Patents by Inventor Sean Timothy Nicolson
Sean Timothy Nicolson 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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Patent number: 9860760Abstract: A device implementing the subject scalable radio frequency communication system includes one or more primary radio frequency integrated circuits (RFICs) and at least one secondary RFIC. Each of the one or more primary RFICs is configured to receive an intermediate frequency (IF) signal from a baseband processor, upconvert the IF signal to a radio frequency (RF) signal, and transmit the RF signal to one or more secondary RFICs. The secondary RFICs under each of the one or more primary RFICs are configured to receive the RF signal from the corresponding primary RFIC, phase shift and amplify the RF signal, and transmit the RF signal via a plurality of antenna elements.Type: GrantFiled: November 25, 2015Date of Patent: January 2, 2018Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Alireza Tarighat Mehrabani, Michael Boers, Masoud Kahrizi, Tirdad Sowlati, Bagher Afshar, Payam Torab Jahromi, Sean Timothy Nicolson, Brima Babatunde Ibrahim
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Patent number: 9537584Abstract: The calibration method, performed on a phased array device, wherein the method initiates a test signal and looping back a plurality of channel responses corresponding to the channel elements through the transmission line to a calibration circuit in the phased array device, wherein each of the channel responses is obtained when one of the channel elements is turned on, and the rest of the channel elements are turned off. The method further calculates a characteristic value corresponding to the transmission line based on the obtained channel responses of the channel elements, and adjusts a channel parameter of one of the channel elements based on the characteristic value of the transmission line.Type: GrantFiled: June 9, 2015Date of Patent: January 3, 2017Assignee: MEDIATEK SINGAPORE PTE. PTD.Inventors: Sean Timothy Nicolson, ChuanKang Liang, Jing-Hong Conan Zhan
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Publication number: 20160150542Abstract: A device implementing the subject scalable radio frequency communication system includes one or more primary radio frequency integrated circuits (RFICs) and at least one secondary RFIC. Each of the one or more primary RFICs is configured to receive an intermediate frequency (IF) signal from a baseband processor, upconvert the IF signal to a radio frequency (RF) signal, and transmit the RF signal to one or more secondary RFICs. The secondary RFICs under each of the one or more primary RFICs are configured to receive the RF signal from the corresponding primary RFIC, phase shift and amplify the RF signal, and transmit the RF signal via a plurality of antenna elements.Type: ApplicationFiled: November 25, 2015Publication date: May 26, 2016Inventors: Alireza TARIGHAT MEHRABANI, Michael BOERS, Masoud KAHRIZI, Tirdad SOWLATI, Bagher AFSHAR, Payam TORAB JAHROMI, Sean Timothy NICOLSON, Brima Babatunde IBRAHIM
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Publication number: 20150270911Abstract: The calibration method, performed on a phased array device, wherein the method initiates a test signal and looping back a plurality of channel responses corresponding to the channel elements through the transmission line to a calibration circuit in the phased array device, wherein each of the channel responses is obtained when one of the channel elements is turned on, and the rest of the channel elements are turned off. The method further calculates a characteristic value corresponding to the transmission line based on the obtained channel responses of the channel elements, and adjusts a channel parameter of one of the channel elements based on the characteristic value of the transmission line.Type: ApplicationFiled: June 9, 2015Publication date: September 24, 2015Inventors: Sean Timothy NICOLSON, ChuanKang LIANG, Jing-Hong Conan ZHAN
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Patent number: 9088448Abstract: The calibration method, performed on a phased array device including channel elements coupled in parallel by a transmission line, has the steps of: obtaining channel responses corresponding to the channel elements through the transmission line, and each of the channel responses is obtained when one of the channel elements is turned on, and the rest of the channel elements are turned off; calculating a characteristic value corresponding to the transmission line based on the obtained channel responses of the channel elements; and adjusting a channel parameter of one of the channel elements based on the characteristic value of the transmission line.Type: GrantFiled: September 12, 2012Date of Patent: July 21, 2015Assignee: MEDIATEK SINGAPORE PTE. LTD.Inventors: Sean Timothy Nicolson, ChuanKang Liang, Jing-Hong Conan Zhan
