Patents by Inventor Feng-Mao Chan

Feng-Mao Chan 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).

  • Patent number: 10659997
    Abstract: A mobile communication device and method including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: May 19, 2020
    Assignee: MEDIATEK INC.
    Inventors: Ming Lee, Feng-Mao Chan
  • Publication number: 20190037452
    Abstract: A mobile communication device and method including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.
    Type: Application
    Filed: October 2, 2018
    Publication date: January 31, 2019
    Inventors: Ming LEE, Feng-Mao CHAN
  • Patent number: 10111141
    Abstract: A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 23, 2018
    Assignee: MEDIATEK INC.
    Inventors: Ming Lee, Feng-Mao Chan
  • Publication number: 20170359757
    Abstract: A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from an advanced network and a legacy network. The controller receives a message from the advanced network via the wireless transceiver for redirecting the mobile communication device from the advanced network to the legacy network in response to a request for a call, searches for a suitable cell in the legacy network via the wireless transceiver in response to receiving the message, and camps on the suitable cell for making the call via the wireless transceiver regardless of the suitable cell being of a low priority and whether there is another suitable cell of a normal priority or not.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 14, 2017
    Inventors: Ming LEE, Feng-Mao CHAN
  • Patent number: 7840234
    Abstract: A method and mobile communication device capable of resuming operating function of a temporarily disable SIM (subscriber identity module) card are provided. The SIM card is disposed in a mobile equipment (ME), in which a code verification state of the SIM card is recorded. When the code verification state is “verification required” state, the ME records an original personal identification number (PIN)/PIN unlock key (PIN/PUK) code corresponding to the SIM card. The method includes the steps of executing a SIM card start-up procedure; determining whether the code verification state of PIN/PUK code is the same with the state stored in the ME and whether a PIN/PUK code re-read from the SIM card is the same with the original one; and determining whether the international mobile subscriber identity (IMSI) value re-read from the SIM card is the same with original one: if so, resume and re-use the SIM card.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: November 23, 2010
    Assignee: BenQ Corporation
    Inventor: Feng-Mao Chan
  • Publication number: 20050266886
    Abstract: A method and mobile communication device capable of resuming operating function of a temporarily disable SIM (subscriber identity module) card are provided. The SIM card is disposed in a mobile equipment (ME), in which a code verification state of the SIM card is recorded. When the code verification state is “verification required” state, the ME records an original personal identification number (PIN)/PIN unlock key (PIN/PUK) code corresponding to the SIM card. The method includes the steps of executing a SIM card start-up procedure; determining whether the code verification state of PIN/PUK code is the same with the state stored in the ME and whether a PIN/PUK code re-read from the SIM card is the same with the original one; and determining whether the international mobile subscriber identity (IMSI) value re-read from the SIM card is the same with original one: if so, resume and re-use the SIM card.
    Type: Application
    Filed: May 25, 2005
    Publication date: December 1, 2005
    Inventor: Feng-Mao Chan