Patents by Inventor Michael K. Brown

Michael K. Brown 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: 11141498
    Abstract: A portable communication device includes an apparatus for environmental sensing. The apparatus includes a housing, one or more environmental sensors and an optical source. The housing includes one or more ports for allowing air flow between the surrounding environment and a cavity of the housing. The environmental sensors are coupled to the housing and can sense an environmental agent included in the air flow. The optical source can illuminate the cavity of the housing to decompose unwanted organic compounds inside the port.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: October 12, 2021
    Assignee: Apple Inc.
    Inventors: Miaolei Yan, Michael K. Brown, Richard Yeh
  • Patent number: 11142303
    Abstract: An aircraft subassembly comprises a fuselage structure, comprising a first side and a second side. The aircraft subassembly further comprises a main-landing-gear system, having a single pair of wheels. The main-landing-gear system additionally comprises a sponson, connected to and extending outward from the fuselage structure. The sponson comprises a central portion and a first main-landing-gear door that is moveable relative to the central portion between, inclusively, a closed position and an open position. The sponson further comprises a second main-landing-gear door that is moveable relative to the central portion between, inclusively, a closed position and an open position. The main-landing-gear system further comprises a first main-landing-gear assembly, connected to the first wheel and a second main-landing-gear assembly, connected to the second wheel.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 12, 2021
    Assignee: The Boeing Company
    Inventors: Michael S. Karapetian, John Joseph Brown, James K. Pennell
  • Patent number: 11112233
    Abstract: Aspects of the subject technology relate to an apparatus for self-mixing particulate-matter sensing using a vertical-cavity surface-emitting laser (VCSEL) with extrinsic photodiodes. The apparatus includes a dual-emitting light source disposed on a first chip and to generate a first light beam and a second light beam. The first light beam illuminates a particulate matter (PM), and a light detector extrinsic to the first chip measures the second light beam and variations of the second light beam and generates a self-mixing signal. The variations of the second light beam are caused by a back-scattered light resulting from back-scattering of the first light beam from the PM. The light detector is coupled to the dual-emitting light source. The direction of the second light beam is opposite to the direction of the first light beam, and the second light beam is directed to a sensitive area of the light detector.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 7, 2021
    Assignee: Apple Inc.
    Inventors: Mehmet Mutlu, Michael K. Brown, Wesley S. Smith, Orit A. Shamir, Richard T. Chen, Mark T. Winkler, Miaolei Yan, Richard Yeh
  • Publication number: 20210080245
    Abstract: Aspects of the subject technology relate to an apparatus for self-mixing particulate-matter sensing using a vertical-cavity surface-emitting laser (VCSEL) with extrinsic photodiodes. The apparatus includes a dual-emitting light source disposed on a first chip and to generate a first light beam and a second light beam. The first light beam illuminates a particulate matter (PM), and a light detector extrinsic to the first chip measures the second light beam and variations of the second light beam and generates a self-mixing signal. The variations of the second light beam are caused by a back-scattered light resulting from back-scattering of the first light beam from the PM. The light detector is coupled to the dual-emitting light source. The direction of the second light beam is opposite to the direction of the first light beam, and the second light beam is directed to a sensitive area of the light detector.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 18, 2021
    Inventors: Mehmet MUTLU, Michael K. BROWN, Wesley S. SMITH, Orit A. SHAMIR, Richard T. CHEN, Mark T. WINKLER, Miaolei YAN, Richard YEH
  • Patent number: 10928345
    Abstract: A portable communication device may include a gas sensor enclosed in an enclosure, a port to allow flow of air into and out of the enclosure, and a light source disposed on an internal surface of the enclosure. The light source is operable to facilitate generation of ozone gas within the enclosure. The enclosure may contain a heating element that allows baseline calibration of the gas sensor by thermally decomposing ozone gas molecules. The gas sensor includes a miniature gas sensor such as a metal-oxide (MOX) gas sensor.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: February 23, 2021
    Assignee: Apple Inc.
