Patents by Inventor Jim Brown

Jim Brown has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7348824
    Abstract: An auto-zero circuit is disclosed. The auto-zero circuit includes a first set of circuits for implementing a first auto-zero phase and a second set of circuits for implementing a second auto-zero phase. The first set of circuits includes a first differential amplifier and a first feedback path coupled between an output of the first differential amplifier and an input of the first differential amplifier. The second set of circuits includes a second differential amplifier and a second feedback path coupled between an output of the second differential amplifier and an input of the first differential amplifier, where the second feedback path includes an attenuation capacitor for reducing charge injection error and noise error of the auto-zero circuit and a holding capacitor for holding a voltage to be used to correct charge injection error introduced by the first feedback path.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: March 25, 2008
    Assignee: Cadence Design Systems, Inc.
    Inventors: Eric Naviasky, Jim Brown
  • Publication number: 20070185473
    Abstract: The present invention provides a catheter for use in delivering formulation that allows modification of the formulation prior to or concomitant with its transport or at a delivery site. The catheter comprises an elongate body, which defines an inner lumen extending between the proximal and distal ends, and a modifying element, which provides for modification of one or more components of a formulation prior to or concomitant with release at the delivery site.
    Type: Application
    Filed: March 29, 2007
    Publication date: August 9, 2007
    Inventors: Tai Chan, Tim Nelson, Jim Brown
  • Patent number: 7250043
    Abstract: The present invention provides a catheter for use in delivering formulation that allows modification of the formulation prior to or concomitant with its transport or at a delivery site. The catheter comprises an elongate body, which defines an inner lumen extending between the proximal and distal ends, and a modifying element, which provides for modification of one or more components of a formulation prior to or concomitant with release at the delivery site.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: July 31, 2007
    Assignee: Durect Corporation
    Inventors: Tai Wah Chan, Tim Nelson, Jim Brown
  • Publication number: 20060197574
    Abstract: An auto-zero circuit is disclosed. The auto-zero circuit includes a first set of circuits for implementing a first auto-zero phase and a second set of circuits for implementing a second auto-zero phase. The first set of circuits includes a first differential amplifier and a first feedback path coupled between an output of the first differential amplifier and an input of the first differential amplifier. The second set of circuits includes a second differential amplifier and a second feedback path coupled between an output of the second differential amplifier and an input of the first differential amplifier, where the second feedback path includes an attenuation capacitor for reducing charge injection error and noise error of the auto-zero circuit and a holding capacitor for holding a voltage to be used to correct charge injection error introduced by the first feedback path.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 7, 2006
    Inventors: Eric Naviasky, Jim Brown
  • Publication number: 20060013347
    Abstract: Synchronizing a Radio Network with End User Radio Terminals A Mobile Station that is able to receive GPS signals and compare the frequency of the GPS received time signal with a time signal from a network in order to determine the difference between the signals and communicate that difference back to the network.
    Type: Application
    Filed: August 16, 2005
    Publication date: January 19, 2006
    Inventors: Jim Brown, Gengsheng Zhang, Lionel Garin
  • Publication number: 20050286498
    Abstract: A system and method for providing a voice communication service between a first user and a second user after the first user and the second user are communicating via a non-voice communication service is described. The non-voice communication service may be processed through a server in communication with the first and second users. The non-voice communication service is monitored for a voice service request, and upon receipt of the voice service request, establishment of a voice communication service is initiated between the first and second users through the server. The first and second users may be anonymous to each other over the non-voice communication service and the voice communication service.
    Type: Application
    Filed: May 27, 2005
    Publication date: December 29, 2005
    Inventors: Tom Rand, Anthony Knight, Jim Brown, John Blair, Chris Smith, Evan Wright
  • Publication number: 20040193113
    Abstract: The present invention is a trocar/cannula assembly that is capable of delivering large-diameter objects/fluids into a body cavity interior, while minimizing the puncture footprint left after insertion. Generally, the invention could be a composite needle having a composite wall forming a trocar shaft with at least two rigid elements, and flexible material therebetween, which together at least partially define a trocar bore having a diameter, and a puncture tip. Together these elements enable the composite wall to flex outward so as to increase the diameter of the trocar bore. Additionally, the present invention could also be described as an expandable bore trocar/cannula that is made up of an expandable cannula body having an interior channel that is capable of flexing radially outward, and a trocar tip associated with the cannula body to facilitate the insertion of the trocar/cannula into a patient.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 30, 2004
    Applicant: DURECT CORPORATION
    Inventors: Edward M. Gillis, James Filice, Jim Brown, Andrew Ivan Poutiatine, Charles Rampersaud, Danny Argonza
  • Publication number: 20040068251
    Abstract: The present invention provides a catheter for use in delivering formulation that allows modification of the formulation prior to or concomitant with its transport or at a delivery site. The catheter comprises an elongate body, which defines an inner lumen extending between the proximal and distal ends, and a modifying element, which provides for modification of one or more components of a formulation prior to or concomitant with release at the delivery site.
