Patents by Inventor Douglas Webb
Douglas Webb 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).
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Patent number: 11961061Abstract: A method for purchasing an item using a mobile device is provided. The method includes but is not limited to inputting identification information into the mobile device which identifies the item for purchase and generating an order for the item identified by the identification information. The method also includes but is not limited to displaying on a display of the mobile device an optical machine-readable representation of the order.Type: GrantFiled: July 3, 2023Date of Patent: April 16, 2024Assignee: Walmart Apollo, LLCInventors: David Martin Nelms, Jason Todd, Tim Webb, Philip Wayne Marbut, Douglas Jahe Ryner
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Patent number: 11889266Abstract: In one embodiment, the present invention is directed to a contact hearing system comprising: an ear tip including a transmit coil, wherein the transmit coil is connected to an audio processor, including an H Bridge circuit; a first input to the H Bridge circuit comprising an AND circuit wherein a first input to the AND circuit comprises a carrier signal and a second input to the AND circuit comprises an output of a delta sigma modulation circuit, wherein the delta sigma modulation circuit is a component of the audio processor; and a second input to the H Bridge circuit comprising an NAND circuit wherein a first input to the NAND circuit comprises a carrier signal and a second input to the NAND circuit comprises an output of the delta sigma modulation circuit.Type: GrantFiled: April 4, 2022Date of Patent: January 30, 2024Assignee: Earlens CorporationInventors: Lawrence W. Arne, Douglas Webb, Jeffrey Ward Tuttle, Konstadinos Hatzianestis
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Publication number: 20230052209Abstract: In one embodiment, the present invention is directed to a contact hearing system comprising: an ear tip including a transmit coil, wherein the transmit coil is connected to an audio processor, including an H Bridge circuit; a first input to the H Bridge circuit comprising an AND circuit wherein a first input to the AND circuit comprises a carrier signal and a second input to the AND circuit comprises an output of a delta sigma modulation circuit, wherein the delta sigma modulation circuit is a component of the audio processor; and a second input to the H Bridge circuit comprising an NAND circuit wherein a first input to the NAND circuit comprises a carrier signal and a second input to the NAND circuit comprises an output of the delta sigma modulation circuit.Type: ApplicationFiled: April 4, 2022Publication date: February 16, 2023Inventors: Lawrence W. Arne, Douglas Webb, Jeffrey Ward Tuttle, Konstadinos Hatzianestis
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Patent number: 11343617Abstract: In one embodiment, the present invention is directed to a contact hearing system comprising: an ear tip including a transmit coil, wherein the transmit coil is connected to an audio processor, including an H Bridge circuit; a first input to the H Bridge circuit comprising an AND circuit wherein a first input to the AND circuit comprises a carrier signal and a second input to the AND circuit comprises an output of a delta sigma modulation circuit, wherein the delta sigma modulation circuit is a component of the audio processor; and a second input to the H Bridge circuit comprising an NAND circuit wherein a first input to the NAND circuit comprises a carrier signal and a second input to the NAND circuit comprises an output of the delta sigma modulation circuit.Type: GrantFiled: January 27, 2021Date of Patent: May 24, 2022Assignee: Earlens CorporationInventors: Lawrence W. Arne, Douglas Webb, Jeffrey Ward Tuttle, Konstadinos Hatzianestis
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Publication number: 20210160631Abstract: In one embodiment, the present invention is directed to a contact hearing system comprising: an ear tip including a transmit coil, wherein the transmit coil is connected to an audio processor, including an H Bridge circuit; a first input to the H Bridge circuit comprising an AND circuit wherein a first input to the AND circuit comprises a carrier signal and a second input to the AND circuit comprises an output of a delta sigma modulation circuit, wherein the delta sigma modulation circuit is a component of the audio processor; and a second input to the H Bridge circuit comprising an NAND circuit wherein a first input to the NAND circuit comprises a carrier signal and a second input to the NAND circuit comprises an output of the delta sigma modulation circuit.Type: ApplicationFiled: January 27, 2021Publication date: May 27, 2021Inventors: Lawrence W. Arne, Douglas Webb, Jeffrey Ward Tuttle, Konstadinos Hatzianestis
