Patents by Inventor Can Duan

Can Duan 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: 11522043
    Abstract: A method of fabricating an integrated circuit (IC) includes forming a dielectric layer on a substrate having a plurality of the IC. A thin-film resistor (TFR) layer is deposited on the dielectric layer, and an underlayer (UL) including carbon is formed on the TFR layer. A hard mask layer including silicon is formed on the UL. Masked etching of the hard mask layer transfers a pattern of a photoresist layer onto the hard mask layer to form a hard mask layer pattern. Masked etching of the UL transfers the hard mask layer pattern onto the UL to form a UL pattern. Masked etching of the TFR layer transfers the UL pattern onto the TFR layer to form a TFR layer pattern including a matched pair of TFRs. The matched pair of TFRs are generally included in circuitry configured together for implementing at least one function.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: December 6, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Scott William Jessen, Tae Seung Kim, Steven Lee Prins, Can Duan, Abbas Ali, Erich Wesley Kinder
  • Patent number: 11259685
    Abstract: Methods and apparatuses for enlarging the optical scan angle of imaging probes are provided. The optical scan angle of endoscopic probes can be increased by employing the “Snell's Window” effect. An endoscopic probe can include an endoscope shell, a device for capturing electromagnetic radiation, and a liquid or gel provided between the device for capturing electromagnetic radiation and the endoscope shell. The endoscope probe can further include a first mirror placed such that electromagnetic radiation entering through the endoscope shell can bounce off the first mirror and enter the device for capturing electromagnetic radiation. The first mirror can be a microelectromechanical systems (MEMS) mirror.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: March 1, 2022
    Assignee: THE UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED
    Inventors: Huikai Xie, Sanjeev Jagannatha Koppal, Xiaoyang Zhang, Liang Zhou, Can Duan
  • Publication number: 20210134939
    Abstract: A method of fabricating an integrated circuit (IC) includes forming a dielectric layer on a substrate having a plurality of the IC. A thin-film resistor (TFR) layer is deposited on the dielectric layer, and an underlayer (UL) including carbon is formed on the TFR layer. A hard mask layer including silicon is formed on the UL. Masked etching of the hard mask layer transfers a pattern of a photoresist layer onto the hard mask layer to form a hard mask layer pattern. Masked etching of the UL transfers the hard mask layer pattern onto the UL to form a UL pattern. Masked etching of the TFR layer transfers the UL pattern onto the TFR layer to form a TFR layer pattern including a matched pair of TFRs. The matched pair of TFRs are generally included in circuitry configured together for implementing at least one function.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: Scott William Jessen, Tae Seung Kim, Steven Lee Prins, Can Duan, Abbas Ali, Erich Wesley Kinder
  • Publication number: 20190150715
    Abstract: Methods and apparatuses for enlarging the optical scan angle of imaging probes are provided. The optical scan angle of endoscopic probes can be increased by employing the “Snell's Window” effect. An endoscopic probe can include an endoscope shell, a means for capturing electromagnetic radiation, and a liquid or gel provided between the means for capturing electromagnetic radiation and the endoscope shell. The endoscope probe can further include a first mirror placed such that electromagnetic radiation entering through the endoscope shell can bounce off the first mirror and enter the means for capturing electromagnetic radiation. The first mirror can be a microelectromechanical systems (MEMS) mirror.
    Type: Application
    Filed: July 28, 2017
    Publication date: May 23, 2019
    Inventors: Huikai XIE, Sanjeev Jagannatha KOPPAL, Xiaoyang ZHANG, Liang ZHOU, Can DUAN
  • Patent number: 9716608
    Abstract: Disclosed is a multi-element code modulation mapping method and device, relating to communications and designed to improve communication reliability. The method includes that: multi-element domain coding is performed on a first sequence including K multi-element codes to obtain a second sequence including N multi-element codes; K1 and K2 are calculated according to a multi-element domain element number q and a modulation order M, wherein K1*log2 q=K2*log2 M, both K1 and K2 are integers not smaller than 2, and both q and M are power of 2; the second sequence is divided into z groups of multi-element codes with each group including K1 multi-element codes, wherein C=formula (I), and formula (II) represents rounding up; each group of multi-element codes is mapped to a constellation diagram to form K2 Mth-order modulation symbols; and z groups of Mth-order modulation symbols are sequentially cascaded to form a modulation symbol to be sent. The present disclosure further discloses a computer storage medium.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: July 25, 2017
    Assignee: ZTE Corporation
    Inventors: Can Duan, Jun Xu, Jin Xu, Guanghui Yu, Ningning Tong, Danfeng Zhao, Xiangchao Zhou
  • Publication number: 20170019289
    Abstract: Disclosed is a multi-element code modulation mapping method and device, relating to communications and designed to improve communication reliability. The method includes that: multi-element domain coding is performed on a first sequence including K multi-element codes to obtain a second sequence including N multi-element codes; K1 and K2 are calculated according to a multi-element domain element number q and a modulation order M, wherein K1*log2 q=K2*log2 M, both K1 and K2 are integers not smaller than 2, and both q and M are power of 2; the second sequence is divided into z groups of multi-element codes with each group including K1 multi-element codes, wherein C=formula (I), and formula (II) represents rounding up; each group of multi-element codes is mapped to a constellation diagram to form K2 Mth-order modulation symbols; and z groups of Mth-order modulation symbols are sequentially cascaded to form a modulation symbol to be sent. The present disclosure further discloses a computer storage medium.
    Type: Application
    Filed: July 30, 2014
    Publication date: January 19, 2017
    Inventors: Can Duan, Jun Xu, Jin Xu, Guanghui Yu, Ningning Tong, Danfeng Zhao, Xiangchao Zhou