Patents by Inventor John R. Turner
John R. Turner 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: 9794708Abstract: Apparatus and methods for detecting audio jack connection anomalies such as moisture or a partial insertion of an audio jack plug with an audio jack receptacle are provided. In an example, a method for detecting an audio jack insertion anomaly can include ramping on a first detection current source of a detection circuit coupled to a detection terminal of a first audio jack connector, receiving a reference information at a comparator of the detection circuit, receiving a voltage of the detection terminal at the comparator, providing comparison information at an output of the comparator, the comparison information indicative of a comparison of the voltage of the detection terminal and the reverence information, and wherein a first state of the comparison information indicates the audio jack insertion anomaly is due to moisture at the first audio jack connector.Type: GrantFiled: January 15, 2015Date of Patent: October 17, 2017Assignee: Fairchild Semiconductor CorporationInventor: John R. Turner
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Patent number: 9769579Abstract: Apparatus and methods for detecting audio jack connection anomalies such as moisture or a partial insertion of an audio jack plug with an audio jack receptacle are provided. In an example, a method for detecting an audio jack insertion anomaly can include ramping on a first detection current source of a detection circuit coupled to a detection terminal of a first audio jack connector, receiving a reference information at a comparator of the detection circuit, receiving a voltage of the detection terminal at the comparator, providing comparison information at an output of the comparator, the comparison information indicative of a comparison of the voltage of the detection terminal and the reverence information, and wherein a first state of the comparison information indicates the audio jack insertion anomaly is due to moisture at the first audio jack connector.Type: GrantFiled: January 15, 2015Date of Patent: September 19, 2017Assignee: Fairchild Semiconductor CorporationInventor: John R. Turner
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Patent number: 9609447Abstract: This document discusses, among other things, circuits and methods for providing an indication of an impedance between a detecting pin and a first signal pin of an audio socket using first and second comparators to, among other things, determine if moisture is present in the audio socket. If moisture is present in the audio socket, communication between an audio processing unit and the audio socket can be disabled.Type: GrantFiled: May 8, 2015Date of Patent: March 28, 2017Assignee: FAIRCHILD SEMICONDUCTOR CORPORATIONInventors: Myron J. Miske, Christian Klein, John R. Turner, Peter Chadbourne
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Patent number: 9584893Abstract: Apparatus and methods for recovering from an audio jack connection anomaly such as a partial insertion of an audio jack plug with an audio jack receptacle are provided. In an example, a method can include detecting a valid audio jack connection of an audio jack receptacle and an audio jack plug, detecting a change in a state of a detect switch associated with the audio jack connection, applying an oscillating signal to a microphone terminal associated with the audio jack connection, determining the state of the detect switch stays constant for a predetermined time, and isolating the oscillating signal from the microphone terminal.Type: GrantFiled: January 15, 2015Date of Patent: February 28, 2017Assignee: FAIRCHILD SEMICONDUCTOR CORPORATIONInventor: John R. Turner
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Patent number: 9552317Abstract: This application discusses, among other things, communication apparatus and methods, and more particularly, a single conductor or single wire communication scheme. In an example, a method for communicating between a master device and a slave device using a first single conductor can include transmitting a first ping on the first single conductor using a master device, the first single conductor configured to couple the master device to a slave device, receiving a slave ping on the first single conductor at the master device during a ping interval, toggling a logic level of the first single conductor prior to sending a first data packet using pulses having a duration of less than one half of a unit interval, such as a unit interval associated with a bit interval.Type: GrantFiled: October 18, 2013Date of Patent: January 24, 2017Assignee: Fairchild Semiconductor CorporationInventors: Erik Maier, John R. Turner
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Patent number: 9202041Abstract: This document discusses, among other things, an attack detection module configured to permanently shut down a slave device after a number of consecutive attacks.Type: GrantFiled: February 6, 2014Date of Patent: December 1, 2015Assignee: Fairchild Semiconductor CorporationInventors: Robert A. Card, Jefferson Hopkins, Christian Klein, Myron J. Miske, Michael Smith, John R. Turner, Jaeyoung Yoo
