Patents by Inventor Chia-Yuan Teng

Chia-Yuan Teng 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: 10082860
    Abstract: This disclosure describes techniques for reducing power consumption of a display device. According to these techniques, a display device is configured to determine whether an image to be displayed by the display device has become static. In response to identifying such a static image, the display device may operate in a static image mode. According to the static image mode, the display device may read a current frame of image data, modify the current frame of image data to generate a modified frame of image data with a reduced size, and store the modified image data in memory. The display device may read the modified image data from memory to present the static image, which may reduce power consumption of the display device.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 25, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Fariborz Pourbigharaz, Carl Kazumi Mizuyabu, Khosro M. Rabii, John Chi Kit Wong, Gary Arthur Ciambella, Chia-Yuan Teng, Tauseef Kazi
  • Publication number: 20180048817
    Abstract: Methods and apparatus improve static region detection in an imaging pipeline. An imaging pipeline may perform detection of static regions of an image at multiple stages of the pipeline. For example, as static regions may be eliminated from further processing by the imaging pipeline, static region detection performed at an early stage of the pipeline may provide for maximized power savings. As images early in the pipeline may contain artifacts inhibiting detection of some static regions, additional static region detection may be performed after further image processing. For example, static region detection may be performed for a second time after some filtering is applied to images in the pipeline. Regions previously characterized as dynamic may be characterized as static later in the pipeline due to a reduction of noise for example provided by the filters, and differences between the static region detection at different positions within the imaging pipeline.
    Type: Application
    Filed: August 15, 2016
    Publication date: February 15, 2018
    Inventors: Suolong Dong, Scott Cheng, Jeffrey Chu, Neil Christanto, Joseph Cheung, Michael Lee Coulter, Chia-Yuan Teng, Haoping Xu
  • Patent number: 9606769
    Abstract: Systems and methods for adaptive compression mode selection for memory buffers such as those used in or with a portable computing device (“PCD”) are presented. During operation of the PCD a first compression mode is selected for a buffer and the buffer is formatted to the first compression mode. Any access to the buffer by a component of the PCD, core of the PCD or software application running on the PCD is monitored. Based on the amount and/or type of access to the buffer, a second compression mode for the buffer is selected. The buffer is formatted to the second compression mode, providing a cost effective ability to adaptively format buffers based on the component(s), cores(s), and/or software application(s) accessing the buffers, and allowing for improving or optimizing bandwidth, memory footprint, resource conflict, power consumption, latency, and/or performance of component(s), core(s), or software application(s) accessing buffers as desired.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 28, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Moinul Khan, Chia-Yuan Teng, Simo Petteri Kangaslampi
  • Patent number: 9524052
    Abstract: A method, an apparatus, and a computer program product for processing touchscreen information are provided. The method may include receiving touchscreen data that includes node values representative of signals generated by a touchscreen panel, generating a first data frame including difference values, and transmitting the first data frame over a control data bus. Each of the difference values may be calculated as a difference between one of the node values and a different node-related value wherein the first data frame has a predefined size. The first data frame may be configured to permit a receiver of the first data frame to reconstruct the touchscreen data without information loss.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 20, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Mohamed Imtiaz Ahmed, Chia-Yuan Teng, Jun Han, Raghukul Tilak, Suhail Jalil, Junchen Du, Fariborz Pourbigharaz, Bo Zhou
  • Patent number: 9460527
    Abstract: Certain aspects relate to systems and techniques for compressing image data using pattern mode compression schemes. A pattern mode compression scheme can reduce the amount of data stored in a frame buffer to reduce power costs of an image display system. In some implementations, pattern mode compression can be suitable for compression of pixel blocks having a limited color palette with one or more pixels of a different foreground color, and a slope-enabled pattern compression can be suitable for compression of pixel blocks having a gradient. Input pixel values can be compared against a dynamically-populated, fixed size pattern entry database to determine whether pattern mode compression or slope-enabled pattern mode compression should be used to compress the image block.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Chia-Yuan Teng, Natan Haim Jacobson
  • Patent number: 9426414
    Abstract: This disclosure describes selection of reference video units to be used for interpolation or extrapolation of a video unit, such as a video frame. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. Display of an interpolated or extrapolated frame may be selectively enabled based on a quality analysis. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: August 23, 2016
    Assignee: Qualcomm Incorporated
    Inventors: Gokce Dane, Khaled Helmi El-Maleh, Min Dai, Chia-Yuan Teng
  • Patent number: 9357233
