to-indoor propagation model

The present invention relates to a method for predicting indoor three-dimensional space signal field strength by an outdoor-to-indoor propagation model, which comprises the steps of: establishing a three-dimensional space scene model from a transmitting base station to a target building; predicting space field strength of an outer envelope of the target building according to an extended COST-231-Walfisch-Ikegami propagation model; generating, on the outer envelope of the target building, a series of out-door-to-indoor virtual rays in accordance with a certain resolution; simulating a propagation procedure of the virtual rays using a ray tracing propagation model algorithm, to predict three-dimensional space signal field strength in the target building. In the present invention, an extended COST231-Walfisch-Ikegami propagation model is adopted for the transmitting base station and the outdoor region of the target building, while a ray tracing propagation model algorithm is adopted for the indoor region of the target building, which effectively combines an outdoor empirical propagation model and an indoor deterministic propagation model, so that a good equilibrium is achieved between calculation efficiency and calculation accuracy, and the algorithm has a strong engineering applicability.
Owner:RANPLAN WIRELESS NETWORK DESIGN

Sensor assembly for optically detecting the edges of a product and width-measurement method

The present invention relates to a sensor device in the edge of the optic detecting product for measuring the product width especially by confirming the light transmission affected by the product. According to the invention one row of point-shaped light sources which can be separately controlled and is provided with assured position lie at one side of the product and is used coordinately with at least one optical fiber unit, the optical fiber unit extends parallel with the row of light sources and is insulated with the latter in optics, and is optically coupled with the light which is emitted by the light source and is reflected by the product, and at least one photodetector is connected with the optical fiber unit. As the position of each optimized light source is known and the point-shaped light source is controlled successively or selectively, or is controlled with small group, the detecting of the edge can be executed with the following mode. In the control period of the n point-shaped light source the reflecting signal falls on the optical fiber and is transmitted to the photodetector, and the position of the edge of the product conveyor belt can be confirmed as the exclusive assigning of the just now controlled point-shaped light source relative to the respective position. The resolution of the information relative to the product width is confirmed by each smallest unit of the point-shaped light source, the distance between the units or the relationship of the hole.
Owner:MAHLO
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