Patents by Inventor Chao-Chung Cheng

Chao-Chung Cheng 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: 20100080485
    Abstract: A depth-based image enhancement system is disclosed. A depth estimation unit generates three-dimensional (3D) depth information from a two-dimensional (2D) image. Subsequently, an image enhancement unit enhances the 2D image according to the 3D depth information.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Liang-Gee Chen Chen, Chao-Chung Cheng Cheng, Chung-To Li Li, Ling-Hsiu Huang Huang
  • Publication number: 20100080481
    Abstract: A system of generating three-dimensional (3D) depth information is disclosed. A color and object independent local blurriness estimation unit analyzes blurriness of each pixel of a two-dimensional (2D) image. Subsequently, a depth assignment unit assigns depth information to the 2D image according to the analyzed blurriness.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Liang-Gee Chen, Chao-Chung Cheng, Chung-Te Li, Ling-Hsiu Huang
  • Publication number: 20100053416
    Abstract: The invention presents a system and method for obtaining object depth through digital signal processing. The auto depth-field capturing method for a camera includes the steps of a) taking plural images; b) estimating plural epipolar data of the plural images for obtaining a matrix describing motion and directional vectors; c) estimating a location data in response to the plural epipolar data and the matrix; d) rectifying the plural images corresponding to the plural epipolar data for obtaining plural rectified images; e) calculating the location data for obtaining disparity vectors of the rectified images; f) obtaining a depth map in response to the disparity vectors and the location data; and g) painting a 3D image in correspondence with the depth map. The depth estimation method of the present invention is fully automatic without change of the camera itself.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Applicant: National Taiwan University
    Inventors: Liang-Gee Chen, Wan-Yu Chen, Yu-Lin Chang, Chao-Chung Cheng
  • Publication number: 20100054541
    Abstract: A driving support system with plural dimension processing units (DPUs) for indicating a condition of a surrounding area is disclosed. The driving support system of a vehicle includes plural image capturing devices disposed around the vehicle; at least a dimension processing unit (DPU) connected with the plural image capturing devices for receiving images from the plural image capturing devices and then producing plural related depth maps; a controller connected with the DPU for receiving the plural related depth maps and then producing an indicating data; and a display device connected with the controller for displaying the indicating data around the vehicle in a vertical view.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Applicant: National Taiwan University
    Inventors: Liang-Gee Chen, Yu-Lin Chang, Yi-Min Tsai, Chao-Chung Cheng
  • Publication number: 20060262862
    Abstract: A deblocking filtering method used on video encoding/decoding includes: sequentially reading the subblocks adjacent to a vertical edge according to a deblocking direction, and performing a deblocking process on the vertical edge; performing a transposition on the pixel data of a current subblock; performing the deblocking process on a parallel edge of the current subblock, and outputting the pixel data of another subblock adjacent to the parallel edge after transposition; sequentially storing a plurality of current subblocks; transposing and outputting the pixel data of the plurality of current subblocks after completion of the deblocking of the current macroblock.
