Patents by Inventor David A. Hardell
David A. Hardell 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: 11088567Abstract: Examples of the disclosure are directed to methods of managing power of various modules of an electronic device to prevent the voltage of the battery from falling to an undervoltage lockout (UVLO) threshold. In some examples, software operating on the electronic device or an associated electronic device (e.g., a paired electronic device) may assign power budgets to one or more modules, thereby preventing each module from drawing its maximum current capacity and causing the battery's voltage level to fall to the UVLO threshold. In some examples, a pre-UVLO threshold (i.e., a threshold higher than the UVLO threshold) may be used to modify the states of one or more modules to save power as the voltage of the battery approaches the UVLO threshold, but before the device must be fully powered off.Type: GrantFiled: July 3, 2019Date of Patent: August 10, 2021Assignee: Apple Inc.Inventors: Cyril De La Cropte De Chanterac, David A. Hardell, Matthew L. Semersky, Yehonatan Perez
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Patent number: 9980232Abstract: Circuits, methods, and apparatus that react to brownout or near brownout conditions and mitigate complications that may result. Examples may turn off one or more circuits, such as a Wi-Fi transceiver when a brownout condition is reached or neared. Other examples may provide circuits, methods, and apparatus that proactively avoid brownout conditions. These examples may detect that a brownout condition may occur and take steps, such as Wi-Fi traffic shaping, to avoid them. Still further examples may react to brownout or near brownout conditions one or more times, then preemptively act to avoid further brownout conditions.Type: GrantFiled: May 30, 2015Date of Patent: May 22, 2018Assignee: APPLE INC.Inventors: Matthew L. Semersky, David A. Hardell, Cyril de la Cropte de Chanterac, Yehonantan Perez
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Patent number: 9839041Abstract: Methods and apparatus for mitigating the effects of interference between multiple air interfaces located on an electronic device. In one embodiment, the air interfaces include a WLAN interface and PAN (e.g., Bluetooth) interface, and information such as Receiver Signal Strength Index (RSSI) as well as system noise level information are used in order to intelligently execute interference mitigation methodologies, including the selective application of modified frequency selection, variation of transmitter power, and/or change of operating mode (e.g., from multiple-in multiple-out (MIMO) to single-in, single-out (SISO)) so as to reduce isolation requirements between the interfaces. These methods and apparatus are particularly well suited to use cases where the WLAN interface is operating with high data transmission rates. Business methods associated with the foregoing technology are also described.Type: GrantFiled: August 17, 2015Date of Patent: December 5, 2017Assignee: Apple Inc.Inventors: Jaime Tolentino, Camille Chen, Michael Jason Giles, Huy Le, Gary Thomason, David A. Hardell
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Patent number: 9647489Abstract: Examples of the disclosure are directed to methods of managing power of various modules of an electronic device to prevent the voltage of the battery from falling to an undervoltage lockout (UVLO) threshold. In some examples, software operating on the electronic device or an associated electronic device (e.g., a paired electronic device) may assign power budgets to one or more modules, thereby preventing each module from drawing its maximum current capacity and causing the battery's voltage level to fall to the UVLO threshold. In some examples, a pre-UVLO threshold (i.e., a threshold higher than the UVLO threshold) may be used to modify the states of one or more modules to save power as the voltage of the battery approaches the UVLO threshold, but before the device must be fully powered off.Type: GrantFiled: July 29, 2015Date of Patent: May 9, 2017Assignee: Apple Inc.Inventors: Cyril De La Cropte De Chanterac, David A. Hardell, Matthew L. Semersky, Yehonatan Perez
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Publication number: 20160057707Abstract: Circuits, methods, and apparatus that react to brownout or near brownout conditions and mitigate complications that may result. Examples may turn off one or more circuits, such as a Wi-Fi transceiver when a brownout condition is reached or neared. Other examples may provide circuits, methods, and apparatus that proactively avoid brownout conditions. These examples may detect that a brownout condition may occur and take steps, such as Wi-Fi traffic shaping, to avoid them. Still further examples may react to brownout or near brownout conditions one or more times, then preemptively act to avoid further brownout conditions.Type: ApplicationFiled: May 30, 2015Publication date: February 25, 2016Applicant: APPLE INC.Inventors: Matthew L. Semersky, David A. Hardell, Cyril de la Cropte de Chanterac, Yehonantan Perez
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Publication number: 20160050681Abstract: Methods and apparatus for mitigating the effects of interference between multiple air interfaces located on an electronic device. In one embodiment, the air interfaces include a WLAN interface and PAN (e.g., Bluetooth) interface, and information such as Receiver Signal Strength Index (RSSI) as well as system noise level information are used in order to intelligently execute interference mitigation methodologies, including the selective application of modified frequency selection, variation of transmitter power, and/or change of operating mode (e.g., from multiple-in multiple-out (MIMO) to single-in, single-out (SISO)) so as to reduce isolation requirements between the interfaces. These methods and apparatus are particularly well suited to use cases where the WLAN interface is operating with high data transmission rates. Business methods associated with the foregoing technology are also described.Type: ApplicationFiled: August 17, 2015Publication date: February 18, 2016Inventors: Jaime Tolentino, Camille Chen, Michael Jason Giles, Huy Le, Gary Thomason, David A. Hardell
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Patent number: 9208774Abstract: A system to eliminate acoustic noise caused by a first Multi-Layer Ceramic Capacitor (MLCC) array positioned on a printed circuit board (PCB) is disclosed. The first MLCC array generates a first vibration responsible for the acoustic noise in response to receiving a varying input voltage. A third MLCC array senses the first vibration and generates a feedback signal. An adaptive filter then uses the feedback signal to generate an output signal that is used by a second MLCC to generate a second vibration that acts as a counter to dampen the first vibration. Because the input voltage signal is varying in time, the adaptive filter continually samples the varying input voltage and the feedback signal to generate the output signal that minimizes the acoustic noise. The second and third MLCC arrays are selectively positioned and oriented on the PCB for optimum performance.Type: GrantFiled: April 12, 2013Date of Patent: December 8, 2015Assignee: Apple Inc.Inventor: David A. Hardell
