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).
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Publication number: 20240080113Abstract: Certain aspects of the present disclosure provide a method of wireless communications at a wireless node, comprising measuring one or more radio frequency (RF) performance parameters at the wireless node and tuning one or more transmission parameters based on the measurement.Type: ApplicationFiled: September 2, 2022Publication date: March 7, 2024Inventors: Chan Hong PARK, Beomsup KIM, Kwan-Woo KIM, Hao-Jen CHENG
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Patent number: 11631614Abstract: Certain aspects of the present disclosure are generally directed to techniques and apparatus for adjusting capacitance in one or more metal-insulator-metal (MIM) capacitors in an effort to reduce capacitance variation between semiconductor devices and improve yield during fabrication. One example method for fabricating a semiconductor device generally includes measuring a capacitance value of a MIM capacitor of the semiconductor device, determining the measured capacitance value of the MIM capacitor is above a target capacitance value for the MIM capacitor, and selectively rupturing a set of connections in the MIM capacitor based on the measured capacitance value. Selectively rupturing the set of connections in the MIM capacitor may reduce the capacitance value of the MIM capacitor to a value approximately that of the target capacitance value.Type: GrantFiled: November 29, 2021Date of Patent: April 18, 2023Assignee: QUALCOMM IncorporatedInventors: Jonghae Kim, Jin-Su Ko, Beomsup Kim, Periannan Chidambaram
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Publication number: 20220109405Abstract: A distributed active, power combining amplifier including at least one main amplifier having a first main portion and a second main portion, at least one peaking amplifier having a first peaking portion and a second peaking portion, and a transformer having a primary side and a secondary side, the primary side having at least a first primary segment, a second primary segment, a third primary segment and a fourth primary segment, wherein the first main portion is coupled to the first primary segment and the second primary segment, the first peaking portion is coupled to the first primary segment or the second primary segment, the second main portion is coupled to the third primary segment and the fourth primary segment, and the second peaking portion is coupled to the third primary segment or the fourth primary segment in a symmetric architecture.Type: ApplicationFiled: September 30, 2021Publication date: April 7, 2022Inventors: Alireza KHALILI, Amir ZIABASHARHAGH, Beomsup KIM
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Publication number: 20220084883Abstract: Certain aspects of the present disclosure are generally directed to techniques and apparatus for adjusting capacitance in one or more metal-insulator-metal (MIM) capacitors in an effort to reduce capacitance variation between semiconductor devices and improve yield during fabrication. One example method for fabricating a semiconductor device generally includes measuring a capacitance value of a MIM capacitor of the semiconductor device, determining the measured capacitance value of the MIM capacitor is above a target capacitance value for the MIM capacitor, and selectively rupturing a set of connections in the MIM capacitor based on the measured capacitance value. Selectively rupturing the set of connections in the MIM capacitor may reduce the capacitance value of the MIM capacitor to a value approximately that of the target capacitance value.Type: ApplicationFiled: November 29, 2021Publication date: March 17, 2022Inventors: Jonghae KIM, Jin-Su KO, Beomsup KIM, Periannan CHIDAMBARAM
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Patent number: 11211290Abstract: Certain aspects of the present disclosure are generally directed to techniques and apparatus for adjusting capacitance in one or more metal-insulator-metal (MIM) capacitors in an effort to reduce capacitance variation between semiconductor devices and improve yield during fabrication. One example method for fabricating a semiconductor device generally includes measuring a capacitance value of a MIM capacitor of the semiconductor device, determining the measured capacitance value of the MIM capacitor is above a target capacitance value for the MIM capacitor, and selectively rupturing a set of connections in the MIM capacitor based on the measured capacitance value. Selectively rupturing the set of connections in the MIM capacitor may reduce the capacitance value of the MIM capacitor to a value approximately that of the target capacitance value.Type: GrantFiled: March 17, 2020Date of Patent: December 28, 2021Assignee: Qualcomm IncorporatedInventors: Jonghae Kim, Jin-Su Ko, Beomsup Kim, Periannan Chidambaram