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Patent number: 9202073Abstract: This document discusses, among other things, security measures for shielding or protecting data or sensitive signals on an integrated circuit (IC). The systems and methods disclosed herein can allow erasing sensitive data when access is not locked, locking out access to sensitive data during normal operations through both indirect and direct means, and shielding sensitive signals from invasive probing or manipulation.Type: GrantFiled: November 21, 2013Date of Patent: December 1, 2015Assignee: FAIRCHILD SEMICONDUCTOR CORPORATIONInventors: Bert Marston, John R. Turner, Michael Smith, Kenneth P. Snowdon, Nathan Charland
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Publication number: 20150326970Abstract: This document discusses, among other things, circuits and methods for providing an indication of an impedance between a detecting pin and a first signal pin of an audio socket using first and second comparators to, among other things, determine if moisture is present in the audio socket. If moisture is present in the audio socket, communication between an audio processing unit and the audio socket can be disabled.Type: ApplicationFiled: May 8, 2015Publication date: November 12, 2015Inventors: Myron J. Miske, Christian Klein, John R. Turner, Peter Chadbourne
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Publication number: 20150208154Abstract: Apparatus and methods for detecting audio jack connection anomalies such as moisture or a partial insertion of an audio jack plug with an audio jack receptacle are provided. In an example, a method for detecting an audio jack insertion anomaly can include ramping on a first detection current source of a detection circuit coupled to a detection terminal of a first audio jack connector, receiving a reference information at a comparator of the detection circuit, receiving a voltage of the detection terminal at the comparator, providing comparison information at an output of the comparator, the comparison information indicative of a comparison of the voltage of the detection terminal and the reverence information, and wherein a first state of the comparison information indicates the audio jack insertion anomaly is due to moisture at the first audio jack connector.Type: ApplicationFiled: January 15, 2015Publication date: July 23, 2015Inventor: John R. Turner
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Publication number: 20150208155Abstract: Apparatus and methods for recovering from an audio jack connection anomaly such as a partial insertion of an audio jack plug with an audio jack receptacle are provided. In an example, a method can include detecting a valid audio jack connection of an audio jack receptacle and an audio jack plug, detecting a change in a state of a detect switch associated with the audio jack connection, applying an oscillating signal to a microphone terminal associated with the audio jack connection, determining the state of the detect switch stays constant for a predetermined time, and isolating the oscillating signal from the microphone terminal.Type: ApplicationFiled: January 15, 2015Publication date: July 23, 2015Inventor: John R. Turner
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Patent number: 8831234Abstract: This document discusses, among other things, an audio jack detection circuit configured to be coupled to an audio jack receptacle of an external device. The audio jack detection circuit configured to receive to receive audio jack receptacle information, to disable an oscillator when the audio jack receptacle information indicates that the audio jack receptacle is empty, and to enable the oscillator when the audio jack receptacle information indicates that the audio jack receptacle includes an audio jack.Type: GrantFiled: July 22, 2011Date of Patent: September 9, 2014Assignee: Fairchild Semiconductor CorporationInventors: John R. Turner, Seth M. Prentice, Oscar Freitas, Wonsoo Moon
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Patent number: 8829932Abstract: This application provides apparatus and methods for initiating tests in an interface circuit without using inputs of the interface circuit dedicated to initiating the tests. In an example, a test mode interface circuit can include a voltage comparator configured compare a first voltage to a second voltage, a ripple counter configured to count pulses from a processor when the voltage comparator indicates that the first voltage is greater than the second voltage, and wherein the test mode interface circuit is configured to provide a test mode enable signal and an indication of the a desired test mode an interface circuit that includes the test mode interface circuit.Type: GrantFiled: July 22, 2011Date of Patent: September 9, 2014Assignee: Fairchild Semiconductor CorporationInventors: John R. Turner, Nathan Charland
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Patent number: 8817994Abstract: This document provides apparatus and methods for providing low-power operation of an interface circuit during an interval when a port of the interface circuit is in an uncoupled state.Type: GrantFiled: July 22, 2011Date of Patent: August 26, 2014Assignee: Fairchild Semiconductor CorporationInventors: John R. Turner, Seth M. Prentice
