36results about How to "Improve equality" patented technology

A polyphase inverter employs multiple power semiconductor switches both for its operation and to distribute the current and heat loads for improved operation and cooling. The inherently high currents required for motor operation are divided among a plurality of smaller conductors and semiconductor switches, making a printed wiring board feasible both for power distribution and for control. The approach also permits shorter path lengths to the switches, reduced inductance, faster possible operation of the power switches, and reduced transient activity outside of the immediate switch area. Signals derived from various power points can enable the controller to assess actual current and power distribution and to apportion losses appropriately, or to limit total power output should the losses be deemed excessive.

The present invention provides a digital signal processing apparatus which can perform batch processing of mixing and gain controlling, etc., one time while the frequency characteristics of different filters are being mixed to a plurality of input signals in case of the re-quantization only once. The present invention provides a digital signal processing apparatus for outputting a 1-bit digital signal by performing a delta sigma modulation process on a plurality of input signals, which includes a plurality of integrating unit, a plurality of feedforward arithmetic units that supply an arithmetic result calculated based on an independent feedforward coefficient to each input signal, to each of the plurality of the integrating units, a quantizing unit that quantizes the integrated output outputted from one of the plurality of the integrating unit, a plurality of feedback arithmetic units that supply an arithmetic result obtained by calculating quantized data outputted from the quantizing unit based on the independent feedback coefficient, to each of the plurality of the integrating units, and a mixing unit that mixes the output of the integrating unit of the front stage, the output of the feedforward arithmetic unit and the output of the feedback arithmetic unit and supplies the mixed result to the integrating unit of the rear stage.

The present invention is directed to musical instruments that are based on the operation of an air reed and, in particular, encompasses end-blown flutes comprising an acoustic air space and a fluid air space. The communication between the acoustic and fluid air spaces is positioned so as to minimally interfere with the flow of air introduced, i.e., blown, into the fluid space and enables the instrument to produce rich, in-tune tones across a three octave range. The acoustic air space is formed by a hollow tuning chamber positioned opposite the air reed. In alternate embodiments, the invention encompasses a head-joint of a musical instrument, which head joint comprises a an acoustic space and a fluid space. The head joint of the invention may be used to replace or in place of the head joint or mouthpiece of common musical instruments of the woodwind family, e.g., the Western flute, saxophone, clarinet, oboe, nay, shakuhachi, or recorder.

A semiconductor structure for electrostatic discharge protection is presented. The semiconductor structure comprises a grounded gate nMOS (GGNMOS) having a substrate, a gate electrode, a source region and a drain region. A plurality of contact plugs is formed on the source and drain side. A plurality of first level vias is electrically coupled to the GGNMOS and has a substantially asymmetrical layout in the source and drain regions. A second level via(s) re-routes the ESD current to the desired first level vias. The uniformity of the current flow in the GGNMOS is improved.