Patents by Inventor Chung-Hsien Chuang

Chung-Hsien 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).

  • Publication number: 20130024065
    Abstract: An autonomous electronic device and a method of controlling the motion of the autonomous electronic device thereof are disclosed. The autonomous electronic device includes a motor, a wheel, a processing module, a motor controlling module, and a motion sensor module. The motor is used for driving the wheel. The motor controlling module is used for controlling the motor. The motion sensor module is used for generating a sensing signal according to surrounding conditions encountered by the autonomous electronic device and transferring the signal to the processing module, wherein when the sensing signal is an abnormal movement signal, the processing module controls the motor to adapt to the surrounding conditions via the motor controlling module according to the abnormal movement signal.
    Type: Application
    Filed: October 28, 2011
    Publication date: January 24, 2013
    Inventors: Hung-Chih Chiu, Chung-Hsien Chuang, Chi-Shing Lin, Harry Chia-Hung Hsu
  • Patent number: 8249797
    Abstract: A positioning system includes a positioning module, an application program, a control program, a first transmission interface, a second transmission interface and a switch module. The positioning module is for providing positioning information. The application program is for controlling the positioning module to receive the positioning information from the positioning module. The control program is for controlling the positioning module to receive the positioning information from the positioning module when the application program is shutdown. The application program receives the positioning information through the first transmission interface. The control program receives the positioning information through the second transmission interface. The switch module can be selectively switched to decide whether the positioning module is controlled by the application program or the control program to receive the positioning information.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: August 21, 2012
    Assignee: Mitac International Corp.
    Inventor: Chung-Hsien Chuang
  • Patent number: 7881363
    Abstract: A data transmission rate adjustment system and method thereof comprise a driving module and a control module. The driving module performs a predetermined mathematical calculation based on a transmission rate request to generate a divisor. The control module then performs a division that divides a reference frequency by the divisor to generate a first transmission rate so that a data receiving terminal can receive data sent from a data sending terminal through the driving module based on the first transmission rate. The driving module monitors a transmission error rate of the data received by the data receiving terminal. If the transmission error rate exceeds a predetermined value, the divisor is automatically adjusted to generate a second transmission rate. The second transmission rate is also provided to replace the first transmission rate.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: February 1, 2011
    Assignee: Mitac International Corp.
    Inventor: Chung-Hsien Chuang
  • Patent number: 7809504
    Abstract: A power management method is applicable to an electronic device having GPS navigation software and a GPS module for executing the navigation software. First, the data storage power (i.e. the RTC power) is enabled when the electronic device is powered on, and whether the electronic device receive an external power is detected; if yes, the master power (i.e. the RF power) is enabled and the GPS module is enabled to perform an initialization process and continue detecting whether the electronic device receives an external power; it no, the master power is disabled and detecting whether the electronic device receives an external power continues. Compared with the prior art, the power management method of the present invention, by managing powers installed in the electronic device and corresponding to the GPS module, increases the possibility for the navigation software to enter the hot start mode, and advances user's convenience.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: October 5, 2010
    Assignee: Mitac International Corporation
    Inventor: Chung-Hsien Chuang
  • Publication number: 20090034593
    Abstract: A data transmission rate adjustment system and method thereof comprise a driving module and a control module. The driving module performs a predetermined mathematical calculation based on a transmission rate request to generate a divisor. The control module then performs a division that divides a reference frequency by the divisor to generate a first transmission rate so that a data receiving terminal can receive data sent from a data sending terminal through the driving module based on the first transmission rate. The driving module monitors a transmission error rate of the data received by the data receiving terminal. If the transmission error rate exceeds a predetermined value, the divisor is automatically adjusted to generate a second transmission rate. The second transmission rate is also provided to replace the first transmission rate.
    Type: Application
    Filed: September 26, 2007
    Publication date: February 5, 2009
    Inventor: Chung-Hsien Chuang
  • Publication number: 20080059066
    Abstract: A positioning system includes a positioning module, an application program, a control program, a first transmission interface, a second transmission interface and a switch module. The positioning module is for providing positioning information. The application program is for controlling the positioning module to receive the positioning information from the positioning module. The control program is for controlling the positioning module to receive the positioning information from the positioning module when the application program is shutdown. The application program receives the positioning information through the first transmission interface. the control program receives the positioning information through the second transmission interface. The switch module can be selectively switched to decide whether the positioning module is controlled by the application program or the control program to receive the positioning information.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 6, 2008
    Applicant: MITAC INTERNATIONAL CORP.
    Inventor: CHUNG-HSIEN CHUANG
  • Publication number: 20080027630
    Abstract: A positioning system with a switching function includes a positioning information receiving module, a wireless signal receiving module, a transmission interface and a switching module. The positioning information receiving module is for receiving positioning information. A wireless signal receiving module is for receiving a wireless signal. The transmission interface is connected to a central processor of a positioning apparatus. The switching module is connected to the transmission interface and is for receiving a control signal in order to selectively switch a first state or a second state. When the switching module is at the first state, the transmission interface receives the positioning information transmitted by the positioning information receiving module through the switching module. When the switching module is at the second state, the transmission interface receives the wireless signal transmitted by the wireless signal receiving module through the switching module.
    Type: Application
    Filed: March 26, 2007
    Publication date: January 31, 2008
    Inventor: Chung-Hsien Chuang
  • Publication number: 20070162227
    Abstract: A power management method is applicable to an electronic device having GPS navigation software and a GPS module for executing the navigation software. First, the data storage power (i.e. the RTC power) is enabled when the electronic device is powered on, and whether the electronic device receive an external power is detected; if yes, the master power (i.e. the RF power) is enabled and the GPS module is enabled to perform an initialization process and continue detecting whether the electronic device receives an external power; it no, the master power is disabled and detecting whether the electronic device receives an external power continues. Compared with the prior art, the power management method of the present invention, by managing powers installed in the electronic device and corresponding to the GPS module, increases the possibility for the navigation software to enter the hot start mode, and advances user's convenience.
    Type: Application
    Filed: January 11, 2007
    Publication date: July 12, 2007
    Applicant: MITAC INTERNATIONAL CORPORATION
    Inventor: Chung Hsien Chuang