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Dubrovsky, US
Opher Dubrovsky, Redmond, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20090049243 | Caching Dynamic Content - Aspects of the subject matter described herein relate to caching dynamic content. In aspects, caching components on a requesting entity and on a content server cache requested content. When a request for content similar to cached content is received, the requesting entity sends a request for the content and an identifier of similar cached content to the content server. The content server obtains the requested content and determines the differences between the requested content and the cached content. The content server then sends the differences to the requesting entity. The requesting entity uses the differences and its cached content to construct the requested content and provides the requested content. | 02-19-2009 |
Timothy Dubrovsky, Davis, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100029017 | Mono-chlorinated hydroxycoumarin conjugates - The present invention provides fluorescent biopolymers that are amino acid polymers conjugated to multiple mono-chlorinated 3-carbonyl-7-hydroxy-coumarin dyes, and methods of their use. The fluorescent biopolymers containing multiple mono-chlorinated 3-carbonyl-7-hydroxy-coumarin dyes generally exhibit superior fluorescence properties compared to biopolymers labeled with multiple non-chlorinated hydroxycoumarin dyes. The fluorescent biopolymers of the invention in which the amino acid polymer is an antigen-specific antibody are particularly useful for analyzing cells by flow cytometers that are equipped with a violet laser as an excitation source due to their strong absorption at 405 nm and high fluorescence quantum yield. | 02-04-2010 |
| 20100255504 | Reactive Heterocycle-Substituted 7-Hydroxycoumarins and Their Conjugates - Chemically-reactive, water-soluble, heterocycle-substituted 7-hydroxycoumarin dyes, their bioconjugates and uses are described. The conjugates derived from reactive heterocycle-substituted 7-hydroxycoumarin dyes are used for analyzing biological compounds. These heterocycle-substituted 7-hydroxycoumarin dyes are particularly useful as fluorescent labels for biopolymer detection reagents, such as antibodies or nucleic acid probes. The dye-antibody conjugates of the invention are particularly useful for analyzing analytes using a flow cytometer equipped with a violet laser as an excitation source due to their strong absorption at 405 nm and high fluorescence quantum yield. | 10-07-2010 |
Zivthan Dubrovsky, Lexington, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20100238119 | Touchscreen Keyboard Overlay - An external cover for a tablet smartphone with a flat touchscreen includes a rear clamshell formed of deformable plastic material that receives and surrounds the tablet, and a rim that resiliently clips the rear clamshell to the tablet. A hinge blister and intervening web forms a two degree of freedom hinge with a form-fitting front clamshell that can be freely lifted and dropped on the touchscreen but indexes to it, can be locked in place with a clip that readily engages and disengages from a docking port at the bottom of the tablet, and that is strengthened by an arch shaped rim. A planar sheet, formed of dielectric plastic, that covers the entirety of the flat touchscreen, is slightly suspended above to create an air gap, and is formed in a shape and thickness that substantially transmits the shape of a capacitive finger contact patch through the planar sheet to the touchscreen when the sheet is pushed down to the touchscreen. A keyboard may be formed in, on, or with the planar sheet in a location corresponding to the location of a virtual keyboard appearing on the touchscreen. | 09-23-2010 |
Zivthan A. Dubrovsky, Waltham, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20080276407 | Compact Autonomous Coverage Robot - An autonomous coverage robot includes a chassis having forward and rearward portions and a drive system carried by the chassis. The forward portion of the chassis defines a substantially rectangular shape. The robot includes a cleaning assembly mounted on the forward portion of the chassis and a bin disposed adjacent the cleaning assembly and configured to receive debris agitated by the cleaning assembly. A bin cover is pivotally attached to a lower portion of the chassis and configured to rotate between a first, closed position providing closure of an opening defined by the bin and a second, open position providing access to the bin opening. The robot includes a body attached to the chassis and a handle disposed on an upper portion of the body. A bin cover release is actuatable from substantially near the handle. | 11-13-2008 |
| 20090044370 | REMOVING DEBRIS FROM CLEANING ROBOTS - A cleaning robot system includes a robot and a robot maintenance station. The robot includes a chassis, a drive system configured to maneuver the robot as directed by a controller, and a cleaning assembly including a cleaning assembly housing and a driven cleaning roller. The robot maintenance station includes a station housing and a docking platform configured to support the robot when docked. A mechanical agitator engages the roller of the robot with the robot docked. The agitator includes an agitator comb having multiple teeth configured to remove accumulated debris from the roller as the agitator comb and roller are moved relative to one another. The robot maintenance station includes a collection bin arranged to receive and hold debris removed by the mechanical agitator. | 02-19-2009 |
| 20090254218 | ROBOT CONFINEMENT - A robot lawmnower includes a body, a drive system carried by the body, at least one caster wheel supporting the body, a grass cutter carried by the body, a controller in communication with the drive system, and a bump sensor in communication with the controller. The controller is configured to maneuver the robot to turn in place and to redirect the robot in response to the bump sensor sensing contact with an obstacle. The drive system is configured to maneuver the robot across a lawn and includes differentially driven right and left drive wheels positioned rearward of a transverse center axis defined by the body. The at least one caster wheel is positioned substantially forward of the right and left drive wheels, and the grass cutter is positioned at least partially forward of the right and left drive wheels and at least partially behind the at least one caster wheel. | 10-08-2009 |
| 20100011529 | REMOVING DEBRIS FROM CLEANING ROBOTS - A cleaning robot system includes a robot and a robot maintenance station. The robot includes a chassis, a drive system configured to maneuver the robot as directed by a controller, and a cleaning assembly including a cleaning assembly housing and a driven cleaning roller. The robot maintenance station includes a station housing and a docking platform configured to support the robot when docked. A mechanical agitator engages the roller of the robot with the robot docked. The agitator includes an agitator comb having multiple teeth configured to remove accumulated debris from the roller as the agitator comb and roller are moved relative to one another. The robot maintenance station includes a collection bin arranged to receive and hold debris removed by the mechanical agitator. | 01-21-2010 |
| 20100107355 | Removing Debris From Cleaning Robots - A cleaning robot system including a robot and a robot maintenance station. The robot includes a robot body, a drive system, a cleaning assembly, and a cleaning bin carried by the robot body and configured to receive debris agitated by the cleaning assembly. The robot maintenance station includes a station housing configured to receive the robot for maintenance. The station housing has an evacuation passageway exposed to a top portion of the received robot. The robot maintenance station also includes an air mover in pneumatic communication with the evacuation passageway and a collection bin carried by the station housing and in pneumatic communication with the evacuation passageway. The station housing and the robot body fluidly connect the evacuation passageway to the cleaning bin of the received robot. The air mover evacuates debris held in the robot cleaning bin to the collection bin through the evacuation passageway. | 05-06-2010 |
Zivthan A.c. Dubrovsky, Waltham, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20080282494 | Modular robot - A coverage robot including a chassis, multiple drive wheel assemblies disposed on the chassis, and a cleaning assembly carried by the chassis. Each drive wheel assembly including a drive wheel assembly housing, a wheel rotatably coupled to the housing, and a wheel drive motor carried by the drive wheel assembly housing and operable to drive the wheel. The cleaning assembly including a cleaning assembly housing, a cleaning head rotatably coupled to the cleaning assembly housing, and a cleaning drive motor carried by cleaning assembly housing and operable to drive the cleaning head. The wheel assemblies and the cleaning assembly are each separately and independently removable from respective receptacles of the chassis as complete units. | 11-20-2008 |