Patents by Inventor Hingloi Alfred Hung

Hingloi Alfred Hung 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: 10079420
    Abstract: A power combiner and divider device includes a first port electrically connected to a first impedance line and a second impedance line; a second port electrically connected to the first impedance line and a coupled line; a third port electrically connected to the second impedance line and the coupled line; a third impedance line electrically connected to the coupled line; and a fourth impedance line electrically connected to each of the third impedance line and the coupled line.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: September 18, 2018
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ali M. Darwish, Hingloi Alfred Hung
  • Patent number: 10069669
    Abstract: A radio transmitter having a RF signal source. A splitter receives an input signal from the signal source and divides that input signal into two output signals. Alternatively, two signal generators provide the two output signals. These output signals are fed into two phase shifters. A phase control signal is applied to each phase shifter so that the vector sum of the output signals represents the desired amplitude and phase of the desired transmitted signal. The outputs of both phase shifters are both frequency multiplied and amplified before recombining to form the transmitter output signal. Moreover, the outputs can be transmitted separately and combined at the receiver. Alternatively, in the case of two signal sources, the signal paths may be at different transmitter locations.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: September 4, 2018
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ali M Darwish, Hingloi Alfred Hung
  • Publication number: 20170346151
    Abstract: A power combiner and divider device includes a first port electrically connected to a first impedance line and a second impedance line; a second port electrically connected to the first impedance line and a coupled line; a third port electrically connected to the second impedance line and the coupled line; a third impedance line electrically connected to the coupled line; and a fourth impedance line electrically connected to each of the third impedance line and the coupled line.
    Type: Application
    Filed: February 9, 2017
    Publication date: November 30, 2017
    Inventors: Ali M. Darwish, Hingloi Alfred Hung
  • Publication number: 20170171012
    Abstract: A radio transmitter having a RF signal source. A splitter receives an input signal from the signal source and divides that input signal into two output signals. Alternatively, two signal generators provide the two output signals. These output signals are fed into two phase shifters. A phase control signal is applied to each phase shifter so that the vector sum of the output signals represents the desired amplitude and phase of the desired transmitted signal. The outputs of both phase shifters are both frequency multiplied and amplified before recombining to form the transmitter output signal. Moreover, the outputs can be transmitted separately and combined at the receiver. Alternatively, in the case of two signal sources, the signal paths may be at different transmitter locations.
    Type: Application
    Filed: February 1, 2017
    Publication date: June 15, 2017
    Inventors: Ali M. Darwish, Hingloi Alfred Hung
  • Patent number: 9584169
    Abstract: A radio transmitter having a RF signal source. A splitter receives an input signal from the signal source and divides that input signal into two output signals. These output signals are fed into two phase shifters. A phase control signal is applied to each phase shifter so that the vector sum of the output signals represents the desired amplitude and phase of the desired transmitted signal. The outputs of both phase shifters are both frequency multiplied and amplified before recombining to form the transmitter output signal.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: February 28, 2017
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joe Qiu, Ali Darwish, Hingloi Alfred Hung
  • Patent number: 9362602
    Abstract: Power-dividing and/or power-combining circuits have inputs, outputs, and at least three electrical pathways, with substantially equal input and output reflection coefficients. An electronic device may be provided in each of the pathways. Additionally, isolation circuits or devices can be inserted between signal lines to provide isolation between inputs, in the case of combining, or outputs, in the case of dividing. In one embodiment, multiple phase shift components are electrically connected to electronic devices in the electrical pathways. These phase shift components are selected so that a vector sum of the reflected signals from the inputs in combining and/or to the outputs in dividing is substantially minimized.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: June 7, 2016
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ali M. Darwish, Hingloi Alfred Hung
  • Patent number: 9000865
    Abstract: Power-dividing and/or power-combining circuits have inputs, outputs, at least three electrical pathways, and at least three electronic devices, such as amplifiers, with substantially equal input and output reflection At least one of the electronic devices is in each of the electrical pathways. In one embodiment, multiple phase shift components, such as delay lines, are electrically connected to the electronic devices in each of the electrical pathways. These phase shift components are selected so that a vector sum of the reflected signals from the electronic devices to the inputs and/or the outputs is substantially minimized. In another embodiment, a serial bus extends from the inputs/outputs and at least three pathways in the circuit.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: April 7, 2015
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ali M. Darwish, Hingloi Alfred Hung
  • Publication number: 20150002243
    Abstract: Power-dividing and/or power-combining circuits have inputs, outputs, and at least three electrical pathways, with substantially equal input and output reflection coefficients. An electronic device may be provided in each of the pathways. Additionally, isolation circuits or devices can be inserted between signal lines to provide isolation between inputs, in the case of combining, or outputs, in the case of dividing. In one embodiment, multiple phase shift components are electrically connected to electronic devices in the electrical pathways. These phase shift components are selected so that a vector sum of the reflected signals from the inputs in combining and/or to the outputs in dividing is substantially minimized.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventors: Ali M. Darwish, Hingloi Alfred Hung
  • Publication number: 20140368297
    Abstract: Power-dividing and/or power-combining circuits have inputs, outputs, at least three electrical pathways, and at least three electronic devices, such as amplifiers, with substantially equal input and output reflection At least one of the electronic devices is in each of the electrical pathways. In one embodiment, multiple phase shift components, such as delay lines, are electrically connected to the electronic devices in each of the electrical pathways. These phase shift components are selected so that a vector sum of the reflected signals from the electronic devices to the inputs and/or the outputs is substantially minimized. In another embodiment, a serial bus extends from the inputs/outputs and at least three pathways in the circuit.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 18, 2014
    Inventors: Ali M. Darwish, Hingloi Alfred Hung
  • Patent number: 8912577
    Abstract: According to various embodiments, a distributed heating transistor includes: a plurality of active regions where transistor action occurs including a heat source; and at least one inactive region where transistor action does not occur and no heat source is present, wherein adjacent active regions are separated by the at least one inactive region. The distributed heating transistor may be configured as field effect transistors (FETs), and bipolar junction transistors (BJTs). Methods for forming the distributed heating transistors are also provided.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: December 16, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ali Darwish, Hingloi Alfred Hung
  • Patent number: 8816397
    Abstract: A ring-shaped transistor includes a set of gates. Each gate of the set is disposed between a corresponding source and a corresponding drain. The set of gates are arranged such that all of the set of gates cannot be aligned with fewer than three imaginary straight lines drawn through the gates, with one of the imaginary straight lines passing only once though each of the set of gates.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 26, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ali Darwish, Hingloi Alfred Hung
  • Publication number: 20140077268
    Abstract: According to various embodiments, a distributed heating transistor includes: a plurality of active regions where transistor action occurs including a heat source; and at least one inactive region where transistor action does not occur and no heat source is present, wherein adjacent active regions are separated by the at least one inactive region. The distributed heating transistor may be configured as field effect transistors (FETs), and bipolar junction transistors (BJTs). Methods for forming the distributed heating transistors are also provided.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 20, 2014
    Applicant: U.S. Government as represented by the Secretary of the Army
    Inventors: Ali Darwish, Hingloi Alfred Hung