Patents by Inventor Duane Green
Duane Green 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: 10848187Abstract: Disclosed herein are wireless transceivers with switches to reduce harmonic leakage. The devices are configured to transmit and receive signals in a first frequency band and a second frequency band. The devices selectively decouple a power amplifier from a duplexer to reduce harmonic leakage into a receiving system. The decoupling is accomplished using a switch, the switch being operated responsive to a band select signal indicating the second frequency band as a receive band but not a transmission band and the first frequency band as a transmission band where the first frequency band has at least one harmonic that lies within a downlink sub-band of the second frequency band.Type: GrantFiled: May 7, 2019Date of Patent: November 24, 2020Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Philip H. Thompson, Steven T. Seiz, Roman Zbigniew Arkiszewski, Matthew Lee Banowetz, Duane A. Green
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Patent number: 10764075Abstract: Aspects of the present disclosure involve systems, methods, computer program products, and the like, for implementing providing a web conferencing service. In one example, the system and methods involve a real-time application programming interface (RTAPI) component in the telecommunications network. The RTAPI is configured, in one embodiment, to provide a platform through which one or more users of the telecommunications network interfaces with one or more conferencing components of the network. In one example, the RTAPI may be configured to coordinate a dial-out to a participant of a conference at a designated time such that the participant is entered into the conference automatically.Type: GrantFiled: April 3, 2014Date of Patent: September 1, 2020Assignee: Level 3 Communications, LLCInventors: Adam Charles Uzelac, Joshua Scott Berlin, Michael Dana Chan, Darren James Behmlander, Gregory Thomas Ellison, Duane Green
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Publication number: 20190334561Abstract: Disclosed herein are wireless transceivers with switches to reduce harmonic leakage. The devices are configured to transmit and receive signals in a first frequency band and a second frequency band. The devices selectively decouple a power amplifier from a duplexer to reduce harmonic leakage into a receiving system. The decoupling is accomplished using a switch, the switch being operated responsive to a band select signal indicating the second frequency band as a receive band but not a transmission band and the first frequency band as a transmission band where the first frequency band has at least one harmonic that lies within a downlink sub-band of the second frequency band.Type: ApplicationFiled: May 7, 2019Publication date: October 31, 2019Inventors: Philip H. Thompson, Steven T. Seiz, Roman Zbigniew Arkiszewski, Matthew Lee Banowetz, Duane A. Green
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Patent number: 10284235Abstract: Disclosed herein are wireless transceivers with switches to reduce harmonic leakage. In some embodiments, a transmitter system includes a power amplification system including a first power amplifier configured to amplify a signal at a first cellular frequency band and a second power amplifier configured to amplify a signal at a second cellular frequency band. The transmitter includes a switch coupled between an output of the second power amplifier and a ground potential. The transmitter includes a controller configured to, based on a band select signal, control the switch and selectively enable or disable each of the first power amplifier and the second power amplifier. Selective control of the switch can reduce harmonic leakage compared to a system that does not include the disclosed switches and controls.Type: GrantFiled: July 20, 2016Date of Patent: May 7, 2019Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Philip H. Thompson, Steven T. Seiz, Roman Zbigniew Arkiszewski, Matthew Lee Banowetz, Duane A. Green
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Publication number: 20170026136Abstract: Disclosed herein are wireless transceivers with switches to reduce harmonic leakage. In some embodiments, a transmitter system includes a power amplification system including a first power amplifier configured to amplify a signal at a first cellular frequency band and a second power amplifier configured to amplify a signal at a second cellular frequency band. The transmitter includes a switch coupled between an output of the second power amplifier and a ground potential. The transmitter includes a controller configured to, based on a band select signal, control the switch and selectively enable or disable each of the first power amplifier and the second power amplifier. Selective control of the switch can reduce harmonic leakage compared to a system that does not include the disclosed switches and controls.Type: ApplicationFiled: July 20, 2016Publication date: January 26, 2017Inventors: Philip H. Thompson, Steven T. Seiz, Roman Zbigniew Arkiszewski, Matthew Lee Banowetz, Duane A. Green
