Patents by Inventor Huai-Rong Shao

Huai-Rong Shao 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: 9842564
    Abstract: A method and system is provided for wireless transmission of audio/video information via different wired AV interface formats. A method and system for wireless communication of audio/video AV information between AV devices includes receiving audio/video (AV) information from a first AV module via a first wired AV interface in a first AV device, applying interface dependent processing to the AV information, and transmitting the processed AV information from a wireless transceiver over a wireless channel to a wireless receiver of a second AV device. The second AV device includes a second wired AV interface and the first AV interface is of a different type than the second interface device.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 12, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Ju-Lan Hsu, Chiu Ngo
  • Patent number: 9661189
    Abstract: A method of transmitting data, including obtaining luma element values and chroma element values of respective pixels included in a pixel block having a predetermined size; obtaining a plurality of partitions in which the luma element values and the chroma element values are based on a spatial position of the pixels in the pixel block; and selectively transmitting the plurality of partitions according to a data rate of the image data.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-bum Park, Hyuk-choon Kwon, Huai-Rong Shao
  • Patent number: 9392565
    Abstract: Time synchronization in a wireless communication system comprises transmitting a synchronization frame from a transmitter to a receiver over a wireless communication medium. The synchronization frame includes a timestamp indicating the transmitter local time when a symbol at a predefined position of the synchronization frame is placed on the wireless communication medium for transmission. The synchronization frame is received at the receiver which determines a receiving time comprising the receiver local time when said symbol of the synchronization frame was received at the physical layer of the receiver. Time synchronizing is performed by determining a difference between said timestamp and said receiving time, and adjusting the receiver local time based on said difference to time synchronize the receiver with the transmitter.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: July 12, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Ju-Lan Hsu, Chiu Ngo
  • Patent number: 9369759
    Abstract: Uncompressed video information is transmitted over a wireless communication medium from a wireless sender device to a wireless receiver device. Progressive transmission data rate adaptation is performed on original uncompressed video pixel information. The progressive transmission data rate adaptation is performed on selected pixel information to obtain a rate-reduced pixel information. The rate-reduced pixel information requires a lower transmission data rate than the original frame. The rate-reduced pixel information is transmitted over the wireless communication medium to the wireless receiver device. At the receiver, a reverse operation is performed to recover the original uncompressed video pixel information.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: June 14, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Ju-Lan Hsu, Chiu Ngo
  • Patent number: 9264992
    Abstract: A method and system for wireless communication over a wireless communication medium is provided. A schedule is generated which indicates when a wireless communication station may enter a power saving state in an announcement time (AT) period, based on an idle timeout interval in the AT period. The AT period comprises a period after a beacon transmission in a beacon interval.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-Lan Hsu, Huai-Rong Shao, Chiu Ngo
  • Patent number: 9143791
    Abstract: A method and apparatus for processing a video frame is provided. The method includes dividing the video frame into pixel blocks each including a reference pixel; calculating difference values between the reference pixel and pixels neighboring the reference pixel; converting the calculated difference values into values that belong to a bit depth range; and performing entropy coding by using the converted difference values as symbols.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: September 22, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-bum Park, Jae-won Yoon, Hae-young Jun, Shin-wook Kang, Dai-woong Choi, Huai-rong Shao
  • Patent number: 9077992
    Abstract: A method and apparatus for processing a video frame is provided. The method includes dividing the video frame into pixel blocks each including a reference pixel; calculating difference values between the reference pixel and pixels neighboring the reference pixel; converting the calculated difference values into values that belong to a bit depth range; and performing entropy coding by using the converted difference values as symbols.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-bum Park, Jae-won Yoon, Hae-young Jun, Shin-wook Kang, Dai-woong Choi, Huai-rong Shao
  • Patent number: 9026044
    Abstract: Responder-aware relay station selection in a wireless communication network is provided. One implementation includes evaluating operational parameters of multiple candidate wireless relay stations, and selecting a wireless relay station among the multiple candidate wireless relay stations based on the evaluation. A wireless communication is transmitted to the selected wireless relay station over a wireless communication medium.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-Lan Hsu, Huai-Rong Shao, Chiu Ngo
  • Publication number: 20150055537
    Abstract: An embodiment of wireless communication comprises passing data from a higher layer to a communication layer via multiple data paths for parallel data communication in a wireless device, wherein passing the data comprises controlling passing of said data on the multiple data paths based on communication requirements using path operators. The wireless communication further comprises processing data as packet-less units of data on the multiple data paths, and transmitting the data from the multiple data paths on multiple wireless communication paths from the wireless device.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 26, 2015
    Applicant: Sumsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Chiu Ngo
  • Publication number: 20150055526
    Abstract: An embodiment of wireless communication comprises establishing multiple data paths for parallel data communication in a wireless device, processing data as packet-less units of data on the multiple data paths, and transmitting the data from the multiple data paths on multiple wireless communication paths from the wireless device.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 26, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huai-Rong Shao, Chiu Ngo
  • Patent number: 8963996
    Abstract: Communication of stereoscopic three dimensional (3D) video information. One embodiment comprises wireless communication of stereoscopic 3D video information including an uncompressed first eye view video frame and a corresponding stereoscopic uncompressed second eye view video frame, from a transmitting wireless station to a receiving wireless station. In one embodiment, a set of pixels in an uncompressed first eye view video frame is transmitted over a wireless communication medium. Pixel information in a set of pixels in an uncompressed second eye view video frame corresponding to the first eye view set of pixels is reduced to generate a reduced set of pixels. The reduced set of pixels is transmitted over the wireless communication medium. At the receiving wireless station, an uncompressed second eye view video set of pixels is reconstructed based on said first eye view set of pixels and said reduced set of pixels.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: February 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chiu Ngo, Ju-Lan Hsu, Huai-Rong Shao
