Patent application number | Description | Published |
20090159521 | METHOD AND APPARATUS RELATED TO LIQUID FILTRATION SYSTEMS - A filtration module comprises a housing having an inlet and an outlet; a plurality of hollow fiber membranes disposed in the housing, each membrane having a wall and a lumen open to the outlet; a porous shell disposed in the housing and encasing the plurality of hollow fiber membranes, the shell having an opening through which ends of the hollow fiber membranes pass; and a plug in the outlet, the ends of the hollow fiber membranes passing through the plug and the shell ending in the plug. A liquid treatment apparatus comprising the filtration module is also disclosed, as are method for making the filtration module and the liquid treatment apparatus. | 06-25-2009 |
20090311778 | SUPPLY SYSTEM FOR CELL CULTURE MODULE - A device for supplying cell culture modules with nutrients has an arrangement of channels, pumps and valves in or on a plate. The valves may be pinch valves operated by deforming an elastic cover over a solid body and the pump may be a pinch valve pump. The channels may be defined, at least in part, by the plate. The pumps, channels and valves may be located within the thickness of the plate and the cover. The device may be used to supply nutrients to cell culture modules according to a perfusion operation, a re-circulation operation and/or a combination of both. A pump may comprise a generally rigid solid body and a seal. The solid body may wholly or partially define an inlet channel, a plenum and an outlet channel. A port between the inlet channel and the plenum is covered by the seal. A surface of the plenum is deformable. Deforming the surface forces liquid in the plenum to push the seal to cover the inlet channel port and to flow through the outlet channel. When the surface is returned to its original position, fluid flows into the plenum at least partially through the inlet channel displacing or deforming the seal so as to allow flow through the port. | 12-17-2009 |
Patent application number | Description | Published |
20080274217 | Oral Compositions and Route of Administration for the Delivery of a Thylakoid Extract - The present invention provides a new use for a thylakoid extract, that is for oral route of administration, and a composition comprising the thylakoid extract in adjunction with an acceptable carrier for oral administration. Besides the pharmaceutical use, the thylakoid extract enters the composition of food or food supplements, for its inocuity and its capacity to provide a diet enriched in anti-oxidants and anti-inflammatory compounds. Therefore, in accordance with the present invention is provided the use of a thylakoid extract in the making of an oral composition for treating or preventing a disease or disorder involving the formation of reactive oxygen species or inflammation. Also is provided a method for treating or preventing a disease or disorder involving the formal of reactive oxygen species or inflammation in an individual, which comprises the step of orally administering an effective dose of a thylakoid extract. Further is provided an oral composition comprising a thylakoid extract and a vehicle for oral ingestion or oral administration. An oral composition comprising purified thylakoids and a carrier for oral ingestion or oral administration, with the proviso that the carrier does not essentially consists of water, physiological saline or propylene glycol is also provided as food or a food supplement, or as a pellet, or encapsulated granules or powder. The carrier may be present in an amount of 0.01% to 95% (w/w) of the total composition. The purified thylakoids are present in an amount which achieves a dosage of 0.1 to 10 mg per Kg of a subject's body weight. | 11-06-2008 |
20090126747 | PLANT EXTRACTS AND USES THEREOF IN FILTER SYSTEMS - The present invention relates to compositions and methods for reducing the concentration of noxious substances in gases and smoke. Filters comprising plant extracts, such as parenchyma tissue extract and mesophyll cell extract, are also provided, as well as methods for making same. | 05-21-2009 |
Patent application number | Description | Published |
20080210848 | COLUMN CURRENT SOURCE - A column current source for an image sensor includes an array of pixels arranged in rows and columns, a reference current source, a transistor connected as a source follower to the reference current source and forming one half of a current mirror, and a plurality of current sources each connected to a column of pixels and with each current source forming the other half of the current mirror, thereby mirroring the reference current source. The current sources are connected to a first common node. A resistor is connected between the first common node and a second common node. One or more resistors are connected in series between the second common node and the transistor drain, and two or more switches are selectively operable to short circuit the resistors allowing the current sources to provide more than two current levels, thereby optimizing the image sensor current consumption for mobile devices. | 09-04-2008 |
20090237536 | ANALOG-TO-DIGITAL CONVERSION IN IMAGE SENSORS - An image sensor has a per-column ADC arrangement including first and second capacitors for correlated double sampling, and a comparator circuit. The capacitors are continuously connected to, respectively, the analog pixel signal and a ramp signal without use of a hold operation. The comparator circuit comprises a differential amplifier having one input connected to the junction of the two capacitors and another input connected to a reference signal. The reference signal is preferably sampled and held from a reference voltage. The use of a differential amplifier as first stage of the comparator addresses problems arising from ground voltage bounce when a large pixel array images a scene with low contrast. | 09-24-2009 |
20100157035 | ANALOG-TO-DIGITAL CONVERSION IN IMAGE SENSORS - An image sensor has a per-column ADC arrangement including first and second capacitors allowing a comparator circuit to perform correlated double sampling. The capacitors are continuously connected to, respectively, the analog pixel signal and a ramp signal without use of a hold operation. The comparator circuit comprises a differential input being connected to the junction of the two capacitors and being biased by a reference signal. The reference signal is preferably sampled and held from a reference voltage. The use of a differential input as first stage of the comparator addresses problems arising from ground voltage bounce when a large pixel array images a scene with low contrast. Connectivity of the differential input stage allows the ramp signal to see a constant capacitive load thus reduce image artifacts referred to as smear. | 06-24-2010 |
20120006973 | IMAGE SENSOR WITH SAMPLE AND HOLD CIRCUITRY FOR ADDRESSING TIME VARIANT NOISE - An image sensor includes an array of pixels. Each pixel has at least one photo-sensitive element. Readout circuitry receives an analog signal from each pixel at a first time and at a second time, between which the analog signal changes. The image sensor further includes associated support circuitry which is a source of time variant noise. The signal level at both first and second times includes pixel noise. Sample and hold circuitry is provided to maintain substantially level at least a proportion of this support circuitry noise time invariant at the sensor output between the first time and the second time. | 01-12-2012 |
20120312963 | IMAGE SENSOR ARRANGEMENT - Each column of pixels in an image sensor array has at least two column bitlines connected to an output of each pixel. A readout input circuit includes first inputs and a second input. Each first input is connected, via a capacitance, to a comparator input node. The second input is connected via a capacitance to the same comparator input node. The first inputs receive, in parallel, an analog signal acquired from the pixels via the column bitlines. The analog signals vary during a pixel readout period and have a first level during a first calibration period and a second level during a second read period with the analog signals being constantly read onto the capacitances during both the first calibration period and the second read period. The comparator compares an average of the signals on the plurality of first inputs to the reference signal. | 12-13-2012 |
20130155239 | IMAGE SENSOR WITH IMPROVED DYNAMIC RANGE - An image sensor having improved dynamic range includes a signal that is read out for a selection of pixels which act as a calibration to govern the choice of exposure levels to be applied to the rest of the array. In this way, the sensor is operable to adapt to variations in scene intensity. The pixels in the array are vertically and horizontally addressed so as to enable accounted for small areas of intensity variation across an imaged scene. | 06-20-2013 |