Patents by Inventor Shi Man Li

Shi Man Li 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: 20170302883
    Abstract: Power divider networks are provided that have Multimedia Over Coax Alliance (“MoCA”) bypass paths.
    Type: Application
    Filed: June 30, 2017
    Publication date: October 19, 2017
    Inventor: Shi Man LI
  • Patent number: 9795043
    Abstract: Radio frequency subscriber drop units include a housing having an input port and an output port and a printed circuit board mounted in an interior of the housing. The printed circuit board includes a dielectric layer, a wiring layer that includes conductive wirings that comprise at least part of a communications path between the input port and the output port that is on a first face of the dielectric layer, and a ground plane layer that includes a conductive ground plane that is on a second face of the dielectric layer.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: October 17, 2017
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Shi Man Li, Chi-Min Kang, Jui-Huang Chung
  • 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
  • Publication number: 20170264963
    Abstract: RF signal amplifiers are provided that include an RF input port, a power divider network having a plurality of active output ports, an active path connecting the RF input port to the power divider network, the active path including an upstream diplexer, a downstream diplexer and a power amplifier between the upstream diplexer and the downstream diplexer, a passive output port, a MoCA diplexer that is coupled to the passive output port, a passive path connecting the RF input port to the MoCA diplexer and a MoCA rejection filter between the power divider network and the active path.
    Type: Application
    Filed: May 30, 2017
    Publication date: September 14, 2017
    Inventor: Shi Man LI
  • Patent number: 9743038
    Abstract: Power divider networks are provided that have Multimedia Over Coax Alliance (“MoCA”) bypass paths.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 22, 2017
    Assignee: CommScope, Inc. of North Carolina
    Inventor: Shi Man Li
  • Patent number: 9699516
    Abstract: RF signal amplifiers are provided that include an RF input port, a power divider network having a plurality of active output ports, an active path connecting the RF input port to the power divider network, the active path including an upstream diplexer, a downstream diplexer and a power amplifier between the upstream diplexer and the downstream diplexer, a passive output port, a MoCA diplexer that is coupled to the passive output port, a passive path connecting the RF input port to the MoCA diplexer and a MoCA rejection filter between the power divider network and the active path.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 4, 2017
    Assignee: CommScope, Inc. of North Carolina
    Inventor: Shi Man Li
  • 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
  • Publication number: 20150288391
    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 22, 2015
    Publication date: October 8, 2015
    Inventors: Shi Man Li, Robert R. Riggsby
  • Publication number: 20150288920
    Abstract: Power divider networks are provided that have Multimedia Over Coax Alliance (“MoCA”) bypass paths.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 8, 2015
    Inventor: Shi Man Li
  • Patent number: 9094101
    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 25, 2012
    Date of Patent: July 28, 2015
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Shi Man Li, Robert R. Riggsby
  • Publication number: 20150207525
    Abstract: RF signal amplifiers are provided that include an RF input port, a power divider network having a plurality of active output ports, an active path connecting the RF input port to the power divider network, the active path including an upstream diplexer, a downstream diplexer and a power amplifier between the upstream diplexer and the downstream diplexer, a passive output port, a MoCA diplexer that is coupled to the passive output port, a passive path connecting the RF input port to the MoCA diplexer and a MoCA rejection filter between the power divider network and the active path.
    Type: Application
    Filed: December 5, 2014
    Publication date: July 23, 2015
    Inventor: Shi Man Li
  • 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
  • Publication number: 20150130555
    Abstract: Radio frequency subscriber drop units include a housing having an input port and an output port and a printed circuit board mounted in an interior of the housing. The printed circuit board includes a dielectric layer, a wiring layer that includes conductive wirings that comprise at least part of a communications path between the input port and the output port that is on a first face of the dielectric layer, and a ground plane layer that includes a conductive ground plane that is on a second face of the dielectric layer.
    Type: Application
    Filed: September 16, 2014
    Publication date: May 14, 2015
    Inventors: Shi Man Li, Chi-Min Kang, Jui-Huang Chung
  • Publication number: 20150113586
    Abstract: Subscriber drop units include a housing having a top wall that has an exterior surface and an interior surface and a plurality of sidewalls that extend downwardly from the top wall, the top wall and the sidewalls defining an interior cavity. An input port and at least one output port extend through the housing. A printed circuit board is mounted within the interior cavity.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 23, 2015
    Inventors: Shi Man Li, Robert R. Riggsby, Robert E. Darrow, Chi-Min Kang, Jui-Huang Chung
  • Publication number: 20150064946
    Abstract: RF subscriber drop units have a housing that has a port aperture therethrough and a connector port that extends outwardly from the housing and surrounds the port aperture. The connector port includes a contact assembly that holds a spring contact, the spring contact including a contact tail that extends through the port aperture. A conductive spark gap unit that has a spark gap aperture is further provided and arranged so that the contact tail extends through the spark gap aperture.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: ROBERT E. DARROW, Shi Man Li
  • 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
  • Patent number: 8939796
    Abstract: A coaxial connector includes a surge protection component including a plurality of elongated members, a body portion that is configured to receive the surge protection component such that the elongated members extend along an outer surface thereof, and a center conductor disposed inside the body portion and spaced apart from the surge protection component so as to create a gap therebetween.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 27, 2015
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert E. Darrow, Kenneth Steven Wood, Robert R. Riggsby, Shi Man Li, Mark Vogel
  • Patent number: 8920193
    Abstract: A preconnectorized apparatus includes a housing and at least one F-style coaxial cable connector extending therefrom. Each connector has a connector body with a cable receiving end and an opposite forward end. A compression element coupled to the receiving end is movable between an unseated position and a seated position and is configured to secure a coaxial cable within the connector body when in the seated position. The connector includes a tubular inner contact post having a free end configured to be inserted into a prepared coaxial cable end. A receiving member positioned forward of the contact post is electrically connected to a circuit within the housing. The receiving member receives a center conductor of a coaxial cable inserted through the connector body cable receiving end and electrically connects the center conductor to the circuit.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 30, 2014
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Robert R. Riggsby, John C. Chamberlain, Shi Man Li
  • Publication number: 20130343245
    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 25, 2012
    Publication date: December 26, 2013
    Inventors: Shi Man Li, Robert R. Riggsby
  • Publication number: 20130342272
    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: February 7, 2013
    Publication date: December 26, 2013
    Applicant: COMMSCOPE, INC. OF NORTH CAROLINA
    Inventors: Robert R. Riggsby, Shi Man Li, Lee Ming Yao