Patents by Inventor Albert Chia-Wen JERNG
Albert Chia-Wen JERNG 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: 10122391Abstract: Systems and method provided herein relate to reducing distortion of signals introduced by components on a phase path of a radio frequency system polar architecture. To reduce phase path distortion, a pre-distortion is introduced prior to a distortion caused by the components on the phase path. The pre-distortion in conjunction with the component distortion results in a transmission signal that forms its expected shape.Type: GrantFiled: September 30, 2015Date of Patent: November 6, 2018Assignee: Apple Inc.Inventors: Navid Lashkarian, Ehsan Adabi, Albert Chia-Wen Jerng, Arya Behzad, Ali Parsa
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Patent number: 9787352Abstract: A Radio Frequency (RF) front end system and method are disclosed. The RF front end system comprises an antenna, a matching network coupled to the antenna, a power amplifier (PA) coupled to the matching network via a port on a transmit path, a low noise amplifier (LNA) coupled to the matching network via the port on a receive path and at least one transmit/receive switch (T/R SW) coupled between the port and at least one of the PA and LNA.Type: GrantFiled: May 18, 2015Date of Patent: October 10, 2017Assignee: MEDIATEK INC.Inventors: Yuen Hui Chee, Albert Chia-Wen Jerng
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Publication number: 20170093444Abstract: Systems and method provided herein relate to reducing distortion of signals introduced by components on a phase path of a radio frequency system polar architecture. To reduce phase path distortion, a pre-distortion is introduced prior to a distortion caused by the components on the phase path. The pre-distortion in conjunction with the component distortion results in a transmission signal that forms its expected shape.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: Navid Lashkarian, Ehsan Adabi, Albert Chia-Wen Jerng, Arya Behzad, Ali Parsa
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Patent number: 9397720Abstract: A radio transceiver is disclosed. The transceiver comprises an integrated circuit. The integrated circuit comprises a transmit path; a first switch coupled in series with the output of the transmit path; a receive path; and a second switch coupled as a shunt with the input of the receive path. The transceiver further comprises a plurality of external matching networks coupled to the transmit and receive paths of the integrated circuit to ensure minimal loading from one path to the other. The transceiver also comprises a shared balun for converting differential signals from the plurality of external matching networks to single ended signals; and an antenna to interface with the single ended signals. A method and system in accordance with an embodiment enables tying together the transmit path and the receive paths of a radio transceiver without the need for an external T/R switch.Type: GrantFiled: December 10, 2009Date of Patent: July 19, 2016Assignee: MEDIATEK INC.Inventors: Albert Chia-Wen Jerng, Jen-Wei Ko, Weijun Yao, Eric Chiyuan Lu
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Patent number: 9246535Abstract: The present invention discloses a transmit-receive (TR) front end. The TR front end comprises a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing a voltage swing and a power transmission of the PA; and a TR switch, coupled to the transformer at a first end and coupled to the LNA at a second end, wherein the second end is capable of being coupled to an antenna; wherein the LNA is single ended and there is no transformer between the LNA and the TR switch.Type: GrantFiled: April 9, 2015Date of Patent: January 26, 2016Assignee: MEDIATEK INC.Inventors: Albert Chia-Wen Jerng, Wen-Kai Li, Chien-Cheng Lin
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Publication number: 20160020818Abstract: A Radio Frequency (RF) front end system and method are disclosed. The RF front end system comprises an antenna, a matching network coupled to the antenna, a power amplifier (PA) coupled to the matching network via a port on a transmit path, a low noise amplifier (LNA) coupled to the matching network via the port on a receive path and at least one transmit/receive switch (T/R SW) coupled between the port and at least one of the PA and LNA.Type: ApplicationFiled: May 18, 2015Publication date: January 21, 2016Inventors: Yuen Hui CHEE, Albert Chia-Wen JERNG
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Publication number: 20150222318Abstract: The present invention discloses a transmit-receive (TR) front end. The TR front end comprises a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing a voltage swing and a power transmission of the PA; and a TR switch, coupled to the transformer at a first end and coupled to the LNA at a second end, wherein the second end is capable of being coupled to an antenna; wherein the LNA is single ended and there is no transformer between the LNA and the TR switch.Type: ApplicationFiled: April 9, 2015Publication date: August 6, 2015Inventors: Albert Chia-Wen Jerng, Wen-Kai Li, Chien-Cheng Lin
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Patent number: 9100079Abstract: A transceiver includes: a first transforming network arranged for using a first input impedance to receive a first modulated signal and using a first output impedance to output a first transformed signal during a transmitting mode of a first communication standard, and for using the first input impedance to receive a second modulated signal and using a second output impedance to output a second transformed signal during the transmitting mode of a second communication standard; a second transforming network arranged for using a second input impedance to receive the second transformed signal and using a third output impedance to output a first RF signal to a connecting port of the transceiver during the transmitting mode of the second communication standard; a power amplifier, arranged to generate a second RF signal; and a switching circuit for selectively coupling the second transformed signal to the second transforming network.Type: GrantFiled: December 31, 2013Date of Patent: August 4, 2015Assignee: MEDIATEK INC.Inventors: Chia-Hsin Wu, Hui-Hsien Liu, Chien-Cheng Lin, Albert Chia-Wen Jerng, George Chien