    Type: Application
    Filed: April 13, 2006
    Publication date: November 23, 2006
    Inventors: Chao-chung Cheng, Tian-sheuan Chang, Tien-hung Lin
  • Publication number: 20060262983
    Abstract: A method for selecting intra prediction mode includes: calculating an error value for each of the prediction modes in a first group, wherein the first group includes two prediction modes where an included angle between their prediction directions is the largest; calculating an error value for each of the prediction modes in a second group, wherein the prediction modes in the second group refer to the prediction modes with prediction directions near the two sides of the prediction direction of the prediction mode with smaller error value in the first group; calculating an error value for the prediction mode in a third group, wherein the prediction mode in the third group is the prediction mode with prediction direction adjacent to the prediction direction of the prediction mode with smaller error value in the second group; calculating a DC prediction mode in the plurality of prediction modes; and among the prediction modes with calculated error values, selecting a prediction mode with a smallest error value to
    Type: Application
    Filed: May 9, 2006
    Publication date: November 23, 2006
    Inventors: Chao-chung Cheng, Tian-sheuan Chang, Chi-ken Tsai
  • Patent number: 7097463
    Abstract: An electrical connector (1) is used for electrically connecting a ball grid array (BGA) central processing unit (CPU) (3) with a printed circuit board (PCB). The connector includes a generally rectangular insulative housing (10) and a number of terminals (20) received in the housing. Each of the terminals includes a connecting portion (200), a solder pad (202) extending from a bottom end of the connecting portion, and a cantilever (204) extending aslant from a top end of the connecting portion. The cantilever has a concave portion (206) near a free end thereof. When the CPU with a multiplicity of solder balls is attached onto the connector, the concave portions of the terminals cover bottom portions of the solder balls. Therefore, the terminals of the connector electrically connect with the solder balls of the CPU steadily, and a reliable connection between the CPU and the PCB is established.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: August 29, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Shih-Wei Hsiao, Chao-Chung Cheng, Yao-Chi Huang
  • Patent number: 6948947
    Abstract: A socket connector for carrying an integrated circuit package includes an insulative housing, a stiffener surrounding the housing, a load plate pivotably assembled with one end of the stiffener and a load lever pivotably attached to the other end of the stiffener. The load plate defines a pair of pressing portions. Each of the pressing portions defines a wider part and a narrower part. During the rotation process of the load plate, the wider part firstly presses a pressing point of the IC package. A critical point, on which the wider part firstly presses, is ascertained that a distance from the critical point to a center of the IC package is approximately 5/24 of the entire length along the same direction. The pressing point is within a range from the critical point to the center of the IC package.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: September 27, 2005
    Assignee: Hon Hai Precision Ind. Co., Ltd
    Inventors: Genn-Sheng Lee, Chao-Chung Cheng, Wen-Yi Rai
  • Publication number: 20050202696
    Abstract: An electrical connector (1) is used for electrically connecting a ball grid array (BGA) central processing unit (CPU) (3) with a printed circuit board (PCB). The connector includes a generally rectangular insulative housing (10) and a number of terminals (20) received in the housing. Each of the terminals includes a connecting portion (200), a solder pad (202) extending from a bottom end of the connecting portion, and a cantilever (204) extending aslant form a top end of the connecting portion. The cantilever has a convex portion (206) near a free end thereof. When the CPU with a multiplicity of solder balls is attached onto the connector, the convex portions of the terminals cover bottom portions of the solder balls. Therefore, the terminals of the connector electrically connect with the solder balls of the CPU steadily, and a reliable connection between the CPU and the PCB is established.
    Type: Application
    Filed: December 28, 2004
    Publication date: September 15, 2005
    Inventors: Shih-Wei Hsiao, Chao-Chung Cheng, Yao-Chi Huang
  • Publication number: 20050174746
    Abstract: An LGA contact (50) comprises a retention body (51) and a pair of arms (52, 55) extending respectively from opposite sides of the retention body for electrically mating with corresponding conductive members (40, 60), respectively. Each arm is formed with a resiliently deformable hand (53, 56). In use, the two hands of the pair of arms are each resiliently pressed against each other to establish an extra electrical path on the contact. With this configuration of the contact, even though the hands each are devised to be relatively long or short, secure and steady electrical engagement between the hands can be assured and the impedance of the contact is securely and efficiently decreased.
    Type: Application
    Filed: February 7, 2005
    Publication date: August 11, 2005
    Inventors: Shihwei Hsiao, Chao-Chung Cheng, Yao-Chi Huang
  • Publication number: 20050142919
    Abstract: A socket connector for carrying an integrated circuit package includes an insulative housing, a stiffener surrounding the housing, a load plate pivotably assembled with one end of the stiffener and a load lever pivotably attached to the other end of the stiffener. The load plate defines a pair of pressing portions. Each of the pressing portions defines a wider part and a narrower part. During the rotation process of the load plate, the wider part firstly presses a pressing point of the IC package. A critical point, on which the wider part firstly presses, is ascertained that a distance from the critical point to a center of the IC package is approximately {fraction (5/24)} of the entire length along the same direction. The pressing point is within a range from the critical point to the center of the IC package.