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Patent number: 9113349Abstract: Methods and apparatus for mitigating the effects of interference between multiple air interfaces located on an electronic device. In one embodiment, the air interfaces include a WLAN interface and PAN (e.g., Bluetooth) interface, and information such as Receiver Signal Strength Index (RSSI) as well as system noise level information are used in order to intelligently execute interference mitigation methodologies, including the selective application of modified frequency selection, variation of transmitter power, and/or change of operating mode (e.g., from multiple-in multiple-out (MIMO) to single-in, single-out (SISO)) so as to reduce isolation requirements between the interfaces. These methods and apparatus are particularly well suited to use cases where the WLAN interface is operating with high data transmission rates. Business methods associated with the foregoing technology are also described.Type: GrantFiled: December 21, 2012Date of Patent: August 18, 2015Assignee: Apple Inc.Inventors: Jaime Tolentino, Camille Chen, Michael Jason Giles, Huy Le, Gary Thomason, David A. Hardell
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Publication number: 20140307889Abstract: A system to eliminate acoustic noise caused by a first MLCC (Multi-Layer Ceramic Capacitor) array positioned on a PCB (printed circuit board) is disclosed. The first MLCC array generates a first vibration responsible for the acoustic noise in response to receiving a varying input voltage. A third MLCC array senses the first vibration and generates a feedback signal. An adaptive filter then uses the feedback signal to generate an output signal that is used by a second MLCC to generate a second vibration that acts as a counter to dampen the first vibration. Because the input voltage signal is varying in time, the adaptive filter continually samples the varying input voltage and the feedback signal to generate the output signal that minimizes the acoustic noise. The second and third MLCC arrays are selectively positioned and oriented on the PCB for optimum performance.Type: ApplicationFiled: April 12, 2013Publication date: October 16, 2014Applicant: Apple Inc.Inventor: David A. Hardell
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Patent number: 8340578Abstract: Methods and apparatus for mitigating the effects of interference between multiple air interfaces located on an electronic device. In one embodiment, the air interfaces include a WLAN interface and PAN (e.g., Bluetooth) interface, and information such as Receiver Signal Strength Index (RSSI) as well as system noise level information are used in order to intelligently execute interference mitigation methodologies, including the selective application of modified frequency selection, variation of transmitter power, and/or change of operating mode (e.g., from multiple-in multiple-out (MIMO) to single-in, single-out (SISO)) so as to reduce isolation requirements between the interfaces. These methods and apparatus are particularly well suited to use cases where the WLAN interface is operating with high data transmission rates. Business methods associated with the foregoing technology are also described.Type: GrantFiled: October 5, 2009Date of Patent: December 25, 2012Assignee: Apple Inc.Inventors: Jaime Tolentino, Camille Chen, Michael Jason Giles, Huy Le, Gary Thomason, David A. Hardell
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Publication number: 20110081858Abstract: Methods and apparatus for mitigating the effects of interference between multiple air interfaces located on an electronic device. In one embodiment, the air interfaces include a WLAN interface and PAN (e.g., Bluetooth) interface, and information such as Receiver Signal Strength Index (RSSI) as well as system noise level information are used in order to intelligently execute interference mitigation methodologies, including the selective application of modified frequency selection, variation of transmitter power, and/or change of operating mode (e.g., from multiple-in multiple-out (MIMO) to single-in, single-out (SISO)) so as to reduce isolation requirements between the interfaces. These methods and apparatus are particularly well suited to use cases where the WLAN interface is operating with high data transmission rates. Business methods associated with the foregoing technology are also described.Type: ApplicationFiled: October 5, 2009Publication date: April 7, 2011Inventors: Jaime Tolentino, Camille Chen, Michael Jason Giles, Huy Le, Gary Thomason, David A. Hardell
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Patent number: 7819685Abstract: A card connector that allows a card to be at least partially coplanar with a logic board is described herein. A system having a card at least partially coplanar with a logic board is also disclosed. A card connector that allows at least one longitudinal plane through the logic board to intersect at least a point of the card is also disclosed. The card may be a memory module.Type: GrantFiled: May 15, 2009Date of Patent: October 26, 2010Assignee: Apple Inc.Inventor: David A. Hardell
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Publication number: 20090221155Abstract: A card connector that allows a card to be at least partially coplanar with a logic board is described herein. A system having a card at least partially coplanar with a logic board is also disclosed. A card connector that allows at least one longitudinal plane through the logic board to intersect at least a point of the card is also disclosed. The card may be a memory module.Type: ApplicationFiled: May 15, 2009Publication date: September 3, 2009Inventor: David A. Hardell
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Patent number: 7540742Abstract: A card connector that allows a card to be at least partially coplanar with a logic board is described herein. A system having a card at least partially coplanar with a logic board is also disclosed. A card connector that allows at least one longitudinal plane through the logic board to intersect at least a point of the card is also disclosed. The card may be a memory module.Type: GrantFiled: August 30, 2004Date of Patent: June 2, 2009Assignee: Apple Inc.Inventor: David A. Hardell