Patents by Inventor Guy Côté

Guy Côté 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: 7893993
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: February 22, 2011
    Assignee: LSI Corporation
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Publication number: 20110032992
    Abstract: A method for transcoding from an H.264 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the mode indicators.
    Type: Application
    Filed: October 22, 2010
    Publication date: February 10, 2011
    Inventors: Guy Cote, Lowell L. Winger
  • Patent number: 7881384
    Abstract: A method for transcoding from an H.264 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the mode indicators.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: February 1, 2011
    Assignee: LSI Corporation
    Inventors: Guy Cote, Lowell L. Winger
  • Patent number: 7859574
    Abstract: An apparatus including a first circuit and a second circuit. The first circuit may be configured to perform image signal processing using encoding related information. The second circuit may be configured to encode image data using image signal processing related information, wherein said first circuit is further configured to pass said image signal processing related information to said second circuit and said second circuit is further configured to pass said encoding related information to said first circuit.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: December 28, 2010
    Assignee: Maxim Integrated Products, Inc.
    Inventors: José R. Alvarez, Guy Cote
  • Publication number: 20100309975
    Abstract: A method and system are provided to encode a video sequence into a compressed bitstream. An encoder receives a video sequence from an image-capture device, together with metadata associated with the video sequence, and codes the video sequence into a first compressed bitstream using the metadata to select or revise a coding parameter associated with a coding operation. Optionally, the video sequence may be conditioned for coding by a preprocessor, which also may use the metadata to select or revise a preprocessing parameter associated with a preprocessing operation. The encoder may itself generate metadata associated with the first compressed bitstream, which may be used together with any metadata received by the encoder, to transcode the first compressed bitstream into a second compressed bitstream.
    Type: Application
    Filed: July 31, 2009
    Publication date: December 9, 2010
    Applicant: APPLE INC.
    Inventors: Xiaosong ZHOU, Davide CONCION, Guy COTE, Cecile FORET, Haitao (Harry) GUO, Ionut HRISTODORESCU, James Oliver NORMILE, Xiaojin SHI, Hsi-Jung WU
  • Publication number: 20100309987
    Abstract: A method and system are provided to encode a video sequence into a compressed bitstream. An encoder receives a video sequence from an image-capture device, together with metadata associated with the video sequence, and codes the video sequence into a first compressed bitstream using the metadata to select or revise a coding parameter associated with a coding operation. Optionally, the video sequence may be conditioned for coding by a preprocessor, which also may use the metadata to select or revise a preprocessing parameter associated with a preprocessing operation. The encoder may itself generate metadata associated with the first compressed bitstream, which may be used together with any metadata received by the encoder, to transcode the first compressed bitstream into a second compressed bitstream.
    Type: Application
    Filed: July 31, 2009
    Publication date: December 9, 2010
    Applicant: APPLE INC.
    Inventors: Davide CONCION, Xiaosong ZHOU, Guy COTE, Cecile FORET, Haitao (Harry) GUO, Ionut HRISTODORESCU, James Oliver NORMILE, Xiaojin SHI, Hsi-Jung WU
  • Patent number: 7804899
    Abstract: The present invention discloses how a transcoder may be used to reduce the bit rate of an MPEG-2 stream by transmitting only the visible area of the movie specified by pan-scan directives. Because the pan-scan conversion is performed prior to transmission, not immediately before display, the non-viewed portion of video does not need to be transmitted.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: September 28, 2010
    Assignee: Cisco Systems Canada Co.
    Inventors: David Dolson, Lowell Winger, Michael Gallant, Guy Cote
  • Patent number: 7733380
    Abstract: A camera including a first circuit and a second circuit. The first circuit may be configured to perform image signal processing and control one or more functions of the camera using image signal processing related information and encoding related information. The second circuit may be configured to encode image data using the image signal processing related information and camera settings information. The first circuit may be further configured to pass the image signal processing related information and the camera settings information to the second circuit. The second circuit may be further configured to pass the encoding related information to the first circuit.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: June 8, 2010
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Guy Cote, José R. Alvarez
  • Patent number: 7684626
    Abstract: A method for image decoding is disclosed. The method generally includes the steps of (A) receiving from a medium (1) an encoded signal and (2) transform data comprising at least one of (i) encoding statistics embedded in the encoded signal, (ii) encoding information and (iii) pre-processing information, wherein (a) the encoding statistics are created by an encoder in encoding an intermediate input signal to create the encoded signal, (b) the encoding information is producible by the encoder in the encoding and (c) the pre-processing information is producible by a pre-processor in converting an image input signal into the intermediate input signal, (B) generating an intermediate output signal by decoding the encoded signal and (C) generating an image output signal by processing the intermediate output signal in response to the transform data.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 23, 2010
    Assignee: Maxim Integrated Products
    Inventors: Guy Cote, José R. Alvarez
  • Publication number: 20100061449
    Abstract: A video encoder including an encoder circuit, a quantizer circuit and a control circuit. The encoder circuit may be configured to generate a plurality of coefficient values and motion vectors in response to a video stream, a first control signal, a second control signal, and a number of quantized values. The control circuit may be configured to (i) generate the first control signal, the second control signal, and a quantizer index signal and (ii) set two or more quantization dead zones and two or more offsets to different values, where the quantization dead zones and the offsets are independently programmable. The quantizer circuit may be configured to generate the number of quantized values in response to the coefficient values, the quantizer index signal, the two or more quantization dead zones and the two or more offsets. A first coefficient value may be quantized using a first quantization dead zone and a first offset.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 11, 2010
