Patents by Inventor Ching-Lang Chuang

Ching-Lang Chuang 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 combining pager type personal digital assistant and mobile phone module
    Patent number: 6934560
    Abstract: A system combining a pager type personal digital assistant and a mobile phone module and the method of the same are disclose. The system has a pager for real-time receiving data from a broadcasting system in a whole day; A personal digital assistant unit serves for displaying received data and making a selection responsive to the received data. A GSM/DCS integrating circuit serves to control operations of components of a mobile phone. A communication interface has two frequency channels for bidirectionally transmitting speech and data signals and then transmitting signals through GSM or DCS channels. Thereby, data and speech can be transferred bidirectionally through three channels; and data propagation can be realized in time.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: August 23, 2005
    Assignee: TelePaq Technology Inc.
    Inventor: Ching-Lang Chuang
  • System combining pager type personal digital assistant and mobile phone module
    Publication number: 20030092466
    Abstract: A system combining a pager type personal digital assistant and a mobile phone module and the method of the same are disclose. The system has a pager for real-time receiving data from a broadcasting system in a whole day; A personal digital assistant unit serves for displaying received data and making a selection responsive to the received data. A GSM/DCS integrating circuit serves to control operations of components of a mobile phone. A communication interface has two frequency channels for bidirectionally transmitting speech and data signals and then transmitting signals through GSM or DCS channels. Thereby, data and speech can be transferred bidirectionally through three channels; and data propagation can be realized in time.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 15, 2003
    Applicant: TelePaq Technology Inc.
    Inventor: Ching-Lang Chuang
  • Personal digital assistant
    Patent number: D442173
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: May 15, 2001
    Assignee: TelePaq Technology Inc.
    Inventors: Ching-Yuan Wang, Ching-Lang Chuang