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Dwork, CA

Cynthia Dwork, San Francisco, CA US

Patent application numberDescriptionPublished
20090193093REDUCING UNWANTED AND UNSOLICITED ELECTRONIC MESSAGES BY EXCHANGING ELECTRONIC MESSAGE TRANSMISSION POLICIES AND SOLVING AND VERIFYING SOLUTIONS TO COMPUTATIONAL PUZZLES - The present invention provides for generating inputs that can be provided to a message classification module to facilitate more reliable classification of electronic messages, such as, for example, as unwanted and/or unsolicited. In one embodiment, a sending messaging server provides an appropriate response to address verification data thereby indicating a reduced likelihood of the sending messaging server using a forged network address. In another embodiment, it is determined if a messaging server is authorized to send electronic messages for a domain. In yet another embodiment, electronic message transmission policies adhered to by a domain are identified. In yet a further embodiment, a sending computer system expends computational resources to solve a computational puzzle and includes an answer document in an electronic message. A receiving computer system receives the electronic message and verifies the answer document.07-30-2009
20110083013PRIVACY VAULT FOR MAINTAINING THE PRIVACY OF USER PROFILES - Methods, systems, and computer-readable media for facilitating personalization of web content is provided, while protecting the privacy of the user data utilized to personalize the user's experience. A privacy vault may collect user data including user activity data, demographic data, and user interests submitted by a user. In one embodiment, the privacy vault operates on a user client device. The privacy vault sends the user data to a community vault that collects user data from multiple users. The community vault generates segment rules that whether a user belongs to a user segment, which expresses a user's interest. The segment rules are then communicated back to the privacy vault, which assigns one or more user segments to the user based on the user data available to the privacy vault and the segment rules. The privacy vault may communicate user segments to one or more content providers that supply personalized content that is selected based on the user segments provided.04-07-2011

Patent applications by Cynthia Dwork, San Francisco, CA US

Jeffrey Dwork, San Jose, CA US

Patent application numberDescriptionPublished
20090037688Communicating between Partitions in a Statically Partitioned Multiprocessing System - In one embodiment, a method comprises assigning a unique node number to each of a first plurality of nodes in a first partition of a system and a second plurality of nodes in a second partition of the system. A first memory address space spans first memory included in the first partition and a second memory address space spans second memory included in the second partition. The first memory address space and the second memory address space are generally logically distinct. The method further comprises programming a first address map in the first partition to map the first memory address space to node numbers, wherein the programming comprises mapping a first memory address range within the first memory address space to a first node number assigned to a first node of the second plurality of nodes in the second partition, whereby the first memory address range is mapped to the second partition.02-05-2009
20100071055Two Parallel Engines for High Speed Transmit IPSEC Processing - The invention relates to a network interface system for interfacing a host system with a network. The network interface system includes a bus interface system, a media access control system, and a security system. The network interface offloads IPsec processing from the host processor. According to the invention, the security system includes two processors for encrypting and authenticating the outgoing data. Outgoing data packets are sent alternately to one or the other processor, whereby transmission processing can be accelerated relative to receive processing.03-18-2010

