Patents by Inventor Somsack Sychaleun
Somsack Sychaleun 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: 11936348Abstract: A transistor package for a power amplifier is provided. The transistor package includes a plurality of radio frequency, RF, paths that includes a first RF path and second RF path. Each RF path includes a transistor-carrying die and at least one impedance element. The transistor package includes a circuit portion electrically coupling a first impedance element in the first RF path to a second impedance element in the second RF path where the circuit portion includes at least one resistor.Type: GrantFiled: March 20, 2019Date of Patent: March 19, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Rob Salmond, Carl Conradi, Somsack Sychaleun
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Publication number: 20220021355Abstract: A transistor package for a power amplifier is provided. The transistor package includes a plurality of radio frequency, RF, paths that includes a first RF path and second RF path. Each RF path includes a transistor-carrying die and at least one impedance element. The transistor package includes a circuit portion electrically coupling a first impedance element in the first RF path to a second impedance element in the second RF path where the circuit portion includes at least one resistor.Type: ApplicationFiled: March 20, 2019Publication date: January 20, 2022Inventors: Rob SALMOND, Carl CONRADI, Somsack SYCHALEUN
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Patent number: 10944378Abstract: Duplexers for high power applications are disclosed. In some embodiments, a duplexer includes 2N band pass filters, where N is an integer greater than 1. The 2N band pass filters each have an input and an output and are in an electrically parallel configuration. The duplexer includes a first adaptation circuit configured to couple a transmit signal received from a transmitter to each one of the 2N band pass filters. The duplexer includes a second adaptation circuit configured to couple outputs of the 2N band pass filters to an antenna, the second adaptation circuit providing an isolated path between the antenna and a receiver.Type: GrantFiled: May 5, 2020Date of Patent: March 9, 2021Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Chunyun Jian, Somsack Sychaleun
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Publication number: 20200266794Abstract: Duplexers for high power applications are disclosed. In some embodiments, a duplexer includes 2N band pass filters, where N is an integer greater than 1. The 2N band pass filters each have an input and an output and are in an electrically parallel configuration. The duplexer includes a first adaptation circuit configured to couple a transmit signal received from a transmitter to each one of the 2N band pass filters. The duplexer includes a second adaptation circuit configured to couple outputs of the 2N band pass filters to an antenna, the second adaptation circuit providing an isolated path between the antenna and a receiver.Type: ApplicationFiled: May 5, 2020Publication date: August 20, 2020Inventors: Chunyun JIAN, Somsack SYCHALEUN
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Patent number: 10686424Abstract: Duplexers for high power applications are disclosed. In some embodiments, a duplexer includes 2N band pass filters, where N is an integer greater than 1. The 2N band pass filters each have an input and an output and are in an electrically parallel configuration. The duplexer includes a first adaptation circuit configured to couple a transmit signal received from a transmitter to each one of the 2N band pass filters. The duplexer includes a second adaptation circuit configured to couple outputs of the 2N band pass filters to an antenna, the second adaptation circuit providing an isolated path between the antenna and a receiver.Type: GrantFiled: November 12, 2015Date of Patent: June 16, 2020Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Chunyun Jian, Somsack Sychaleun
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Publication number: 20180331671Abstract: Duplexers for high power applications are disclosed. In some embodiments, a duplexer includes 2N band pass filters, where N is an integer greater than 1. The 2N band pass filters each have an input and an output and are in an electrically parallel configuration. The duplexer includes a first adaptation circuit configured to couple a transmit signal received from a transmitter to each one of the 2N band pass filters. The duplexer includes a second adaptation circuit configured to couple outputs of the 2N band pass filters to an antenna, the second adaptation circuit providing an isolated path between the antenna and a receiver.Type: ApplicationFiled: November 12, 2015Publication date: November 15, 2018Inventors: Chunyun JIAN, Somsack SYCHALEUN
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Patent number: 10044375Abstract: A multi-band transmitter circuit may include a multi-port network configured to divide an input multi-band signal comprising signal components at each of a plurality of frequency bands into a plurality of output multi-band signals. The multi-band transmitter circuit may also include a plurality of band-specific circulator paths. Each band-specific circulator path includes a circulator configured to receive the respective output multi-band signal and operate at a respective one of the frequency bands to provide a respective band-specific signal. The multi-band transmitter circuit further includes a filter circuit that includes a plurality of band-specific filter elements. Each band-specific filter element is coupled to a corresponding circulator and configured to receive the respective band-specific signal and operate at the same frequency band as the corresponding circulator to provide a filtered band-specific signal for transmission.Type: GrantFiled: January 30, 2015Date of Patent: August 7, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Bi Pham, Buu Dam, Chunyun Jian, Somsack Sychaleun
