Patents by Inventor Yeow-Chyi Chen

Yeow-Chyi 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).

  • Publication number: 20130318363
    Abstract: A security system for code dump protection includes a storage device, a processor, and a decryption unit. The storage device has a protected storage area storing at least an encrypted code segment. The processor is utilized for issuing at least one address pattern to the storage device for obtaining at least one information pattern corresponding to the address pattern. The decryption unit checks the address pattern and the information pattern to generate a check result, and determines whether to decrypt the encrypted code segment in the protected storage area to generate a decrypted code segment to the processor according to the check result.
    Type: Application
    Filed: August 6, 2013
    Publication date: November 28, 2013
    Applicant: MEDIATEK INC.
    Inventors: Tse-Hong Wu, Yao-Dun Chang, Wan-Perng Lin, Yeow-Chyi Chen, Yung-Sheng Chiu
  • Patent number: 8447917
    Abstract: A flash memory device includes a memory array and a memory control circuit. The memory array includes memory modules. Each memory module is located in a memory channel and includes a predetermined number of memory cells. The memory control circuit is coupled to the memory array via an address latch enable (ALE) pin and a command latch enable (CLE) pin. The ALE pin and the CLE pin are coupled to all of the memory cells and shared by all of the memory cells in the memory array.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: May 21, 2013
    Assignee: Mediatek Inc.
    Inventors: Yeow-Chyi Chen, Hong-Ching Chen, Li-Chun Tu, Tzu-Chieh Lin, Chi-Wei Peng
  • Patent number: 8199618
    Abstract: A buffer control system for generating a buffered signal having reduced buffer delay time between playback of tracks includes a controller module for providing an end target and for selection of a servo data signal corresponding to a desired track; a compare circuit coupled to the servo data signal for comparing a timestamp of the servo data signal to the end target, and asserting an end match signal when the timestamp of the servo data signal matches the end target; and a data buffering unit for storing the servo data signal as stored data to fill a capacity of an internal memory, and streaming out the buffered signal from the stored data in the internal memory when the capacity has reached a predetermined level; wherein the controller module is for updating selection of the servo data signal according to a next desired track upon assertion of the end match signal.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: June 12, 2012
    Assignee: MediaTek Inc.
    Inventor: Yeow-Chyi Chen
  • Publication number: 20110010512
    Abstract: A method for controlling a storage system and the storage system using this method are disclosed. In the storage system, at least two memory units share an I/O bus. The shared I/O bus transfers information for each memory unit to execute an operation. The operation has at least one high priority cycle and at least one low priority cycle. When a low priority cycle is overlapped with a high priority cycle, the low priority cycle is suspended, and the high priority cycle is operated first. After the high priority cycle is finished, the suspended low priority cycle is then resumed. By doing so, the shared I/O bus may be used by one memory unit during a busy cycle for another memory unit, during which the latter memory unit does not use the I/O bus. Therefore, the I/O bus can be more efficiently used.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 13, 2011
    Applicant: MEDIATEK INC.
    Inventors: Tzu-chieh Lin, Hong-ching Chen, Yeow-chyi Chen
  • Publication number: 20100332734
    Abstract: A flash memory device includes a memory array and a memory control circuit. The memory array includes memory modules. Each memory module is located in a memory channel and includes a predetermined number of memory cells. The memory control circuit is coupled to the memory array via an address latch enable (ALE) pin and a command latch enable (CLE) pin. The ALE pin and the CLE pin are coupled to all of the memory cells and shared by all of the memory cells in the memory array.
    Type: Application
    Filed: March 11, 2010
    Publication date: December 30, 2010
    Applicant: MEDIATEK INC.
    Inventors: Yeow-Chyi Chen, Hong-Ching Chen, Li-Chun Tu, Tzu-Chieh Lin, Chi-Wei Peng
  • Publication number: 20100096629
    Abstract: The invention provides a multi-chip module. In one embodiment, the multi-chip module comprises a serial flash die and a primary die, and the primary die comprises a built-in self-test controller and a serial flash controller. The built-in self-test controller generates a write command to write first data to a memory location of the serial flash die, generates a read command to read second data from the memory location of the serial flash die, and compares the second data with the first data to determine whether the memory location is defective for generating failed address information about the serial flash die. The serial flash controller accesses the serial flash die according to the write command and the read command.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 22, 2010
    Applicant: MEDIATEK INC.
    Inventor: Yeow Chyi CHEN
  • Publication number: 20090327750
    Abstract: A security system for code dump protection includes a storage device, a processor, and a decryption unit. The storage device has a protected storage area storing at least an encrypted code segment. The processor is utilized for issuing at least one address pattern to the storage device for obtaining at least one information pattern corresponding to the address pattern. The decryption unit checks signal communicated between the processor and the storage device to generate a check result, and determines whether to decrypt the encrypted code segment in the protected storage area to generate a decrypted code segment to the processor according to the check result.
    Type: Application
    Filed: June 29, 2008
    Publication date: December 31, 2009
    Inventors: Tse-Hong Wu, Yao-Dun Chang, Wan-Perng Lin, Yeow-Chyi Chen, Yung-Sheng Chiu
  • Publication number: 20070195654
    Abstract: A buffer control system for generating a buffered signal having reduced buffer delay time between playback of tracks includes a controller module for providing an end target and for selection of a servo data signal corresponding to a desired track; a compare circuit coupled to the servo data signal for comparing a timestamp of the servo data signal to the end target, and asserting an end match signal when the timestamp of the servo data signal matches the end target; and a data buffering unit for storing the servo data signal as stored data to fill a capacity of an internal memory, and streaming out the buffered signal from the stored data in the internal memory when the capacity has reached a predetermined level; wherein the controller module is for updating selection of the servo data signal according to a next desired track upon assertion of the end match signal.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Inventor: Yeow-Chyi Chen