  • Patent number: 8953514
    Abstract: A system and method for efficiently communicating messages over a low-rate channel between multiple devices in a system for wireless communication of uncompressed video is disclosed. The method includes various control bits in a beacon control field of a beacon frame to improve the efficiency of the beacon processing, thereby reducing beacon processing time and size of the beacon frame itself. The transmitting device can use one or more of the various control bits to indicate whether there are changes in various MAC payload information fields. The receiving station can use one or more of the control bits to eliminate the need to parse one or more MAC payload information fields whose values have not changed from the previous beacon frame.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Harkirat Singh, Xiangping Qin, Chiu Ngo
  • Patent number: 8923144
    Abstract: A method and system for device discovery in a wireless network is provided. The device discovery involves directionally transmitting a data unit from a transmitting station over a channel in different directions to emulate omni-directional transmission, receiving the data unit transmissions from different directions at a receiving station, determining the quality of the transmissions received from the different directions, and detecting location information for the transmitting station relative to the receiving station based on the highest quality transmission among the transmissions received from the different directions.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: December 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Harkirat Singh, Chiu Ngo
  • Patent number: 8917675
    Abstract: A system and method for multiple contention access periods is disclosed. In one embodiment, the system for wireless communication comprises a coordinator configured to schedule wireless transmissions among a plurality of wireless devices during a plurality of superframes, at least one of the superframes comprising a period during which the coordinator is configured to receive one or more data packets from the wireless devices via at least one random access scheme, the period being partitioned into a plurality of sub-periods which do not overlap with one another, wherein the coordinator is configured to receive at least a first data packet having a first value for a parameter during a first sub-period and a second data packet having a second value for the parameter during a second sub-period, and wherein the first and second values for the parameter are different from each other.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xiangping Qin, Harkirat Singh, Huai-Rong Shao, Chiu Ngo
  • Patent number: 8891451
    Abstract: Wireless communication channel allocation comprises scanning wireless channels for available wireless channels, wherein each wireless channel has an associated bandwidth, and selecting a channel among the available wireless channels for allocation in wireless communication. Selecting a channel comprises selecting a channel among the available wireless channels such that a maximum number of channels with wider bandwidth than the selected channel remain available after the selection.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Chiu Ngo
  • Patent number: 8891610
    Abstract: A method and system for transmission of video information is provided. A transmitting wireless station performs chroma partitioning of pixels in a video frame into different partitions. The chroma partitioning includes separating luminance (Y) information from chrominance information (CB and CR) of each pixel in a set of spatially correlated pixels. The luminance (Y) information are placed into different partitions. The different partitions into different packets and transmitted over a wireless communication medium to a receiving wireless station. The video information is selectively adapted to a lower data transmission rate with reduced quality degradation by dropping less important partitions.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chiu Ngo, Huai-Rong Shao, Ju-Lan Hsu
  • Patent number: 8885489
    Abstract: Embodiments of the invention provide connection maintenance for communication of audio/video (AV) information. One implementation comprises transmitting audio/video (AV) information as multiple spatial streams from a wireless transmitter to at least one wireless receiver over a wireless link, wherein each spatial stream is targeted to one of multiple AV devices connected to the wireless receiver. Receiving the AV information at the wireless receiver and providing the AV information from each spatial stream to a target AV device connected to the wireless receiver via a communication link, wherein each communication link corresponds to a spatial stream. Detecting connection status information for the wireless link and the communication links. Transmitting the connection status information from the wireless receiver to the wireless transmitter.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: November 11, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Ju-Lan Hsu, Chiu Ngo
  • Publication number: 20140293135
    Abstract: A method and system for providing power saving for wired connected devices. The method includes determining a power saving mode by one or more of a first communication device and a second communication device based on one or more of a video content state and one or more un-allocated communication paths. A power saving operation is performed while using a wired link between the first communication device and the second communication device based on the determined power saving mode.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 2, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huai-Rong Shao, Kyeong-Jae Lee, Chiu Ngo, Jonghwa Kim, Ilju Na
  • Patent number: 8842739
    Abstract: A method and system for communicating video information over wireless channels is provided. Communicating video information involves receiving a frame of video pixel information, partitioning spatially correlated pixels into different partitions and allocating pixel information from the pixel partitions across one or more of said multiple channels based on channel conditions. The allocated pixel information is transmitted on the one or more multiple channels.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: September 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Chiu Ngo
  • Patent number: 8837435
    Abstract: A method and a system for medium access control among devices in a communication system is provided. One implementation involves selecting a contention-based control period for access to a shared communication medium; dividing the contention-based control period into multiple time slots, wherein each slot has a duration that is a function of one or more of the duration of transmission of a request to send (RTS) frame, the duration of transmission of a clear to send (CTS) frame, and an inter frame space (IFS) duration therebetween; and transmitting an RTS frame in a selected slot for allocating a reservation period for accessing the medium for data transmission.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: September 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harkirat Singh, Huai-Rong Shao, Chiu Ngo