Patents by Inventor Eric L. Krenz

Eric L. Krenz 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: 10348117
    Abstract: An apparatus, such as a user device, can comprise a battery, a plurality of antennas, a transceiver, a charging pad interface, and a controller. The battery can be configured to power the user device. The plurality of antennas can be configured to send and receive signals to and from a wireless node. The transceiver can be configured to communicate, via the plurality of antennas, with the wireless node. The charging pad interface can be configured to detect that the apparatus is coupled to a charging pad and to receive charging power from the charging pad. The controller can be configured to change a configuration of at least one antenna from the plurality of antennas in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: July 9, 2019
    Assignee: Motorola Mobility LLC
    Inventors: David A. Winkler, Wayne Ballantyne, Eric L. Krenz
  • Patent number: 10135117
    Abstract: An antenna system for implementation in a wireless communication system such as a mobile device, and a wireless communication system employing such an antenna system, and a related methodology, are disclosed herein. In one example embodiment, a mobile device includes a display, a chassis, and one or more electrical components. The display is provided along a front surface of the mobile device, and the chassis has first and second cavities provided along a rear surface of the mobile device, the rear surface being substantially opposite the front surface. Further, the one or more electrical components is or are supported in between the display and the chassis, and the one or more electrical components provide excitation signals to one or both of the first and second cavities so as to cause electrical fields in accordance with a plurality of modes to occur respectively within the cavities at multiple frequencies, respectively.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: November 20, 2018
    Assignee: Motorola Mobility LLC
    Inventors: Matthew J Slater, Mohammed Abdul-Gaffoor, Eric L Krenz, Juan M Martinez, Hugh K Smith
  • Publication number: 20170356980
    Abstract: An electronic communication device performs a method to detect proximity of an object to the device. The method includes determining a set of mutual coupling values for at least one pair of a plurality of antennas arrays of the electronic communication device. Each mutual coupling value indicates an efficiency of a mutual coupling transmission between an antenna element of a first antenna array of a pair of antenna arrays and an antenna element of a second antenna array of the pair of antenna arrays. The method further includes determining object position relative to the plurality of antenna arrays based on the set of mutual coupling values.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 14, 2017
    Inventors: MD Rashidul Islam, Mohammed Abdul-Gaffoor, Eric L. Krenz, Hugh K. Smith
  • Patent number: 9807671
    Abstract: A method and apparatus for wireless communication device connectivity management includes receiving one or more metrics from at least two members of a group whose members are wireless communication devices. The members of the group have agreed to share resources within the group and have their wireless connections controlled by a wireless connectivity entity. The method and apparatus also includes managing the wireless connections of the at least two members by the connectivity management entity, based on the one or more metrics, to share resources between the at least two members.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 31, 2017
    Assignee: Motorola Mobility LLC
    Inventors: Roger W. Ady, Eric L. Krenz, Andrew S. Lundholm, Murali Narasimha
  • Publication number: 20170288300
    Abstract: An antenna system for implementation in a wireless communication system such as a mobile device, and a wireless communication system employing such an antenna system, and a related methodology, are disclosed herein. In one example embodiment, a mobile device includes a display, a chassis, and one or more electrical components. The display is provided along a front surface of the mobile device, and the chassis has first and second cavities provided along a rear surface of the mobile device, the rear surface being substantially opposite the front surface. Further, the one or more electrical components is or are supported in between the display and the chassis, and the one or more electrical components provide excitation signals to one or both of the first and second cavities so as to cause electrical fields in accordance with a plurality of modes to occur respectively within the cavities at multiple frequencies, respectively.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: Matthew J Slater, Mohammed Abdul-Gaffoor, Eric L Krenz, Juan M Martinez, Hugh K Smith
  • Patent number: 9653813
    Abstract: An electronic device (100) includes an antenna system (150) having two antennas (110, 120). A first antenna (110) has a first antenna element (111) positioned near a first corner (191) of a planar, rectangular ground plane (165) and a second antenna element (115) positioned near a second corner of the ground plane that is diagonally across from the first corner. A second antenna (120) has a third antenna element (121) positioned near a third corner (193) of the ground plane that is adjacent to the first corner and a fourth antenna element (125) positioned near a fourth corner (195) of the ground plane that is diagonally across from the third corner. At low-band frequencies, the antenna elements (111, 115) of the first antenna (110) are driven out-of-phase relative to each other. Similarly, at low-band frequencies, the antenna elements (121, 125) of the second antenna (120) are driven out-of-phase relative to each other.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: May 16, 2017
    Assignee: Google Technology Holdings LLC
    Inventors: Hugh K. Smith, Eric L. Krenz, Karan J. Jumani, Andrew A. Efanov
  • Patent number: 9641229