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Patent number: 9724439Abstract: A sterilization cabinet for use in an autoclave. The sterilization cabinet includes one or more filtered vents permitting sterilization agent to enter and exit the interior space of the cabinet during a sterilization cycle. Each vent is occluded by a cover plate. The cover plate contains a latch configured to accept a rod extending from the center of the vent and engage a notch disposed thereon. The floor of the cabinet is shaped to direct the liquid contained within the cabinet to flow into the drain port disposed within the floor. The drain assembly is used to expel the liquid from the cabinet while preventing microbes and contaminants from entering the cabinet. The hinges connecting the door to the cabinet can be used to adjust an angle of inclination, a horizontal position, and a vertical position of the door.Type: GrantFiled: August 10, 2016Date of Patent: August 8, 2017Assignee: PMBS, LLCInventors: Alexis Douglas Webb, Jesus Manuel Pazos, Randel Scott Kristich
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Publication number: 20160346415Abstract: A sterilization cabinet for use in an autoclave. The sterilization cabinet includes one or more filtered vents permitting sterilization agent to enter and exit the interior space of the cabinet during a sterilization cycle. Each vent is occluded by a cover plate. The cover plate contains a latch configured to accept a rod extending from the center of the vent and engage a notch disposed thereon. The floor of the cabinet is shaped to direct the liquid contained within the cabinet to flow into the drain port disposed within the floor. The drain assembly is used to expel the liquid from the cabinet while preventing microbes and contaminants from entering the cabinet. The hinges connecting the door to the cabinet can be used to adjust an angle of inclination, a horizontal position, and a vertical position of the door.Type: ApplicationFiled: August 10, 2016Publication date: December 1, 2016Inventors: Alexis Douglas Webb, Jesus Manuel Pazos, Randel Scott Kristich
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Patent number: 9439992Abstract: A sterilization cabinet for use in an autoclave. The sterilization cabinet includes one or more filtered vents permitting sterilization agent to enter and exit the interior space of the cabinet during a sterilization cycle. Each vent is occluded by a cover plate. The cover plate contains a latch configured to accept a rod extending from the center of the vent and engage a notch disposed thereon. The floor of the cabinet is shaped to direct the liquid contained within the cabinet to flow into the drain port disposed within the floor. The drain assembly is used to expel the liquid from the cabinet while preventing microbes and contaminants from entering the cabinet. The hinges connecting the door to the cabinet can be used to adjust an angle of inclination, a horizontal position, and a vertical position of the door.Type: GrantFiled: September 22, 2015Date of Patent: September 13, 2016Assignee: Promedica, Inc.Inventors: Alexis Douglas Webb, Jesus Manuel Pazos, Randel Scott Kristich
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Patent number: 9268909Abstract: Provided is an apparatus, system, and method for stabilizing battery voltage of a battery device while optimizing power delivered to a receiver during communication of a broadcast packet. A logic circuit is configured to receive a broadcast packet having a predetermined number of bits for communication by a controller to a receiver located remotely from the controller, determine a number of cycles in which a sampled battery voltage is either greater than or less than or equal to a nominal battery voltage over a first subset of the predetermined number of bits of the broadcast packet and performs either a tune-up or a tune-down procedure based on the number of cycles counted in which the sampled battery voltage is not equal to the nominal battery voltage for more than one half of a total number of cycles counted.Type: GrantFiled: October 15, 2013Date of Patent: February 23, 2016Assignee: Proteus Digital Health, Inc.Inventors: Nilay Jani, Douglas Webb, Jonathan Withrington, Jeffrey Berkman, Haifeng Li
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Publication number: 20160008503Abstract: A sterilization cabinet for use in an autoclave. The sterilization cabinet includes one or more filtered vents permitting sterilization agent to enter and exit the interior space of the cabinet during a sterilization cycle. Each vent is occluded by a cover plate. The cover plate contains a latch configured to accept a rod extending from the center of the vent and engage a notch disposed thereon. The floor of the cabinet is shaped to direct the liquid contained within the cabinet to flow into the drain port disposed within the floor. The drain assembly is used to expel the liquid from the cabinet while preventing microbes and contaminants from entering the cabinet. The hinges connecting the door to the cabinet can be used to adjust an angle of inclination, a horizontal position, and a vertical position of the door.Type: ApplicationFiled: September 22, 2015Publication date: January 14, 2016Inventors: Alexis Douglas Webb, Jesus Manuel Pazos, Randel Scott Kristich
