Patents by Inventor David Ely
David Ely 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: 9959286Abstract: In a directory service, a sync request requesting changes to a dataset is received from a sync client, the sync request comprising a token, and sync requests containing tokens are sent to first and second directory servers. Changes are returned by the directory servers with tokens, and the changes are returned to the sync client with a unified token. In embodiments, the changes returned to the sync client are new to the sync client. Also disclosed is a method where a request for new changes to a dataset is received from a sync client, the request including a token, and a response that contains a token and changes that are new to the sync client is returned.Type: GrantFiled: June 13, 2016Date of Patent: May 1, 2018Assignee: UNBOUNDID, LLCInventors: David Ely, Andrew Coulbeck, Trevor Thompson, James Snyder
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Patent number: 9410791Abstract: Position sensors to inductively sense a position of a target relative to a number of sensor coils are described. In one embodiment, the target comprises first, second, and third portions positioned on either side of an axis of rotation, such that lateral misalignment between the target and the sensors is compensated between the interaction of the different portions and the sensor coils. In another embodiment, the target comprises first and second portions that are separated along the measurement path such that in a first range of relative positions, the first portion is adjacent to the sensor coils and in a second range of relative positions, the second portion is adjacent to the sensor coils. The first and second portions are asymmetrically arranged relative to the sensor coils such that when each portion is adjacent the same portion of the sensor coils, different signals are induced in the sensor coils.Type: GrantFiled: December 21, 2011Date of Patent: August 9, 2016Assignee: Cambridge Integrated Circuits LimitedInventor: David Ely
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Patent number: 9367560Abstract: Disclosed are methods of synchronizing changes in a directory service, comprising receiving a sync request comprising a token from a sync client and returning a response to the sync client comprising a token and changes. Embodiments include collecting and returning changes that are new to the sync client, collecting and returning changes from first and second directory servers, and returning a unified token. The changes may include changes to a dataset that is partitioned over first and second directory servers, and the partitioning may include entry-balancing. Also disclosed are embodiments of a directory service comprising first and second directory servers, each comprising a change set with changes, and a proxy server configured to collect and send changes in the change sets that are new to a sync client, and proxy server and a directory server for use in synchronizing changes in a directory service.Type: GrantFiled: December 14, 2011Date of Patent: June 14, 2016Assignee: UNBOUNDID, CORP.Inventors: David Ely, Andrew Coulbeck, Trevor Thompson, James Synder
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Publication number: 20130257417Abstract: A number of position sensors are disclosed. The position sensors are arranged to inductively sense the position of a target relative to a number of sensor coils. In one embodiment, the target comprises first, second and third portions positioned on either side of an axis of rotation, such that lateral misalignment between the target and the sensor is compensated between the interaction of the different portions and the sensor coils. In another embodiment, the target comprises first and second portions that are separated along the measurement path such that in a first range of relative positions, the first target portion is adjacent the one or more sensor coils and in a second range of relative positions, the second target portion is adjacent the one or more sensor coils. The first and second target portions are asymmetrically arranged relative to the sensor coils such that when each target portion is adjacent the same portion of the sensor coils, different signals are induced in the sensor coils.Type: ApplicationFiled: December 21, 2011Publication date: October 3, 2013Inventor: David Ely
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Patent number: 8120371Abstract: An object position sensing apparatus including a substrate, a conductive crossbar, and a plurality of resistive elements coupled to the crossbar is described. The resistive elements are coupled to circuitry that can apply an excitation signal, such as a voltage change, to the resistive elements. For each resistive element, an electrical effect responsive to the excitation signal, such as a change in charge flowing to the resistive element, is determined. When an object is proximate to the plurality of resistive elements, the electrical effects change, and a position of the object in one or multiple dimensions can be determined from changes in the electrical effects.Type: GrantFiled: June 27, 2008Date of Patent: February 21, 2012Assignee: Synaptics, Inc.Inventors: Shawn P. Day, David Ely, Bob L. Mackey
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Patent number: 7948245Abstract: Methods, systems and devices are described for detecting a measurable capacitance using sigma-delta measurement techniques. According to various embodiments, a voltage is applied to the measurable capacitance using a first switch. The measurable capacitance is allowed to share charge with a passive network. If the charge on the passive network is past a threshold value, then the charge on the passive network is changed by a known amount for a sufficient number of repetitions until the measurable capacitance can be detected. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to a button, slider, touchpad or other input sensor.Type: GrantFiled: February 18, 2010Date of Patent: May 24, 2011Assignee: Synaptics IncorporatedInventors: Kirk Hargreaves, Joseph Kurth Reynolds, David Ely, Julian Haines