    Abstract: A video decoder performs a sequential error handling process to detect and conceal errors within a corrupted data segment of video data units. The decoder sequentially decodes a current data unit. Upon detecting an error, the decoder sets an error flag and resynchronizes decoding at the start of the next unit. If the error flag is set, the video decoder identifies the end of the corrupted data segment based on the start of the later unit. The decoder conceals data between the start of the current unit and the end of the corrupted data segment. If the error flag is not set, the decoder may decode the remainder of the current unit and proceed to decode the next available unit without performing error handling and concealment for the current unit. The decoder also may address reference unit mismatches caused by lost video data units.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: May 31, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Yen-Chi Lee, Min Dai, Chia-Yuan Teng
  • Patent number: 9350899
    Abstract: Described are a system and method to determine the initial luma and chroma phase such that the resulting image after chroma upsampling and scaling has zero phase difference between the luma and chroma components. Particularly, the described method may include receiving a subsampled input image having luma and chroma values. The method may then perform a phase computation of the input image to determine scaling parameters such that phase differences between all color components of an output image are zero. The method may then include performing a combined upscaling and upsampling process on the input image using the scaling parameters to generate an upscaled image with no phase difference from the subsampled image.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 24, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Min Li, Chia-Yuan Teng, Gregory Allan VanSickle
  • Patent number: 9185424
    Abstract: Techniques described in this disclosure may implement a bit budget-based scheme that indicates the available bit budget for a current image data block to achieve the target compression. The techniques may continuously update the bit budget after the compression of the current image data block to determine the bit budget for the next image data block.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: November 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventor: Chia-Yuan Teng
  • Patent number: 9177393
    Abstract: Certain aspects relate to systems and techniques for compressing image data using mixed mode compression schemes. A mixed mode compression scheme can reduce the amount of data stored in a frame buffer to reduce power costs of an image display system. In some implementations, mixed mode compression can be suitable for compression of pixel blocks having one or two color channels exhibiting a relatively low variation in pixel intensity with the remaining channel or channels exhibiting a relatively high variation. The pixel values in each color channel of an RGB or YCoCg image can be analyzed to determine how many channels are a smooth component and how many channels are a variant component, and mixed mode compression can be selected and implemented based on the color channel analysis to adaptively and individually compress the color channels.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: November 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Chia-Yuan Teng, Natan Haim Jacobson
  • Publication number: 20150309650
    Abstract: A method, an apparatus, and a computer program product for processing touchscreen information are provided. The method may include receiving touchscreen data that includes node values representative of signals generated by a touchscreen panel, generating a first data frame including difference values, and transmitting the first data frame over a control data bus. Each of the difference values may be calculated as a difference between one of the node values and a different node-related value wherein the first data frame has a predefined size. The first data frame may be configured to permit a receiver of the first data frame to reconstruct the touchscreen data without information loss.
    Type: Application
    Filed: January 29, 2015
    Publication date: October 29, 2015
    Inventors: Mohamed Imtiaz Ahmed, Chia-Yuan Teng, Jun Han, Raghukul Tilak, Suhail Jalil, Junchen Du, Fariborz Pourbigharaz, Bo Zhou
  • Patent number: 9165510
    Abstract: The techniques of the disclosure are directed to reducing power consumption in a device through adaptive backlight level (ABL) scaling. The techniques may utilize a temporal approach in implementing the ABL scaling to adjust the backlight level of a display for a current video frame in a sequence of video frames presented on the display. The techniques may include receiving an initial backlight level adjustment for the current video frame and determining whether to adjust the backlight level adjustment for the current video frame based on a historical trend. The techniques may also determine the historical trend of backlight level adjustments between the current video frame and one or more preceding video frames in the sequence.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: October 20, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Min Dai, Ali Iranli, Chia-Yuan Teng
  • Publication number: 20150286467
    Abstract: Systems and methods for adaptive compression mode selection for memory buffers such as those used in or with a portable computing device (“PCD”) are presented. During operation of the PCD a first compression mode is selected for a buffer and the buffer is formatted to the first compression mode. Any access to the buffer by a component of the PCD, core of the PCD or software application running on the PCD is monitored. Based on the amount and/or type of access to the buffer, a second compression mode for the buffer is selected. The buffer is formatted to the second compression mode, providing a cost effective ability to adaptively format buffers based on the component(s), cores(s), and/or software application(s) accessing the buffers, and allowing for improving or optimizing bandwidth, memory footprint, resource conflict, power consumption, latency, and/or performance of component(s), core(s), or software application(s) accessing buffers as desired.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 8, 2015
    Inventors: MOINUL KHAN, CHIA-YUAN TENG, SIMO PETTERI KANGASLAMPI
  • Patent number: 9113169