    Type: Application
    Filed: October 7, 2003
    Publication date: April 8, 2004
    Applicant: Durect Corporation
    Inventors: Tai Wah Chan, Tim Nelson, Jim Brown
  • Patent number: 6629969
    Abstract: The present invention provides a catheter for use in delivering formulation that allows modification of the formulation prior to or concomitant with its transport or at a delivery site. The catheter comprises an elongate body, which defines an inner lumen extending between the proximal and distal ends, and a modifying element, which provides for modification of one or more components of a formulation prior to or concomitant with release at the delivery site.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: October 7, 2003
    Assignee: Durect Corporation
    Inventors: Tai Wah Chan, Tim Nelson, Jim Brown
  • Publication number: 20030028174
    Abstract: The present invention provides a catheter for use in delivering formulation that allows modification of the formulation prior to or concomitant with its transport or at a delivery site. The catheter comprises an elongate body, which defines an inner lumen extending between the proximal and distal ends, and a modifying element, which provides for modification of one or more components of a formulation prior to or concomitant with release at the delivery site.
    Type: Application
    Filed: July 26, 2001
    Publication date: February 6, 2003
    Inventors: Tai Wah Chan, Tim Nelson, Jim Brown
  • Patent number: 6432428
    Abstract: Disclosed are dry-feel emollient compositions comprising fatty alcohols, alkyl esters and jojoba wax esters obtained by a novel process of a base catalyzed alcoholysis reaction between jojoba oil and an alcohol, such as isopropyl alcohol. The composition is essentially solid at room temperature, can be provided in various shapes and sizes (especially as particulates such as spheres). These new compositions increase the range of applications for cosmetic compositions by providing an emollient that is more polar and hydrophilic than is found in naturally occurring jojoba oils (jojoba wax esters). These compositions have use in personal care, cosmetic, cosemceutical and pharmaceutical products.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: August 13, 2002
    Assignee: International Flora Technologies
    Inventors: Demetrios James G. Arquette, Jim Brown, John Reinhardt
  • Patent number: 6280746
    Abstract: The present invention are dry-feel emollient compositions comprising jojoba oil based esters that have use in personal care, cosmetic, cosmaceutical and pharmaceutical products. These compositions are essentially solid at room temperature, can be provided in various shapes and sizes (especially as particulates such as spheres), and can be produced from combinations of fatty alcohols, isopropyl esters and wax esters obtained from the oil contained in the seed of the jojoba plant. These new compositions also increase the range of applications for cosmetic compositions through an emollient that is more polar and hydrophilic than is found in jojoba oils. The compositions of the present invention may be obtained by a novel process of a base catalyzed alcoholysis reaction between jojoba oil and an alcohol, such as isopropyl alcohol.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: August 28, 2001
    Assignee: International Flora Technologies Ltd.
    Inventors: Demetrios James G. Arquette, Jim Brown, John Reinhardt
  • Patent number: 5147020
    Abstract: A conveyor roller brake that is preferably carried within the confines of a conveyor roller and includes a friction surface carried by the conveyor roller and a brake shoe that is maintained continuously in biased engagement with the friction surface and is selectively engageable for disengageable with respect to a nonrotatable hub element thereby selectively permitting the brake shoe to rotate freely with the conveyor roller in frictional engagement with the friction surface, or to be arrested in its rotation so that relative rotation of the roller with respect thereto provides continuous roller braking through frictional sliding of the brake shoe in biased engagement with the friction surface.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: September 15, 1992
    Assignee: Lucas Western Inc.
    Inventors: Dale Scherman, Jim Brown, Gary Carpenter