Patents by Inventor Dennis Alexander
Dennis Alexander 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).
-
Publication number: 20190041896Abstract: A band-pass clock distribution circuit includes a clock tree circuit including at least one clock buffer circuit. The clock tree circuit may be configured to receive a first clock signal from a clock generator circuit and to generate a second clock signal based on the first clock signal. A band-pass filter may be configured to receive the second clock signal and to provide a third clock signal to one or more load circuits. The band-pass filter includes a filtering resonant network including a first inductor and a second inductor coupled to one another at a center tap. The filtering resonant network is configurable to resonate with a parasitic capacitance associated with the one or more load circuits. A portion of the band-pass filter is integrated with the clock tree circuit.Type: ApplicationFiled: February 17, 2017Publication date: February 7, 2019Inventors: Ark-Chew WONG, Richard Dennis ALEXANDER, Clifford N. DUONG
-
Publication number: 20190036541Abstract: A hybrid digital-to-analog converter (DAC) driver circuit includes a current-mode DAC driver, a voltage-mode DAC driver, and a combination circuit. The current-mode DAC driver may be configured to receive a first set of bits of a digital input signal and to generate a first analog signal. The voltage-mode DAC driver may be configured to receive a second set of bits of the digital input signal and to generate a second analog signal. The combination circuit may be configured to combine the first analog signal and the second analog signal and to generate an analog output signal. The DAC driver circuit may be terminated by adjusting resistor values of the voltage-mode DAC driver. The current-mode DAC driver and the voltage-mode DAC driver are differential drivers, and may be configured to operate with a single clock signal.Type: ApplicationFiled: March 30, 2017Publication date: January 31, 2019Inventors: Ark-Chew WONG, Richard Dennis ALEXANDER
-
Publication number: 20180321580Abstract: A camera-mounting, apparatus includes a mechanically stabilizing frame, a plurality of camera fastenings, each being suitable for receiving and fixing at least one camera. The camera fastenings are attached in a distributed manner around the frame and are oriented such that a total field of view of all the cameras is larger than a field of view of an individual camera. Each point of the total field of view lies in the field of view of at least two of the cameras. An interior of the frame includes a cavity for receiving a support, in particular the head of a person wearing the device or a small (approximately head-sized) vehicle or aircraft.Type: ApplicationFiled: November 7, 2016Publication date: November 8, 2018Inventor: Dennis Alexander Niewöhner
-
Publication number: 20180153390Abstract: A portable laparoscope is disclosed. In implementations, the portable laparoscope includes a housing and an elongated tube coupled to the housing. A lighting source and a camera are disposed proximate to an end of the elongated tube opposite the housing. The camera is configured to capture an image in a viewing area that is illuminated by light provided by the lighting source. The portable laparoscope includes an image display apparatus configured to display the images acquired by the camera and/or to transmit the images to a remote display device. The housing may be configured to hold and position an insufflator.Type: ApplicationFiled: February 1, 2018Publication date: June 7, 2018Inventors: Chandrakanth Are, Madhuri Are, Dennis Alexander
-
Publication number: 20160229343Abstract: An adjustable mirror (1) is provided with a mirror housing (1?) and a mirror foot (1?), coupled via a pivot (5) and a motor mirror adjustment device. The motor mirror adjustment device is provided with a housing (3) which includes a bearing part (3?); an electric motor (4); and a gear transmission for transmitting rotation of the electric motor to the pivot. The gear transmission is supported against the bearing part and includes drive elements such as gears and/or worms (6?) and/or worm gears (6), and an output gear (8) which is connected to the pivot. The gear transmission is provided with a resilient element (10) between one of the drive elements and the bearing part, or between the drive elements mutually, and is designed to generate a bias between the one of the drive elements and the bearing part.Type: ApplicationFiled: October 3, 2014Publication date: August 11, 2016Inventors: Sigrid Elizabeth van Leeuwen, Dennis Alexander Vervoorn, Marinus Roose, Marinus Jacobus Maria van Zuilen, Stefan Frits Brouwer
-
Publication number: 20130253368Abstract: A portable laparoscope is disclosed. In implementations, the portable laparoscope includes a housing and an elongated tube coupled to the housing. A lighting source and a camera are disposed proximate to an end of the elongated tube opposite the housing. The camera is configured to capture an image in a viewing area that is illuminated by light provided by the lighting source. The portable laparoscope includes an image display apparatus configured to display the images acquired by the camera and/or to transmit the images to a remote display device. The housing may be configured to hold and position an insufflator.Type: ApplicationFiled: December 8, 2011Publication date: September 26, 2013Inventors: Chandrakanth Are, Madhuri Are, Dennis Alexander
