Patent application number | Description | Published |
20130191914 | CLOUD-BASED GATEWAY SECURITY SCANNING - Some embodiments of cloud-based gateway security scanning have been presented. In one embodiment, some data packets are received sequentially at a gateway device. The data packets constitute at least a part of a file being addressed to a client machine coupled to the gateway device. The gateway device forwards an identification of the file to a remote datacenter in parallel with forwarding the data packets to the client machine. The datacenter performs signature matching on the identification and returns a result of the signature matching to the gateway device. The gateway device determining whether to block the file from the client machine based on the result of the signature matching from the datacenter. | 07-25-2013 |
20140053264 | METHOD AND APPARATUS TO PERFORM MULTIPLE PACKET PAYLOADS ANALYSIS - A method and apparatus for identifying data patterns of a file are described herein. In one embodiment, an exemplary process includes, but is not limited to, receiving a data packet of a data stream containing a file segment of a file originated from an external host and destined to a protected host of a local area network (LAN), the file being transmitted via multiple file segments contained in multiple data packets of the data stream, and performing a data pattern analysis on the received data packet to determine whether the received data packet contains a predetermined data pattern, without waiting for a remainder of the data stream to arrive. Other methods and apparatuses are also described. | 02-20-2014 |
20140059681 | METHOD AND AN APPARATUS TO PERFORM MULTIPLE PACKET PAYLOADS ANALYSIS - A method and an apparatus to perform multiple packet payload analysis have been disclosed. In one embodiment, the method includes receiving a plurality of data packets, each of the plurality of data packets containing a portion of a data pattern, determining whether each of the plurality of data packets is out of order, and making and storing a local copy of the corresponding data packet if the corresponding data packet is out of order. Other embodiments have been claimed and described. | 02-27-2014 |
20140089249 | DATA PATTERN ANALYSIS USING OPTIMIZED DETERMINISTIC FINITE AUTOMATION - Techniques for data pattern analysis using deterministic finite automaton are described herein. In one embodiment, a number of transitions from a current node to one or more subsequent nodes representing one or more sequences of data patterns is determined, where each of the current node and subsequent nodes is associated with a deterministic finite automaton (DFA) state. A data structure is dynamically allocated for each of the subsequent nodes for storing information associated with each of the subsequent nodes, where data structures for the subsequent nodes are allocated in an array maintained by a data structure corresponding to the current node if the number of transitions is greater than a predetermined threshold. Other methods and apparatuses are also described. | 03-27-2014 |
20140317719 | Cloud-Based Gateway Security Scanning - Some embodiments of cloud-based gateway security scanning have been presented. In one embodiment, some data packets are received sequentially at a gateway device. The data packets constitute at least a part of a file being addressed to a client machine coupled to the gateway device. The gateway device forwards an identification of the file to a remote datacenter in parallel with forwarding the data packets to the client machine. The datacenter performs signature matching on the identification and returns a result of the signature matching to the gateway device. The gateway device determining whether to block the file from the client machine based on the result of the signature matching from the datacenter. | 10-23-2014 |
20140359764 | REASSEMBLY-FREE DEEP PACKET INSPECTION ON MULTI-CORE HARDWARE - Some embodiments of reassembly-free deep packet inspection (DPD on multicore hardware have been presented. In one embodiment, a set of packets of one or more files is received at a networked device from one or more connections. Each packet is scanned using one of a set of processing cores in the networked device without buffering the one or more files in the networked device. Furthermore, the set of processing cores may scan the packets substantially concurrently. | 12-04-2014 |
20140373156 | NOTIFICATION FOR REASSEMBLY-FREE FILE SCANNING - Techniques for notification of reassembly-free file scanning are described herein. According to one embodiment, a first request for accessing a document provided by a remote node is received from a client. In response to the first request, it is determined whether a second request previously for accessing the document of the remote node indicates that the requested document from the remote node contains offensive data. If the requested document contains offensive data, a message is returned to the client, without accessing the requested document of the remote node, indicating that the requested document is not delivered to the client. | 12-18-2014 |
20150039550 | CONSTRUCTION ABORTION OF DFA BASED ON EXPRESSION - DFA construction may be aborted if the DFA will become too big for the computing device to handle or based on user preferences. A DFA may be constructed from an NFA, which is constructed from an expression. The expression may have a total number of operands and operators r. The determination to abort DFA construction may be based on the operands. If the number of DFA nodes constructed is more than a lower threshold and the number of DFA nodes constructed is greater than a function, f(r), the DFA construction may be aborted. If the number of DFA nodes is greater than a higher threshold, the DFA construction may be aborted. The lower threshold may be determined based on computing device capabilities and user preference. The higher threshold may be based on computing device capabilities. | 02-05-2015 |
