Patents by Inventor Hung-Min Cheng

Hung-Min Cheng 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: 20210115398
    Abstract: A corneal tissue culture system and a corneal tissue culture method for increasing corneal endothelial cell density, healing of damaged corneal endothelial cell, and stimulating corneal endothelial cell proliferation are disclosed. The corneal tissue culture system comprises a tissue culture medium and a tissue culture dish to reduce metabolic pressure and reduce corneal tissue edema.
    Type: Application
    Filed: June 26, 2020
    Publication date: April 22, 2021
    Inventors: Hung-Chi CHEN, Chao-Min CHENG, Chieh-Cheng HUANG, Yi-Jen HSUEH
  • Publication number: 20200007098
    Abstract: An apparatus is disclosed for dual-mode amplification by varying a load impedance. In an example aspect, the apparatus includes a low-noise amplifier, a first component, a second component, and a switch. The first component has a first input impedance. The second component is coupled between the low-noise amplifier and the first component. The second component has a second input impedance that is greater than the first input impedance. The switch is coupled in parallel with the second component between the low-noise amplifier and the first component. The switch is configured to selectively be in an open state to engage the second component or a closed state to bypass the second component.
    Type: Application
    Filed: August 28, 2018
    Publication date: January 2, 2020
    Inventors: Hung-Min Cheng, Ara Bicakci, Haitao Gan, Shen Wang, Mounir Bohsali, Hedieh Elyasi, Beomsup Kim
  • Patent number: 10444780
    Abstract: Regulation/Bypass automation for a low drop-out regulator (LDO) with multiple supply voltages is disclosed. In some implementations, a LDO includes a resistor, a pass transistor having a source, a gate, and a drain to output a voltage Vout, the source coupled to a supply voltage, the gate coupled to an output of an operational transconductance amplifier (OTA), and the drain coupled to a first terminal of the resistor; a feedback switch having a drain, a gate, and a source, the drain coupled to a second terminal of the resistor, the source coupled to a negative input of the OTA; and an pull-down transistor having a drain, a gate, and a source, the source coupled to ground, and the drain coupled to the negative input of the OTA, wherein the gate of the pull-down transistor and the gate of the feedback switch are configured to receive a bypass signal.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yueh Chun Cheng, Hung-Min Cheng, Chien-Chih Lin