Patent application number | Description | Published |
20090009371 | METHOD AND APPARATUS FOR A/D CONVERSION - A method and an apparatus for converting an analog input signal into a digital output signal using a sigma-delta modulator architecture with a digital tracking filter. The digital tracking filter may have an order greater than one, and the signal and noise transfer functions of the sigma-delta modulator architecture are chosen to provide a sigma-delta modulator architecture with a high dynamic range even if a relatively low oversampling ratio is used. | 01-08-2009 |
20090085784 | Integrated Circuit Comprising a Plurality of Digital-to-Analog Converters, Sigma-Delta Modulator Circuit, and Method of Calibrating a Plurality of Multibit Digital-to-Analog Converters - In an integrated circuit including a first multibit digital-to-analog converter and a second multibit digital-to-analog converter, a calibration circuit is provided which is shared between the first and second digital-to-analog converters. | 04-02-2009 |
20090102689 | MULTIPLE MODE SIGMA-DELTA MODULATOR - Modulation circuits for operating in at least a first and second mode are described herein. | 04-23-2009 |
20090128384 | Multi-Standard Analog-To-Digital Data Conversion - Implementations related to multi-standard digital subscriber line analog-to-digital data conversion are described. | 05-21-2009 |
20120019317 | Self-Oscillating Driver Circuit - A self-oscillating driver circuit includes a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path includes a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range. | 01-26-2012 |
20120063589 | Driver Circuit and Method for Driving a Signal - A driver circuit for driving a transmit signal for a line includes a signal amplifier configured to deliver a transmit signal, present at a signal input of the signal amplifier, amplified with a gain to a signal output, a line interface circuit connected between the signal output of the signal amplifier and the line, and a hybrid circuit connected to the line interface circuit, the hybrid circuit configured to suppress the transmit signal and couple a received signal received via the line to a signal input of the signal amplifier to provide impedance synthesis. | 03-15-2012 |
Patent application number | Description | Published |
20100132251 | METHOD FOR PURIFICATION OF BIODIESEL - The invention pertains to a method for purifying crude biodiesel, wherein said crude biodiesel is contacted with a clay material, said clay material having: a surface area of more than 120 m2/g; a total pore volume of more than 0.35 ml/g; a silicon content, calculated as Siθ2, of at least 60 wt.-%. | 06-03-2010 |
20110154723 | PROCESS FOR REMOVING STERYL GLYCOSIDES FROM BIODIESEL - A method for purifying biodiesel, wherein a crude biodiesel is provided which contains at least one glycoside, and the crude biodiesel is reacted with an adsorbent which contains at least one smectite-silica gel mixed phase. The smectite-silica gel mixed phase has at least the following physical parameters: a specific surface area of more than 120 m2/g; a total pore volume of more than 0.35 ml/g; and a silicon content, calculated as SiO2, of at least 60 wt-%. A purified biodiesel is separated off from the adsorbent. | 06-30-2011 |
20110162153 | USE OF ADSORBENTS FOR THE PURIFICATION OF DRY CLEANING SOLVENTS - The present invention refers to the use of an adsorbent comprising particles comprising an amorphous phase and a crystalline phase for the purification of dry cleaning solvents. The present invention furthermore relates to a filter unit containing such an adsorbent. It also refers to a dry cleaner containing a filter according to the invention. Additionally, the present invention refers to a process for dry cleaning textiles, wherein an adsorbent according to the invention is used. | 07-07-2011 |
Patent application number | Description | Published |
20120141907 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - The fuel cell membrane electrode assembly includes PtRu active species supported on mesoporous carbon nitride materials for use in the anode of direct methanol fuel cells. The fuel cell membrane electrode assembly includes an anode plate, a gas diffusion layer, and a catalyst adjacent a PEM membrane. The composition of the catalyst is about 30 wt % active species and 70 wt % support materials. The nitrided PtRu on a mesoporous carbon support provides enhanced hydrogen adsorbing capacity to accelerate the rate of oxidation of methanol at the anode of a direct methanol fuel cell, resulting in greater efficiency of the fuel cell. | 06-07-2012 |
20130165318 | METHANOL ELECTRO-OXIDATION CATALYST AND METHOD OF MAKING THE SAME - The methanol electro-oxidation catalysts include nano-oxides of rare earth metals (i.e., cesium, praseodymium, neodymium and samarium) and platinum nano-particles. The nano-oxides of the rare earth metals are dispersed during synthesis of a support material, preferably formed from mesoporous carbon. The platinum nano-particles form between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, the rare earth metal forms between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance (between about 70 wt % and about 80 wt %) of the methanol electro-oxidation catalyst. | 06-27-2013 |
20130172174 | METHANOL ELECTRO-OXIDATION CATALYST AND METHOD OF MAKING THE SAME - The active methanol electro-oxidation catalysts include nano-oxides of transition metals (i.e., iron, cobalt and nickel) and platinum-ruthenium alloy nano-particles. The nano-oxides of the transition metals are dispersed during synthesis of a support material, such as mesoporous carbon. The catalyst includes a support material formed from mesoporous carbon, a nano-oxide of a transition metal dispersed in the support material, and platinum-ruthenium alloy nano-particles supported on the nano-oxide of the transition metal, the platinum-ruthenium alloy nano-particles (in a 1:1 molar ratio) forming about 15 wt % of the methanol electro-oxidation catalyst, the transition metals forming about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance of about 70 wt % of the methanol electro-oxidation catalyst. | 07-04-2013 |
Patent application number | Description | Published |
20130220742 | ELEVATOR - An elevator includes an elevator hoistway with an elevator car arranged to move therein. The elevator car includes an interior bounded by at least the elevator care roof. A frame structure includes two parallel, horizontal, elongated roof beams that are at a horizontal distance from each other. Between the roof beams is a trough that has an upward-facing base surface, and a standing platform in connection with the roof of the elevator car that includes a standing surface, immediately above which is a space free of the parts of the elevator car and free of the ropes of the elevator, for enabling standing on top of the standing surface at least when the elevator car is situated at a distance from the top end of the elevator hoistway. The standing surface forms at least a part of the base surface of the trough. | 08-29-2013 |
