Patents by Inventor Jon-En Wang

Jon-En Wang 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: 20250112712
    Abstract: Methods, systems, and apparatuses for identifying network leaks are described herein. Data associated with network leaks may be collected and analyzed to determine a network leak type(s) associated with each network leak. Each network leak type may be associated with a particular radio frequency (RF) radiation pattern. RF radiation patterns as well as corresponding features associated with a number of network leak types may be stored in a database and/or library. A classification model may use the database and/or library to classify an unknown RF radiation pattern as being associated with a leak type(s) of the number of network leak types.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 3, 2025
    Inventors: Lawrence Wolcott, JR., Jonathan Leech, Thomas Bach, Jon-En Wang
  • Patent number: 9654062
    Abstract: An amplifier system an amplified path and a bypass path for carrying an RF signal. A switch in the amplified system routes the RF signal through the amplified path in response to a normal condition in the amplifier system, and routes the RF signal through the bypass path in response to an abnormal condition in the amplifier system. The amplified path includes an amplified forward circuit and a return circuit. The amplified forward circuit has an amplifier, and the return circuit has a return amplifier and detection circuitry for providing power to the return amplifier. The detection circuitry provides power to the return amplifier in response to a normal condition in the return circuit, and removes power from the return amplifier in response to an abnormal condition in the return circuit.
    Type: Grant
    Filed: February 15, 2014
    Date of Patent: May 16, 2017
    Inventors: Kang Lin, Jon-En Wang
  • Publication number: 20140375381
    Abstract: An amplifier system an amplified path and a bypass path for carrying an RF signal. A switch in the amplified system routes the RF signal through the amplified path in response to a normal condition in the amplifier system, and routes the RF signal through the bypass path in response to an abnormal condition in the amplifier system. The amplified path includes an amplified forward circuit and a return circuit. The amplified forward circuit has an amplifier, and the return circuit has a return amplifier and detection circuitry for providing power to the return amplifier. The detection circuity provides power to the return amplifier in response to a normal condition in the return circuit, and removes power from the return amplifier in response to an abnormal condition in the return circuit.
    Type: Application
    Filed: February 15, 2014
    Publication date: December 25, 2014
    Applicant: PCT International, Inc.
    Inventors: Kang Lin, Jon-En Wang
  • Publication number: 20140254441
    Abstract: The present invention helps eliminate ingress noise addition (i.e., the “noise funneling effect” for an HFC coaxial plant). A system according to various aspects of the present invention comprises a switch that includes: (i) a first state for allowing passage of a signal therethrough; and (ii) a second state for preventing passage of the signal therethrough. The system further includes a detection circuit in communication with the switch. The detection circuit is configured to: (i) detect whether the signal includes an amplitude of at least a predetermined level; (ii) operate the switch to the first state if the amplitude of the signal is at least the predetermined level; and (iii) operate the switch to the second state if the amplitude of the signal is less than the predetermined level, wherein operation of the switch to the second state is delayed by a predetermined period of time.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: PCT INTERNATIONAL, INC.
    Inventor: Jon-En Wang
  • Patent number: 8769597
    Abstract: The present invention helps eliminate ingress noise addition (i.e., the “noise funneling effect” for an HFC coaxial plant). A system according to various aspects of the present invention comprises a switch that includes: (i) a first state for allowing passage of a signal therethrough; and (ii) a second state for preventing passage of the signal therethrough. The system further includes a detection circuit in communication with the switch. The detection circuit is configured to: (i) detect whether the signal includes an amplitude of at least a predetermined level; (ii) operate the switch to the first state if the amplitude of the signal is at least the predetermined level; and (iii) operate the switch to the second state if the amplitude of the signal is less than the predetermined level, wherein operation of the switch to the second state is delayed by a predetermined period of time.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: July 1, 2014
    Assignee: PCT International, Inc.
    Inventor: Jon-En Wang
  • Patent number: 8667550
    Abstract: A house amplifier provides automatic gating to selectively block the return path signal in a cable network. The house amplifier includes ports connected to the cable network and to at least one home coaxial outlet. A forward signal path is coupled to pass a forward signal from the cable network. A reverse signal path is coupled to selectively pass a reverse signal from the home to the cable network. The reverse signal path includes a gate configured to block the reverse signal in response to a control signal. A detector circuit detects when the reverse signal is received and activates or deactivates the gate based on the detection. The detector circuit may include a timing circuit configured to provide a delay before deactivating the gate when the reverse signal is no longer detected.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: March 4, 2014
    Assignee: PCT International, Inc.
    Inventor: Jon-En Wang
  • Publication number: 20130067525
    Abstract: A cable service provisioning device includes an integrated cable modem to enable a cable provider to send configuration commands. The device includes an input component that receives an input signal from a cable network and an output component that provides an output signal to a customer premises. The device further includes a cable modem configured to receive configuration commands from a cable head end, radio frequency filters configured to selectively pass a portion of the input signal; and a radio frequency switchboard coupled to the input component, the output component, and the one or more radio frequency filters. A processor is coupled to the cable modem and the radio frequency switchboard and is configured to control the radio frequency switchboard to selectively enable or disable individual radio frequency filters in response to the configuration commands received from the cable head end.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: PCT International, Inc.
    Inventor: Jon-En Wang
  • Publication number: 20100223651
    Abstract: The present invention helps eliminate ingress noise addition (i.e., the “noise funneling effect” for an HFC coaxial plant). A system according to various aspects of the present invention comprises a switch that includes: (i) a first state for allowing passage of a signal therethrough; and (ii) a second state for preventing passage of the signal therethrough. The system further includes a detection circuit in communication with the switch. The detection circuit is configured to: (i) detect whether the signal includes an amplitude of at least a predetermined level; (ii) operate the switch to the first state if the amplitude of the signal is at least the predetermined level; and (iii) operate the switch to the second state if the amplitude of the signal is less than the predetermined level, wherein operation of the switch to the second state is delayed by a predetermined period of time.
    Type: Application
    Filed: May 12, 2010
    Publication date: September 2, 2010
    Inventor: Jon-En Wang
  • Publication number: 20090320085
    Abstract: In a traditional HFC plant, the return path signals originating from cable modems, eMTAs, and settop boxes are transmitted in the 5-42 MHz range (other countries use frequencies such as 5-30 MHz, 5-55 MHz, and 5-65 MHz). These signals with entry points at any RF connection point in the home are combined by RF combiners at the side of the house. Furthermore, RF return path signals from multiple homes are combined by RF taps into a coaxial cable TV plant, and transmitted back to a hub or headend either in RF or thru a fiber optic network. In addition to combining all RF signals, the return path system combines all the ingress noise from all the RF connection points, which has an adverse impact on signal quality. This invention takes advantage of the burst nature of RF return path signals to insert an automatic gating function into the return signal path of a house amplifier so that the return signal path is shut off or attenuated when no RF return signal is present.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 24, 2009
    Inventor: Jon-En Wang
  • Publication number: 20050078918
    Abstract: The present invention is a line-mounted electronic device which converts an RF-electrical coaxial cable component tap to include optical transmitter and receiver capability while maintaining RF functionality. Invention retrofits to the baseplate of an existing circuit component tap without further modification to other in-place circuit components.
    Type: Application
    Filed: May 12, 2003
    Publication date: April 14, 2005
    Applicant: PCT International, Inc.
    Inventor: Jon-En Wang
  • Patent number: D464965
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: October 29, 2002
    Assignee: Phoenix Communication Technology
    Inventors: Jon-En Wang, John Wiseman