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Publication number: 20180034486Abstract: A multi-band transmitter circuit may include a multi-port network configured to divide an input multi-band signal comprising signal components at each of a plurality of frequency bands into a plurality of output multi-band signals. The multi-band transmitter circuit may also include a plurality of band-specific circulator paths. Each band-specific circulator path includes a circulator configured to receive the respective output multi-band signal and operate at a respective one of the frequency bands to provide a respective band-specific signal. The multi-band transmitter circuit further includes a filter circuit that includes a plurality of band-specific filter elements. Each band-specific filter element is coupled to a corresponding circulator and configured to receive the respective band-specific signal and operate at the same frequency band as the corresponding circulator to provide a filtered band-specific signal for transmission.Type: ApplicationFiled: January 30, 2015Publication date: February 1, 2018Inventors: Bi Pham, Buu Dam, Chunyun Jian, Somsack Sychaleun
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Publication number: 20170317711Abstract: A method and apparatus for routing transmit and receive signals in a radio RF front end. According to one aspect, the disclosure provides a multiplexer method and apparatus for routing transmit signals to an antenna and routing amplified receive signals to a receiver. The multiplexer includes a first hybrid coupler having a first frequency response and at least one other hybrid coupler having a second frequency response. The at least one other hybrid coupler is coupled to the first hybrid coupler by a first and second splitters each cascaded with a set of amplifying circuits for balanced amplification. In some embodiments, the second frequency response complements the first frequency response to increase cancellation of two signals arriving at an output port of the at least one other hybrid coupler from two different paths through the first and the at least one other hybrid couplers.Type: ApplicationFiled: October 21, 2014Publication date: November 2, 2017Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Chunyun JIAN, Wei LIU, Somsack SYCHALEUN
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Patent number: 9497061Abstract: Systems and methods for characterizing an undersampled receiver generally comprise, in one embodiment, providing one or more probe signals to an input of an undersampled receiver. Each of the one or more probe signals has selective frequency components that ensure that aliases in a corresponding output signal of the undersampled receiver are unique. The undersampled receiver is then characterized based on the output signal(s) of the undersampled receiver. The selective frequency components of the one or more probe signals enable un-aliasing of the one or more output signals of the undersampled receiver and, as such, the undersampled receiver can be characterized.Type: GrantFiled: January 30, 2013Date of Patent: November 15, 2016Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Bradley John Morris, Somsack Sychaleun
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Patent number: 9484887Abstract: A method and system for an acoustic wave band reject filter are disclosed. According to one aspect, an acoustic wave band reject filter includes a substrate and a plurality of acoustic wave band reject filter blocks. The substrate includes bonding pads formed on the substrate. Each one of the plurality of acoustic wave band reject filter blocks is fixed on a separate die. Each separate die has solder balls on a side of the die facing the substrate. The solder balls are positioned to electrically connect the bonding pads formed on the substrate to positions on each of the die.Type: GrantFiled: December 26, 2012Date of Patent: November 1, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chunyun Jian, Somsack Sychaleun
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Patent number: 9252722Abstract: The output of a carrier amplifier circuit in a Doherty amplifier is coupled to the summing node so that the impedance observed by the carrier amplifier's output is approximately equal to the load impedance at the combining node when the load impedance is not modulated. In an example non-inverting configuration, a power amplifier circuit is configured to provide an amplified signal to a load at a summing node, where the load has a first impedance when not load-modulated. The power amplifier circuit includes a splitter network arranged to receive the input signal and to split the input signal to provide a carrier input signal and a peaking input signal, a carrier amplifier path configured to amplify the carrier input signal in a full-power mode and in a first backoff mode, and a peaking amplifier path configured to amplify the peaking input signal in at least the full-power mode.Type: GrantFiled: December 20, 2013Date of Patent: February 2, 2016Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Bi Pham, Somsack Sychaleun
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Patent number: 9236898Abstract: Transmitter observation receivers and methods are described that can predistortion-compensate transmitters capable of operating in multiple communication bands and frequency ranges. Such observation receivers and method involve generating at least one compensation signal such that a signal to be transmitted that is within a bandwidth that simultaneously encompasses multiple frequency ranges is compensated.Type: GrantFiled: December 23, 2014Date of Patent: January 12, 2016Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Bradley John Morris, Somsack Sychaleun
