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).
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Patent number: 10079420Abstract: 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: GrantFiled: February 9, 2017Date of Patent: September 18, 2018Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ali M. Darwish, Hingloi Alfred Hung
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Patent number: 10069669Abstract: 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: GrantFiled: February 1, 2017Date of Patent: September 4, 2018Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ali M Darwish, Hingloi Alfred Hung
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Publication number: 20170346151Abstract: 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: ApplicationFiled: February 9, 2017Publication date: November 30, 2017Inventors: Ali M. Darwish, Hingloi Alfred Hung
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Publication number: 20170171012Abstract: 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: ApplicationFiled: February 1, 2017Publication date: June 15, 2017Inventors: Ali M. Darwish, Hingloi Alfred Hung
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Patent number: 9584169Abstract: 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: GrantFiled: December 15, 2015Date of Patent: February 28, 2017Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Joe Qiu, Ali Darwish, Hingloi Alfred Hung
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Patent number: 9362602Abstract: 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: GrantFiled: September 16, 2014Date of Patent: June 7, 2016Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ali M. Darwish, Hingloi Alfred Hung
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Patent number: 9000865Abstract: 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: GrantFiled: June 20, 2013Date of Patent: April 7, 2015Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ali M. Darwish, Hingloi Alfred Hung
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Publication number: 20150002243Abstract: 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: ApplicationFiled: September 16, 2014Publication date: January 1, 2015Inventors: Ali M. Darwish, Hingloi Alfred Hung
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Publication number: 20140368297Abstract: 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: ApplicationFiled: June 20, 2013Publication date: December 18, 2014Inventors: Ali M. Darwish, Hingloi Alfred Hung
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Patent number: 8912577Abstract: 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: GrantFiled: September 19, 2012Date of Patent: December 16, 2014Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ali Darwish, Hingloi Alfred Hung
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Patent number: 8816397Abstract: 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: GrantFiled: December 21, 2012Date of Patent: August 26, 2014Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Ali Darwish, Hingloi Alfred Hung
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Publication number: 20140077268Abstract: 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: ApplicationFiled: September 19, 2012Publication date: March 20, 2014Applicant: U.S. Government as represented by the Secretary of the ArmyInventors: Ali Darwish, Hingloi Alfred Hung