Patents by Inventor Xing Wang

Xing Wang 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).

  • Publication number: 20030234687
    Abstract: A novel linearization apparatus for reducing power amplifier distortion does not require delay lines. The apparatus includes a power amplifier and an error generator. The signals provided by the error generator (error signal) and the power amplifier are combined to subtract out the distortion introduced by the power amplifier. The error generator includes two auxiliary amplifiers, wherein one of the auxiliary amplifiers is operated in it saturated region and the other is operated in its non-saturated region. The power amplifier and the two auxiliary amplifiers have the same distortion characteristics and receive the same input signal. The auxiliary amplifier operating in its saturated region introduces distortion and the auxiliary amplifier operating in its non-saturated region does not introduce distortion. The two signals provided by the auxiliary amplifiers are combined to produce an error signal having a distortion component that is an approximate replica of the power amplifier distortion.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 25, 2003
    Inventors: Guang Fei Zhang, Xing Wang, Fabio Concilio, Tjo San Jao
  • Patent number: 6666921
    Abstract: The present invention provides a chemical vapor deposition apparatus for a semiconductor film, containing a horizontal tubular reactor, a susceptor, a heater, a feed gas introduction portion and a reaction gas exhaust portion, where part of the tubular reactor walls inclines downward from the upstream side of the feed gas passageway towards the downstream side thereof. The present invention also provides a chemical vapor deposition method using the apparatus.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: December 23, 2003
    Assignees: Japan Pionics Co., Ltd., NPS Co., Ltd.
    Inventors: Shiro Sakai, Yukichi Takamatsu, Yuji Mori, Hong Xing Wang, Yoshiyasu Ishihama, Yutaka Amijima
  • Patent number: 6653527
    Abstract: This invention relates to seedlings which demonstrate improved phenotypic characteristics when grown at low light levels. More specifically, the present invention relates to producing plants which contain a nucleic acid sequence coding for the N282 protein as well as the wildtype COP1 gene.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: November 25, 2003
    Assignee: Yale University
    Inventors: Xing Wang Deng, Timothy McNellis, Keiko Torii
  • Publication number: 20030163841
    Abstract: This invention relates to seedlings which demonstrate better emergence characteristics when grown in darkness and improved seedling growth when grown under low-light levels. More specifically, the present invention relates to producing plant cells and whole plants which contain a nucleic acid sequence coding for the Coil domain as well as the sequence coding for the wildtype COP1 gene. The plants of this invention display unopened, compact leaves during seedling emergence in the darkness and reduced etiolation of seedings grown in low-levels after emergence. The invention further relates to plant breeding methods which enable the transfer of these desirable traits to wildtype plants.
    Type: Application
    Filed: March 13, 2003
    Publication date: August 28, 2003
    Applicant: Yale University
    Inventors: Xing Wang Deng, Timothy McNellis, Keiko Torii
  • Patent number: 6592674
    Abstract: There are disclosed an apparatus and a method for chemical vapor deposition for a semiconductor film and the like, wherein a feed gas is supplied in a horizontal tubular reactor in the direction parallel to a substrate; a forcing gas is supplied therein in the direction perpendicular to the substrate; and the flow rate per unit area of the forcing gas which is supplied from a forcing gas introduction portion into the reactor is made lower in the central portion of the forcing gas introduction portion than in the peripheral portion thereof, or lower in the middle of a feed gas passageway than at both the end portions of the passageway.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: July 15, 2003
    Assignees: Japan Pionics Co., Ltd., Tokushima Sanso Co., Ltd.
    Inventors: Shiro Sakai, Yukichi Takamatsu, Yuji Mori, Hiroyuki Naoi, Hong Xing Wang, Yoshiyasu Ishihama, Yutaka Amijima
  • Patent number: 6579716
    Abstract: This invention relates to seedlings which demonstrate better emergence characteristics when grown in darkness and improved seedling growth when grown under low-light levels. More specifically, the present invention relates to producing plant cells and whole plants which contain a nucleic acid sequence coding for the Coil domain as well as the sequence coding for the wildtype COP1 gene. The plants of this invention display unopened, compact leaves during seedling emergence in the darkness and reduced etiolation of seedlings grown in low-levels after emergence. The invention further relates to plant breeding methods which enable the transfer of these desirable traits to wildtype plants.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 17, 2003
    Assignee: Yale University
    Inventors: Xing Wang Deng, Timothy McNellis, Keiko Torii
  • Publication number: 20030015137
    Abstract: There is disclosed a chemical vapor deposition apparatus of semi-conductor film comprising a horizontal type reaction tube equipped with a susceptor to carry a substrate, a heater to heat the substrate, an ingredient gas introduction zone arranged in a way that feeding direction to the reaction tube of the ingredient gas becomes substantially parallel to the substrate, and a reaction gas exhaust division, and further having a pressurized gas introduction zone on the wall of the reaction tube facing the substrate, wherein the structure of at least one part of the pressurized gas introduction zone at an upstream side of an ingredient gas passageway is such that the pressurized gas supplied from said part of the pressurized gas introduction zone is fed in an oblique down or a horizontal direction oriented to a downstream side of the ingredient gas passageway. Also, disclosed herein a chemical vapor deposition method using the apparatus.
    Type: Application
    Filed: June 14, 2002
    Publication date: January 23, 2003
    Applicant: Japan Pionics Co., Ltd.
    Inventors: Shiro Sakai, Yukichi Takamatsu, Yuji Mori, Hong Xing Wang, Yoshinao Komiya, Reiji Kureha, Yoshiyasu Ishihama, Yutaka Amijima
  • Publication number: 20020160112
    Abstract: There is disclosed a chemical vapor deposition apparatus for a semiconductor film, which comprises a horizontal tubular reactor, a susceptor, a heater, a feed gas introduction portion and a reaction gas exhaust portion, wherein the constitution of the apparatus is such that part of the tubular reactor walls inclines downward from the upstream side of the feed gas passageway towards the downstream side thereof so as to change the direction of the gas stream to an oblique downward direction or is such that the spacing between the susceptor and the tubular reactor wall in opposition thereto is made smaller than the vertical spacing in the tubular reactor wall from a gas feed port in the feed gas introduction portion to the upstream side end of the feed gas passageway for the susceptor. Also disclosed herein a chemical vapor deposition method using the apparatus.
    Type: Application
    Filed: February 22, 2002
    Publication date: October 31, 2002
    Applicant: Japan Pionics Co., Ltd
    Inventors: Shiro Sakai, Yukichi Takamatsu, Yuji Mori, Hong Xing Wang, Yoshiyasu Ishihama, Yutaka Amijima
  • Publication number: 20020042191
    Abstract: There are disclosed an apparatus and a method for chemical vapor deposition for a semiconductor film and the like, wherein a feed gas is supplied in a horizontal tubular reactor in the direction parallel to a substrate; a forcing gas is supplied therein in the direction perpendicular to the substrate; and the flow rate per unit area of the forcing gas which is supplied from a forcing gas introduction portion into the reactor is made lower in the central portion of the forcing gas introduction portion than in the peripheral portion thereof, or lower in the middle of a feed gas passageway than at both the end portions of the passageway.
    Type: Application
    Filed: September 26, 2001
    Publication date: April 11, 2002
    Applicant: Japan Pionics Co., Ltd.
    Inventors: Shiro Sakai, Yukichi Takamatsu, Yuji Mori, Hiroyuki Naoi, Hong Xing Wang, Yoshiyasu Ishihama, Yutaka Amijima