Patents by Inventor Beomsup Kim

Beomsup Kim 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).

  • Publication number: 20200007098
    Abstract: An apparatus is disclosed for dual-mode amplification by varying a load impedance. In an example aspect, the apparatus includes a low-noise amplifier, a first component, a second component, and a switch. The first component has a first input impedance. The second component is coupled between the low-noise amplifier and the first component. The second component has a second input impedance that is greater than the first input impedance. The switch is coupled in parallel with the second component between the low-noise amplifier and the first component. The switch is configured to selectively be in an open state to engage the second component or a closed state to bypass the second component.
    Type: Application
    Filed: August 28, 2018
    Publication date: January 2, 2020
    Inventors: Hung-Min Cheng, Ara Bicakci, Haitao Gan, Shen Wang, Mounir Bohsali, Hedieh Elyasi, Beomsup Kim
  • Patent number: 10200097
    Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may switch antenna array configurations during reception of a packet to determine channel characteristic information for the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. In some cases, the AP may use multiple antenna array configurations to transmit training fields in the preamble of a packet. The AP may receive channel characteristic information for each of the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: February 5, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang, Youhan Kim
  • Publication number: 20170325169
    Abstract: Power conservation in a radio frequency front end of a user equipment (UE) during wireless local area network (WLAN) communication is achieved by adjusting a power mode of the radio frequency front end. In one instance, the UE determines a signal strength of a received frame of a packet during a short training field of a preamble of the received frame. The determining occurs when a WLAN receiver is operating in a low power mode. The UE then switches the WLAN receiver to a high power mode during the short training field of the preamble or during a first segment of a long training field of the preamble when the signal strength is above a predetermined signal strength.
    Type: Application
    Filed: March 2, 2017
    Publication date: November 9, 2017
    Inventors: Mohammad EMADI, Alireza KHALILI, Mazhareddin TAGHIVAND, Youhan KIM, Kai DIETZE, Michael KOHLMANN, James GARDNER, Tevfik YUCEK, Beomsup KIM
  • Patent number: 9781560
    Abstract: Methods, systems, and devices are described for wireless communication. An example method includes receiving, by a first wireless communication device having a plurality of antennas disposed at a localized position, a plurality of fine timing management (FTM) messages from a second wireless communication device. The example method includes transmitting, by the first wireless communication device, a plurality of FTM responses to the second wireless communication device. Each of the plurality of FTM responses may be transmitted using a different antenna of the first wireless communication device. The example method also includes estimating a range between the first wireless communication device and the second wireless communication device based at least in part on the plurality of FTM messages.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: October 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang
  • Publication number: 20170279507
    Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may switch antenna array configurations during reception of a packet to determine channel characteristic information for the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. In some cases, the AP may use multiple antenna array configurations to transmit training fields in the preamble of a packet. The AP may receive channel characteristic information for each of the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 28, 2017
    Inventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang, Youhan Kim
  • Publication number: 20170006422
    Abstract: Methods, systems, and devices are described for wireless communication. An example method includes receiving, by a first wireless communication device having a plurality of antennas disposed at a localized position, a plurality of fine timing management (FTM) messages from a second wireless communication device. The example method includes transmitting, by the first wireless communication device, a plurality of FTM responses to the second wireless communication device. Each of the plurality of FTM responses may be transmitted using a different antenna of the first wireless communication device. The example method also includes estimating a range between the first wireless communication device and the second wireless communication device based at least in part on the plurality of FTM messages.
    Type: Application
    Filed: October 13, 2015
    Publication date: January 5, 2017
    Inventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang
  • Patent number: 9326171
    Abstract: An apparatus includes a first low noise amplifier (LNA) in a first receive path. The apparatus further includes receive circuitry in the first receive path. The receive circuitry is configured to receive an output of the first LNA and to receive an output of a second LNA within a second receive path.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: April 26, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Kohlmann, Charles James Persico, Beomsup Kim
  • Publication number: 20150257022
    Abstract: An apparatus includes a first low noise amplifier (LNA) in a first receive path. The apparatus further includes receive circuitry in the first receive path. The receive circuitry is configured to receive an output of the first LNA and to receive an output of a second LNA within a second receive path.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 10, 2015
    Applicant: Qualcomm Incorporated
    Inventors: Michael Kohlmann, Charles James Persico, Beomsup Kim
  • Patent number: 8818282
    Abstract: An integrated circuit is described. The integrated circuit includes a global positioning system core that generates a GPS clock signal using an inductor-capacitor voltage controlled oscillator. The integrated circuit also includes a transceiver core configured to use the GPS clock signal. The transceiver core may not include a voltage controlled oscillator.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: August 26, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Beomsup Kim, Tzu-Wang Pan, Young Gon Kim
  • Patent number: 8687752
    Abstract: A serial bit stream having a given bit per second rate is received and distributed to a plurality of phase shifted samplers. A multi-phase sampling trigger is generated at a rate lower than the given bit per second rate, and each of the phase shifted samplers is controlled by one of the phases of the multi-phase sampling trigger. The time spacing between phases of the multi-phase sampling trigger is the inverse of the given bit per second rate. The phase of the multi-phase sampling trigger is aligned with the phase of the serial bit, to collectively recover by the plurality of phase shifted samplers a plurality of consecutive bits from the serial bit stream.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 1, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Dongmin Park, Jafar Savoj, Beomsup Kim
