Patents by Inventor Wen-Hsiung Chen

Wen-Hsiung 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: 8723914
    Abstract: A method is provided in one example and includes receiving a video input from a camera element; using change detection statistics to identify background image data; using the background image data as a temporal reference to determine foreground image data of a particular video frame within the video input; using a selected foreground image for a background registration of a subsequent video frame; and providing at least a portion of the subsequent video frame to a next destination.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 13, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: David J. Mackie, Dihong Tian, Andrew P. Weir, Maurice Buttimer, Joseph T. Friel, J. William Mauchly, Wen-Hsiung Chen
  • Publication number: 20140113097
    Abstract: A SMT tape includes a carrier tape, a number of separation pads, a number of workpieces, and a package tape. The carrier tape includes a package surface and defines a number of receiving grooves in the package surface and arranged along a length direction of the carrier tape. The separation pads are received in the receiving grooves and fixed to bottom surfaces of the receiving grooves respectively. Each separation pad includes a separation surface opposite to a bottom surface of the corresponding receiving groove and a number of protrusions protruding up from the separation surface. The workpieces are respectively received in the receiving grooves. Each workpiece includes a main body and an adhesive layer positioned between the corresponding separation pad and the main body. The package tape is adhered to the package surface and seals the receiving grooves.
    Type: Application
    Filed: December 25, 2012
    Publication date: April 24, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: YONG LI, WEN-HSIUNG CHEN, SHIN-WEN CHEN, SHU-SHENG PENG, WEN-CHANG CHEN, YU-TSAN CHENG, LING-QI YI, LI-MIN LIU, FU-LI LONG, FU-CHUN LI
  • Patent number: 8681874
    Abstract: Particular embodiments generally relate to video insertion information insertion in a compressed bitstream. In one embodiment, a compressed bitstream of data is received. Video insertion information to be added to the bitstream is then determined. One or more macroblocks out of a plurality of macroblocks are determined in the compressed bitstream. The macroblocks are determined in the compressed domain and not the spatial domain. Information is selectively inserted for the video insertion information for the determined one or more macroblocks in the compressed bitstream. For example, encoded macroblocks for the video insertion information may replace the determined one or more macroblocks. Also, the one or more macroblocks may be decoded and information for the video insertion information is added to the decoded one or more macroblocks, and then the one or more macroblocks are re-encoded with the information.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: March 25, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Gary Fujen Cheng, Wen-Hsiung Chen, Michael Pereira
  • Patent number: 8670485
    Abstract: A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding the position of non-zero-valued coefficients in an ordered series of quantized transform coefficients of a block of image data, including encoding events using variable length coding using a plurality of variable length code mappings that each maps events to codewords, the position encoding including switching between the code mappings based on the context. The coding method further includes encoding amplitudes of the non-zero-valued coefficients using variable dimensional amplitude coding in the reverse order of the original ordering of the series.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: March 11, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Dihong Tian, Wen-hsiung Chen, Pi Sheng Chang
  • Publication number: 20140048997
    Abstract: A device for assembling a camera module includes a base and a buffer layer. The camera module includes a flexible printed circuit board (FPCB), a lens module positioned on the FPCB, and a stiffener adhering to the FPCB, opposite to the lens module. The lens module includes a first stepped surface facing away from the FPCB. The base includes a supporting surface for supporting the FPCB and defines a holding groove in the supporting surface for holding the lens module. The holding groove forms a second stepped surface for supporting the first stepped surface. The buffer layer is positioned on the second stepped surface and is elastically compressed when the camera module is subjected to a hot pressing process, which secures the stiffener adhering to the FPCB, to provide relief against, and extend the duration of, various pressures applied to the camera module.
    Type: Application
    Filed: October 18, 2012
    Publication date: February 20, 2014
    Inventors: YU-TSAN CHENG, WEN-HSIUNG CHEN, SHIN-WEN CHEN, WEN-CHANG CHEN, ZHE WANG, FU-LI LONG
  • Publication number: 20140049684
    Abstract: A circuit board assembly includes a flexible circuit board, a conductive adhesive, and a number of reinforcing plates. The flexible circuit board includes a first surface and a second surface. A number of board pads are mounted on the first surface. The conductive adhesive is coated on the first surface and entirely covers all of the board pads. The reinforcing plates are positioned on the second surface. Each of the reinforcing plates spatially corresponds to a respective one of the board pads. The reinforcing plates provide both physical grounding and stiffening of the circuit board assembly.
    Type: Application
    Filed: December 26, 2012
    Publication date: February 20, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: YU-TSAN CHENG, WEN-CHANG CHEN, SHIN-WEN CHEN, WEN-HSIUNG CHEN, SHU-SHENG PENG
  • Publication number: 20140036116
    Abstract: A flexible printed circuit board (FPCB) assembly includes a FPCB, a dielectric layer, a stiffener, and a conductive adhesive layer. The FPCB includes a surface and a conductive layer positioned on the surface of the FPCB. The conductive layer includes a circuit portion and a grounding portion connected to the circuit portion. The circuit portion is entirely covered by the dielectric layer and the grounding portion is exposed outside the dielectric layer. The conductive adhesive is positioned on the stiffener and includes a first adhering portion and a second adhering portion. A thickness of the second adhering portion is greater than the first adhering portion. A thickness difference between the second adhering portion and the first adhering portion is substantially equal to a thickness the dielectric layer. The first adhering portion is adhered to the dielectric layer and the second adhering portion is adhered to the grounding portion.