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Publication number: 20210296170Abstract: Certain aspects of the present disclosure are generally directed to techniques and apparatus for adjusting capacitance in one or more metal-insulator-metal (MIM) capacitors in an effort to reduce capacitance variation between semiconductor devices and improve yield during fabrication. One example method for fabricating a semiconductor device generally includes measuring a capacitance value of a MIM capacitor of the semiconductor device, determining the measured capacitance value of the MIM capacitor is above a target capacitance value for the MIM capacitor, and selectively rupturing a set of connections in the MIM capacitor based on the measured capacitance value. Selectively rupturing the set of connections in the MIM capacitor may reduce the capacitance value of the MIM capacitor to a value approximately that of the target capacitance value.Type: ApplicationFiled: March 17, 2020Publication date: September 23, 2021Inventors: Jonghae KIM, Jin-Su KO, Beomsup KIM, Periannan CHIDAMBARAM
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Patent number: 10985793Abstract: An advantageously fast and asynchronous interface is disclosed for the tuning of an RF frontend. The interface transmits a tuning word to the RF frontend that controls a tuning of the RF frontend responsive to a channel index.Type: GrantFiled: October 7, 2019Date of Patent: April 20, 2021Assignee: QUALCOMM IncorporatedInventors: Chan Hong Park, Charles James Persico, Beomsup Kim, Yongwang Ding, Jin-Su Ko
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Publication number: 20210105038Abstract: An advantageously fast and asynchronous interface is disclosed for the tuning of an RF frontend. The interface transmits a tuning word to the RF frontend that controls a tuning of the RF frontend responsive to a channel index.Type: ApplicationFiled: October 7, 2019Publication date: April 8, 2021Inventors: Chan Hong PARK, Charles James PERSICO, Beomsup KIM, Yongwang DING, Jin-Su KO
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Publication number: 20200007098Abstract: 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: ApplicationFiled: August 28, 2018Publication date: January 2, 2020Inventors: Hung-Min Cheng, Ara Bicakci, Haitao Gan, Shen Wang, Mounir Bohsali, Hedieh Elyasi, Beomsup Kim
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Patent number: 10200097Abstract: 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: GrantFiled: March 27, 2017Date of Patent: February 5, 2019Assignee: QUALCOMM IncorporatedInventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang, Youhan Kim
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Publication number: 20170325169Abstract: 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: ApplicationFiled: March 2, 2017Publication date: November 9, 2017Inventors: Mohammad EMADI, Alireza KHALILI, Mazhareddin TAGHIVAND, Youhan KIM, Kai DIETZE, Michael KOHLMANN, James GARDNER, Tevfik YUCEK, Beomsup KIM
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Patent number: 9781560Abstract: 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: GrantFiled: October 13, 2015Date of Patent: October 3, 2017Assignee: QUALCOMM IncorporatedInventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang
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Publication number: 20170279507Abstract: 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: ApplicationFiled: March 27, 2017Publication date: September 28, 2017Inventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang, Youhan Kim
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Publication number: 20170006422Abstract: 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: ApplicationFiled: October 13, 2015Publication date: January 5, 2017Inventors: Beomsup Kim, Ning Zhang, Xiaoxin Zhang
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Patent number: 9326171Abstract: 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: GrantFiled: March 10, 2014Date of Patent: April 26, 2016Assignee: QUALCOMM IncorporatedInventors: Michael Kohlmann, Charles James Persico, Beomsup Kim
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Publication number: 20150257022Abstract: 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: ApplicationFiled: March 10, 2014Publication date: September 10, 2015Applicant: Qualcomm IncorporatedInventors: Michael Kohlmann, Charles James Persico, Beomsup Kim
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Patent number: 8818282Abstract: 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: GrantFiled: January 25, 2012Date of Patent: August 26, 2014Assignee: QUALCOMM IncorporatedInventors: Beomsup Kim, Tzu-Wang Pan, Young Gon Kim
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Patent number: 8687752Abstract: 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: GrantFiled: November 1, 2011Date of Patent: April 1, 2014Assignee: QUALCOMM IncorporatedInventors: Dongmin Park, Jafar Savoj, Beomsup Kim
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Patent number: 8462754Abstract: 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: GrantFiled: June 7, 2010Date of Patent: June 11, 2013Assignee: QUALCOMM, IncorporatedInventors: Beomsup Kim, Charles J Persico
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Patent number: 8451759Abstract: 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: GrantFiled: May 19, 2008Date of Patent: May 28, 2013Assignee: QUALCOMM IncorporatedInventors: Michael Kohlmann, Tae Hea Nahm, Beomsup Kim, Cormac Conroy