Patents by Inventor Zaw Soe
Zaw Soe 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: 10734957Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.Type: GrantFiled: March 13, 2019Date of Patent: August 4, 2020Assignee: Tensorcom, Inc.Inventors: Zaw Soe, Kevin Jing, Steve Gao
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Patent number: 10637517Abstract: Local oscillator (LO) leakage and Image are common and undesirable effects in typical transmitters. Typically, fairly complex hardware and algorithms are used to calibrate and reduce these impairments. A single transistor that draws essentially no dc current and occupies a very small area detects the LO leakage and Image signals. The single transistor operating as a square-law device is used to mix the signals at the input and output ports of a power amplifier. The mixed signal generated by the single transistor enables the simultaneous calibration of the LO leakage and Image Rejection.Type: GrantFiled: September 5, 2018Date of Patent: April 28, 2020Assignee: TensorCom, Inc.Inventors: KhongMeng Tham, Huainan Ma, Zaw Soe, Ricky Lap Kei Cheung
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Patent number: 10476486Abstract: This invention eliminates the need for “capacitor coupling” or “transformer coupling,” and the associated undesirable parasitic capacitance and inductance associated with these coupling techniques when designing high frequency (˜60 GHz) circuits. At this frequency, the distance between two adjacent stages needs to be minimized. A resonant circuit in series with the power or ground leads is used to isolate a biasing signal from a high frequency signal. The introduction of this resonant circuit allows a first stage to be “directly coupled” to a next stage using a metallic trace. The “direct coupling” technique passes both the high frequency signal and the biasing voltage to the next stage. The “direct coupling” approach overcomes the large die area usage when compared to either the “AC coupling” or “transformer coupling” approach since neither capacitors nor transformers are required to transfer the high frequency signals between stages.Type: GrantFiled: July 11, 2017Date of Patent: November 12, 2019Assignee: NantWorks, LLCInventors: Zaw Soe, KhongMeng Tham
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Patent number: 10461703Abstract: A common-source Low Noise Amplifier (LNA) comprises a first spiral inductor coupled to a source of a first transistor, a second spiral inductor coupled to a drain of a second transistor, and a third inductor connecting the first transistor to the second transistor. The third inductor is configurable to enable a first capacitance to be coupled in parallel to form a bandpass filter. The first spiral inductor is configurable to enable a second capacitance to be coupled in parallel to form a resonant circuit. A variation of the LNA further includes a drain of a third transistor coupled to a gate of a fourth transistor with a first width, a source of the third transistor coupled to the resonant circuit, and an oscillator clock configured to operate at a first frequency that enables the third transistor, wherein the third transistor presents a first impedance to the resonant circuit, causing the resonant circuit to have a first bandwidth.Type: GrantFiled: January 31, 2018Date of Patent: October 29, 2019Assignee: NantWorks, LLCInventor: Zaw Soe
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Publication number: 20190214953Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Inventors: Zaw Soe, Kevin Jing, Steve Gao
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Patent number: 10277182Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.Type: GrantFiled: December 6, 2017Date of Patent: April 30, 2019Assignee: TensorCom, Inc.Inventors: Zaw Soe, Kevin Jing, Steve Gao
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Publication number: 20190007076Abstract: Local oscillator (LO) leakage and Image are common and undesirable effects in typical transmitters. Typically, fairly complex hardware and algorithms are used to calibrate and reduce these impairments. A single transistor that draws essentially no dc current and occupies a very small area detects the LO leakage and Image signals. The single transistor operating as a square-law device is used to mix the signals at the input and output ports of a power amplifier. The mixed signal generated by the single transistor enables the simultaneous calibration of the LO leakage and Image Rejection.Type: ApplicationFiled: September 5, 2018Publication date: January 3, 2019Inventors: KhongMeng Tham, Huainan Ma, Zaw Soe, Ricky Lap Kei Cheung
