Patents by Inventor Bradley Allan LAMBERT

Bradley Allan LAMBERT 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).

  • Patent number: 10890939
    Abstract: A method for generating a not-yet (NYET) signal in a recovered reference system for recovering a device reference clock on a device, wherein the NYET signal indicates that the device is not yet ready for transition into a low power mode, in order to improve a quality of a recovered reference clock representative of a host reference clock of a host communicatively coupled to the device, may be provided. The method may include detecting receipt of start-of-frame markers from the host to the device, responsive to detecting receipt of the markers, determining whether a condition for NYET generation is being met, responsive to the condition for NYET generation being met, generating the NYET signal to cause the host to continue generating the markers, and responsive to the condition for NYET generation not being met, causing the device to generate an acknowledge signal for transition of the device into the low power mode.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 12, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: Bradley Allan Lambert, Bruce E. Duewer, David Hisky, Marc J. Kobayashi, Michael A. Kost
  • Patent number: 10713184
    Abstract: Interface circuitry is provided for a host device, the interface circuitry for controlling data connections between the host device and a peripheral device.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: July 14, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Robert David Rand, Bradley Allan Lambert
  • Patent number: 10579119
    Abstract: A method for port policy management for active charge through of a peripheral device that has a first communication port and a second communication port may include detecting whether a valid power connection exists at the peripheral device, in response to detecting the valid power connection, determining a relationship between the first communication port and the second communication port, based on the relationship, determining, by the peripheral device, a power relationship among the peripheral device, the first communication port, and the second communication port, selectively configuring the first communication port, the second communication port, and the peripheral device to match the power relationship, and enabling active charging through of the peripheral device if active charging through is supported by the power relationship.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 3, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Bradley Allan Lambert, Michael A. Kost, Ganesh Saripalli, Gregory C. Yancey
  • Patent number: 10515025
    Abstract: In accordance with embodiments of the present disclosure, an adapter for different types of devices that are defined by a full set of capabilities for a communication protocol may include one or more ports, wherein each of the one or more ports is configured to receive one of the different types of devices, and a device controller communicatively coupled to the one or more ports. The device controller may be configured to, when one of the different types of devices is received by the one or more ports obtain information related to a detection of the one of the different types of devices and, based on the information related to the detection, expose a subset of capabilities from the full set of capabilities to a bus of the communication protocol, wherein the subset of capabilities is defined by the one of the different types of devices for the communication protocol.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 24, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Bradley Allan Lambert, Michael A. Kost
  • Publication number: 20190261076
    Abstract: There is provided a USB audio accessory device, comprising: an audio transducer, configured to generate an audio transducer signal; interface circuitry, configured to receive analogue and digital representations of the audio transducer signal; and a USB-C connector for connecting to a USB host device, coupled to the interface circuitry. The interface circuitry is operable, in a first mode of operation, to output simultaneously the analogue representation of the audio transducer signal over a first pin of the USB-C connector, and the digital representation of the audio transducer signal over second and third pins of the USB-C connector.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 22, 2019
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Bradley Allan LAMBERT, Michael Allan KOST, Robert David RAND, Ian Johnson SMITH
  • Publication number: 20180349296
    Abstract: Interface circuitry is provided for a host device, the interface circuitry for controlling data connections between the host device and a peripheral device.
    Type: Application
    Filed: May 24, 2018
    Publication date: December 6, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Robert David RAND, Bradley Allan LAMBERT
  • Publication number: 20180341310
    Abstract: A method for port policy management for active charge through of a peripheral device that has a first communication port and a second communication port may include detecting whether a valid power connection exists at the peripheral device, in response to detecting the valid power connection, determining a relationship between the first communication port and the second communication port, based on the relationship, determining, by the peripheral device, a power relationship among the peripheral device, the first communication port, and the second communication port, selectively configuring the first communication port, the second communication port, and the peripheral device to match the power relationship, and enabling active charging through of the peripheral device if active charging through is supported by the power relationship.
    Type: Application
    Filed: March 27, 2018
    Publication date: November 29, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Bradley Allan LAMBERT, Michael A. KOST, Ganesh SARIPALLI, Gregory C. YANCEY
  • Publication number: 20180307293
    Abstract: A device may include an input for receiving information communicated from a host to the device and a controller configured to recover a device reference clock on the device, the device reference clock proportional to a host reference clock of the host, when clock signaling from the host to the device is unavailable. The controller may recover the device reference clock by measuring a ratio between the host reference clock and the device reference clock of the device by monitoring, with the device, host start-of-frame markers communicated from the host to the device via the input, creating a recovered reference clock based on the measured ratio, and creating local start-of-frame markers that are phase locked with the host start-of-frame markers based on the recovered reference clock.
    Type: Application
    Filed: March 20, 2018
    Publication date: October 25, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Bradley Allan LAMBERT, Bruce E. DUEWER, David HISKY, Marc J. KOBAYASHI, Michael A. KOST
  • Publication number: 20180039585
    Abstract: In accordance with embodiments of the present disclosure, an adapter for different types of devices that are defined by a full set of capabilities for a communication protocol may include one or more ports, wherein each of the one or more ports is configured to receive one of the different types of devices, and a device controller communicatively coupled to the one or more ports. The device controller may be configured to, when one of the different types of devices is received by the one or more ports obtain information related to a detection of the one of the different types of devices and, based on the information related to the detection, expose a subset of capabilities from the full set of capabilities to a bus of the communication protocol, wherein the subset of capabilities is defined by the one of the different types of devices for the communication protocol.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 8, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Bradley Allan LAMBERT, Michael A. KOST