Patents by Inventor Daching CHEN

Daching CHEN 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: 9742505
    Abstract: A testing device includes a connecting module and a processor electrically connected to the connecting module. The connecting module is electrically coupled with a plurality of communication devices under tests (DUTs) synchronously. The processor determines a schedule for the communication DUTs and tests the communication DUTs according to the schedule. A testing method is applied to the testing device to implement the operations.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: August 22, 2017
    Assignee: ALIFECOM TECHNOLOGY CORP.
    Inventors: Meng-Kai Su, Yi-Chung Shen, Shih-Hsiang Hu, Heng-Iang Hsu, Shu-Hua Kao, Daching Chen
  • Publication number: 20160146873
    Abstract: A testing device of a signaling mode and a testing method thereof are provided. The testing device includes a connecting module and a processor electrically connected to the connecting module. The connecting module is configured to electrically couple with a plurality of communication devices under tests (DUTs) simultaneously. The processor is configured to execute a network attaching procedure between the testing device and each of the communication DUTs, wherein the network attaching procedures are overlapped to be executed. The processor is further configured to test the communication DUTs after executing the network attaching procedures.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 26, 2016
    Inventors: Meng-Kai SU, Yi-Chung SHEN, Shih-Hsiang HU, Heng-Iang HSU, Shu-Hua KAO, Daching CHEN
  • Publication number: 20150097570
    Abstract: A testing device and a testing method are provided. The testing device includes a connecting module and a processor electrically connected to the connecting module. The connecting module is electrically coupled with a plurality of communication devices under tests (DUTs) synchronously. The processor determines a schedule for the communication DUTs and tests the communication DUTs according to the schedule. The testing method is applied to the testing device to implement the aforesaid operations.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Applicant: ALIFECOM TECHNOLOGY, CORP.
    Inventors: Meng-Kai SU, Yi-Chung SHEN, Shih-Hsiang HU, Heng-Iang HSU, Shu-Hua KAO, Daching CHEN
  • Patent number: 6539049
    Abstract: An integrated circuit device includes a clock generator having a primary input for coupling to a primary reference frequency source, a secondary input for coupling to a secondary reference frequency source, and an output that produces a primary digital transceiver clock signal having a frequency of chiprate (S)(n) in a primary mode, and a secondiary digital transceiver clock signal having a frequency of chiprate in a secondary power saving mode. A chiprate divider connected to the output of the clock generator produces a primary mode enable signal that has a frequency of chiprate when in a primary mode. A long PN generator and a short PN generator each have a clock input that is coupled to the output of the clock generator. A first multiplexer output produces the primary mode enable signal in a primary mode, and the secondary mode enable signal in a secondary mode.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 25, 2003
    Assignees: Dot Wireless, Inc., VLSI Technology, Inc.
    Inventors: John G. McDonough, Tien Q. Nguyen, David (Daching) Chen
  • Patent number: 6490329
    Abstract: An integrated circuit device including a FIFO and a clock generator having a pulse swallower. The pulse swallower eliminates pulses from a reference frequency signal, producing a primary digital transceiver clock signal having a frequency of chiprate(S)(n), which is used to clock a digital transceiver when the device is in a primary mode. A first clock divider divides the frequency of the primary digital transceiver clock signal to produce a FIFO output clock signal having a frequency of chiprate(S). The FIFO has a data bus input for coupling to a data output, for example from an analog transceiver. The FIFO also has an external clock input for coupling to a clock output, for example from the analog transceiver. The external clock signal clocks the data into the FIFO asynchronous with the primary digital transceiver clock signal at a frequency of chiprate(S). The internal clock signal clocks the data out of the FIFO, synchronous with the primary digital transceiver clock signal at a frequency of chiprate(S).
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: December 3, 2002
    Assignees: Dot Wireless, Inc., VSLI Technology, Inc.
    Inventors: Tien Q. Nguyen, John G. McDonough, David (Daching) Chen, Howard (Hau) Thien Tran
  • Publication number: 20010048635
    Abstract: An integrated circuit device including a FIFO and a clock generator having a pulse swallower. The pulse swallower eliminates pulses from a reference frequency signal, producing a primary digital transceiver clock signal having a frequency of chiprate(S)(n), which is used to clock a digital transceiver when the device is in a primary mode. A first clock divider divides the frequency of the primary digital transceiver clock signal to produce a FIFO output clock signal having a frequency of chiprate(S). The FIFO has a data bus input for coupling to a data output, for example from an analog transceiver. The FIFO also has an external clock input for coupling to a clock output, for example from the analog transceiver. The external clock signal clocks the data into the FIFO asynchronous with the primary digital transceiver clock signal at a frequency of chiprate(S). The internal clock signal clocks the data out of the FIFO, synchronous with the primary digital transceiver clock signal at a frequency of chiprate (S).
    Type: Application
    Filed: July 12, 2001
    Publication date: December 6, 2001
    Inventors: Tien Q. Nguyen, John G. McDonough, David (DACHING) Chen, Howard (HAU) Thien Tran