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Publication number: 20150294077Abstract: Provided is an apparatus, system, and method for stabilizing battery voltage of a battery device while optimizing power delivered to a receiver during communication of a broadcast packet. A logic circuit is configured to receive a broadcast packet having a predetermined number of bits for communication by a controller to a receiver located remotely from the controller, determine a number of cycles in which a sampled battery voltage is either greater than or less than or equal to a nominal battery voltage over a first subset of the predetermined number of bits of the broadcast packet and performs either a tune-up or a tune-down procedure based on the number of cycles counted in which the sampled battery voltage is not equal to the nominal battery voltage for more than one half of a total number of cycles counted.Type: ApplicationFiled: October 15, 2013Publication date: October 15, 2015Inventors: Nilay Jani, Douglas Webb, Jonathan Withrington, Jeffrey Berkman, Haifeng Li
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Publication number: 20130239309Abstract: The present invention relates to a rash guard shirt for a surfer or body boarder that provides relief from the discomfort and soreness experienced at the base of the rib cage where it contacts the board. The rash guard shirt is worn on the upper body of the user and consists of a main body portion and a padded portion. The padded portion is comprised of a pad or multiple pads oriented to cover the base of the rib cage, where it is in contact with a board while the surfer or body boarder is engaged in their respective activity.Type: ApplicationFiled: March 8, 2013Publication date: September 19, 2013Inventor: Mathew Douglas Webb
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Patent number: 7463403Abstract: A driver is provided for use with a MEMS device. Generally, the driver includes: (i) a high voltage circuit electrically coupled to a movable actuator of the MEMS to apply a HV pulse thereto; and (ii) a charge control circuit coupled to a base electrode formed in a substrate underlying the actuator to control a potential applied to the base electrode. The charge control circuit can include a capacitance divider having a plate capacitor defined by the actuator and the base electrode, and a charge storage capacitor electrically coupled to the base electrode and in series with the plate capacitor. The charge storage capacitor can include a variable, voltage controlled capacitor, the capacitance of which is controlled by an input signal or voltage to the driver. Other embodiments are also disclosed.Type: GrantFiled: April 22, 2006Date of Patent: December 9, 2008Assignee: Silicon Light Machines CorporationInventors: Stephen Gaalema, Douglas Webb, Alexander Payne, Josef Berger
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Patent number: 7405389Abstract: The present disclosure describes an optical displacement sensor having a dense multi-axis array of photosensitive elements. Generally, the sensor includes a two dimensional array of multiple photosensitive elements. In one embodiment, the array includes multiple linear arrays of photosensitive elements arranged along three or more axes in a space-filling, close-packed multi-axis array. The photosensitive elements are connected to each other in such a way that motion is determinable along each of the axes by measuring differential photocurrents between photosensitive elements along each of the axes. The inventive architecture advantageously increases signal redundancy, and reduces signal drop-out or low signals due to random fluctuations in the incident or absorbed light or in the signals from the photosensitive elements.Type: GrantFiled: November 15, 2005Date of Patent: July 29, 2008Assignee: Silicon Light Machines CorporationInventors: Michael J. Dueweke, Douglas A. Webb
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Patent number: 7250893Abstract: A signal processing circuit and processing method are provided for measuring an analog signal from a photo-detector. Generally, the method includes steps of: (i) sampling and storing a characteristic of the signal at a first predetermined time following a reset of the circuit; (ii) sampling the characteristic of the signal at a second predetermined time following a reset or initialization of the circuit; (iii) determining a difference between the stored characteristic of the signal sampled at the first predetermined time and the characteristic of the signal sampled at the second predetermined time; and (iv) converting the determined difference to a digital value and determining a slope of the signal from the digital value and the difference between the first and second predetermined times. Thus, the measurement of the slope is independent of and substantially unaffected by absolute values of the characteristics measured at the first and second predetermined times.Type: GrantFiled: November 12, 2005Date of Patent: July 31, 2007Assignee: Silicon Light Machines CorporationInventors: Brian D. Todoroff, Douglas A. Webb
