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118results about How to "Minimize spreading" patented technology

Method and system for secure guaranteed transactions over a computer network

A trusted third-party authentication protocol that facilitates secure commercial transactions over computer networks between a merchant and a user. The method and system of the present invention generally involves three entities: 1) a guarantor, which acts as a trusted arbitrator, 2) a merchant, and 3) a consumer or user. In one embodiment, the guarantor authenticates users and provides authentication documents back to the user for use in transactions with merchants. The authentication document generated by the guarantor can be used as a means to validate a user's identity and / or to provide authorization / validation of a specific transaction.
Owner:THE BRODIA GROUP

Steering of directional sound beams

Apparatus is disclosed for steering a directional audio beam that is self-demodulated from an ultrasound carrier. The apparatus includes means for modulating a carrier signal with an audio signal and means for adjusting the amplitude and phase of at least one of the audio signal and/or the carrier signal to steer the audio beam to a desired direction. The apparatus also includes means for generating an ultrasound beam in the desired direction driven by the modulated carrier signal. The apparatus may include means for weighting the audio and/or carrier signal by a zeroth order Bessel function to synthesize a Bessel distribution source. A corresponding method for steering a directional audio beam is also disclosed. A harmonic generator may be used to generate harmonics of low frequencies in the audio signal. The harmonics may provide (upon demodulation) a psycho-acoustic impression of improved perception of low frequencies. Further, a modulated ultrasonic signal or an unmodulated audio signal may be band-passed into two or more different band-limited signals. The band-limited signals may be amplified and transmitted by ultrasonic transducers having mechanical resonance frequencies substantially equal to a characteristic frequency of the band-limited signals. Ultrasonic processing of the audio signal may include square root methods without generating large numbers of harmonics.
Owner:NANYANG TECH UNIV

Hydration station

InactiveUS20090308494A1Minimize spreadingMaintenance be expedite and simplifyLiquid flow controllersWater/sewage treatmentEngineeringWall mount
An improved hydration station comprises a wall mounted unit including a stationary lower body panel coupled to a drain, and a hinged upper body panel carrying a nozzle subassembly for dispensing water into a recess alcove defined cooperatively by the lower and upper body panels in response to user-insertion of a water-receiving receptacle into the alcove. The preferred wall unit includes a non-contact sensor for controlling water dispensing flow, and a preferred nozzle assembly includes at least one component having an antimicrobial additive. A preferred control timer automatically dispenses water in the event that the sensor does not detect a user-inserted receptable within a predetermined time interval, such as 24 hours. In addition, in a preferred form, lights on the unit are energized at one level during water dispensing, and at a second level when water is not being dispensed.
Owner:HAWS CORP

Semiconductor light emitting device

A semiconductor light emitting device including an active layer interposed between an n-type cladding layer and a p-type cladding layer employs an AlxGa1-xN (AlGaN) layer having an Al composition ratio x satisfying 0.01≦x<0.06 as the n-type cladding layer. As the Al composition ratio x decreases below 0.06, the AlGaN layer increases in refractive index. Thus, the near field pattern (NFP) in the vertical direction can spread out, and full width at half maximum of FFP in the vertical direction can be minimized. Further, since a lattice mismatch with a GaN substrate is reduced with decreasing Al composition ratio, the AlGaN layer can be formed thick without causing cracks or dislocation, and the spreading of light into the GaN substrate can be minimized.
Owner:MITSUBISHI ELECTRIC CORP

Profile adjustment in plasma ion implanter

A method and apparatus are directed to providing a dopant profile adjustment solution in plasma doping systems for meeting both concentration and junction depth requirements. Bias ramping and bias ramp rate adjusting may be performed to achieve a desired dopant profile so that shallow and abrupt junctions in vertical and lateral directions are realized that are critical to device scaling in plasma doping systems.
Owner:VARIAN SEMICON EQUIP ASSOC INC
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