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Patent number: 8874053Abstract: Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.Type: GrantFiled: November 26, 2013Date of Patent: October 28, 2014Assignee: Skyworks Solutions, Inc.Inventors: Hui Liu, Duane A. Green, David Anthony Sawatzky
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Publication number: 20140128013Abstract: Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.Type: ApplicationFiled: November 26, 2013Publication date: May 8, 2014Applicant: SKYWORKS SOLUTIONS, INC.Inventors: Hui Liu, Duane A. Green, David Anthony Sawatzky
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Patent number: 8688061Abstract: A system and method for biasing a power amplifier includes a power amplifier having a driver stage and an output stage, the driver stage having a plurality of driver devices, a bias current source configured to deliver a bias current to each of the plurality of driver devices, and a current directing element configured to receive the bias current and selectively bias each of the plurality of driver devices based on a reference voltage and a system voltage.Type: GrantFiled: August 9, 2010Date of Patent: April 1, 2014Assignee: Skyworks Solutions, Inc.Inventors: Duane A. Green, Weiwei Shu, David Sawatzky
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Patent number: 8626092Abstract: Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.Type: GrantFiled: July 26, 2012Date of Patent: January 7, 2014Assignee: Skyworks Solutions, Inc.Inventors: Hui Liu, Duane A. Green, David Anthony Sawatzky
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Publication number: 20140005055Abstract: Advances in sequencing technologies have dramatically reduced costs in producing high quality draft genomes. There are still many contigs and possible misassembled regions in those draft genomes. Described herein are methods for improving the quality of sequencing techniques, and particularly methods for overcoming the loading bias inherent in, for instance, the PacBio sequencing process. Compared to Sanger sequencing technology, the herein described method is not only cost-effective but also can close gaps greater than 2.5 Kb in a single round of reactions. It can also sequence through high GC regions and difficult secondary structures such as hairpin loops.Type: ApplicationFiled: June 28, 2013Publication date: January 2, 2014Inventors: Xiaojing Zhang, Karen Walston Davenport, Lance Duane Green, Shunsheng Han
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Publication number: 20130029620Abstract: Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.Type: ApplicationFiled: July 26, 2012Publication date: January 31, 2013Applicant: SKYWORKS SOLUTIONS, INC.Inventors: Hui Liu, Duane A. Green, David Anthony Sawatzky
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Publication number: 20120034956Abstract: A system and method for biasing a power amplifier includes a power amplifier having a driver stage and an output stage, the driver stage having a plurality of driver devices, a bias current source configured to deliver a bias current to each of the plurality of driver devices, and a current directing element configured to receive the bias current and selectively bias each of the plurality of driver devices based on a reference voltage and a system voltage.Type: ApplicationFiled: August 9, 2010Publication date: February 9, 2012Applicant: SKYWORKS SOLUTIONS, INC.Inventors: Duane A. Green, Weiwei Shu, David Sawatzky
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Patent number: 7881713Abstract: The present invention provides for a system and method of wirelessly triggering portable devices to provide a user with audio and/or visual information related to a show or attraction, for example, or for the purposes of captioning, language translation, assistive listening, and descriptive audio. As a person moves about a venue, a portable device receives signals from transmitters at venue locations. Transmissions may be via infrared or radio signals. The receiving device decodes each signal as a venue location, event time, or device trigger. The receiving device processes the signal and its memory to start a presentation on the device. The portable device memory contains audio, text, graphics, and/or visual content; device playback may contain one or many of these stored contents. The stored content may be synchronized with the user's location, time of travel, time of day, time of a show, or an event in a show. Stored content may be in one or many languages.Type: GrantFiled: February 26, 2007Date of Patent: February 1, 2011Assignee: Disney Enterprises, Inc.Inventors: Gregory Brooks Hale, Reynold Duane Green, Harold Andrew McLaughlin, William George Wiedefeld, Phu Van Nguyen