20130327599 | ELEVATOR - An elevator includes a hoisting machine, hoisting roping, an elevator hoistway, and an elevator car arranged to move in the elevator hoistway, and possibly a counterweight. The elevator car includes an interior, which is bounded by at least a roof of the elevator car, and a frame structure, which includes one or more parallel, horizontal, elongated roof beams in connection with the roof of the elevator car, preferably two parallel, horizontal, elongated roof beams, and which elevator includes one or more luminaires for lighting the interior of the elevator car. The structure of each of the one or more luminaires, preferably at least the light source and/or reflective surface of each of the one or more luminaires, is mainly by the side of the one or more roof beams. | 12-12-2013 |
Patent application number | Description | Published |
20080196806 | High-Performance Type for a Motor Vehicle - A tyre for a motor vehicle, in particular a high-performance tyre, is provided with a tread having an overall width. The tread includes first and second circumferential grooves which separate a central region from first and second shoulder regions. The tread includes a circumferential cut in the first shoulder region at a distance from the first circumferential groove; and a plurality of circumferentially repeated transverse groove modules. A first shoulder portion of each transverse groove module includes at least one main transverse groove which includes a first substantially rectilinear portion inclined by a first angle with respect to a radial plane, a second substantially rectilinear portion inclined by a second angle with respect to the radial plane and arranged between the circumferential cut and the first circumferential groove, and a first curve portion connecting the first and the second substantially rectilinear portions. | 08-21-2008 |
20090199943 | On/Off-Road Tire For A Motor Vehicle - A tire having a tread wherein a first shoulder region includes a plurality of shoulder blocks that are circumferentially separated by shoulder transverse grooves. A central region includes a plurality of substantially transverse grooves extending from a first circumferential groove toward the equatorial plane, wherein two circumferentially consecutive substantially transverse grooves delimit a central area. The central area includes a first central block; a second central block having one side forming a part of the wall of the first circumferential groove; and a third central block circumferentially shifted with respect to the first central block and positioned at a distance from the first circumferential groove, the third central block being separated from the second central block by a central transverse groove which is inclined with respect to the equatorial plane. The substantially transverse grooves have respective end portions at a distance from the equatorial plane. | 08-13-2009 |
20110108175 | RAIN TYRE - A tyre includes a tread band provided with a tread pattern including a first and a second portion of tread pattern, repeated just the same along the circumferential extent of the tyre, forming respectively a short pitch module and a long pitch module of the tread pattern, wherein the modules include a respective first transverse groove in which, starting from an axially outer first end thereof toward an opposed axially inner second end thereof, an initial section and a section of enlarged cross-section are formed, the latter being blind, at least on its axially inner side, when in the footprint area. The initial section and the section of enlarged cross-section have, respectively, a first width and a second width, and the ratio between the second width and the first width of a first transverse groove belonging to a short pitch module is greater than the ratio between the second width and the first width of a first transverse groove belonging to a long pitch module. | 05-12-2011 |
20120118457 | WINTER TYRE - A tyre includes: a tread band on which is defined a radially outer tread surface, a first plurality of blocks provided on the tread band, and at least a first sipe of the restrained type extending on at least one block of the first plurality in a substantially axial direction defined on the tread band. The first sipe is configured so as to define, between a first and a second block portion divided by the first sipe, at least two separate and distinct couplings of the male/female type, such as to prevent the mutual displacement of the block portions in any direction which, at the block, is substantially tangential to the tread surface, and such as to permit mutual displacement of the block portions in a direction incident to the tread surface. In addition, the first sipe does not intersect any other sipe of the restrained type within the block. | 05-17-2012 |
20140090760 | HIGH-PERFORMANCE TYRE FOR A MOTOR VEHICLE - A tyre for a motor vehicle, in particular a high-performance, tyre is provided with a tread having an overall width. The tread includes first and second circumferential grooves which separate a central region from first and second shoulder regions. The tread includes a circumferential cut in the first shoulder region at a distance from the first circumferential groove; and a plurality of circumferentially repeated transverse groove modules. A first shoulder portion of each transverse groove module includes at least one main transverse groove which includes a first substantially rectilinear portion inclined by a first angle with respect to a radial plane, a second substantially rectilinear portion inclined by a second angle with respect to the radial plane and arranged between the circumferential cut and the first circumferential groove, and a first curve portion connecting the first and the second substantially rectilinear portions. | 04-03-2014 |
20140209226 | TYRE FOR A VEHICLE WHEEL INCLUDING A TREAD-BAND PATTERN - A tyre for a vehicle wheel includes a tread band. The tread band includes a pattern, including at least two circumferential portions, an elongated ridge, and at least two shoulder blocks. The at least two circumferential portions are disposed in axial side-by-side relationship. At least one of the circumferential portions includes a first geometric module repeated along a circumferential extension direction of the tyre. The elongated ridge is bounded by two grooves oblique to the circumferential extension direction and is divided into a plurality of intermediate blocks with respect to an axial extension direction of the tread band. The intermediate blocks are bounded by a plurality of cuts substantially transverse to the elongated ridge. The at least two shoulder blocks are associated with the elongated ridge, are circumferentially aligned along a side edge of the tread band, and are bounded by grooves oriented substantially transversely to the circumferential extension direction. | 07-31-2014 |