-
Publication number: 20070022936Abstract: A submersible vehicle object ejection control system stores a plurality of pump speed command profiles. Each pump speed command profile is based on vehicle depth, vehicle speed, type of object being ejected, maximum noise emission magnitude during object ejection, and object exit velocity. The system also receives data representative of current vehicle depth, current vehicle speed, and the type of object being ejected. In response to these data, the system retrieves one of the plurality of pump speed command profiles and supplies pump speed commands representative of the retrieved pump speed command profile.Type: ApplicationFiled: June 30, 2005Publication date: February 1, 2007Inventors: Calvin Potter, Dennis Alexander, Paul Wingett
-
Publication number: 20050109747Abstract: Disclosed are systems and methods for directing laser energy to surfaces of materials via elements which have sharp points, and for reducing the adverse effects of particles which become dislodged by scribing and laser machining of materials.Type: ApplicationFiled: October 20, 2004Publication date: May 26, 2005Inventor: Dennis Alexander
-
Publication number: 20050069561Abstract: A vaccine against Newcastle Disease contains one or more mutant immunogens of the NDW strain. The mutant immunogen lacks the antigenic binding site on the F glycoprotein which is recognized by the monoclonal antibody mAb 54. Reagent kits and assay methods help to distinguish vaccinated members of a poultry flock from those that may have been infected with wild-type Newcastle Disease virus.Type: ApplicationFiled: November 16, 2004Publication date: March 31, 2005Applicant: WyethInventors: Harmen Greerligs, Ian Brown, Dennis Alexander, Michael Collins
-
Publication number: 20040127911Abstract: A device for inserting a flexible intraocular lens into an eye including a tubular member and a plunger. The tubular member includes a staging area, a lumen, and an open distal end. The staging area supports the lens in an unstressed state prior to engagement by the plunger. In the unstressed state, the optic of the lens is suspended in a pocket to avoid any substantial contact with interior portions of the tubular member. The plunger includes a slot in its distal tip for receiving and gripping the lens. With this construction, the lens can be inserted into the eye in one continuous motion. Further, the plunger holds the lens when the lens is moved out of the tubular member.Type: ApplicationFiled: November 6, 2003Publication date: July 1, 2004Inventors: Dennis Alexander Figueroa, Alok Nigam, Thomas Michael Heyman, Henry W. Oviatt
-
Publication number: 20040113774Abstract: The present invention relates to an apparatus and method for a proximity warning system that is designed for use in warehouses, wharves, factories, and other industrial sites. The invention provides a proximity warning apparatus for use in warehouses, wharves and other industrial sites, comprising, a first transmitting and receiving means arranged to be mounted to a first body and to a second transmitting and receiving means arranged to be mounted to a second body, wherein the first and second bodies are movable relative to one another, so that they may come into proximity with one another and, wherein the first transmitting and receiving means is arranged to transmit a electromagnetic signal to the second transmitting and receiving means and vice versa, to provide an indication when the first and second bodies are in proximity to each other, or to provide an indication when the second and first bodies are in proximity to each other respectively.Type: ApplicationFiled: December 29, 2003Publication date: June 17, 2004Inventor: Dennis Alexander Wilson
-
Patent number: 6719121Abstract: A coin collecting cart for collecting coins from parking meters. A plurality of bins are used, each bin being limited to a certain quantity of coins which quantity of coins is electronically sensed. When the first of the bins is full of coins, the coins pass to the second of the bins and so on. When the bins are full, they are individually removable from the cart and mountable within a frame located remotely from the cart. The bins are unloaded by manually rotating the frame together with the bin about an axis.Type: GrantFiled: March 20, 2001Date of Patent: April 13, 2004Assignee: City of Vancouver and Cypress Solutions Inc.Inventors: Dennis Alexander, Gil Somerville, Bruce Larsen, Matthew Murnaghan
-
Patent number: 6685740Abstract: This invention is a device for inserting a flexible intraocular lens (12) into an eye comprising a tubular member (16) and a plunger (18). The tubular member includes a staging area (45), a lumen, and an open distal end (95). The staging area supports unstressed state prior to engagement by the plunger. In the unstressed state, the optic (48) of the lens is suspended in a pocket to avoid any substantial contact with interior portions of the tubular member. The plunger includes a slot (132) in its distal tip fo receiving and gripping the lens. With this construction, the lens can be inserted into the eye in one continuous motion. Further, the plunger holds the lens when the lens is moved out of the tubular member.Type: GrantFiled: October 17, 2001Date of Patent: February 3, 2004Assignee: Bausch & Lomb IncorporatedInventors: Dennis Alexander Figueroa, Alok Nigam, Thomas Michael Heyman, Henry W. Oviatt, Jr.
