Patents by Inventor Guansheng Li
Guansheng Li 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).
-
Patent number: 11935407Abstract: A dynamic loose vehicle formation method based on real-time online navigation map, which belongs to the field of vehicle formation technologies. The method includes a driver inputs travel information of a destination and waypoints in a GIS app; the GIS app uploads the travel information to a GIS server; the driver chooses to join a recommended formation or create a formation in the GIS app; when the driver chooses the formation and joins the formation, the formation information is displayed on the GIS app interface and sent to other vehicles within the formation for information interaction; when the driver chooses to leave the formation and leaves the formation, the formation is adjusted and the GIS server updates the formation information.Type: GrantFiled: August 9, 2023Date of Patent: March 19, 2024Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Shufeng Wang, Qingwei Liang, Li Li, Yuyan Wang, Huayue Zhang, Baokang Zhang, Sunquan Long, Guansheng Wu, Mengqi Luo, Xianbin Du, Junyou Zhang
-
Patent number: 11916561Abstract: An apparatus may include a first clock generator configured to receive an input clock signal, and generate two or more first-level clock signals of a track-and-hold circuit, a phase interpolator configured to generate an interpolated clock signals, wherein the interpolated clock signal is based on the two or more first-level clock signals, and a second clock generator configured to generate two or more second-level clock signals based on the interpolated clock signal, wherein the phase of the two or more second-level clock signals relative to the phase of a respective first-level clock signal is determined, at least in part, by the phase of the interpolated clock signal.Type: GrantFiled: January 24, 2022Date of Patent: February 27, 2024Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Boyu Hu, Chang Liu, Guansheng Li, Haitao Wang, Delong Cui, Jun Cao
-
Publication number: 20230353173Abstract: Novel tools and techniques are provided for implementing a novel integrated programmable gain amplifier (“PGA”) and protection circuit. In various embodiments, a circuit is provided that comprises: a PGA, an analog-to-digital converter (“ADC”), and a protection circuit all disposed on the same semiconductor chip. The PGA is configured to receive as input a wireless signal received from an antenna and to output, at its output, an amplified wireless signal based on the wireless signal being amplified by a programmable gain amount. The protection circuit is configured to, in response to detecting a spike in gain at the output of the PGA that exceeds a threshold amplitude, control a decrease in the programmable gain amount to cause a resultant signal at the output of the PGA to be below the threshold amplitude. A normally-open switch may also be added at differential outputs of the PGA to further clamp PGA output.Type: ApplicationFiled: April 29, 2022Publication date: November 2, 2023Inventors: Xiaochen Yang, Hamid Hatamkhani, Guansheng Li, Yong Liu, Delong Cui, Jun Cao
-
Publication number: 20230327663Abstract: A system including a source follower circuit is disclosed. The source follower circuit configured as a voltage buffer that includes a first common-drain transistor that passes an input signal at the gate to an output loading capacitor at the source, and a second common-drain transistor that is used as a bias current source. The source follower circuit includes a first resistor at the drain of the first transistor generating a first voltage that is fed back through a first path through the gate of the second transistor so as to produce additional current to help the output signal catch up with the input voltage. The source follower circuit further includes an inductive element and bias circuit, which along with the first resistor, increases bandwidth and reduced settling time.Type: ApplicationFiled: April 11, 2022Publication date: October 12, 2023Inventors: Guansheng Li, Delong Cui, Jun Cao
-
Publication number: 20230327623Abstract: Systems and methods are related to a distributed amplification. An amplification device can include cells including a first cell and a second cell and transmission lines including a first line and a second line. The first cell is coupled to the first line, and the second cell is coupled to the second line. The first line is configured to provide a first delay related to a delay between the first cell and the second cell. The device also includes a summer including a first input coupled to the first line and second input coupled to the second line. The summer is configured to provide an output signal.Type: ApplicationFiled: April 8, 2022Publication date: October 12, 2023Inventors: Guansheng Li, Heng Zhang, Delong Cui, Jun Cao
-
Patent number: 10637440Abstract: A non-linear impedance terminates a transmission line. The non-linear impedance may be implemented with a back-to-back connected inverter pair. The pair acts as a non-linear resistor. A process, voltage, temperature (PVT) tracking circuit may also be provided to improve PVT tracking, with resistance of transistors locked to a calibrated resistor. The replica circuit does not appear in the signal path, and does not add capacitive load.Type: GrantFiled: June 11, 2018Date of Patent: April 28, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Guansheng Li, Jun Cao
