Patents by Inventor Hung Yu Yang

Hung Yu Yang 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: 7209727
    Abstract: An integrated RF front-end architecture is disclosed. Such an integrated RF front-end architecture includes a multi-tap balun, a low noise amplifier and a power amplifier core. The multi-tap balun includes a single-ended primary winding and a symmetrical multi-tap secondary winding, wherein the single-ended primary winding is operably coupled to an antenna. The low noise amplifier is coupled to a first set of taps of the symmetrical multi-tap secondary winding. The power amplifier core is coupled to a second set of taps of the symmetrical multi-tap secondary winding and can be a two stage amplifier having a driver stage and an output stage. The multi-tap balun, low noise amplifier and power amplifier core can be on-chip components or can be fabricated to be discrete components on a printed circuit board.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: April 24, 2007
    Assignee: Broadcom Corporation
    Inventors: Jesus A. Castaneda, Iqbal S. Bhatti, Razieh Roufoogaran, Hung Yu Yang
  • Patent number: 7088214
    Abstract: An on-chip multiple tap transformer balun includes a 1st winding and a 2nd winding having two portions. The 1st winding is on a 1st layer of an integrated circuit and is operably coupled for a single ended signal. The 1st and 2nd portions of the 2nd winding are on a 2nd layer of the integrated circuit. The 1st portion of the 2nd winding includes a 1st node, a 2nd node, and a tap. The 1st node is operably coupled to receive a 1st leg of a 1st differential signal and the 2nd node is coupled to a reference potential. The tap of the 1st portion is operably coupled for a 1st leg of a 2nd differential signal. The 2nd portion of the 2nd winding includes a 1st node, 2nd node, and tap. The 1st node is operably coupled to receive a 2nd leg of the 1st differential signal and the 2nd node is operably coupled to the reference potential. The tap of the 2nd portion is coupled for a 2nd leg of the 2nd differential signal.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: August 8, 2006
    Assignee: Broadcom Corporation
    Inventors: Jesus A. Castaneda, Razieh Rogougaran, Iqbal S. Bhatti, Hung Yu Yang
  • Patent number: 7039381
    Abstract: An on-chip differential inductor includes a 1st interwound winding having a substantially octagonal shape, or rectangular octagonal shape, and a 2nd interwound winding having a substantially octagonal shape, or rectangular octagonal shape, that is interwound with the 1st interwound winding. Both the 1st and 2nd interwound windings are on the same layer of the integrated circuit. Each interwound winding includes two nodes; one of node of each winding is commonly coupled to a reference potential. The other node of each winding is operably coupled to receive a respective leg of a differential signal.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: May 2, 2006
    Assignee: Broadcom Corporation
    Inventors: Hung Yu Yang, Jesus A. Castaneda, Lijun Zhang
  • Patent number: 6882263
    Abstract: A transformer balun is obtained that is symmetrical in structure, provides high current, or high voltage, amplification and has high coupling coefficients while maintaining minimal overall size. The balun structure includes primary and secondary metal windings at separate layer interfaces. The primary and secondary metal windings are symmetrical and can have any number of turns, which is only limited by integrated circuit area and capacitance. Accordingly, the, primary and secondary windings may be on as many layers as needed. Further, the primary and/or secondary may include a center tap ground, which enables the winding to be used as a differential port.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: April 19, 2005
    Assignee: Broadcom, Corp.
    Inventors: Hung Yu Yang, Jesse A Castaneda, Reza Rofougaran
  • Publication number: 20040253939
    Abstract: An integrated RF front-end architecture is disclosed. Such an integrated RF front-end architecture includes a multi-tap balun, a low noise amplifier and a power amplifier core. The multi-tap balun includes a single-ended primary winding and a symmetrical multi-tap secondary winding, wherein the single-ended primary winding is operably coupled to an antenna. The low noise amplifier is coupled to a first set of taps of the symmetrical multi-tap secondary winding. The power amplifier core is coupled to a second set of taps of the symmetrical multi-tap secondary winding and can be a two stage amplifier having a driver stage and an output stage. The multi-tap balun, low noise amplifier and power amplifier core can be on-chip components or can be fabricated to be discrete components on a printed circuit board.
    Type: Application
    Filed: June 12, 2003
    Publication date: December 16, 2004
    Inventors: Jesus A. Castaneda, Iqbal S. Bhatti, Razieh Roufoogaran, Hung Yu Yang
  • Publication number: 20040207504
    Abstract: A transformer balun is obtained that is symmetrical in structure, provides high current, or high voltage, amplification and has high coupling coefficients while maintaining minimal overall size. The balun structure includes primary and secondary metal windings at separate layer interfaces. The primary and secondary metal windings are symmetrical and can have any number of turns, which is only limited by integrated circuit area and capacitance. Accordingly, the, primary and secondary windings may be on as many layers as needed. Further, the primary and/or secondary may include a center tap ground, which enables the winding to be used as a differential port.
    Type: Application
    Filed: May 13, 2004
    Publication date: October 21, 2004
    Inventors: Hung Yu Yang, Jesse A. Castaneda, Reza Rofougaran
  • Patent number: 6801114
    Abstract: A transformer balun is obtained that is symmetrical in structure, provides high current, or high voltage, amplification and has high coupling coefficients while maintaining minimal overall size. The balun structure includes primary and secondary metal windings at separate layer interfaces. The primary and secondary metal windings are symmetrical and can have any number of turns, which is only limited by integrated circuit area and capacitance. Accordingly, the primary and secondary windings may be on as many layers as needed. Further, the primary and/or secondary may include a center tap ground, which enables the winding to be used as a differential port.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: October 5, 2004
    Assignee: Broadcom Corp.