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Publication number: 20140219442Abstract: This document discusses, among other things, a method of distributing authentication keys that can prevent certain forms of circuit fabrication piracy. In an example, a method can include selecting a number of authentication keys for generation at a key generation computer, generating a random number using a random number generator of the key generation computer, generating the number of authentication keys using the random number and a key generation algorithm stored in the memory of the key generation computer, scrambling each of the number of authentication keys using a scrambling routine executing on the key generation computer, and distributing the scrambled authentication keys to an authorized manufacturers.Type: ApplicationFiled: February 7, 2014Publication date: August 7, 2014Applicant: Fairchild Semiconductor CorporationInventors: Robert A. Card, Jefferson Hopkins, Christian Klein, Myron J. Miske, Michael Smith, John R. Turner, Jaeyoung Yoo, Nathan Charland
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Publication number: 20140223557Abstract: This document discusses, among other things, an attack detection module configured to permanently shut down a slave device after a number of consecutive attacks.Type: ApplicationFiled: February 6, 2014Publication date: August 7, 2014Applicant: Fairchild Semiconductor CorporationInventors: Robert A. Card, Jefferson Hopkins, Christian Klein, Myron J. Miske, Michael Smith, John R. Turner, Jaeyoung Yoo
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Publication number: 20140143887Abstract: This document discusses, among other things, security measures for shielding or protecting data or sensitive signals on an integrated circuit (IC). The systems and methods disclosed herein can allow erasing sensitive data when access is not locked, locking out access to sensitive data during normal operations through both indirect and direct means, and shielding sensitive signals from invasive probing or manipulation.Type: ApplicationFiled: November 21, 2013Publication date: May 22, 2014Applicant: Fairchild Semiconductor CorporationInventors: Bert Marston, John R. Turner, Michael Smith, Kenneth P. Snowdon, Nathan Charland
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Publication number: 20140115344Abstract: This application discusses, among other things, communication apparatus and methods, and more particularly, a single conductor or single wire communication scheme. In an example, a method for communicating between a master device and a slave device using a first single conductor can include transmitting a first ping on the first single conductor using a master device, the first single conductor configured to couple the master device to a slave device, receiving a slave ping on the first single conductor at the master device during a ping interval, toggling a logic level of the first single conductor prior to sending a first data packet using pulses having a duration of less than one half of a unit interval, such as a unit interval associated with a bit interval.Type: ApplicationFiled: October 18, 2013Publication date: April 24, 2014Applicant: Fairchild Semiconductor CorporationInventors: Erik Maier, John R. Turner
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Patent number: 8564375Abstract: In one general aspect, an apparatus can include a reference oscillator counter circuit configured to produce a reference oscillator count value based on a reference oscillator signal, and a target oscillator counter circuit configured to produce a target oscillator count value based on a target oscillator signal where the target oscillator signal has a frequency targeted for calibration against a frequency of the reference oscillator signal. The apparatus can include a difference circuit configured to calculate a difference between the reference oscillator counter value and the target oscillator counter value, and a summation circuit configured to define a trim code based on only a portion of bit values from the difference.Type: GrantFiled: December 30, 2011Date of Patent: October 22, 2013Assignee: Fairchild Semiconductor CorporationInventors: John R. Turner, Tyler Daigle
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Publication number: 20130169369Abstract: In one general aspect, an apparatus can include a reference oscillator counter circuit configured to produce a reference oscillator count value based on a reference oscillator signal, and a target oscillator counter circuit configured to produce a target oscillator count value based on a target oscillator signal where the target oscillator signal has a frequency targeted for calibration against a frequency of the reference oscillator signal. The apparatus can include a difference circuit configured to calculate a difference between the reference oscillator counter value and the target oscillator counter value, and a summation circuit configured to define a trim code based on only a portion of bit values from the difference.Type: ApplicationFiled: December 30, 2011Publication date: July 4, 2013Inventors: John R. Turner, Tyler Daigle
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Patent number: D988862Type: GrantFiled: October 15, 2021Date of Patent: June 13, 2023Assignee: F.M. HOWELL & COMPANYInventors: John R. Turner, Dylan J. Fisher