    Inventors: Guy Cote, Elliot N. Linzer, Lowell L. Winger
  • Patent number: 7659939
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) calculating a potential sample at a location interfaced with a first field of the picture by temporal filtering, (B) evaluating a protection condition in a current region around the location after inclusion of the potential sample and (C) calculating an interpolated sample at the location by vertical spatial filtering the first field in response to the protection condition indicating a significant increase in a vertical activity within the current region due to the potential sample.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: February 9, 2010
    Assignee: LSI Corporation
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Patent number: 7620103
    Abstract: A video encoder is disclosed that includes an encoder circuit, a quantizer circuit and a control circuit. The encoder circuit may be configured to generate a number of coefficient values in response to a video stream and a number of quantized values. The quantizer circuit may be configured to generate the number of quantized values in response to the coefficient values, two or more quantization dead zones and two or more offsets. The control circuit may be configured to set the two or more quantization dead zones and the two or more offsets to different values. The two or more quantization dead zones and the two or more offsets are independently programmable.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: November 17, 2009
    Assignee: LSI Corporation
    Inventors: Guy Cote, Elliot N. Linzer, Lowell L. Winger
  • Patent number: 7602849
    Abstract: An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a control signal in response to a measurement of inter-picture motion between a current picture and a first reference picture. The second circuit may be configured to select the first reference picture or a second reference picture as a better reference picture for motion estimation in response to the control signal.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: October 13, 2009
    Assignee: LSI Corporation
    Inventors: Simon Booth, Guy Cote
  • Publication number: 20080122975
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) calculating a potential sample at a location interfaced with a first field of the picture by temporal filtering, (B) evaluating a protection condition in a current region around the location after inclusion of the potential sample and (C) calculating an interpolated sample at the location by vertical spatial filtering the first field in response to the protection condition indicating a significant increase in a vertical activity within the current region due to the potential sample.
    Type: Application
    Filed: February 4, 2008
    Publication date: May 29, 2008
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Publication number: 20080117330
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.
    Type: Application
    Filed: January 23, 2008
    Publication date: May 22, 2008
    Inventors: Lowell Winger, Yunwei Jia, Aaron Wells, Elliot Linzer, Simon Booth, Guy Cote
  • Patent number: 7362804
    Abstract: An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a decoded video signal and syntax elements in response to an encoded bitstream. The second circuit may be configured to generate one or more overlay images in response to the syntax elements. The overlay images generally comprise graphical symbols representing the syntax elements of the encoded bitstream.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: April 22, 2008
    Assignee: LSI Logic Corporation
    Inventors: Pavel Novotny, Guy Cote, Lowell L. Winger, Simon Booth
  • Patent number: 7362376
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an edge in the picture proximate a location interlaced with a field of the picture, (B) generating a plurality of neighbor scores by searching for the edge along a plurality of neighbor angles proximate a particular angle of the primary angles corresponding to a particular score of the primary scores having a best value and (C) identifying a best score from a group of scores consisting of the particular score and the neighbor scores to generate an interpolated sample at the location.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: April 22, 2008
    Assignee: LSI Logic Corporation
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Patent number: 7345708
    Abstract: A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) determining a protection condition by performing a static check on the picture in a region around a location interlaced with a first field of the picture, (B) calculating an interpolated sample at the location by temporal averaging the first field with a second field in response to the protection condition indicating significant vertical activity and (C) calculating the interpolated sample at the location by spatial filtering the first field in response to the protection condition indicating insignificant vertical activity.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: March 18, 2008
    Assignee: LSI Logic Corporation
    Inventors: Lowell L. Winger, Yunwei Jia, Aaron G. Wells, Elliot N. Linzer, Simon Booth, Guy Cote
  • Patent number: 7327786
    Abstract: A method for improving rate distortion performance of a compression system through parallel coefficient cancellation in a transform comprising the steps of (A) determining a block sum of absolute values for each of a plurality of blocks in a macroblock and (B) setting one or more coefficient values of a block to zero in response to a block sum value of said block being less than a first predetermined threshold value.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: February 5, 2008
    Assignee: LSI Logic Corporation
    Inventors: Lowell L. Winger, Pavel Novotny, Guy Cote
  • Patent number: 7324595
    Abstract: A method for implementing non-reference frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if non-reference frames are used for block prediction and (ii) “on” if non-reference frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: January 29, 2008
    Assignee: LSI Logic Corporation
    Inventors: Guy Cote, Michael D. Gallant, Pavel Novotny, Lowell L. Winger