    Inventors: Hung Yu Yang, Jesse A Castaneda, Reza Rofougaran
  • Publication number: 20040111881
    Abstract: A transformer balun is obtained that is symmetrical in structure, provides high current, or high voltage, amplification and has high coupling coefficients while maintaining minimal overall size. The balun structure includes primary and secondary metal windings at separate layer interfaces. The primary and secondary metal windings are symmetrical and can have any number of turns, which is only limited by integrated circuit area and capacitance. Accordingly, the primary and secondary windings may be on as many layers as needed. Further, the primary and/or secondary may include a center tap ground, which enables the winding to be used as a differential port.
    Type: Application
    Filed: December 4, 2003
    Publication date: June 17, 2004
    Inventors: Hung Yu Yang, Jesse A. Castaneda, Reza Rofougaran
  • Publication number: 20040108927
    Abstract: An on-chip multiple tap transformer balun includes a 1st winding and a 2nd winding having two portions. The 1st winding is on a 1st layer of an integrated circuit and is operably coupled for a single ended signal. The 1st and 2nd portions of the 2nd winding are on a 2nd layer of the integrated circuit. The 1st portion of the 2nd winding includes a 1st node, a 2nd node, and a tap. The 1st node is operably coupled to receive a 1st leg of a 1st differential signal and the 2nd node is coupled to a reference potential. The tap of the 1st portion is operably coupled for a 1st leg of a 2nd differential signal. The 2nd portion of the 2nd winding includes a 1st node, 2nd node, and tap. The 1st node is operably coupled to receive a 2nd leg of the 1st differential signal and the 2nd node is operably coupled to the reference potential. The tap of the 2nd portion is coupled for a 2nd leg of the 2nd differential signal.
    Type: Application
    Filed: December 4, 2003
    Publication date: June 10, 2004
    Inventors: Jesus A. Castaneda, Razieh Rofougaran, Iqbal S. Bhatti, Hung Yu Yang
  • Patent number: 6707367
    Abstract: An on-chip multiple tap transformed balun includes a 1st winding and a 2nd winding having two portions. The 1st winding is on a 1st layer of an integrated circuit and is operably coupled for a single ended signal. The 1st and 2nd portions of the 2nd winding are on a 2nd layer of the integrated circuit. The 1st portion of the 2nd winding includes a 1st node, a 2nd node, and a tap. The 1st node is operably coupled to receive a 1st leg of a 1st differential signal and the 2nd node is coupled to a reference potential. The tap of the 1st portion is operably coupled for a 1st leg of a 2nd differential signal. The 2nd portion of the 2nd winding includes a 1st node, 2nd node, and tap. The 1st node is operably coupled to receive a 2nd leg of the 1st differential signal and the 2nd node is operably coupled to the reference potential. The tap of the 2nd portion is coupled for a 2nd leg of the 2nd differential signal.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: March 16, 2004
    Assignee: Broadcom, Corp.
    Inventors: Jesus A. Castaneda, Razieh Rogougaran, Iqbal S. Bhatti, Hung Yu Yang
  • Publication number: 20040018823
    Abstract: An on-chip differential inductor includes a 1st interwound winding having a substantially octagonal shape, or rectangular octagonal shape, and a 2nd interwound winding having a substantially octagonal shape, or rectangular octagonal shape, that is interwound with the 1st interwound winding. Both the 1st and 2nd interwound windings are on the same layer of the integrated circuit. Each interwound winding includes two nodes; one of node of each winding is commonly coupled to a reference potential. The other node of each winding is operably coupled to receive a respective leg of a differential signal.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Hung Yu Yang, Jesus A. Castaneda, Lijun Zhang
  • Publication number: 20040017278
    Abstract: An on-chip multiple tap transformer balun includes a 1st winding and a 2nd winding having two portions. The 1st winding is on a 1st layer of an integrated circuit and is operably coupled for a single ended signal. The 1st and 2nd portions of the 2nd winding are on a 2nd layer of the integrated circuit. The 1st portion of the 2nd winding includes a 1st node, a 2nd node, and a tap. The 1st node is operably coupled to receive a 1st leg of a 1st differential signal and the 2nd node is coupled to a reference potential. The tap of the 1st portion is operably coupled for a 1st leg of a 2nd differential signal. The 2nd portion of the 2nd winding includes a 1st node, 2nd node, and tap. The 1st node is operably coupled to receive a 2nd leg of the 1st differential signal and the 2nd node is operably coupled to the reference potential. The tap of the 2nd portion is coupled for a 2nd leg of the 2nd differential signal.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Jesus A. Castaneda, Rozieh Rofougaran, Iqbal S. Bhatti, Hung Yu Yang
  • Patent number: 6356208
    Abstract: A structure for an infrared ray communication device placed over a lane which encloses a wireless infrared communication device and includes an upper cover for an attachment lens, an attachment lens, a rain shield, a light guiding device, a fixed support for an emitting module, a fixed support for a receiving module, a circuit board socket, a trough for a transformer, fixed hooks, and a rain shield. The device is placed over a path of a passing vehicle, and used to receive infrared rays and to proceed with data transmission.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: March 12, 2002
    Assignee: ChunghwaTelecom Co., Ltd.
    Inventors: Bor-Shenn Jeng, Chun-Yo Hsu, Hong-Kai Yen, Po-Wen Lu, Hung-Yu Yang, Chun-Jen Chou, Yn-Tarng Jong, Sung-Chu Lai