    Abstract: A method and system for reconfiguring over-indexed antenna arrays in mobile devices are provided. For example, the method includes receiving sensor input that indicates an object blocking a first subset of reconfigurable antenna elements but not blocking a second subset of reconfigurable antenna elements of an over-indexed antenna array. The method also includes configuring, based on the sensor input, a number of the antenna elements in the first subset as non-active for radiating energy and a number of the antenna elements in the second subset as active for radiating energy.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: May 2, 2017
    Assignee: Motorola Mobility LLC
    Inventors: MD Rashidul Islam, Eric L Krenz
  • Publication number: 20170098953
    Abstract: An apparatus, such as a user device, can comprise a battery, a plurality of antennas, a transceiver, a charging pad interface, and a controller. The battery can be configured to power the user device. The plurality of antennas can be configured to send and receive signals to and from a wireless node. The transceiver can be configured to communicate, via the plurality of antennas, with the wireless node. The charging pad interface can be configured to detect that the apparatus is coupled to a charging pad and to receive charging power from the charging pad. The controller can be configured to change a configuration of at least one antenna from the plurality of antennas in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 6, 2017
    Inventors: David A. Winkler, Wayne Ballantyne, Eric L. Krenz
  • Patent number: 9608711
    Abstract: Disclosed apparatuses obtain real-time performance measurements and adaptively select multiple-input, multiple-output (MIMO) antennas to improve MIMO antenna performance. A correlation estimator determines an approximation of instantaneous antenna correlation values. One method includes obtaining a channel quality indicator (CQI) measurement for first and second antennas of a mobile device. The method determines a composite CQI for the two antennas and estimates the antenna correlation for the first and second antennas based on the composite CQI. The method can include performing a lookup operation in a CQI table mapping composite CQI to coding rates. The method can include obtaining a signal-to-noise ratio (SNR) measurement for the first and second antennas of the mobile device, and estimating the antenna correlation for the first and second antennas based on the composite CQI and the SNR measurement.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: March 28, 2017
    Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
    Inventors: Krishna K. Bellamkonda, Eric L. Krenz, Nischal Y. Patel, Brett L. Robertson, Istvan J. Szini
  • Publication number: 20170019831
    Abstract: A method and apparatus for wireless communication device connectivity management includes receiving one or more metrics from at least two members of a group whose members are wireless communication devices. The members of the group have agreed to share resources within the group and have their wireless connections controlled by a wireless connectivity entity. The method and apparatus also includes managing the wireless connections of the at least two members by the connectivity management entity, based on the one or more metrics, to share resources between the at least two members.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 19, 2017
    Inventors: Roger W. Ady, Eric L. Krenz, Andrew S. Lundholm, Murali Narasimha
  • Publication number: 20170005707
    Abstract: A method and system for reconfiguring over-indexed antenna arrays in mobile devices are provided. For example, the method includes receiving sensor input that indicates an object blocking a first subset of reconfigurable antenna elements but not blocking a second subset of reconfigurable antenna elements of an over-indexed antenna array. The method also includes configuring, based on the sensor input, a number of the antenna elements in the first subset as non-active for radiating energy and a number of the antenna elements in the second subset as active for radiating energy.
    Type: Application
    Filed: October 30, 2015
    Publication date: January 5, 2017
    Inventors: MD Rashidul Islam, Eric L. Krenz
  • Patent number: 9491706
    Abstract: Aspects of the present disclosure teach decreasing, in a time-averaged regime, the amount of RF energy emitted by a communications device. Generally speaking, the network tells the communications device what power level it should transmit at. If, however, the device determines that it would exceed an emission standard by transmitting at the specified power level for as long as it needs to in order to carry out its transmission duties, then the device can instead decide to transmit at a lower power level. Alternatively (or in combination), the device can, instead of transmitting all the time while it has data to send, only transmit intermittently. In either case, the emitted electromagnetic energy, as averaged over a period of time, is reduced below the maximum allowed by the standard. Later, if possible and necessary, the device can again transmit at a higher power level or more frequently.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: November 8, 2016
    Assignee: Google Technology Holdings LLC
    Inventors: Dean E. Thorson, Steve R. Hauswirth, Eric L. Krenz, Paul J. Moller
  • Publication number: 20160248496
    Abstract: Disclosed apparatuses obtain real time performance measurements and adaptively select MIMO antennas to improve MIMO antenna performance under given conditions. A correlation estimator determines an approximation of instantaneous antenna correlation values. One method includes obtaining a CQI measurement for a first antenna and a second antenna of a mobile device. The method proceeds by determining a composite CQI for the two antennas and estimating the antenna correlation for the first antenna and second antenna using the composite CQI. The method may further include performing a table lookup operation in a CQI table that maps composite CQI including at least a first and second MIMO stream to coding rates. The method may further include obtaining an SNR measurement for the first antenna and the second antenna of the mobile device, and estimating the antenna correlation for the first antenna and second antenna using the composite CQI and the SNR measurement.