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Patent number: 9160302Abstract: A method and system for an acoustic wave band reject filter are disclosed. According to one aspect, an acoustic wave band reject filter includes a substrate and a plurality of acoustic wave band reject filter circuit blocks. The substrate includes bonding pads formed on the substrate. Each one of the plurality of acoustic wave band reject filter circuit blocks is fixed on a separate die. Each separate die has solder balls on a side of the die facing the substrate. The solder balls are positioned to electrically connect the bonding pads formed on the substrate to electrodes of the dies.Type: GrantFiled: March 7, 2013Date of Patent: October 13, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Chunyun Jian, Somsack Sychaleun
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Publication number: 20150180428Abstract: The output of a carrier amplifier circuit in a Doherty amplifier is coupled to the summing node so that the impedance observed by the carrier amplifier's output is approximately equal to the load impedance at the combining node when the load impedance is not modulated. In an example non-inverting configuration, a power amplifier circuit is configured to provide an amplified signal to a load at a summing node, where the load has a first impedance when not load-modulated. The power amplifier circuit includes a splitter network arranged to receive the input signal and to split the input signal to provide a carrier input signal and a peaking input signal, a carrier amplifier path configured to amplify the carrier input signal in a full-power mode and in a first backoff mode, and a peaking amplifier path configured to amplify the peaking input signal in at least the full-power mode.Type: ApplicationFiled: December 20, 2013Publication date: June 25, 2015Inventors: Bi Pham, Somsack Sychaleun
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Publication number: 20150110223Abstract: Transmitter observation receivers and methods are described that can predistortion-compensate transmitters capable of operating in multiple communication bands and frequency ranges. Such observation receivers and method involve generating at least one compensation signal such that a signal to be transmitted that is within a bandwidth that simultaneously encompasses multiple frequency ranges is compensated.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Inventors: Bradley John MORRIS, Somsack SYCHALEUN
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Publication number: 20140213206Abstract: Systems and methods for characterizing an undersampled receiver are disclosed. In one embodiment, one or more probe signals are provided to an input of an undersampled receiver. Each of the one or more probe signals has selective frequency components that ensure that aliases in a corresponding output signal of the undersampled receiver are unique. The undersampled receiver is then characterized based on the output signal(s) of the undersampled receiver. The selective frequency components of the one or more probe signals enable un-aliasing of the one or more output signals of the undersampled receiver and, as such, the undersampled receiver can be characterized.Type: ApplicationFiled: January 30, 2013Publication date: July 31, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Bradley John Morris, Somsack Sychaleun
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Publication number: 20140145799Abstract: A method and system for an acoustic wave band reject filter are disclosed. According to one aspect, an acoustic wave band reject filter includes a substrate and a plurality of acoustic wave band reject filter blocks. The substrate includes bonding pads formed on the substrate. Each one of the plurality of acoustic wave band reject filter blocks is fixed on a separate die. Each separate die has solder balls on a side of the die facing the substrate. The solder balls are positioned to electrically connect the bonding pads formed on the substrate to positions on each of the die.Type: ApplicationFiled: December 26, 2012Publication date: May 29, 2014Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Chunyun JIAN, Somsack SYCHALEUN
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Publication number: 20140029683Abstract: Transmitter observation receivers and methods are described that can predistortion-compensate transmitters capable of operating in multiple communication bands and frequency ranges. Such observation receivers and method involve generating at least one compensation signal such that a signal to be transmitted that is within a bandwidth that simultaneously encompasses multiple frequency ranges is compensated.Type: ApplicationFiled: July 26, 2012Publication date: January 30, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Bradley John Morris, Somsack Sychaleun
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Patent number: 8452333Abstract: The present invention facilitates the reduction of cabling required in a base station environment. When receive diversity is employed, main and diversity antennas are used to receive common signals at different locations. The signals received at the main and diversity antennas are combined with one another in the masthead and transmitted over a single feeder cable to a base housing for further processing. Thus, signals that were normally sent over separate feeder cables and combined in the base housing are combined in the masthead and sent over a single feeder cable. The technique can be replicated for each sector provided by the base station environment.Type: GrantFiled: December 12, 2005Date of Patent: May 28, 2013Assignee: Apple Inc.Inventors: Somsack Sychaleun, Gregory Carleton, Steve Beaudin