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Patent number: 10103757Abstract: Local oscillator (LO) leakage and Image are common and undesirable effects in typical transmitters. Typically, fairly complex hardware and algorithms are used to calibrate and reduce these impairments. A single transistor that draws essentially no dc current and occupies a very small area detects the LO leakage and Image signals. The single transistor operating as a square-law device is used to mix the signals at the input and output ports of a power amplifier. The mixed signal generated by the single transistor enables the simultaneous calibration of the LO leakage and Image Rejection.Type: GrantFiled: August 25, 2015Date of Patent: October 16, 2018Inventors: KhongMeng Tham, Huainan Ma, Zaw Soe, Ricky Lap Kei Cheung
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Publication number: 20180183391Abstract: A common-source Low Noise Amplifier (LNA) comprises a first spiral inductor coupled to a source of a first transistor, a second spiral inductor coupled to a drain of a second transistor, and a third inductor connecting the first transistor to the second transistor. The third inductor is configurable to enable a first capacitance to be coupled in parallel to form a bandpass filter. The first spiral inductor is configurable to enable a second capacitance to be coupled in parallel to form a resonant circuit. A variation of the LNA further includes a drain of a third transistor coupled to a gate of a fourth transistor with a first width, a source of the third transistor coupled to the resonant circuit, and an oscillator clock configured to operate at a first frequency that enables the third transistor, wherein the third transistor presents a first impedance to the resonant circuit, causing the resonant circuit to have a first bandwidth.Type: ApplicationFiled: January 31, 2018Publication date: June 28, 2018Applicant: Tensorcom, Inc.Inventor: Zaw Soe
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Patent number: 9960948Abstract: A receiver comprises a Low Noise Amplifier (LNA) configured to amplify an input signal and a resonant circuit coupled to the LNA. A first switch couples current from the resonant circuit to a first capacitor integrating a first voltage, wherein the first switch is enabled with a clock signal. A second switch couples current from the resonant circuit to a second capacitor integrating a second voltage, wherein the second switch is enabled with an inverse clock signal. A differential amplifier comprises a positive input for receiving the first voltage and a negative input for receiving the second voltage in order to produce a sum and a difference frequency spectrum between a signal spectrum carried within the current and a frequency of the clock signal.Type: GrantFiled: November 21, 2016Date of Patent: May 1, 2018Assignee: Tensorcom, Inc.Inventor: Zaw Soe
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Publication number: 20180097489Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.Type: ApplicationFiled: December 6, 2017Publication date: April 5, 2018Applicant: Tensorcom, Inc.,Inventors: Zaw Soe, Kevin Jing, Steve Gao
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Patent number: 9893692Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.Type: GrantFiled: November 16, 2016Date of Patent: February 13, 2018Assignee: Tensorcom, Inc.Inventors: Zaw Soe, Kevin Jing, Steve Gao
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Publication number: 20170310308Abstract: This invention eliminates the need for “capacitor coupling” or “transformer coupling,” and the associated undesirable parasitic capacitance and inductance associated with these coupling techniques when designing high frequency (˜60 GHz) circuits. At this frequency, the distance between two adjacent stages needs to be minimized. A resonant circuit in series with the power or ground leads is used to isolate a biasing signal from a high frequency signal. The introduction of this resonant circuit allows a first stage to be “directly coupled” to a next stage using a metallic trace. The “direct coupling” technique passes both the high frequency signal and the biasing voltage to the next stage. The “direct coupling” approach overcomes the large die area usage when compared to either the “AC coupling” or “transformer coupling” approach since neither capacitors nor transformers are required to transfer the high frequency signals between stages.Type: ApplicationFiled: July 11, 2017Publication date: October 26, 2017Applicant: Tensorcom, Inc.,Inventors: Zaw Soe, KhongMeng Tham
