Patents by Inventor Jinshu Chen

Jinshu Chen 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).

  • Dual-channel analog door entry system and a method thereof
    Patent number: 9042533
    Abstract: The present invention discloses a dual-channel analog door entry system and a method thereof. The dual-channel analog door entry system comprises two cables connected between the building gateway and the floor distributors, configured to transmit audio and/or video signals between the outdoor stations and indoor phones; the building gateway, configured to receive a call request from at least one of the outdoor stations, identify and assign an available cable as an intercom channel, send the call request to each of the floor distributors via the intercom channel, and switch the audio and/or video signals from the outdoor station to the available cable; at least one of floor distributors, configured to receive and forward the call request to a desired indoor phone, receive a call response from the desired indoor phone if the desired indoor phone is available, and switch the audio and/or video signals from the available cable to the desired indoor phone.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: May 26, 2015
    Assignee: ABB Technology Ltd.
    Inventors: Dalin Zhou, Jinshu Chen, Xiaoping Zhou, Yangpeng Zhang
  • DUAL-CHANNEL ANALOG DOOR ENTRY SYSTEM AND A METHOD THEREOF
    Publication number: 20140241516
    Abstract: The present invention discloses a dual-channel analog door entry system and a method thereof. The dual-channel analog door entry system comprises two cables connected between the building gateway and the floor distributors, configured to transmit audio and/or video signals between the outdoor stations and indoor phones; the building gateway, configured to receive a call request from at least one of the outdoor stations, identify and assign an available cable as an intercom channel, send the call request to each of the floor distributors via the intercom channel, and switch the audio and/or video signals from the outdoor station to the available cable; at least one of floor distributors, configured to receive and forward the call request to a desired indoor phone, receive a call response from the desired indoor phone if the desired indoor phone is available, and switch the audio and/or video signals from the available cable to the desired indoor phone.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 28, 2014
    Applicant: ABB Technology Ltd.
    Inventors: Dalin Zhou, Jinshu Chen, Xiaoping Zhou, Yangpeng Zhang