    Type: Application
    Filed: December 26, 2012
    Publication date: February 6, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHU-SHENG PENG, WEN-CHANG CHEN, LI-MIN LIU, YU-TSAN CHENG, WEN-HSIUNG CHEN, SHIN-WEN CHEN, YONG LI
  • Patent number: 8644384
    Abstract: A video coder includes a forward coder and a reconstruction module determining a motion compensated predicted picture from one or more previously decoded pictures in a multi-picture store. The reconstruction module includes a reference picture predictor that uses only previously decoded pictures to determine one or more predicted reference pictures. The predicted reference picture(s) are used for motion compensated prediction. The reference picture predictor may include optical flow analysis that uses a current decoded picture and that may use one or more previously decoded pictures together with affine motion analysis and image warping to determine at least a portion of at least one of the reference pictures.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: February 4, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Dihong Tian, J. William Mauchly, Joseph T. Friel, Wen-hsiung Chen
  • Publication number: 20140027158
    Abstract: A circuit board assembly includes a flexible circuit board, a dielectric layer and a reinforcing plate. The flexible circuit board includes a surface. A copper plating layer is positioned on the surface. The copper plating layer includes a circuit portion and a grounding portion. The circuit portion is entirely covered by the dielectric layer. The grounding portion is exposed outside the dielectric layer. The dielectric layer includes a bonding portion. The reinforcing plate includes a connection surface. The connection surface defines a cavity spatially corresponding to the bonding portion. The connection surface also includes an extending portion which is bulgy with respect to a bottom surface of the cavity. The extending portion spatially corresponds to the grounding portion. The bonding portion is received in the cavity with the extending portion in contact with and electrically connecting to the grounding portion by means of a conductive adhesive.
    Type: Application
    Filed: December 6, 2012
    Publication date: January 30, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (Shenzhen) CO., LTD.
    Inventors: SHIN-WEN CHEN, WEN-HSIUNG CHEN, YU-TSAN CHENG, WEN-CHANG CHEN, SHU-SHENG PENG
  • Publication number: 20140020934
    Abstract: A circuit board assembly includes a flexible circuit board and a reinforcing plate. The flexible circuit board includes a surface. A conductive layer is positioned on the surface. The conductive layer includes a circuit portion entirely covered by a dielectric layer and a grounding portion exposed outside the dielectric layer. The reinforcing plate is mounted on the dielectric layer. The reinforcing plate includes a connection surface connected to the dielectric layer and a supporting surface facing away from the connection surface. Projections extend from the connection surface. The location of all of the projections correspond to the location of the grounding portion, and all of the projections are in electrical contact with the grounding portion by means of a conductive adhesive.
    Type: Application
    Filed: December 6, 2012
    Publication date: January 23, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHIN-WEN CHEN, SHU-SHENG PENG, WEN-CHANG CHEN, WEN-HSIUNG CHEN, LI-MIN LIU, YU-TSAN CHENG, YONG LI
  • Publication number: 20130338983
    Abstract: A computer-implemented method, system, and computer program product are disclosed for updating simulation models of a subterranean reservoir. An ensemble of reservoir models representing a subterranean reservoir having non-Gaussian characteristics is provided and the ensemble of reservoir models is updated using a subspace ensemble Kalman filter. Kemal principle component analysis parameterization or K-L expansion parameterization can be used to update the ensemble of reservoir models.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 19, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Pallav Sarma, Wen Hsiung Chen
  • Patent number: 8576915
    Abstract: Particular embodiments include a method, an apparatus, and logic embodied in tangible computer-readable medium that when executed carries out a method of encoding an ordered sequence of quantized transform coefficients of a block of image data. One embodiment is a context adaptive variable length coding method that includes position coding the positions of zero-valued and non-zero valued coefficients by either a mixed method that encodes either the run length of zeroes preceding a non-zero coefficient or the run length of nonzero-valued coefficients preceding a zero-valued coefficients. Another includes position coding that uses a variable length code for two parameters respectively indicating the number of zero-valued coefficient positions and nonzero-valued coefficient positions still to be coded.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: November 5, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Dihong Tian, Wen-hsiung Chen, Pi Sheng Chang
  • Patent number: 8520965
    Abstract: A coding method for an ordered series of quantized transform coefficients of a block of image data, including a context adaptive position coding process to encode the position of clusters of non-zero-valued coefficients, e.g., a multidimensional position coder that uses one of a plurality of code mappings selected according to at least one criterion including at least one context-based criterion, and an amplitude encoding process to encode any amplitudes remaining to be coded, the amplitude coding using one or a plurality of amplitude code mappings selected according to at least one criterion, including a context-based criterion. A context-based selection criterion means a criterion that during encoding is known or derivable from one or more previously encoded items of information. Also a coding apparatus, a decoding apparatus, a computer readable medium configured with instructions that when executed implement a coding method, and another medium for a decoding method.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: August 27, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Junlin Li, Ghassan AlRegib, Dihong Tian, Wen-hsiung Chen, Pi Sheng Chang