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Patent number: 9793880Abstract: This invention eliminates the need for “capacitor coupling” or “transformer coupling,” and the associated undesirable parasitic capacitance and inductance associated with these coupling techniques when designing high frequency (˜60 GHz) circuits. At this frequency, the distance between two adjacent stages needs to be minimized. A resonant circuit in series with the power or ground leads is used to isolate a biasing signal from a high frequency signal. The introduction of this resonant circuit allows a first stage to be “directly coupled” to a next stage using a metallic trace. The “direct coupling” technique passes both the high frequency signal and the biasing voltage to the next stage. The “direct coupling” approach overcomes the large die area usage when compared to either the “AC coupling” or “transformer coupling” approach since neither capacitors nor transformers are required to transfer the high frequency signals between stages.Type: GrantFiled: August 18, 2015Date of Patent: October 17, 2017Assignee: Tensorcom, Inc.Inventors: Zaw Soe, KhongMeng Tham
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Publication number: 20170272109Abstract: Local oscillator (LO) leakage and Image are common and undesirable effects in typical transmitters. Typically, fairly complex hardware and algorithms are used to calibrate and reduce these impairments. A single transistor that draws essentially no dc current and occupies a very small area detects the LO leakage and Image signals. The single transistor operating as a square-law device is used to mix the signals at the input and output ports of a power amplifier. The mixed signal generated by the single transistor enables the simultaneous calibration of the LO leakage and Image Rejection.Type: ApplicationFiled: August 25, 2015Publication date: September 21, 2017Applicant: Tensorcom, Inc.Inventors: KhongMeng Tham, Huainan Ma, Zaw Soe, Ricky Lap Kei Cheung
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Publication number: 20170141746Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.Type: ApplicationFiled: November 16, 2016Publication date: May 18, 2017Applicant: Tensorcom, Inc.,Inventors: Zaw Soe, Kevin Jing, Steve Gao
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Publication number: 20170126464Abstract: A receiver comprises a Low Noise Amplifier (LNA) configured to amplify an input signal and a resonant circuit coupled to the LNA. A first switch couples current from the resonant circuit to a first capacitor integrating a first voltage, wherein the first switch is enabled with a clock signal. A second switch couples current from the resonant circuit to a second capacitor integrating a second voltage, wherein the second switch is enabled with an inverse clock signal. A differential amplifier comprises a positive input for receiving the first voltage and a negative input for receiving the second voltage in order to produce a sum and a difference frequency spectrum between a signal spectrum carried within the current and a frequency of the clock signal.Type: ApplicationFiled: November 21, 2016Publication date: May 4, 2017Applicant: Tensorcom, Inc.Inventor: Zaw Soe
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Patent number: 9503032Abstract: A cascode amplifier circuit comprises a first spiral inductor coupled to a source of a first transistor; a second spiral inductor coupled to a drain of a second transistor; a third inductor connecting the first transistor to the second transistor; a first capacitor coupled in parallel to the third inductor forming a bandpass filter; and a second capacitor coupled in parallel to the second spiral inductor forming a resonant circuit, wherein the resonant circuit oscillates at a center frequency.Type: GrantFiled: February 5, 2016Date of Patent: November 22, 2016Assignee: Tensorcom, Inc.Inventor: Zaw Soe
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Patent number: 9450537Abstract: LO leakage and Image are common and undesirable effects in typical transmitters. Typically, thirty complex hardware and algorithms are used to calibrate and reduce these two impairments. A single transistor that draws essentially no de current and occupies a very small area, is used to detect the LO leakage and Image Rejection signals. The single transistor operating as a square law device, is used to mix the signals at the input and output ports of the power amplifier (PA). The mixed signal generated by the single transistor enables the simultaneous calibration of the LO leakage and Image Rejection.Type: GrantFiled: August 25, 2014Date of Patent: September 20, 2016Assignee: Tensorcom, Inc.Inventors: KhongMeng Tham, Huainan Ma, Zaw Soe, Ricky Lap Kei Cheung
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Publication number: 20160156320Abstract: A cascode amplifier circuit comprises a first spiral inductor coupled to a source of a first transistor; a second spiral inductor coupled to a drain of a second transistor; a third inductor connecting the first transistor to the second transistor; a first capacitor coupled in parallel to the third inductor forming a bandpass filter; and a second capacitor coupled in parallel to the second spiral inductor forming a resonant circuit, wherein the resonant circuit oscillates at a center frequency.Type: ApplicationFiled: February 5, 2016Publication date: June 2, 2016Applicant: Tensorcom, Inc.Inventor: Zaw Soe