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Patent number: 8989678Abstract: The transceiver has a transmitter, a receiver, and a three-port network. The transmitter is configured to transmit an outgoing RF signal. The receiver is configured to receive an incoming RF signal. The three-port network includes: a transmission line, configured to have a line length less than a quarter of a wavelength of the incoming RF signal; an antenna port, configured to connect to an antenna; a receiver port, configured to connect the receiver to the antenna port; and a transmitter port, configured to connect the transmitter to the antenna port and the receiver port through the transmission line.Type: GrantFiled: November 21, 2011Date of Patent: March 24, 2015Assignee: Mediatek Inc.Inventors: Sean Timothy Nicolson, Jing-Hong Conan Zhan
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Publication number: 20130156085Abstract: The calibration method, performed on a phased array device including channel elements coupled in parallel by a transmission line, has the steps of: obtaining channel responses corresponding to the channel elements through the transmission line, and each of the channel responses is obtained when one of the channel elements is turned on, and the rest of the channel elements are turned off; calculating a characteristic value corresponding to the transmission line based on the obtained channel responses of the channel elements; and adjusting a channel parameter of one of the channel elements based on the characteristic value of the transmission line.Type: ApplicationFiled: September 12, 2012Publication date: June 20, 2013Applicant: MEDIATEK SINGAPORE PTE. LTD.Inventors: Sean Timothy NICOLSON, ChuanKang LIANG, Jing-Hong Conan ZHAN
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Publication number: 20130005275Abstract: The transceiver has a transmitter, a receiver, and a three-port network. The transmitter is configured to transmit an outgoing RF signal. The receiver is configured to receive an incoming RF signal. The three-port network includes: a transmission line, configured to have a line length less than a quarter of a wavelength of the incoming RF signal; an antenna port, configured to connect to an antenna; a receiver port, configured to connect the receiver to the antenna port; and a transmitter port, configured to connect the transmitter to the antenna port and the receiver port through the transmission line.Type: ApplicationFiled: November 21, 2011Publication date: January 3, 2013Applicant: MEDIATEK INC.Inventors: Sean Timothy Nicolson, Jing-Hong Conan Zhan
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Patent number: 8279019Abstract: An input attenuator may include a first input circuit having an RF_IN+ terminal, a first node, a transmission line, a DC blocking capacitor, a second node, a third node, and an output terminal coupled in series, the first node selectively coupled to ground via a serially coupled capacitor and a first silicon germanium heterojunction bipolar transistor, the second node coupled to ground via a capacitor, and the third node selectively coupled to ground via a DC blocking capacitor, a resistor, and a second silicon germanium heterojunction bipolar transistor coupled in series. The input attenuator may also include a second input circuit parallel to the first input circuit and having structure similar to the first input circuit.Type: GrantFiled: May 10, 2010Date of Patent: October 2, 2012Assignees: MediaTek Singapore Pte. Ltd., International Business Machines CorporationInventors: Sean Timothy Nicolson, Scott Kevin Reynolds
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Publication number: 20110273248Abstract: An input attenuator may include a first input circuit having an RF_IN+ terminal, a first node, a transmission line, a DC blocking capacitor, a second node, a third node, and an output terminal coupled in series, the first node selectively coupled to ground via a serially coupled capacitor and a first silicon germanium heterojunction bipolar transistor, the second node coupled to ground via a capacitor, and the third node selectively coupled to ground via a DC blocking capacitor, a resistor, and a second silicon germanium heterojunction bipolar transistor coupled in series. The input attenuator may also include a second input circuit parallel to the first input circuit and having structure similar to the first input circuit.Type: ApplicationFiled: May 10, 2010Publication date: November 10, 2011Inventors: Sean Timothy Nicolson, Scott Kevin Reynolds