20150040142 | EFFICIENT DFA GENERATION FOR NON-MATCHING CHARACTERS AND CHARACTER CLASSES IN REGULAR EXPRESSIONS - A character class is detected in a regular expression and substituted with a pseudo character. A table is created with a bit vector for each pseudo character inserted into the regular expression. Each bit in the bit-vector represents one character of the alphabet from which the expression is generated. The status of the bits in a bit-vector indicates which characters of the alphabet are included in the character class. The pseudo character in the modified regular expression is used to construct a non-deterministic finite automaton (NFA). The NFA with the pseudo character is then used to construct a deterministic finite automaton (DFA). When constructing the DFA, the bit-vectors are used to determine if a certain transition should be constructed in the DFA. | 02-05-2015 |
20150295894 | METHOD AND APPARATUS TO PERFORM MULTIPLE PACKET PAYLOADS ANALYSIS - A method and apparatus for identifying data patterns of a file are described herein. In one embodiment, an exemplary process includes, but is not limited to, receiving a data packet of a data stream containing a file segment of a file originated from an external host and destined to a protected host of a local area network (LAN), the file being transmitted via multiple file segments contained in multiple data packets of the data stream, and performing a data pattern analysis on the received data packet to determine whether the received data packet contains a predetermined data pattern, without waiting for a remainder of the data stream to arrive. Other methods and apparatuses are also described. | 10-15-2015 |
20150350231 | METHOD AND AN APPARATUS TO PERFORM MULTIPLE PACKET PAYLOADS ANALYSIS - A method and an apparatus to perform multiple packet payload analysis have been disclosed. In one embodiment, the method includes receiving a plurality of data packets, each of the plurality of data packets containing a portion of a data pattern, determining whether each of the plurality of data packets is out of order, and making and storing a local copy of the corresponding data packet if the corresponding data packet is out of order. Other embodiments have been claimed and described. | 12-03-2015 |
20150365429 | METHOD AND AN APPARATUS TO PERFORM MULTI-CONNECTION TRAFFIC ANALYSIS AND MANAGEMENT - A method and an apparatus to perform multi-connection traffic analysis and management are described. In one embodiment, the method includes analyzing data packets in the first data flow of a client application for a pattern of interest, where the client application communicates data using first and second data flows. In response to the method detecting a pattern of interest in the first data flow, the method identifies the second data flow and identifies a traffic policy for the second data flow. The method applies the identified traffic policy to the second data flow. Other embodiments have been claimed and described. | 12-17-2015 |
20160050216 | CLOUD-BASED GATEWAY SECURITY SCANNING - Some embodiments of cloud-based gateway security scanning have been presented. In one embodiment, some data packets are received sequentially at a gateway device. The data packets constitute at least a part of a file being addressed to a client machine coupled to the gateway device. The gateway device forwards an identification of the file to a remote datacenter in parallel with forwarding the data packets to the client machine. The datacenter performs signature matching on the identification and returns a result of the signature matching to the gateway device. The gateway device determining whether to block the file from the client machine based on the result of the signature matching from the datacenter. | 02-18-2016 |
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 |
20120011668 | 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. | 01-19-2012 |
20120011669 | 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. | 01-19-2012 |
20120084937 | 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. | 04-12-2012 |
20120159725 | Cleaning Robot Roller Processing - A coverage robot includes a chassis, a drive system, and a cleaning assembly. The cleaning assembly includes a housing and at least one driven cleaning roller including an elongated core with end mounting features defining a central longitudinal axis of rotation, multiple floor cleaning bristles extending radially outward from the core, and at least one compliant flap extending radially outward from the core to sweep a floor surface. The flap is configured to prevent errant filaments from spooling tightly about the core to aid subsequent removal of the filaments. In another aspect, a coverage robot includes a chassis, a drive system, a controller, and a cleaning assembly. The cleaning assembly includes a housing and at least one driven cleaning roller. The coverage robot includes a roller cleaning tool carried by the chassis and configured to longitudinally traverse the roller to remove accumulated debris from the cleaning roller. | 06-28-2012 |
20130117952 | 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. | 05-16-2013 |