  • Patent number: 8462754
    Abstract: A wireless device for receiving composite signals is disclosed. The wireless device includes an antenna. The wireless device also includes a first amplifier coupled to the antenna. The wireless device further includes a second amplifier coupled to the antenna. The wireless device also includes a first receiver. The wireless device further includes a second receiver. The wireless device also includes a first switch that couples the first receiver to the output of either the first amplifier or the second amplifier. The wireless device further includes a second switch that couples the second receiver to the output of either the first amplifier or the second amplifier.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: June 11, 2013
    Assignee: QUALCOMM, Incorporated
    Inventors: Beomsup Kim, Charles J Persico
  • Patent number: 8451759
    Abstract: A WCDMA enabled user equipment device configured to have functions collectively or selectively idle to conserve power. A discontinuous receiver is used to detect and read network messages and report the messages to the computer within the WCDMA enabled user equipment device. The computer then activates functions previously powered down to receive incoming messages for the user of the device. The discontinuous receiver is also used when the device is active to read network messages, freeing a modem of the device to operate on user messaging; and therefore, enhancing user related performance.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: May 28, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Kohlmann, Tae Hea Nahm, Beomsup Kim, Cormac Conroy
  • Patent number: 8441972
    Abstract: A WCDMA enabled user equipment device configured to have functions collectively or selectively idle to conserve power. A discontinuous receiver is used to detect and read network messages and report the messages to the host processor within the WCDMA enabled user equipment device. The host processor then activates functions previously powered down to receive incoming messages for the user of the WCDMA device. The discontinuous receiver is also used when the WCDMA device is active to read network messages, freeing a modem of the device to operate on user messaging; and therefore, enhancing user related performance.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: May 14, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Kohlmann, Tae Hea Nahm, Beomsup Kim, Cormac Conroy
  • Publication number: 20130107987
    Abstract: A serial bit stream having a given bit per second rate is received and distributed to a plurality of phase shifted samplers. A multi-phase sampling trigger is generated at a rate lower than the given bit per second rate, and each of the phase shifted samplers is controlled by one of the phases of the multi-phase sampling trigger. The time spacing between phases of the multi-phase sampling trigger is the inverse of the given bit per second rate.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 2, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Dongmin Park, Jafar Savoj, Beomsup Kim
  • Patent number: 8412116
    Abstract: A system and method are disclosed for transmitting and receiving signals. The method includes receiving a received signal; demodulating the received signal by mixing the received signal with a receiver local oscillator signal generated by a voltage controlled oscillator configured to generate the receiver local oscillator signal; switching the configuration of the voltage controlled oscillator to generate a transmission signal for use by a transmitter; and transmitting a modulated signal derived from the transmission signal.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: April 2, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Beomsup Kim, Cormac S. Conroy
  • Publication number: 20130040583
    Abstract: An integrated circuit is described. The integrated circuit includes a global positioning system core that generates a GPS clock signal using an inductor-capacitor voltage controlled oscillator. The integrated circuit also includes a transceiver core configured to use the GPS clock signal. The transceiver core may not include a voltage controlled oscillator.
    Type: Application
    Filed: January 25, 2012
    Publication date: February 14, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Beomsup Kim, Tzu-Wang Pan, Young Gon Kim
  • Publication number: 20130029611
    Abstract: A multistandard RF transceiver is disclosed that may optionally include selectable mixers; selectable amplifiers; a configurable analog filter; and a configurable analog to digital converter. The multistandard RF transceiver may also include a data interface for sending data to a host controller and a control interface for receiving configuration commands from the host controller. The configuration commands identify a wireless standard that is to be implemented by the RF receiver. An RF processor processes an RF signal wherein the processed RF signal is output to the host controller on the data interface.
    Type: Application
    Filed: January 31, 2012
    Publication date: January 31, 2013
    Inventors: Beomsup Kim, Cormac Conroy
  • Patent number: 8351361
    Abstract: A WCDMA enabled user equipment device configured to have functions collectively or selectively idle to conserve power. A discontinuous receiver is used to detect and read network messages and report the messages to the computer within the WCDMA enabled user equipment device. The computer then activates functions previously powered down to receive incoming messages for the user of the device. The discontinuous receiver is also used when the device is active to read network messages, freeing a modem of the device to operate on user messaging; and therefore, enhancing user related performance.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: January 8, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Kohlmann, Tae Hea Nahm, Beomsup Kim, Cormac Conroy
  • Patent number: 8289837
    Abstract: A wideband telecommunications device with narrow band support. The device may be a receiver having a wireless interface configured to receive combined first and second signals, the first signal having data in a first frequency band and the second signal having data in a second frequency band wider than the first frequency band, wherein the first frequency band is within the second frequency band. The receiver may also be a processing system configured to recover the data in the first signal from the combined first and second signals.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: October 16, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Beomsup Kim, Charles J. Persico
  • Patent number: 8243640
    Abstract: A WCDMA enabled user equipment device configured to have functions collectively or selectively idle to conserve power. A discontinuous receiver is used to detect and read network messages and report the messages to the computer within the WCDMA enabled user equipment device. The computer then activates functions previously powered down to receive incoming messages for the user of the device. The discontinuous receiver is also used when the device is active to read network messages, freeing a modem of the device to operate on user messaging; and therefore, enhancing user related performance.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: August 14, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Kohlmann, Tae Hea Nahm, Beomsup Kim, Cormac Conroy