Patents by Inventor Julia Chow

Julia Chow 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).

  • Mobile phone interconnect to telephone
    Patent number: 9020445
    Abstract: An interface for connects a mobile phone and a plain old telephone service (POTS) phone. The interface detects a ring tone from a speaker output of the mobile phone and in response places a POTS ring signal on a ring line of the POTS phone. Upon a change in state of a hook signal, a hook state detector places a predetermined signal on a microphone input of the mobile phone.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: April 28, 2015
    Assignee: Victronix Capital Solution
    Inventor: Julia Chow
  • MOBILE PHONE INTERCONNECT TO TELEPHONE
    Publication number: 20140031032
    Abstract: An interface for connects a mobile phone and a plain old telephone service (POTS) phone. The interface detects a ring tone from a speaker output of the mobile phone and in response places a POTS ring signal on a ring line of the POTS phone. Upon a change in state of a hook signal, a hook state detector places a predetermined signal on a microphone input of the mobile phone.
    Type: Application
    Filed: June 11, 2013
    Publication date: January 30, 2014
    Inventor: Julia Chow
  • Mobile phone interconnect to telephone
    Patent number: 8503948
    Abstract: An interface for connects a mobile phone and a plain old telephone service (POTS) phone. The interface detects a ring tone from a speaker output of the mobile phone and in response places a POTS ring signal on a ring line of the POTS phone. The connector also connects and then disconnects a microphone input of the mobile phone and a ground input of the mobile phone when a user activates the POTS phone in response to the ring signal on the ring line of the POTS phone.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: August 6, 2013
    Inventor: Julia Chow
  • Ear muff
    Patent number: D780378
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: February 28, 2017
    Inventor: Julia Chow