Patents by Inventor Joshua Duffy
Joshua Duffy 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: 11418047Abstract: A method for charging a rechargeable battery comprises estimating an initial state of charge of the battery (SOC0), which may be estimated based on a time to polarization or an initial voltage of the battery. The method also comprises charging the battery according to a first charging strategy if the initial state of charge (SOC0) is greater than a threshold state of charge (SOCX) and according to a second charging strategy if the initial state of charge (SOC0) is less than the threshold state of charge (SOCX). The first charging strategy comprises charging, by charging circuitry, the battery at a temperature-independent constant charge voltage (CVXT) and at a first current (I1) with power provided from a power source in electrical communication with the charging circuitry.Type: GrantFiled: June 4, 2018Date of Patent: August 16, 2022Assignee: RIOT ENERGY, INC.Inventors: Joshua Duffy, Matthew Fleenor, Reza Pourdarvish, Timothy W. Powers
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Publication number: 20200177011Abstract: A method for charging a rechargeable battery comprises estimating an initial state of charge of the battery (SOC0), which may be estimated based on a time to polarization or an initial voltage of the battery. The method also comprises charging the battery according to a first charging strategy if the initial state of charge (SOC0) is greater than a threshold state of charge (SOCX) and according to a second charging strategy if the initial state of charge (SOC0) is less than the threshold state of charge (SOCX). The first charging strategy comprises charging, by charging circuitry, the battery at a temperature-independent constant charge voltage (CVXT) and at a first current (I1) with power provided from a power source in electrical communication with the charging circuitry.Type: ApplicationFiled: June 4, 2018Publication date: June 4, 2020Inventors: Joshua Duffy, Matthew Fleenor, Reza Pourdarvish, Timothy W. Powers
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Publication number: 20140218380Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: ApplicationFiled: April 9, 2014Publication date: August 7, 2014Applicant: SEIKO EPSON CORPORATIONInventors: David Elliott SLOBODIN, Rob HOEYE, Jorell A. OLSON, Paul LONG, Marques Ronald GIRARDELLI, Joshua DUFFY
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Patent number: 8740389Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: GrantFiled: April 18, 2013Date of Patent: June 3, 2014Assignee: Seiko Epson CorporationInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Publication number: 20130229424Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: ApplicationFiled: April 18, 2013Publication date: September 5, 2013Applicant: Seiko Epson CorporationInventors: David Elliott Slobodin, Rob Moeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Patent number: 8449117Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: GrantFiled: June 15, 2012Date of Patent: May 28, 2013Assignee: Seiko Epson CorporationInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Publication number: 20120257115Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: ApplicationFiled: June 15, 2012Publication date: October 11, 2012Applicant: Seiko Epson CorporationInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Patent number: 8226240Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: GrantFiled: April 8, 2011Date of Patent: July 24, 2012Assignee: Seiko Epson CorporationInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Publication number: 20110181612Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: ApplicationFiled: April 8, 2011Publication date: July 28, 2011Applicant: SEIKO EPSON CORPORATIONInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Patent number: 7934834Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: GrantFiled: June 18, 2010Date of Patent: May 3, 2011Assignee: Seiko Epson CorporationInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Patent number: 7905604Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: GrantFiled: February 20, 2007Date of Patent: March 15, 2011Assignee: Seiko Epson CorporationInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Publication number: 20100253592Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: ApplicationFiled: June 18, 2010Publication date: October 7, 2010Applicant: SEIKO EPSON CORPORATIONInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Publication number: 20070146642Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: ApplicationFiled: February 20, 2007Publication date: June 28, 2007Inventors: David Slobodin, Rob Hoeye, Jorell Olson, Paul Long, Marques Girardelli, Joshua Duffy
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Patent number: 7180475Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: GrantFiled: June 7, 2001Date of Patent: February 20, 2007Assignee: InFocus CorporationInventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
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Publication number: 20020196378Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.Type: ApplicationFiled: June 7, 2001Publication date: December 26, 2002Inventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy