Patents by Inventor Tina May Lee

Tina May 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).

  • System and method for automatically enabling rapid charging of a battery in a portable phone
    Patent number: 5764035
    Abstract: A system and method for automatically enabling rapid charging of a battery in a portable phone when a battery charger is connected to the portable phone is disclosed. The system includes a battery charger circuit having an input for receiving an input voltage from the battery charger, a sense resistor through which a rapid charging current from the battery charger input voltage is generated, a charge switch connected to the sense resistor which receives the battery charger circuit input, a trickle resistor connected in parallel to the charge switch through which a slow charging current from the battery charger input voltage is generated, wherein the rapid charging current is generated when the charge switch is closed and the trickle charging current is generated when the charge switch is open, and an output for supplying the generated charging current to the battery.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: June 9, 1998
    Assignee: Ericsson Inc.
    Inventor: Tina May Lee