20130205520 | CLEANING ROBOT ROLLER PROCESSING - A coverage robot includes a chassis, a drive system, and a cleaning assembly. The cleaning assembly includes a housing and at least one driven cleaning roller including an elongated core with end mounting features defining a central longitudinal axis of rotation, multiple floor cleaning bristles extending radially outward from the core, and at least one compliant flap extending radially outward from the core to sweep a floor surface. The flap is configured to prevent errant filaments from spooling tightly about the core to aid subsequent removal of the filaments. In another aspect, a coverage robot includes a chassis, a drive system, a controller, and a cleaning assembly. The cleaning assembly includes a housing and at least one driven cleaning roller. The coverage robot includes a roller cleaning tool carried by the chassis and configured to longitudinally traverse the roller to remove accumulated debris from the cleaning roller. | 08-15-2013 |
20140026354 | 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. | 01-30-2014 |
20140053351 | CLEANING ROBOT ROLLER PROCESSING - A coverage robot includes a chassis, a drive system, and a cleaning assembly. The cleaning assembly includes a housing and at least one driven cleaning roller including an elongated core with end mounting features defining a central longitudinal axis of rotation, multiple floor cleaning bristles extending radially outward from the core, and at least one compliant flap extending radially outward from the core to sweep a floor surface. The flap is configured to prevent errant filaments from spooling tightly about the core to aid subsequent removal of the filaments. In another aspect, a coverage robot includes a chassis, a drive system, a controller, and a cleaning assembly. The cleaning assembly includes a housing and at least one driven cleaning roller. The coverage robot includes a roller cleaning tool carried by the chassis and configured to longitudinally traverse the roller to remove accumulated debris from the cleaning roller. | 02-27-2014 |
20140095008 | Lawn Care Robot - A robot lawnmower includes a body and a drive system carried by the body and configured to maneuver the robot across a lawn. The robot also includes a grass cutter and a swath edge detector, both carried by the body. The swath edge detector is configured to detect a swath edge between cut and uncut grass while the drive system maneuvers the robot across the lawn while following a detected swath edge. The swath edge detector includes a calibrator that monitors uncut grass for calibration of the swath edge detector. In some examples, the calibrator comprises a second swath edge detector. | 04-03-2014 |
20140102061 | Lawn Care Robot - A robot lawnmower includes a body and a drive system carried by the body and configured to maneuver the robot across a lawn. The robot also includes a grass cutter and a swath edge detector, both carried by the body. The swath edge detector is configured to detect a swath edge between cut and uncut grass while the drive system maneuvers the robot across the lawn while following a detected swath edge. The swath edge detector includes a calibrator that monitors uncut grass for calibration of the swath edge detector. In some examples, the calibrator comprises a second swath edge detector. | 04-17-2014 |
20140102062 | Lawn Care Robot - A robot lawnmower includes a body and a drive system carried by the body and configured to maneuver the robot across a lawn. The robot also includes a grass cutter and a swath edge detector, both carried by the body. The swath edge detector is configured to detect a swath edge between cut and uncut grass while the drive system maneuvers the robot across the lawn while following a detected swath edge. The swath edge detector includes a calibrator that monitors uncut grass for calibration of the swath edge detector. In some examples, the calibrator comprises a second swath edge detector. | 04-17-2014 |
20140109339 | 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. | 04-24-2014 |
20140130272 | 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. | 05-15-2014 |
20140352103 | 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. | 12-04-2014 |
20150020326 | 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. | 01-22-2015 |
20150234385 | Lawn Care Robot - A robot lawnmower includes a body and a drive system carried by the body and configured to maneuver the robot across a lawn. The robot also includes a grass cutter and a swath edge detector, both carried by the body. The swath edge detector is configured to detect a swath edge between cut and uncut grass while the drive system maneuvers the robot across the lawn while following a detected swath edge. The swath edge detector includes a calibrator that monitors uncut grass for calibration of the swath edge detector. In some examples, the calibrator comprises a second swath edge detector. | 08-20-2015 |
20160023357 | REMOTE CONTROL SCHEDULER AND METHOD FOR AUTONOMOUS ROBOTIC DEVICE - A method of scheduling a robotic device enables the device to run autonomously based on previously loaded scheduling information. The method consists of a communication device, such as a hand-held remote device, that can directly control the robotic device, or load scheduling information into the robotic device such that it will carry out a defined task at the desired time without the need for further external control. The communication device can also be configured to load a scheduling application program into an existing robotic device, such that the robotic device can receive and implement scheduling information from a user. | 01-28-2016 |