Patents by Inventor Ming Yao Lee

Ming Yao Lee 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).

  • Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption
    Patent number: 11510076
    Abstract: RF signal amplifiers are provided that include an RF input port, one or more active RF output ports, one or more passive RF output ports, an active communication path, and a passive communication path. Various embodiments include one or more switching devices, one or more directional couplers, one or more diplexers, a power divider network, and/or an attenuator.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: November 22, 2022
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • SIGNAL AMPLIFIERS THAT SWITCH TO AN ATTENUATED OR ALTERNATE COMMUNICATIONS PATH IN RESPONSE TO A POWER INTERRUPTION
    Publication number: 20210022017
    Abstract: RF signal amplifiers are provided that include an RF input port, one or more active RF output ports, one or more passive RF output ports, an active communication path, and a passive communication path. Various embodiments include one or more switching devices, one or more directional couplers, one or more diplexers, a power divider network, and/or an attenuator.
    Type: Application
    Filed: October 5, 2020
    Publication date: January 21, 2021
    Inventors: Robert R. RIGGSBY, Shi Man Li, Ming Yao Lee
  • Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption
    Patent number: 10798593
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: October 6, 2020
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • SIGNAL AMPLIFIERS THAT SWITCH TO AN ATTENUATED OR ALTERNATE COMMUNICATIONS PATH IN RESPONSE TO A POWER INTERRUPTION
    Publication number: 20190059009
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Application
    Filed: October 22, 2018
    Publication date: February 21, 2019
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption
    Patent number: 10117118
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: October 30, 2018
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • SIGNAL AMPLIFIERS THAT SWITCH TO AN ATTENUATED OR ALTERNATE COMMUNICATIONS PATH IN RESPONSE TO A POWER INTERRUPTION
    Publication number: 20170289826
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Application
    Filed: June 15, 2017
    Publication date: October 5, 2017
    Inventors: ROBERT R. RIGGSBY, SHI MAN LI, MING YAO LEE
  • Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption
    Patent number: 9686698
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: June 20, 2017
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • SIGNAL AMPLIFIERS THAT SWITCH TO AN ATTENUATED OR ALTERNATE COMMUNICATIONS PATH IN RESPONSE TO A POWER INTERRUPTION
    Publication number: 20150138960
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 21, 2015
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee
  • Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption
    Patent number: 8971792
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: March 3, 2015
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, Shi Man Li, Ming Yao Lee