-
Publication number: 20020134645Abstract: A coin collecting cart for collecting coins from parking meters. A plurality of bins are used, each bin being limited to a certain quantity of coins which quantity of coins is electronically sensed. When the first of the bins is full of coins, the coins pass to the second of the bins and so on. When the bins are full, they are individually removable from the cart and mountable within a frame located remotely from the cart. The bins are unloaded by manually rotating the frame together with the bin about an axis.Type: ApplicationFiled: March 20, 2001Publication date: September 26, 2002Applicant: CITY OF VANCOUVER and CYPRESS SOLUTIONS INC.Inventors: Dennis Alexander, Gil Somerville, Bruce Larsen, Matthew Murnaghan
-
Publication number: 20020022881Abstract: This invention is a device for inserting a flexible intraocular lens (12) into an eye comprising a tubular member (16) and a plunger (18). The tubular member includes a staging area (45), a lumen, and an open distal end (95). The staging area support unstressed state prior to engagement by the plunger. In the unstressed state, the optic (48) of the lens is suspended in a pocket to avoid substantial contact with interior portions of the tubular member. The plunger includes a slot (132) in its distal tip fo receiving and gripping the lens. With this construction, the lens can be inserted into the eye in one continuous motion. Further, the plunger holds the lens when the lens is moved out of the tubular member.Type: ApplicationFiled: October 17, 2001Publication date: February 21, 2002Inventors: Dennis Alexander Figueroa, Alok Nigam, Thomas Michael Heyman, Henry W. Oviatt
-
Patent number: 6336932Abstract: An intraocular lens insertion device having a tubular member for receiving the lens and a plunger for pushing the lens into the eye. The lens is held in a suspended position by its haptics so that the optic portion of the lens does not contact the interior of the tubular member. The plunger tip is provided with a slot for holding the lens after it is expelled from the tubular member into the eye in order to alleviate the risks associated with uncontrolled unfolding of the lens or uncontrolled expulsion of the lens from the inserter into the eye.Type: GrantFiled: June 25, 1996Date of Patent: January 8, 2002Assignee: Bausch & Lomb Surgical, Inc.Inventors: Dennis Alexander Figueroa, Alok Nigam, Thomas Michael Heyman, Henry W. Oviatt, Jr.
-
Patent number: 6195971Abstract: A grass collector for receiving clippings discharged from a port at the rear of a mower housing. The collector is secured to a frame member which is pivotally connected to support members joined to the mower so as to be able to swing between a closed, clippings-receiving position adjacent the rear discharge port and an open, displaced position at which clippings can be dumped from the collector. The position of the collector is selectively controlled by the operator of the mower, and a spring arrangement is provided for retaining the collector in the selected position until over-ridden by the operator.Type: GrantFiled: September 29, 1998Date of Patent: March 6, 2001Assignee: Murray, Inc.Inventors: Lawrence W. Stewart, Stephen J. Vos, Laramie W. Mixon, Dennis A. Alexander, Robert R. Boyd
-
Patent number: 5960613Abstract: A lawn mower comprising a frame, an engine mounted on the frame, a cutting mechanism driven by the engine constructed and arranged to cut grass and to generate grass clippings, a bag for collecting said grass clippings, and a bag-full indicating assembly. The bag-full indicating assembly includes an indicator that indicates to a mower operator that the bag is substantially full in response to a bag-full signal, and a switch which can be activated to generate the bag-full signal. The switch comprises a grass-contacting member extending into the bag. The grass-contacting member is movable from a non-activated state to an activated state by being displaced by grass clipping build-up within the bag. The switch thereby enables the bag-full signal for the indicator so that the indicator indicates to the mower operator that the bag is substantially full.Type: GrantFiled: May 22, 1998Date of Patent: October 5, 1999Assignee: Murray, Inc.Inventors: Laramie Wayne Mixon, Dennis A Alexander
-
Patent number: 5873879Abstract: A device for inserting a flexible intraocular lens into an eye comprising a tubular member and a plunger. The tubular member includes a staging area, a lumen and an open distal end. The staging area supports the lens in an unstressed state prior to engagement by the plunger. In the unstressed state, the optic of the lens is suspended in a pocket to avoid any substantial contact with interior portions of the tubular member. The plunger includes a slot in its distal tip for receiving and gripping the lens. With this construction, the lens can be inserted into the eye in one continuous motion. Further, the plunger holds the lens when the lens is moved out of the tubular member.Type: GrantFiled: October 30, 1997Date of Patent: February 23, 1999Assignee: Chiron Vision CorporationInventors: Dennis Alexander Figueroa, Alok Nigam, Thomas Michael Heyman