  • Patent number: 8494295
    Abstract: Disclosed are apparatuses, computer readable storage media with instructions that carry out methods, and methods of (a) coding quantized transform coefficients as occur in image compression to form codewords, and (b) decoding a bitstream comprising the codewords. The coding combines a position identifying method to identify the relative position of clusters of consecutive non-zero-valued quantized transform coefficients, an amplitude event identifying method to identify amplitude events in the clusters of non-zero-valued quantized transform coefficients, and a coding method to code the position events, amplitude events, and signs of the amplitudes in the clusters. The coding method is particularly applicable to an ordered series of quantized transform coefficients where clusters are likely-to-occur.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 23, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Wen-hsiung Chen, Fang Wu, John A. Toebes, Dov Rosenfeld, Gregory D. Pelton
  • Patent number: 8483283
    Abstract: An apparatus, a method, and a computer-readable medium having instructions encoded thereon that when executed cause a method to be carried out. The method includes dividing at least a portion of a picture of a video stream into parts of blocks, and processing the parts in parallel by a plurality of interconnected processors. The processing of a respective part by its respective processor includes edge detection and color segmentation to determine block-level edge features including block-level color-segmented edge features. Each processor also performs coding functions on its respective part of the picture. The method also includes block-level processing using the block-level edge features to determine which blocks in the picture are likely to be that of a face, the block-level processing being at the granularity of at least a block.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: July 9, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Dihong Tian, Joseph T. Friel, J. William Mauchly, Wen-hsiung Chen
  • Patent number: 8363721
    Abstract: A video coder includes a forward coder and a reconstruction module determining a motion compensated predicted picture from one or more previously decoded pictures in a multi-picture store. The reconstruction module includes a reference picture predictor that uses only previously decoded pictures to determine one or more predicted reference pictures. The predicted reference picture(s) are used for motion compensated prediction. The reference picture predictor may include optical flow analysis that uses a current decoded picture and that may use one or more previously decoded pictures together with affine motion analysis and image warping to determine at least a portion of at least one of the reference pictures.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: January 29, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Dihong Tian, J. William Mauchly, Joseph T. Friel, Wen-hsiung Chen
  • Patent number: 8355041
    Abstract: Systems and methods for image processing, comprising receiving a video frame, coding a first portion of the video frame at a different quality than a second portion of the video frame, based on an optical property, and displaying the video frame.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: January 15, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Wen-Hsiung Chen, Patrik Buckingham, Chandrodaya Prasad, Prasad Miriyala
  • Publication number: 20130010860
    Abstract: A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding the position of non-zero-valued coefficients in an ordered series of quantized transform coefficients of a block of image data, including encoding events using variable length coding using a plurality of variable length code mappings that each maps events to codewords, the position encoding including switching between the code mappings based on the context. The coding method further includes encoding amplitudes of the non-zero-valued coefficients using variable dimensional amplitude coding in the reverse order of the original ordering of the series.
    Type: Application
    Filed: September 4, 2012
    Publication date: January 10, 2013
    Inventors: Dihong Tian, Wen-hsiung Chen, Pi Sheng Chang
  • Patent number: 8340448
    Abstract: A coding method, apparatus, and storage media with instructions to carry out a method. The method operates on an ordered series of transform coefficients of a block of image data, and for a fixed quantization method, and includes quantizing and encoding the ordered series to form a coded bitstream. The quantizing and encoding uses one or more variable length code (VLC) mappings. The quantizing includes quantizing to have amplitude-1 at least one coefficient that would be quantized by the fixed quantization method to have zero amplitude, quantizing to have zero amplitude at least one coefficient that would be quantized by the fixed quantization method to have amplitude-1, and using the fixed quantization method to quantize any coefficient that is quantized by the fixed quantization method not to have zero amplitude, amplitude-1, or amplitude-2.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: December 25, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Junlin Li, Dihong Tian, Wen-hsiung Chen, Yian Xu
  • Publication number: 20120287302
    Abstract: A method is provided in one example embodiment and includes receiving a camera dynamic parameter; determining a reference transform parameter based on the camera dynamic parameter; applying the reference transform parameter to generate a video image; and encoding the reference transform parameter in a bitstream for transmission with the video image. In other more specific instances, the method may include decoding a particular video image; decoding a particular reference transform parameter; and applying a particular reference transform parameter to the particular video image. The entropy-decoded data can undergo inverse quantization and transformation such that reference transformed data is combined with the entropy-decoded data. Additionally, the entropy-decoded data can be subjected to filtering before decoded video images are rendered on a display.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 15, 2012
    Inventors: Dihong Tian, Wen-Hsiung Chen