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Patent number: 7902842Abstract: Methods, systems and devices are described for detecting a measurable capacitance using charge transfer techniques that can be implemented with many standard microcontrollers, and can share components to reduce device complexity and improve performance. In the various implementations of this embodiment, the passive network used to accumulate charge can be shared between multiple measurable capacitances. Likewise, in various implementations a voltage conditioning circuit configured to provide a variable reference voltage can be shared between multiple measurable capacitances. Finally, in various implementations a guarding electrode configured to guard the measurable capacitances can be shared between multiple measurable capacitances. In each of these cases, sharing components can reduce device complexity and improve performance.Type: GrantFiled: October 26, 2007Date of Patent: March 8, 2011Assignee: Synaptics IncorporatedInventors: Joseph Kurth Reynolds, Kirk Hargreaves, David Ely, Paul Routley, Julian Haines
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Publication number: 20100321338Abstract: An X-Y digitizer system is described for embedding within a host device, such as a tablet PC, a mobile telephone, a personal digital assistant or the like. The digitizer is configurable so that it can detect and track the position of different types of position indicator. The digitizer also includes novel digitizer windings and novel excitation circuitry for energizing the windings.Type: ApplicationFiled: September 1, 2010Publication date: December 23, 2010Applicant: Synaptics (UK) Ltd.Inventor: David ELY
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Patent number: 7812268Abstract: An X-Y digitizer system is described for embedding within a host device, such as a tablet PC, a mobile telephone, a personal digital assistant or the like. The digitizer is configurable so that it can detect and track the position of different types of position indicator. The digitizer that is described also includes novel digitizer windings and novel excitation circuitry for energizing the windings.Type: GrantFiled: August 26, 2004Date of Patent: October 12, 2010Assignee: Synaptics (UK) LimitedInventor: David Ely
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Patent number: 7750649Abstract: Methods, systems and devices are described for detecting a measurable capacitance using charge transfer techniques. According to various embodiments, a charge transfer process is performed for two or more times. During the charge transfer process, a pre-determined voltage is applied to the measurable capacitance, and the measurable capacitance is then allowed to share charge with a filter capacitance through a passive impedance that remains coupled to both the measurable capacitance and to the filter capacitance throughout the charge transfer process. The value of the measurable capacitance can then be determined as a function of a representation of a charge on the filter capacitance and the number of times that the charge transfer process was performed. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to an input sensor.Type: GrantFiled: March 13, 2009Date of Patent: July 6, 2010Assignee: Synaptics IncorporatedInventors: David Ely, Paul Routley, Joseph Kurth Reynolds, Julian Haines, Kirk Hargreaves
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Publication number: 20100148806Abstract: Methods, systems and devices are described for detecting a measurable capacitance using sigma-delta measurement techniques. According to various embodiments, a voltage is applied to the measurable capacitance using a first switch. The measurable capacitance is allowed to share charge with a passive network. If the charge on the passive network is past a threshold value, then the charge on the passive network is changed by a known amount for a sufficient number of repetitions until the measurable capacitance can be detected. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to a button, slider, touchpad or other input sensor.Type: ApplicationFiled: February 18, 2010Publication date: June 17, 2010Applicant: SYNAPTICS INCORPORATEDInventors: Kirk Hargreaves, Joseph Kurth Reynolds, David Ely, Julian Haines
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Patent number: 7683641Abstract: Methods, systems and devices are described for detecting a measurable capacitance using sigma-delta measurement techniques. According to various embodiments, a voltage is applied to the measurable capacitance using a first switch. The measurable capacitance is allowed to share charge with a passive network. If the charge on the passive network is past a threshold value, then the charge on the passive network is changed by a known amount for a sufficient number of repetitions until the measurable capacitance can be detected. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to a button, slider, touchpad or other input sensor.Type: GrantFiled: October 15, 2008Date of Patent: March 23, 2010Assignee: Synaptics IncorporatedInventors: Kirk Hargreaves, Joseph Kurth Reynolds, David Ely, Julian Haines
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Publication number: 20090322355Abstract: An object position sensing apparatus including a substrate, a conductive crossbar, and a plurality of resistive elements coupled to the crossbar is described. The resistive elements are coupled to circuitry that can apply an excitation signal, such as a voltage change, to the resistive elements. For each resistive element, an electrical effect responsive to the excitation signal, such as a change in charge flowing to the resistive element, is determined. When an object is proximate to the plurality of resistive elements, the electrical effects change, and a position of the object in one or multiple dimensions can be determined from changes in the electrical effects.Type: ApplicationFiled: June 27, 2008Publication date: December 31, 2009Inventors: Shawn P. Day, David Ely, Bob L. Mackey
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Publication number: 20090174416Abstract: Methods, systems and devices are described for detecting a measurable capacitance using charge transfer techniques. According to various embodiments, a charge transfer process is performed for two or more times. During the charge transfer process, a pre-determined voltage is applied to the measurable capacitance, and the measurable capacitance is then allowed to share charge with a filter capacitance through a passive impedance that remains coupled to both the measurable capacitance and to the filter capacitance throughout the charge transfer process. The value of the measurable capacitance can then be determined as a function of a representation of a charge on the filter capacitance and the number of times that the charge transfer process was performed. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to an input sensor.Type: ApplicationFiled: March 13, 2009Publication date: July 9, 2009Applicant: SYNAPTICS INCORPORATEDInventors: David ELY, Paul ROUTLEY, Joseph Kurth REYNOLDS, Julian HAINES, Kirk HARGREAVES