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Patent number: 9065542Abstract: A Radio Frequency (RF) front end system and method are disclosed. The RF front end system comprises an antenna, a matching network coupled to the antenna, a power amplifier (PA) coupled to the matching network via a port on a transmit path, a low noise amplifier (LNA) coupled to the matching network via the port on a receive path and at least one transmit/receive switch (T/R SW) coupled between the port and at least one of the PA and LNA.Type: GrantFiled: August 5, 2011Date of Patent: June 23, 2015Assignee: RALINK TECHNOLOGY CORPORATIONInventors: Yuen Hui Chee, Albert Chia-Wen Jerng
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Patent number: 9031517Abstract: The present invention discloses a transmit-receive (TR) front end. The TR front end includes a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing a voltage swing and a power transmission of the PA; and a TR switch, coupled between the transformer and the LNA. The LNA is single ended and there is no transformer between the LNA and the TR switch.Type: GrantFiled: September 28, 2011Date of Patent: May 12, 2015Assignee: MediatekInventors: Albert Chia-Wen Jerng, Wen-Kai Li, Chien-Cheng Lin
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Publication number: 20140308899Abstract: A multi-standards transceiver includes: a first synthesizer arranged to generate a first oscillating signal; a second synthesizer arranged to generate a second oscillating signal; a first transceiver; a second transceiver; and a multiplexer coupled to the first synthesizer and the second synthesizer; wherein when the multi-standards transceiver operates under a first frequency mode, the first transceiver is arranged to use the first oscillating signal to modulate a first analog signal and the multiplexer is arranged to output the second oscillating signal to the second transceiver so that the second transceiver uses the second oscillating signal to modulate a second analog signal.Type: ApplicationFiled: December 24, 2013Publication date: October 16, 2014Applicant: MEDIATEK INC.Inventors: Tsung-Ming Chen, Chia-Hsin Wu, Albert Chia-Wen Jerng, George Chien
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Publication number: 20140295774Abstract: A transceiver includes: a first transforming network arranged for using a first input impedance to receive a first modulated signal and using a first output impedance to output a first transformed signal during a transmitting mode of a first communication standard, and for using the first input impedance to receive a second modulated signal and using a second output impedance to output a second transformed signal during the transmitting mode of a second communication standard; a second transforming network arranged for using a second input impedance to receive the second transformed signal and using a third output impedance to output a first RF signal to a connecting port of the transceiver during the transmitting mode of the second communication standard; a power amplifier, arranged to generate a second RF signal; and a switching circuit for selectively coupling the second transformed signal to the second transforming network.Type: ApplicationFiled: December 31, 2013Publication date: October 2, 2014Applicant: MEDIATEK INC.Inventors: Chia-Hsin Wu, Hui-Hsien Liu, Chien-Cheng Lin, Albert Chia-Wen Jerng, George Chien
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Publication number: 20130078931Abstract: The present invention discloses a transmit-receive (TR) front end. The TR front end includes a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing a voltage swing and a power transmission of the PA; and a TR switch, coupled between the transformer and the LNA. The LNA is single ended and there is no transformer between the LNA and the TR switch.Type: ApplicationFiled: September 28, 2011Publication date: March 28, 2013Inventors: Albert Chia-Wen JERNG, Wen-Kai Li, Chien-Cheng Lin
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Publication number: 20130035048Abstract: A Radio Frequency (RF) front end system and method are disclosed. The RF front end system comprises an antenna, a matching network coupled to the antenna, a power amplifier (PA) coupled to the matching network via a port on a transmit path, a low noise amplifier (LNA) coupled to the matching network via the port on a receive path and at least one transmit/receive switch (T/R SW) coupled between the port and at least one of the PA and LNA.Type: ApplicationFiled: August 5, 2011Publication date: February 7, 2013Inventors: Yuen Hui Chee, Albert Chia-Wen Jerng
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Publication number: 20110143690Abstract: A radio transceiver is disclosed. The transceiver comprises an integrated circuit. The integrated circuit comprises a transmit path; a first switch coupled in series with the output of the transmit path; a receive path; and a second switch coupled as a shunt with the input of the receive path. The transceiver further comprises a plurality of external matching networks coupled to the transmit and receive paths of the integrated circuit to ensure minimal loading from one path to the other. The transceiver also comprises a shared balun for converting differential signals from the plurality of external matching networks to single ended signals; and an antenna to interface with the single ended signals. A method and system in accordance with an embodiment enables tying together the transmit path and the receive paths of a radio transceiver without the need for an external T/R switch.Type: ApplicationFiled: December 10, 2009Publication date: June 16, 2011Applicant: RALINK TECHNOLOGY (SINGAPORE) CORPORATIONInventors: Albert Chia-Wen JERNG, Jen-Wei KO, Weijun YAO, Eric Chiyuan LU