-
Publication number: 20190189734Abstract: Systems and methods disclosed herein provide a coupled T-coil circuit for differential mode bandwidth extension and common mode rejection. The coupled T-coil circuit includes a first layer including at least a first portion of a first T-coil circuit and a first portion of a second T-coil circuit, and a second layer disposed on top of the first layer and interconnected to the first layer, the second layer including at least a second portion of the first T-coil circuit and a second portion of the second T-coil circuit. The first T-coil circuit includes one or more first coils with a first wind direction. The second T-coil circuit comprises one or more second coils with a second wind direction. The first wind direction can be opposite the second wind direction.Type: ApplicationFiled: December 20, 2017Publication date: June 20, 2019Inventors: Guansheng Li, Ullas Singh, Delong Cui, Jun Cao, Afshin Momtaz
-
Publication number: 20180294798Abstract: A non-linear impedance terminates a transmission line. The non-linear impedance may be implemented with a back-to-back connected inverter pair. The pair acts as a non-linear resistor. A process, voltage, temperature (PVT) tracking circuit may also be provided to improve PVT tracking, with resistance of transistors locked to a calibrated resistor. The replica circuit does not appear in the signal path, and does not add capacitive load.Type: ApplicationFiled: June 11, 2018Publication date: October 11, 2018Applicant: Avago Technologies General IP (Singapore) Pte. Ltd .Inventors: Guansheng Li, Jun Cao
-
Patent number: 10033351Abstract: A non-linear impedance terminates a transmission line. The non-linear impedance may be implemented with a back-to-back connected inverter pair. The pair acts as a non-linear resistor. A process, voltage, temperature (PVT) tracking circuit may also be provided to improve PVT tracking, with resistance of transistors locked to a calibrated resistor. The replica circuit does not appear in the signal path, and does not add capacitive load.Type: GrantFiled: March 4, 2015Date of Patent: July 24, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Guansheng Li, Jun Cao
-
Publication number: 20160164156Abstract: A non-linear impedance terminates a transmission line. The non-linear impedance may be implemented with a back-to-back connected inverter pair. The pair acts as a non-linear resistor. A process, voltage, temperature (PVT) tracking circuit may also be provided to improve PVT tracking, with resistance of transistors locked to a calibrated resistor. The replica circuit does not appear in the signal path, and does not add capacitive load.Type: ApplicationFiled: March 4, 2015Publication date: June 9, 2016Inventors: Guansheng Li, Jun Cao
-
Publication number: 20130296217Abstract: The present invention is directed to a distributed dual-band oscillator suitable for low-phase-noise applications. The invention is configured to switch between the odd and even resonant modes of a fourth-order resonator. The switches used for mode selection do not conduct current and therefore do not affect the quality factor (Q) of the resonator. The benefit of this feature is relatively low phase noise.Type: ApplicationFiled: October 21, 2011Publication date: November 7, 2013Applicant: CORNELL UNIVERSITYInventors: Ehsan Afshari, Guansheng Li
-
Patent number: 8294528Abstract: A VCO includes a transformer-based resonator that has a first LC tank and a second LC tank. The resonator has an even resonant mode and an odd resonant mode. The VCO further includes an active transconductance network that is coupled to a two-terminal port of the first tank and is also coupled to a two-terminal port of the second tank. A first terminal of the port of the first tank is capacitively coupled to a first terminal of the port of the second tank. A second terminal of the port of the first tank is capacitively coupled to a second terminal of the port of the second tank. The active transconductance network causes the resonator to resonate in a selectable one of the even and odd resonant modes depending on a digital control signal. The VCO is fine tuned by changing the capacitances of capacitors of the tanks.Type: GrantFiled: December 28, 2010Date of Patent: October 23, 2012Assignee: Qualcomm IncorporatedInventors: Guansheng Li, Li Liu, Yiwu Tang
-
Publication number: 20120161890Abstract: A VCO includes a transformer-based resonator that has a first LC tank and a second LC tank. The resonator has an even resonant mode and an odd resonant mode. The VCO further includes an active transconductance network that is coupled to a two-terminal port of the first tank and is also coupled to a two-terminal port of the second tank. A first terminal of the port of the first tank is capacitively coupled to a first terminal of the port of the second tank. A second terminal of the port of the first tank is capacitively coupled to a second terminal of the port of the second tank. The active transconductance network causes the resonator to resonate in a selectable one of the even and odd resonant modes depending on a digital control signal. The VCO is fine tuned by changing the capacitances of capacitors of the tanks.Type: ApplicationFiled: December 28, 2010Publication date: June 28, 2012Applicant: QUALCOMM INCORPORATEDInventors: Guansheng Li, Li Liu, Yiwu Tang