    Type: Application
    Filed: August 7, 2014
    Publication date: August 25, 2016
    Inventors: Krishna K. Bellamkonda, Eric L. Krenz, Nichal Y. Patel, Brett L. Robertson, Istvan J. Szini
  • Patent number: 9356672
    Abstract: Apparatuses and methods are disclosed for determining a dominant figure-of-merit for an antenna system comprising a primary antenna, and at least two diversity antennas. The dominant figure-of-merit is determined from at least two figure-of-merit types related to performance of the primary antenna when paired with one or the other of the at least two diversity antennas. The disclosed apparatuses and methods include switching to one or the other of the at least two diversity antennas, to obtain the dominant figure-of-merit, in response to a signal quality metric's relationship to the at least two figure-of-merit types.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: May 31, 2016
    Assignee: Google Technology Holdings LLC
    Inventors: Istvan J. Szini, Krishna K. Bellamkonda, Eric L. Krenz, Nischal Y. Patel, Brett L. Robertson
  • Patent number: 9354698
    Abstract: An electronic device includes a housing enclosing a motion sensor and a first capacitive proximity sensor on a first planar side of the electronic device. A second capacitive proximity sensor on a second planar side of the electronic device within the housing is monitored for determining the differential amount of signal change of the first capacitive proximity sensor relative to the second capacitive proximity sensor.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: May 31, 2016
    Assignee: Google Technology Holdings LLC
    Inventors: Rachid M. Alameh, Eric L. Krenz, Jason P. Wojack
  • Patent number: 9288696
    Abstract: A method and apparatus for obtaining a set of optimized angles of arrival for a corresponding set of radio links. The set of radio links model a radio environment of a wireless unit operating at a particular location within in a radio system. Each radio link represents a different propagation path between the wireless unit and transmitting antenna operating within the radio system. Each optimized angle of arrival represents an angle of arrival of one radio link with reference to the wireless unit. Each probe antenna of a set of probe antennas is positioned at a corresponding angle of the set of optimized angles of arrival. A corresponding set of probe radio signals is transmitted from the set of probe antennas.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: March 15, 2016
    Assignee: Google Technology Holdings LLC
    Inventors: Istvan J. Szini, Eric L. Krenz, John R. Peters
  • Patent number: 9276321
    Abstract: An electronic device (100) includes an antenna system (150) having two antennas (110, 120). A first antenna (110) has a first antenna element (111) positioned outside a first corner (191) of a planar, rectangular ground plane (165) and a second antenna element (115) positioned outside a second corner of the ground plane that is diagonally across from the first corner. A second antenna (120) has a third antenna element (121) positioned near a third corner (193) of the ground plane that is adjacent to the first corner and a fourth antenna element (125) positioned near a fourth corner (195) of the ground plane that is diagonally across from the third corner. At low-band frequencies, the antenna elements (111, 115) of the first antenna (110) are driven out-of-phase relative to each other. Similarly, at low-band frequencies, the antenna elements (121, 125) of the second antenna (120) are driven out-of-phase relative to each other.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 1, 2016
    Assignee: Google Technology Holdings LLC
    Inventors: Hugh K. Smith, Eric L. Krenz, Karan J. Jumani, Andrew A. Efanov
  • Publication number: 20160036508
    Abstract: Apparatuses and methods are disclosed for determining a dominant figure-of-merit for an antenna system comprising a primary antenna, and at least two diversity antennas. The dominant figure-of-merit is determined from at least two figure-of-merit types related to performance of the primary antenna when paired with one or the other of the at least two diversity antennas. The disclosed apparatuses and methods include switching to one or the other of the at least two diversity antennas, to obtain the dominant figure-of-merit, in response to a signal quality metric's relationship to the at least two figure-of-merit types.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 4, 2016
    Inventors: Istvan J. Szini, Krishna K. Bellamkonda, Eric L. Krenz, Nischal Y. Patel, Brett L. Robertson
  • Patent number: 9098789
    Abstract: An electronic device (200) includes a single antenna (211), a communication circuit (202), and a RFID circuit (207). A switch (212) selectively couples the single antenna to one of the communication circuit or the RFID circuit. For example, the RFID circuit can be coupled to the single antenna when the electronic device is OFF, and the communication circuit can be coupled to the single antenna when the electronic device is ON. Accordingly, RFID information can be received from an RFID communication device when the electronic device is OFF. When the electronic device is ON, an interrupt can cause the switch to connect the RFID circuit to the single antenna, sometimes only for less than a predetermined duration.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: August 4, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Hong Zhao, Eric L. Krenz, Pavel A. Shostak
  • Publication number: 20150099473
    Abstract: A method and apparatus for obtaining a set of optimized angles of arrival for a corresponding set of radio links. The set of radio links model a radio environment of a wireless unit operating at a particular location within in a radio system. Each radio link represents a different propagation path between the wireless unit and transmitting antenna operating within the radio system. Each optimized angle of arrival represents an angle of arrival of one radio link with reference to the wireless unit. Each probe antenna of a set of probe antennas is positioned at a corresponding angle of the set of optimized angles of arrival. A corresponding set of probe radio signals is transmitted from the set of probe antennas.
    Type: Application
    Filed: November 21, 2013
    Publication date: April 9, 2015
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Istvan J. Szini, Eric L. Krenz, John R. Peters