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Patent number: 7224967Abstract: The present invention provides for a system and method of wirelessly triggering portable devices to provide a user with audio and/or visual information related to a show or attraction, for example, or for the purposes of captioning, language translation, assistive listening, and descriptive audio. As a person moves about a venue, a portable device receives signals from transmitters at venue locations. Transmissions may be via infrared or radio signals. The receiving device decodes each signal as a venue location, event time, or device trigger. The receiving device processes the signal and its memory to start a presentation on the device. The portable device memory contains audio, text, graphics, and/or visual content; device playback may contain one or many of these stored contents. The stored content may be synchronized with the user's location, time of travel, time of day, time of a show, or an event in a show. Stored content may be in one or many languages.Type: GrantFiled: July 21, 2004Date of Patent: May 29, 2007Assignee: Disney Enterprises, Inc.Inventors: Gregory Brooks Hale, Reynold Duane Green, Harold Andrew McLaughlin, William George Wiedefeld, Phu Van Nguyen
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Patent number: 6785539Abstract: The present invention provides for a system and method of wirelessly triggering portable devices to provide a user with audio and/or visual information related to a show or attraction, for example, or for the purposes of captioning, language translation, assistive listening, and descriptive audio. As a person moves about a venue, a portable device receives signals from transmitters at venue locations. Transmissions may be via infrared or radio signals. The receiving device decodes each signal as a venue location, event time, or device trigger. The receiving device processes the signal and its memory to start a presentation on the device. The portable device memory contains audio, text, graphics, and/or visual content; device playback may contain one or many of these stored contents. The stored content may be synchronized with the user's location, time of travel, time of day, time of a show, or an event in a show. Stored content may be in one or many languages.Type: GrantFiled: December 5, 2002Date of Patent: August 31, 2004Assignee: Disney Enterprises, Inc.Inventors: Gregory B. Hale, Reynold Duane Green, William G. Wiedefeld, Harold Andrew McLaughlin
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Publication number: 20030104824Abstract: The present invention provides for a system and method of wirelessly triggering portable devices to provide a user with audio and/or visual information related to a show or attraction, for example, or for the purposes of captioning, language translation, assistive listening, and descriptive audio. As a person moves about a venue, a portable device receives signals from transmitters at venue locations. Transmissions may be via infrared or radio signals. The receiving device decodes each signal as a venue location, event time, or device trigger. The receiving device processes the signal and its memory to start a presentation on the device. The portable device memory contains audio, text, graphics, and/or visual content; device playback may contain one or many of these stored contents. The stored content may be synchronized with the user's location, time of travel, time of day, time of a show, or an event in a show. Stored content may be in one or many languages.Type: ApplicationFiled: December 5, 2002Publication date: June 5, 2003Applicant: Walt Disney Parks and ResortsInventors: Gregory B. Hale, Reynold Duane Green, William G. Wiedefeld, Harold Andrew McLaughlin
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Patent number: 5921201Abstract: A squirrel-proof bird feeder is provided including a housing having a cut out formed therein for defining a ledge and allowing access to the interior space. A squirrel guard is provided including a pivot frame residing within a single plane and defined by a pair of linear elongated side bars. At least one dowel is coupled between first ends of the side bars. A weighted bar is coupled between second ends of the side bars and has a weight less than that of an average squirrel. A center of each side bar is pivotally coupled to a central extent of opposite sides of a side wall of the housing. By this structure, the dowels remain level with the bottom face of the housing only when supporting an animal with a weight less than that of the average squirrel. The squirrel guard further includes at least one stanchion each coupled to an associated one of the side bars and a cover plate. The cover plate is coupled to the stanchion such that it resides above the pivot frame.Type: GrantFiled: February 19, 1998Date of Patent: July 13, 1999Inventor: Duane Green