    Inventors: Michael K. Brown, Miaolei Yan, Roberto M. Ribeiro
  • Publication number: 20200319082
    Abstract: Various sensors, including particulate matter sensors, are described. One particulate matter sensor includes a self-mixing interferometry sensor and a set of one or more optical elements. The set of one or more optical elements is positioned to receive an optical emission of the self-mixing interferometry sensor, split the optical emission into multiple beams, and direct each beam of the multiple beams in a different direction. The self-mixing interferometry sensor is configured to generate particle speed information for particles passing through respective measurement regions of the multiple beams.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 8, 2020
    Inventors: Mehmet Mutlu, Miaolei Yan, Michael K. Brown, Richard Yeh
  • Publication number: 20200237947
    Abstract: A portable communication device includes an apparatus for environmental sensing. The apparatus includes a housing, one or more environmental sensors and an ozone source. The housing includes one or more ports for allowing air flow between the surrounding environment and a cavity of the housing. The environmental sensors are coupled to the housing and can sense an environmental agent included in the air flow. The ozone source can generate ozone gas within the cavity of the housing to decompose unwanted organic compounds inside the port.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Inventors: Michael K. BROWN, Ashwin Balasubramanian, Miaolei Yan
  • Publication number: 20200237940
    Abstract: A portable communication device includes an apparatus for environmental sensing. The apparatus includes a housing, one or more environmental sensors and an optical source. The housing includes one or more ports for allowing air flow between the surrounding environment and a cavity of the housing. The environmental sensors are coupled to the housing and can sense an environmental agent included in the air flow. The optical source can illuminate the cavity of the housing to decompose unwanted organic compounds inside the port.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Inventors: Miaolei YAN, Michael K. BROWN, Richard YEH
  • Patent number: 10462544
    Abstract: A portable communication device includes a transducer enclosed in an enclosure. An opening allows flow of air between the transducer enclosed in the enclosure and a surrounding environment. The enclosure protects the transducer from misreading due to occlusion of environmental aggressors on the transducer. The enclosure is configured to repel the environmental aggressors away from a surface of the transducer and to keep a portion of the opening unclogged to maintain an air flow to the transducer.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: October 29, 2019
    Assignee: Apple Inc.
    Inventors: Miaolei Yan, David MacNeil, Michael K. Brown, Richard Yeh
  • Publication number: 20190265183
    Abstract: A portable communication device may include a gas sensor enclosed in an enclosure, a port to allow flow of air into and out of the enclosure, and a light source disposed on an internal surface of the enclosure. The light source is operable to facilitate generation of ozone gas within the enclosure. The enclosure may contain a heating element that allows baseline calibration of the gas sensor by thermally decomposing ozone gas molecules. The gas sensor includes a miniature gas sensor such as a metal-oxide (MOX) gas sensor.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 29, 2019
    Inventors: Michael K. BROWN, Miaolei Yan, Roberto M. Ribeiro
  • Publication number: 20190257803
    Abstract: A portable communication device includes a first gas sensor, one or more second gas sensors, at least one port and a calibration module. The first gas sensor is disposed on a first hotplate and is enclosed in an enclosure. The one or more second gas sensors are disposed on one or more second hotplates and are also enclosed in the enclosure. The ports can allow flow of air into and out of the enclosure. The second gas sensors are stable gas sensors, which are used by the calibration module to calibrate the first gas sensor.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 22, 2019
    Inventors: Michael K. BROWN, Roham SOLASI, Miaolei YAN
  • Publication number: 20190058934
    Abstract: A portable communication device includes a transducer enclosed in an enclosure. An opening allows flow of air between the transducer enclosed in the enclosure and a surrounding environment. The enclosure protects the transducer from misreading due to occlusion of environmental aggressors on the transducer. The enclosure is configured to repel the environmental aggressors away from a surface of the transducer and to keep a portion of the opening unclogged to maintain an air flow to the transducer.