Patent applications by Jeffrey Dwork, San Jose, CA US

Joshua Dwork, Santa Rosa, CA US

Patent application numberDescriptionPublished
20080255651Telescoping Stability Sheath and Method of Use - A telescoping stability sheath and method of use, including a telescoping stability sheath for use with a stent delivery system having a delivery catheter and an introducer, the delivery catheter having a retractable sheath and a stability sheath stop axially slidable on the retractable sheath, the introducer having an introducer fitting slidably tightenable about the retractable sheath axially slidable within a sheath stop. The telescoping stability sheath includes a first segment slidably disposed about the retractable sheath, a second segment slidably disposed about the first segment, and a stability fitting attached to at least one of the first segment and the second segment. The stability fitting fixes a set length between the introducer fitting and the stability sheath stop when the stability fitting is engaged to lock the first segment to the second segment.10-16-2008
20110098804STENTED TRANSCATHETER PROSTHETIC HEART VALVE DELIVERY SYSTEM AND METHOD - A percutaneous stented valve delivery device including an inner shaft, a sheath, and a delivery capsule. The sheath slidably receives the inner shaft. A capsule proximal zone is attached to the sheath. A capsule distal zone is configured to transition between normal and flared states. A diameter of the distal zone is greater in the flared state, and the capsule includes a shape memory component that naturally assumes the normal state. The device is operable to perform a reversible partial deployment procedure in which a portion of the prosthesis is exposed distal the capsule and allowed to radially expand. Subsequently, with distal advancement of the capsule, the distal zone transitions to the flared state and imparts a collapsing force onto the prosthesis, causing the prosthesis to radially collapse and become recaptured within the delivery capsule. The capsule can include a laser cut tube encapsulated by a polymer.04-28-2011
20110098805TRANSCATHETER VALVE DELIVERY SYSTEMS AND METHODS - Delivery devices and methods for percutaneously delivering a prosthetic valve to the heart of a patient. These prosthetic valves may be configured to provide complimentary features that promote optimal placement of the prosthetic valve in a native heart valve, such as the aortic valve, mitral valve, pulmonic valve, and/or tricuspid valve. The delivery device includes a release sheath assembly housed within an outer delivery sheath. A release sheath component of the assembly captures a portion of the prosthetic valve to the delivery device, and effectuates complete release of the prosthetic valve with retraction of the outer sheath.04-28-2011
20110251675Transcatheter Prosthetic Heart Valve Delivery Device With Partial Deployment and Release Features and Methods - A delivery device for percutaneously deploying a stented prosthetic heart valve, including a delivery sheath, an inner shaft, and a spindle. The inner shaft is slidably disposed within a lumen of the delivery sheath. The spindle is attached to the shaft and includes a hub defining at least one longitudinal slot sized to slidably receive a post of the stented valve. An outer surface of the hub forms a curved proximal segment. The device provides a loaded state in which the delivery sheath retains the stented valve over the inner shaft and coupled to the spindle via the slot. In a deployed state, the distal end of the delivery sheath is withdrawn from the prosthesis to permit the stented valve to release from the slot, sliding along the curved outer surface of the hub.10-13-2011
20110257733Transcatheter Prosthetic Heart Valve Delivery System and Method with Expandable Stability Tube - A device for percutaneously delivering a stented prosthetic heart valve. The device includes an inner shaft assembly, a delivery sheath assembly, an outer stability tube, and a handle. The sheath assembly is slidably disposed over the inner shaft, and includes a capsule and a shaft. The capsule compressively contains the prosthesis over the inner shaft. The stability tube is slidably disposed over the delivery sheath, and includes a distal region configured to be radially expandable from a first shape having a first diameter to a second shape having a larger, second diameter. In a first delivery state, the distal region assumes the first shape, providing a low profile appropriate for traversing a patient's vasculature. In a second delivery state, the distal region has the expanded diameter second shape, sized to receive the capsule, such as when retracting the capsule to implant the prosthesis.10-20-2011
20110264203Transcatheter Prosthetic Heart Valve Delivery Device With Passive Trigger Release - A delivery device for percutaneously deploying a prosthetic valve includes a sheath, an inner shaft, and a release assembly. The release assembly is disposed between the sheath and the inner shaft, and includes a retraction member, a release member, and a retention member. The retraction member can self-retract in length from an extended condition to a retracted condition. The release member can self-expand from a compressed condition to an expanded condition. The retention member is distal the release member. In a delivery state, the sheath end is distal the retention member, the release member is in the compressed condition and the retraction member in the extended condition to retain the prosthesis. In a deployment state, the sheath end is positioned to permit the release member to self-transition to the expanded condition, allowing the retraction member to self-transition to the retracted condition and release the prosthesis.10-27-2011
20110282425Catheter Handle and Methods of Operating - A delivery system having an improved handle allowing operation of the delivery system with one hand while maintaining accuracy in delivery and deployment of a prosthesis in a body lumen. The delivery system includes a sheath and a handle. The handle includes a slide shaft having a threaded outer surface, and a hub assembly coupled to the sheath. The hub assembly includes an inner slider having a thread tooth pivot support, a thread tooth pivotably mounted to the thread tooth pivot support, a distal sleeve having a thread tooth press member pressing on the thread tooth, and a proximal sleeve. Motion of the distal sleeve relative to the inner slider pivots the thread tooth on the thread tooth pivot support to engage and disengage the hub assembly with the threaded outer surface. The distal sleeve is rotatably coupled to the proximal sleeve, and the proximal sleeve is prevented from rotating to provide a stable grip to allow operation of the catheter with one hand.11-17-2011
20120022628Attachment Mechanism for Stent Release - An attachment mechanism for coupling a stent to a delivery system is disclosed. The attachment mechanism is configured to pivot relative to an inner shaft assembly of the delivery system in order to release the stent from the delivery system.01-26-2012
20120103985SINGLE UNIT DISPENSING CAP - A cap for a container configured for dispensing single items, such as pills, held in said container. The cap channel extends from an upper surface to a lower end providing a passageway through the cap to allow for a predetermined quantity of items to be transferred through a port in an upper portion of the cap. The cap has a lid moveable from a closed position to an open position. In its closed position dispensing of items is prevented; in its open position at least one item is dispensed through the port. A gate is operable, in a first orientation to partially block the passageway and, in a second orientation, to unblock the passageway to allow a preset number of items, to pass through. Alternatively, a diverter is incorporated to control flow of the contents.05-03-2012

Patent applications by Joshua Dwork, Santa Rosa, CA US

Nicholas Dwork, Santa Clarita, CA US

Patent application numberDescriptionPublished
20100314534Refined optical system - Selected scene regions are imaged. I12-16-2010

Paul Dwork, Camarillo, CA US

Patent application numberDescriptionPublished
20120103985SINGLE UNIT DISPENSING CAP - A cap for a container configured for dispensing single items, such as pills, held in said container. The cap channel extends from an upper surface to a lower end providing a passageway through the cap to allow for a predetermined quantity of items to be transferred through a port in an upper portion of the cap. The cap has a lid moveable from a closed position to an open position. In its closed position dispensing of items is prevented; in its open position at least one item is dispensed through the port. A gate is operable, in a first orientation to partially block the passageway and, in a second orientation, to unblock the passageway to allow a preset number of items, to pass through. Alternatively, a diverter is incorporated to control flow of the contents.05-03-2012