    Type: Application
    Filed: August 27, 2004
    Publication date: June 30, 2005
    Inventors: Genn-Sheng Lee, Chao-Chung Cheng, Wen-Yi Rai
  • Patent number: 6805562
    Abstract: A tool (3) comprises a substantially rectangular base (30) defining a pair of chambers (36) in two adjacent sides thereof, and a pair of actuation member (31) deposed in the chamber respectively. Each actuation member comprises a bridging portion (34) spanning across the chamber and connecting with the base, a vertical driving portion (33) perpendicularly crossing the bridging portion, a connecting portion (35) connecting a junction of the bridging portion and driving portion with a bottom of the base, and an operating portion (32) adjoining an outside of the driving portion. The operating portion comprises a beam (320) extending perpendicurlary from a bottom of the driving portion, and a push button (321) formed at a free end of the beam and protruding out from the base. The push button is pushable to pivot an upper section of the driving portion.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: October 19, 2004
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Fang-Jwu Liao, Chao-Chung Cheng
  • Publication number: 20040185687
    Abstract: A tool (3) comprises a substantially rectangular base (30) defining a pair of chambers (36) in two adjacent sides thereof, and a pair of actuation member (31) disposed in the chambers respectively. Each actuation member comprises a bridging portion (34) spanning across the chamber and connecting with the base, a vertical driving portion (33) perpendicularly crossing the bridging portion, a connecting portion (35) connecting a junction of the bridging portion and driving portion with a bottom of the base, and an operating portion (32) adjoining an outside of the driving portion. The operating portion comprises a beam (320) extending perpendicularly from a bottom of the driving portion, and a push button (321) formed at a free end of the beam and protruding out from the base. The push button is pushable to pivot an upper section of the driving portion.
    Type: Application
    Filed: September 24, 2003
    Publication date: September 23, 2004
    Inventors: Fang-Jwu Liao, Chao-Chung Cheng
  • Patent number: 6558182
    Abstract: A socket connector includes a housing positioned on a circuit board and movably supporting a cover. Cells are defined in the housing for retaining dual-beam terminals. The cover carries a central processing unit module having pin legs extending through holes defined in the cover and projecting into the cells of the housing. The cover is movable in a moving direction to bring the pin legs into engagement with the terminals. Each terminal includes a base section retained in each cell and a tail extending and beyond the housing for being soldered to the circuit board. Two beams extend from the base section, substantially opposite to the tail. Each beam forms a spring arm. The spring arms are opposite to and spaced from each other for engaging the corresponding pin leg therebetween. The beams are symmetric with respect to an imaginary plane that is normal to the base section and coincident with the moving direction.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: May 6, 2003
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Masao Ohkita, Chao-Chung Cheng, Nick Lin, Fang-Chu Liao
  • Patent number: 6461183
    Abstract: A socket connector includes a housing positioned on a circuit board and movably supporting a cover. Cells are defined in the housing for retaining dual-beam terminals. The cover carries a central processing unit module having pin legs extending through holes defined in the cover and projecting into the cells of the housing. The cover is movable in a moving direction to bring the pin legs into engagement with the terminals. Each terminal includes a base section retained in each cell and a tail extending and beyond the housing for being soldered to the circuit board. Two beams extend from the base section, substantially opposite to the tail. Each beam forms a spring arm. The spring arms are opposite to and spaced from each other for engaging the corresponding pin leg therebetween. The beams are symmetric with respect to an imaginary plane that is normal to the base section and coincident with the moving direction.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: October 8, 2002
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Masao Ohkita, Chao-Chung Cheng, Nick Lin, Fang-Chu Liao
  • Patent number: D564921
    Type: Grant
    Filed: April 29, 2007
    Date of Patent: March 25, 2008
    Assignee: Lite-On Technology Corp.
    Inventor: Chao-Chung Cheng