Patents by Inventor Wei-Cheng Chang Chien

Wei-Cheng Chang Chien 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: 8755621
    Abstract: A data compression system and a data compression method using the same are provided. The data compression method includes acquiring original data from a memory and performs image processing and quantization on the original data to transform the original data into a quantization matrix. The data compression method then transforms the quantization matrix into a digital sequence based on a coding table and compares the data volume of the digital sequence and a target volume to generate a volume difference. The data compression method transforms the digital sequence into an inverse quantization matrix based on the volume difference and then transforms the inverse quantization matrix into a modified digital sequence based on the volume difference. The data compression method repeats the processes until the data volume of the digital sequence is substantially equal to a target volume or within an acceptable range of the target volume.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: June 17, 2014
    Assignee: Alpha Imaging Technology Corp.
    Inventors: Cheng-Ta Chiang, Wei-Cheng Chang Chien, Wei-Hao Yuan, Chieh-Yuan Hsu, Te-Wei Lee, Tzu-Yun Kuo, Wei-Cheng Chang
  • Patent number: 8578392
    Abstract: An image-data-processing device for processing first image data includes an image processing chip with a first memory and a second memory. The image processing chip further includes a data managing unit and a coding module, wherein the memory space of the second memory is greater than the memory space of the first memory. The data managing unit receives the first image data from an image sensor and transmits the image data to the encoding module, wherein the encoding module generates a second image data based on the first image data received. The data managing unit then selectively stores the second image data in the first memory or the second memory.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: November 5, 2013
    Assignee: Alpha Imaging Technology Corp.
    Inventor: Wei-Cheng Chang Chien
  • Patent number: 8421778
    Abstract: A device and method is provided to selectively modify the transmission performance of a frame data. Through a parallel transmission interface, the frame data is transmitted under a corresponding interface protocol and transmitted toward an image display. The method first detects a data size of the frame data and then provides a transmission control signal based on the detection of the data size. Next, selectively divide the frame data by a factor M based on the transmission control signal. Furthermore, transmit the divided frame data at a raised clock rate based on the factor M. Afterwards, temporarily store the divided frame data about to be transmitted toward the image display until the whole frame data is transmitted.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: April 16, 2013
    Assignee: Alpha Imaging Technology Corp.
    Inventors: Hsiu-Wen Wang, Wei-Hao Yuan, Wei-Cheng Chang Chien, Ming-Jun Hsiao
  • Publication number: 20120072921
    Abstract: An image-data-processing device for processing first image data includes an image processing chip with a first memory and a second memory. The image processing chip further includes a data managing unit and a coding module, wherein the memory space of the second memory is greater than the memory space of the first memory. The data managing unit receives the first image data from an image sensor and transmits the image data to the encoding module, wherein the encoding module generates a second image data based on the first image data received. The data managing unit then selectively stores the second image data in the first memory or the second memory.
    Type: Application
    Filed: August 3, 2011
    Publication date: March 22, 2012
    Inventor: Wei-Cheng CHANG CHIEN
  • Publication number: 20110116725
    Abstract: A data compression system and a data compression method using the same are provided. The data compression method includes acquiring original data from a memory and performs image processing and quantization on the original data to transform the original data into a quantization matrix. The data compression method then transforms the quantization matrix into a digital sequence based on a coding table and compares the data volume of the digital sequence and a target volume to generate a volume difference. The data compression method transforms the digital sequence into an inverse quantization matrix based on the volume difference and then transforms the inverse quantization matrix into a modified digital sequence based on the volume difference. The data compression method repeats the processes until the data volume of the digital sequence is substantially equal to a target volume or within an acceptable range of the target volume.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 19, 2011
    Inventors: Cheng-Ta Chiang, Wei-Cheng Chang Chien, Wei-Hao Yuan, Chieh-Yuan Hsu, Te-Wei Lee, Tzu-Yun Kuo, Wei-Cheng Chang
  • Patent number: 7894791
    Abstract: The present invention discloses a multi-channel multi-media data processing method, comprising the steps of: providing a demodulator circuit and a multi-media processing circuit, the multi-media processing circuit including a DRAM; receiving multi-channel analog signals, and performing analog-to-digital conversion and demodulation on the signals by the demodulator circuit; storing the converted and demodulated multi-channel signals in the DRAM; and reading the signals of at least one channel from the DRAM.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: February 22, 2011
    Assignee: Alpha Imaging Technology Corporation
    Inventors: Chao-Chung Chang, Ming-Feng Yu, Ming-Jun Hsiao, Wei-Hao Yuan, Wei-Cheng Chang Chien
  • Publication number: 20090046081
    Abstract: A device and method is provided to selectively modify the transmission performance of a frame data. Through a parallel transmission interface, the frame data is transmitted under a corresponding interface protocol and transmitted toward an image display. The method first detects a data size of the frame data and then provides a transmission control signal based on the detection of the data size. Next, selectively divide the frame data by a factor M based on the transmission control signal. Furthermore, transmit the divided frame data at a raised clock rate based on the factor M. Afterwards, temporarily store the divided frame data about to be transmitted toward the image display until the whole frame data is transmitted.
    Type: Application
    Filed: April 24, 2008
    Publication date: February 19, 2009
    Applicant: ALPHA IMAGING TECHNOLOGY CORP.
    Inventors: Hsiu-Wen Wang, Wei-Hao Yuan, Wei-Cheng Chang Chien, Ming-Jun Hsiao
  • Publication number: 20090042523
    Abstract: The present invention discloses a multi-media data processing method for use in an integrated circuit having an error correction circuit, the method comprising the steps of: receiving broadcasted analog data; converting the analog data to digital data; and storing the digital data into a main memory without error correction, wherein the digital data stored in the main memory are subject to error correction only when it is required, but are not subject to error correction if it is not required.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventors: Chao-Chung Chang, Ming-Feng Yu, Ming-Jun Hsiao, Wei-Hao Yuan, Wei-Cheng Chang Chien
  • Publication number: 20080091919
    Abstract: The present invention discloses a multi-channel multi-media data processing method, comprising the steps of: providing a demodulator circuit and a multi-media processing circuit, the multi-media processing circuit including a DRAM; receiving multi-channel analog signals, and performing analog-to-digital conversion and demodulation on the signals by the demodulator circuit; storing the converted and demodulated multi-channel signals in the DRAM; and reading the signals of at least one channel from the DRAM.
    Type: Application
    Filed: August 10, 2007
    Publication date: April 17, 2008
    Inventors: Chao-Chung Chang, Ming-Feng Yu, Ming-Jun Hsiao, Wei-Hao Yuan, Wei-Cheng Chang Chien