    Type: Application
    Filed: August 2, 2018
    Publication date: February 21, 2019
    Inventors: Miaolei Yan, David MacNeil, Michael K. Brown, Richard Yeh
  • Patent number: 9652629
    Abstract: A system and method for selectively securing data from unauthorized access on a client device storing a plurality of data types with reference to an authorization level indicated in a command. A command is received at a client device comprising an authorization level indicator. Based on at least one predefined rule, which may be implemented in an IT policy stored at the client device, each of the plurality of data types to be secured is determined, and then the data corresponding to those types is secured. The data may be secured by encrypting and/or deleting the data at the client device. The predefined rules associated with each authorization level may be configured by a user or administrator having an authorization level that exceeds the associated authorization level.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: May 16, 2017
    Assignee: BlackBerry Limited
    Inventors: Michael K. Brown, Michael S. Brown, Herbert A. Little, Scott W. Totzke
  • Patent number: 9621352
    Abstract: A system and method for verifying a digital signature on a certificate, which may be used in the processing of encoded messages. In one embodiment, when a digital signature is successfully verified in a signature verification operation, the public key used to verify that digital signature is cached. When a subsequent attempt to verify the digital signature is made, the public key to be used to verify the digital signature is compared to the cached key. If the keys match, the digital signature can be successfully verified without requiring that a signature verification operation in which some data is decoded using the public key be performed.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: April 11, 2017
    Assignee: BLACKBERRY LIMITED
    Inventors: Michael K. Brown, Michael S. Brown
  • Patent number: 9503992
    Abstract: Different target transmit powers are determined for different wireless transmissions from a wireless device. The target transmit power of a wireless transmission may depend upon whether any transmitters other than the device to which the wireless transmission is to be sent are within range of the sending wireless device. The target transmit power of a wireless transmission may be based, at least in part, on a current location of a device to which one or more frames carried by the wireless transmission are addressed. The target transmit power of a wireless transmission may be based, at least in part, on confidentiality of data carried by the wireless transmission.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: November 22, 2016
    Assignee: BlackBerry Limited
    Inventors: Michael K. Brown, Scott Totzke, Herb Little, Neil Adams, Michael S. Brown
  • Patent number: 9398023
    Abstract: Systems and methods for processing encoded messages within a wireless communications system are disclosed. A server within the wireless communications system determines whether the size of an encoded message is too large for a wireless communications device. If the message is too large, the server removes part of the message and sends an abbreviated message to the wireless device, together with additional information relating to processing of the encoded message, such as, for example, hash context values, that assist the wireless communications device in verifying the abbreviated message.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: July 19, 2016
    Assignee: BlackBerry Limited
    Inventors: Michael K. Brown, Michael S. Brown, Neil P. Adams, Michael G. Kirkup, Herbert A. Little
  • Patent number: 9237148
    Abstract: An apparatus and method of displaying a message on a display of a computing device. The message comprises at least a first attachment. At least a portion of the message is displayed to a user. The displayed portion comprises an identifier for the first attachment. In one embodiment, a security encoding indicator is associated with the identifier for the first attachment and displayed to the user. If a security encoding has been applied to the first attachment, the security encoding indicator indicates the security encoding applied to the first attachment.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: January 12, 2016
    Assignee: BlackBerry Limited
    Inventors: Michael K. Brown, Michael G. Kirkup, Michael S. Brown
  • Publication number: 20150339495
    Abstract: A system and method for selectively securing data from unauthorized access on a client device storing a plurality of data types with reference to an authorization level indicated in a command. A command is received at a client device comprising an authorization level indicator. Based on at least one predefined rule, which may be implemented in an IT policy stored at the client device, each of the plurality of data types to be secured is determined, and then the data corresponding to those types is secured. The data may be secured by encrypting and/or deleting the data at the client device. The predefined rules associated with each authorization level may be configured by a user or administrator having an authorization level that exceeds the associated authorization level.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Applicant: BlackBerry Limited
    Inventors: Michael K. Brown, Michael S. Brown, Herbert A. Little, Scott W. Totzke
  • Publication number: 20150334120
    Abstract: Systems and methods for processing encoded messages within a wireless communications system are disclosed. A server within the wireless communications system determines whether the size of an encoded message is too large for a wireless communications device. If the message is too large, the server removes part of the message and sends an abbreviated message to the wireless device, together with additional information relating to processing of the encoded message, such as, for example, hash context values, that assist the wireless communications device in verifying the abbreviated message.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Applicant: BlackBerry Limited
    Inventors: Michael K. Brown, Michael S. Brown, Neil P. Adams, Michael G. Kirkup, Herbert A. Little
  • Patent number: 9143323
    Abstract: A cryptographic key is used to secure a communication link between a first device and a second device. Generating the cryptographic key is accomplished by a) generating a first cryptographic key, b) generating a second cryptographic key, c) applying a hash function to packets transmitted over the communication link to create a hash result, and d) applying the hash function to the first cryptographic key, the second cryptographic key and the hash result.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: September 22, 2015
    Assignee: BLACKBERRY LIMITED
    Inventors: Michael K. Brown, Herb Little, Michael S. Brown, Neil Adams, Michael McCallum, Dinah Davis