    Abstract: This disclosure describes techniques for region-of-interest (ROI) encoding. In accordance with the techniques described herein, an encoding device may determine a temporal spatial dependency value for a candidate reference video block for inter-coding a current block in a video frame. The encoding device may compare the temporal spatial dependency value to a threshold value and select a coding mode for the current block based on the comparison. A decoding device may receive data defining a ROI as well as the temporal spatial dependency value and decode a video block in the ROI based at least in part on the temporal spatial dependency value. In this manner, the techniques of this disclosure may allow a video content viewer the ability to choose a ROI to watch.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: August 18, 2015
    Assignee: Qualcomm Incorporated
    Inventors: Ming-Chang Tsai, Chia-Yuan Teng, Yan Ye
  • Patent number: 8989275
    Abstract: A method for video processing may include receiving video data units, and compressing the video data units to generate compressed video data units that have a variable size. The method may also include storing the compressed video data units contiguously in a memory in memory segments that have a fixed size, where the size of at least one of the compressed video data units is indivisible by the fixed size of the memory segments, and where a portion of the indivisible compressed video data unit is stored with a portion of another compressed video data unit in one of the memory segments. The method may also include determining data storage information associated with the compressed video data units, and storing the data storage information in the memory. A system may have a video processing architecture designed to support the method.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: March 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Chia-Yuan Teng, Dan M. Chuang, Gokce Dane, Raghavendra C. Nagaraj, Vladan Andrijanic, Yiu-Wing Leung
  • Patent number: 8953685
    Abstract: A decoder may apply a resource-focused interpolation mode to enable or disable interpolation or extrapolation of video units, such as frames, based on power and quality considerations. In one mode, interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements. This disclosure also describes selection of reference video frames to be used for interpolation or extrapolation of a video frame. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. Display of an interpolated or extrapolated frame may be selectively enabled based on a quality analysis of the frame.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: February 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Gokce Dane, Min Dai, Khaled Helmi El-Maleh, Chia-Yuan Teng
  • Publication number: 20140219573
    Abstract: Certain aspects relate to systems and techniques for compressing image data using pattern mode compression schemes. A pattern mode compression scheme can reduce the amount of data stored in a frame buffer to reduce power costs of an image display system. In some implementations, pattern mode compression can be suitable for compression of pixel blocks having a limited color palette with one or more pixels of a different foreground color, and a slope-enabled pattern compression can be suitable for compression of pixel blocks having a gradient. Input pixel values can be compared against a dynamically-populated, fixed size pattern entry database to determine whether pattern mode compression or slope-enabled pattern mode compression should be used to compress the image block.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Chia-Yuan Teng, Natan Haim Jacobson
  • Publication number: 20140219558
    Abstract: Certain aspects relate to systems and techniques for compressing image data using mixed mode compression schemes. A mixed mode compression scheme can reduce the amount of data stored in a frame buffer to reduce power costs of an image display system. In some implementations, mixed mode compression can be suitable for compression of pixel blocks having one or two color channels exhibiting a relatively low variation in pixel intensity with the remaining channel or channels exhibiting a relatively high variation. The pixel values in each color channel of an RGB or YCoCg image can be analyzed to determine how many channels are a smooth component and how many channels are a variant component, and mixed mode compression can be selected and implemented based on the color channel analysis to adaptively and individually compress the color channels.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Chia-Yuan Teng, Natan Haim Jacobson
  • Patent number: 8724707
    Abstract: This disclosure describes techniques for region-of-interest (ROI) encoding. In accordance with the techniques described herein, an encoding device may determine a temporal spatial dependency value for a candidate reference video block for inter-coding a current block in a video frame. The encoding device may compare the temporal spatial dependency value to a threshold value and select a coding mode for the current block based on the comparison. A decoding device may receive data defining a ROI as well as the temporal spatial dependency value and decode a video block in the ROI based at least in part on the temporal spatial dependency value. In this manner, the techniques of this disclosure may allow a video content viewer the ability to choose a ROI to watch.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: May 13, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Ming-Chang Tsai, Chia-Yuan Teng, Yan Ye
  • Patent number: 8681867
    Abstract: This disclosure describes selective deblock filtering techniques that are particularly useful with coding standards that do not specify in-loop deblock filtering for standard compliance. In accordance with this disclosure, deblock filtering may be selectively performed with respect to block boundaries of a given video block being coded, a motion compensation process can be performed using a filtered version of the prediction video frame used to code the given video block, or both. This disclosure also provides selection rules that can be applied to determine what type of deblocking techniques to apply in various scenarios. The selection rules may improve the video coding and may also ensure that mismatch between video blocks at an encoder and a decoder is not introduced by the deblock filtering.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: March 25, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Chia-Yuan Teng, Sharath Manjunath, Yan Ye