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Patent number: 7521941Abstract: Methods, systems and devices are described for detecting a measurable capacitance using charge transfer techniques. According to various embodiments, a charge transfer process is performed for two or more times. During the charge transfer process, a pre-determined voltage is applied to the measurable capacitance, and the measurable capacitance is then allowed to share charge with a filter capacitance through a passive impedance that remains coupled to both the measurable capacitance and to the filter capacitance throughout the charge transfer process. The value of the measurable capacitance can then be determined as a function of a representation of a charge on the filter capacitance and the number of times that the charge transfer process was performed. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to an input sensor.Type: GrantFiled: October 26, 2007Date of Patent: April 21, 2009Assignee: Synaptics, Inc.Inventors: David Ely, Paul Routley, Joseph Kurth Reynolds, Julian Haines, Kirk Hargreaves
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Publication number: 20090039902Abstract: Methods, systems and devices are described for detecting a measurable capacitance using sigma-delta measurement techniques. According to various embodiments, a voltage is applied to the measurable capacitance using a first switch. The measurable capacitance is allowed to share charge with a passive network. If the charge on the passive network is past a threshold value, then the charge on the passive network is changed by a known amount for a sufficient number of repetitions until the measurable capacitance can be detected. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to a button, slider, touchpad or other input sensor.Type: ApplicationFiled: October 15, 2008Publication date: February 12, 2009Applicant: SYNAPTICS INCORPORATEDInventors: Kirk HARGREAVES, Joseph Kurth REYNOLDS, David ELY, Julian HAINES
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Patent number: 7453270Abstract: Methods, systems and devices are described for detecting a measurable capacitance using sigma-delta measurement techniques. According to various embodiments, a voltage is applied to the measurable capacitance using a first switch. The measurable capacitance is allowed to share charge with a passive network. If the charge on the passive network is past a threshold value, then the charge on the passive network is changed by a known amount for a sufficient number of repetitions until the measurable capacitance can be detected. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to a button, slider, touchpad or other input sensor.Type: GrantFiled: October 30, 2007Date of Patent: November 18, 2008Assignee: Synaptics IncorporatedInventors: Kirk Hargreaves, Joseph Kurth Reynolds, David Ely, Julian Haines
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Patent number: 7449895Abstract: Methods, systems and devices are described for detecting a measurable capacitance using charge transfer techniques. According to various embodiments, a charge transfer process is performed for two or more times. During the charge transfer process, a pre-determined voltage is applied to the measurable capacitance, and the measurable capacitance is then allowed to share charge with a filter capacitance through a passive impedance that remains coupled to both the measurable capacitance and to the filter capacitance throughout the charge transfer process. The value of the measurable capacitance can then be determined as a function of a representation of a charge on the filter capacitance and the number of times that the charge transfer process was performed. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to an input sensor.Type: GrantFiled: June 3, 2006Date of Patent: November 11, 2008Assignee: Synaptics IncorporatedInventors: David Ely, Paul Routley, Joseph Kurth Reynolds, Julian Haines, Kirk Hargreaves
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Patent number: 7423437Abstract: Methods, systems and devices are described for detecting a measurable capacitance using sigma-delta measurement techniques. According to various embodiments, a voltage is applied to the measurable capacitance using a first switch. The measurable capacitance is allowed to share charge with a passive network. If the charge on the passive network is past a threshold value, then the charge on the passive network is changed by a known amount for a sufficient number of repetitions until the measurable capacitance can be detected. Such a detection scheme may be readily implemented using conventional components, and can be particularly useful in sensing the position of a finger, stylus or other object with respect to a button, slider, touchpad or other input sensor.Type: GrantFiled: October 30, 2007Date of Patent: September 9, 2008Assignee: Synaptics IncorporatedInventors: Kirk Hargreaves, Joseph Kurth Reynolds, David Ely, Julian Haines
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Patent number: D1043666Type: GrantFiled: March 28, 2022Date of Patent: September 24, 2024Assignee: Apple Inc.Inventors: Jody Akana, Bartley K. Andre, Shota Aoyagi, Anthony Michael Ashcroft, Jeremy Bataillou, Brad G. Boozer, Makiko Kawamura Brzezinski, Tyler Scott Bushnell, Daniel J. Coster, Daniele De Iuliis, Colin Ely, M. Evans Hankey, Phillip M. Hobson, Julian Hoenig, Richard P. Howarth, Jonathan P. Ive, Eric Steven Jol, Benjamin Jordan Kallman, Duncan Robert Kerr, David Nazzaro, Trevor Jordan Ness, Marc A. Newson, David Pelletier, Matthew Dean Rohrbach, Fletcher Rothkopf, Peter Russell-Clarke, Jason Christopher Sauers, Benjamin Andrew Shaffer, Anna-Katrina Shedletsky, Mikael Silvanto, Christopher J. Stringer, Samuel Bruce Weiss, Christopher M. Werner, Eugene Antony Whang, Michael Benjamin Wittenberg, Stephen Paul Zadesky, Rico Zörkendörfer