Patents by Inventor Xinyu Zai

Xinyu Zai 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).

  • Variable alarm for communication devices
    Patent number: 6975208
    Abstract: An apparatus in communication with a network having a tool for tracking connect time to the network. The apparatus may be communications device, a wireless handset, a personal digital assistant, a computer laptop, a portable communications device, a wired communications terminal, and/or a calling card. The tool for tracking connect time includes a periodic alarm having an onset and a duration time. Moreover, the tool for tracking connect time also includes means for varying the onset and the duration time of at least one period of the alarm with a variable arbitration offset.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: December 13, 2005
    Assignee: Lucent Technologies Inc.
    Inventor: Xinyu Zai
  • Variable alarm for communication devices
    Publication number: 20040061594
    Abstract: An apparatus in communication with a network having a tool for tracking connect time to the network. The apparatus may be communications device, a wireless handset, a personal digital assistant, a computer laptop, a portable communications device, a wired communications terminal, and/or a calling card. The tool for tracking connect time includes a periodic alarm having an onset and a duration time. Moreover, the tool for tracking connect time also includes means for varying the onset and the duration time of at least one period of the alarm with a variable arbitration offset.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventor: Xinyu Zai