Patents by Inventor Robert W. Liang
Robert W. Liang 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: 11329693Abstract: An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver and capable of implementing a convergence layer, wherein the control logic is configured to receive, from the first transceiver, a first signal; and cause, in response to the first signal, data received and transmitted by the first transceiver on the first communication medium as part of a communication session to be received and transmitted instead by the second transceiver on the second communication medium.Type: GrantFiled: March 19, 2020Date of Patent: May 10, 2022Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Yanjun Sun, Gang Xu, Soon-Hyeok Choi, Bhadra Sandeep, Xiaolin Lu, Ariton E. Xhafa, Minghua Fu, Robert W. Liang, Susan Yim
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Patent number: 10833890Abstract: Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received.Type: GrantFiled: October 8, 2018Date of Patent: November 10, 2020Assignee: Texas Instruments IncorporatedInventors: Shu Du, Robert W. Liang, Xiaolin Lu
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Publication number: 20200220574Abstract: An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver and capable of implementing a convergence layer, wherein the control logic is configured to receive, from the first transceiver, a first signal; and cause, in response to the first signal, data received and transmitted by the first transceiver on the first communication medium as part of a communication session to be received and transmitted instead by the second transceiver on the second communication medium.Type: ApplicationFiled: March 19, 2020Publication date: July 9, 2020Inventors: Yanjun Sun, Gang Xu, Soon-Hyeok Choi, Bhadra Sandeep, Xiaolin Lu, Ariton E. Xhafa, Minghua Fu, Robert W. Liang, Susan Yim
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Patent number: 10644750Abstract: A method for implementing a convergence layer. Data is received on a first communication medium by a first transceiver. Data is transmitted on the first communication medium by the first transceiver. A signal is received. Causing, through the convergence layer, by a control logic in response to the signal, the data received and transmitted on the first communication medium as part of a communication session to be received and transmitted instead by a second transceiver on a second communication medium, wherein the convergence layer is configured to conceal from a routing layer at least one of: information related to the first signal, and information related to the data being received and transmitted on the second communication medium.Type: GrantFiled: October 8, 2015Date of Patent: May 5, 2020Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Yanjun Sun, Gang Xu, Soon-Hyeok Choi, Bhadra Sandeep, Xiaolin Lu, Ariton E. Xhafa, Minghua Fu, Robert W. Liang, Susan Yim
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Publication number: 20190044751Abstract: Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received.Type: ApplicationFiled: October 8, 2018Publication date: February 7, 2019Inventors: Shu Du, Robert W. Liang, Xiaolin Lu
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Patent number: 10097371Abstract: Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received.Type: GrantFiled: June 19, 2015Date of Patent: October 9, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Shu Du, Robert W. Liang, Xiaolin Lu
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Publication number: 20160028438Abstract: A method for implementing a convergence layer. Data is received on a first communication medium by a first transceiver. Data is transmitted on the first communication medium by the first transceiver. A signal is received. Causing, through the convergence layer, by a control logic in response to the signal, the data received and transmitted on the first communication medium as part of a communication session to be received and transmitted instead by a second transceiver on a second communication medium, wherein the convergence layer is configured to conceal from a routing layer at least one of: information related to the first signal, and information related to the data being received and transmitted on the second communication medium.Type: ApplicationFiled: October 8, 2015Publication date: January 28, 2016Inventors: Yanjun Sun, Gang Xu, Soon-Hyeok Choi, Bhadra Sandeep, Xiaolin Lu, Ariton E. Xhafa, Minghua Fu, Robert W. Liang, Susan Yim
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Patent number: 9184779Abstract: An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver and capable of implementing a convergence layer, wherein the control logic is configured to receive, from the first transceiver, a first signal; and cause, in response to the first signal, data received and transmitted by the first transceiver on the first communication medium as part of a communication session to be received and transmitted instead by the second transceiver on the second communication medium.Type: GrantFiled: July 19, 2012Date of Patent: November 10, 2015Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Yanjun Sun, Gang Xu, Soon-Hyeok Choi, Bhadra Sandeep, Xiaolin Lu, Ariton E. Xhafa, Minghua Fu, Robert W. Liang, Susan Yim
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Publication number: 20150288534Abstract: Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received.Type: ApplicationFiled: June 19, 2015Publication date: October 8, 2015Inventors: Shu Du, Robert W. Liang, Xiaolin Lu
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Patent number: 9094234Abstract: Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received.Type: GrantFiled: April 29, 2014Date of Patent: July 28, 2015Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Shu Du, Robert W. Liang, Xiaolin Lu
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Publication number: 20140233586Abstract: Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received.Type: ApplicationFiled: April 29, 2014Publication date: August 21, 2014Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Shu Du, Robert W. Liang, Xiaolin Lu
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Publication number: 20130188673Abstract: An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver and capable of implementing a convergence layer, wherein the control logic is configured to receive, from the first transceiver, a first signal; and cause, in response to the first signal, data received and transmitted by the first transceiver on the first communication medium as part of a communication session to be received and transmitted instead by the second transceiver on the second communication medium.Type: ApplicationFiled: July 19, 2012Publication date: July 25, 2013Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Yanjun SUN, Gang Xu, Soon-Hyeok Choi, Bhadra Sandeep, Xiaolin Lu, Ariton E. Xhafa, Minghua Fu, Robert W. Liang, Susan Yim