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Patent number: 7247832Abstract: A signal processor and processing method are provided for measuring current received from a photo-detector. Generally, the processor includes a transimpedance amplifier (TIA) to integrate a current received from a photo-detector in the optical navigation system to generate a voltage signal having a slope that is proportional to the received current, and a comparator having a first input coupled to an output of the TIA to receive the voltage signal, and a second, inverting, input coupled to a threshold voltage. The comparator is configured to compare the voltage signal to the threshold voltage and to generate an output pulse having a predetermined voltage and a duration or width that is a function of the received current.Type: GrantFiled: September 9, 2005Date of Patent: July 24, 2007Assignee: Silicon Light Machines CorporationInventor: Douglas A. Webb
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Patent number: 7218336Abstract: A method of providing drive signals to an illuminator module having a plurality of channels in a printing application. Binary image data including image bits is provided from a data source to the illuminator module. Each image bit is converted to a multi-bit amplitude value within the illuminator module, wherein the conversion of each image bit to the multi-bit amplitude value depends at least on a value of the image bit and which channel is associated with the image bit. Pulse width modulation (PWM) may be applied to the drive signals using programmable transition delays. Apparatus for performing the aforementioned method are also disclosed.Type: GrantFiled: September 17, 2004Date of Patent: May 15, 2007Assignee: Silicon Light Machines CorporationInventors: David T. Amm, Douglas A. Webb, Gregory A. Myatt
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Publication number: 20070057165Abstract: A signal processor and processing method are provided for measuring current received from a photo-detector. Generally, the processor includes a transimpedance amplifier (TIA) to integrate a current received from a photo-detector in the optical navigation system to generate a voltage signal having a slope that is proportional to the received current, and a comparator having a first input coupled to an output of the TIA to receive the voltage signal, and a second, inverting, input coupled to a threshold voltage. The comparator is configured to compare the voltage signal to the threshold voltage and to generate an output pulse having a predetermined voltage and a duration or width that is a function of the received current.Type: ApplicationFiled: September 9, 2005Publication date: March 15, 2007Inventor: Douglas Webb
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Patent number: 7161518Abstract: In one embodiment, a micro electromechanical system (MEMS) driver circuit receives a pulse-width modulated (PWM) signal and uses it to control a voltage at a MEMS cell. The driver circuit further includes a current source, a capacitor, and a reset circuit that can discharge the capacitor. The voltage at the MEMS cell can be controlled in proportion to the pulse width of the PWM signal. In another embodiment disclosed, a MEMS driver circuit receives a first PWM signal and a second PWM signal. Each PWM signal is coupled to a current source. One current source can provide a course current control and the other current source can provide fine current control. The driver circuit can further include a capacitor and a reset circuit for discharging the capacitor. The voltage at the MEMS cell can be controlled in proportion to a summation of the first and second current sources. According to another aspect of the embodiments, a method of controlling a voltage at a MEMS cell is disclosed.Type: GrantFiled: March 26, 2004Date of Patent: January 9, 2007Assignee: Silicon Light Machines CorporationInventors: Douglas A. Webb, Stephen Gaalema
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Publication number: 20060261994Abstract: A signal processing circuit and processing method are provided for measuring an analog signal from a photo-detector. Generally, the method includes steps of: (i) sampling and storing a characteristic of the signal at a first predetermined time following a reset of the circuit; (ii) sampling the characteristic of the signal at a second predetermined time following a reset or initialization of the circuit; (iii) determining a difference between the stored characteristic of the signal sampled at the first predetermined time and the characteristic of the signal sampled at the second predetermined time; and (iv) converting the determined difference to a digital value and determining a slope of the signal from the digital value and the difference between the first and second predetermined times. Thus, the measurement of the slope is independent of and substantially unaffected by absolute values of the characteristics measured at the first and second predetermined times.Type: ApplicationFiled: November 12, 2005Publication date: November 23, 2006Inventors: Brian Todoroff, Douglas Webb