Patents by Inventor Chiu Ngo

Chiu Ngo 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: 8509159
    Abstract: A method and system for ad-hoc wireless communication using out-of-band control channels is provided. An out-of-band control channel is scanned to discover a wireless station. Channel occupation information is communicated with the discovered station. A communication channel is selected based on the occupation information, and may be used for ad-hoc mode information communication with the discovered station.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: August 13, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Harkirat Singh, Xiangping Qin, Chiu Ngo
  • Patent number: 8503968
    Abstract: A method and a system for wireless communication is provided which involves maintaining a data communication module in a power saving mode, detecting channel reservation for communication on a wireless data channel during one or more reserved time periods, and upon successful data channel reservation, transitioning the data communication module from the power saving mode to an active mode for data communication on the reserved data channel. Preferably, the data communication module is transitioned back to the power saving mode upon completion of data communication on the data channel.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: August 6, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harkirat Singh, Huai-Rong Shao, Xiangping Qin, Chiu Ngo
  • Patent number: 8478204
    Abstract: A system and method for reusing existing directional information to configure antennas in a wireless network is disclosed. The method includes retrieving existing directional information, the existing directional information having been established in a previous antenna training session with a receiver. The method further includes performing a signal-to-noise ratio (SNR) estimation procedure comprising: transmitting an SNR estimation probe message to the receiver via a directional antenna tuned with the existing directional information, and determining whether an estimated SNR value associated with the SNR estimation probe message is equal to or greater than a threshold SNR value. The method further includes transmitting a data message to the receiver via the directional antenna tuned with the existing directional information if it is determined that the estimated SNR value is equal to or greater than the threshold SNR value.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: July 2, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xiangping Qin, Pengfei Xia, Chiu Ngo
  • Patent number: 8432938
    Abstract: A method and system for transmitting video information from a sender to a receiver over a wireless channel, is provided. Video information bits are placed into multiple data packets, and transmitted in a burst sequence from a sender to a receiver over a wireless channel in a first time frame. Transmission of each data packet is separated from transmission of the next data packet by an inter-frame time period which is shortened by a channel switching duration. Then, selected video information bits are retransmitted to from the sender to the receiver in a second time frame.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: April 30, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harkirat Singh, Huai-Rong Shao, Pengfei Xia, Chiu Ngo
  • Patent number: 8428608
    Abstract: A method and system for allocating resources for a relay enhanced cellular communication system including a base station, one or more mobile stations and one or more relay stations, is provided. Resource allocation involves allocating subcarriers to one or more access communication links between mobile stations and their serving stations, to meet proportional data rate constraints for the access communication links while improving subcarrier spectrum utilization, and allocating subcarriers to one or more relay communication links between the base station and relay stations to meet proportional data rate constraints for the relay communication links while improving subcarrier spectrum utilization. Further, communication periods are scheduled for access links in access zones and relay links in relay zones. Balancing of communication resources allocated to the access links and relay links may be performed by balancing both subcarrier allocation and scheduling periods.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: April 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Liu, Chiu Ngo
  • Patent number: 8417191
    Abstract: A method and system for beamforming communication in high throughput wireless communications. Analog beamforming involves constructing analog beamforming coefficients for beamforming communication on a wireless channel. Constructing analog beamforming coefficients includes selecting a signal tap from a multi-tap wireless channel for beamforming communication, wherein the selected signal tap has a higher signal quality relative to other signals taps, and determining beamforming coefficients for the selected tap by iterative acquisition of the coefficients based on power iteration.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: April 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pengfei Xia, Huaning Niu, Chiu Ngo
  • Patent number: 8401595
    Abstract: A method and system of integrated wireless power and data transmission in a wireless device having a data communication circuit for wireless data communication and a power reception circuit including a charge storage unit. The wireless device is tuned to receive wireless RF signals in a certain frequency band via an antenna. Switching between power reception mode and data communication mode is detected. Received RF signal electrical charge is selectively distributed to the power reception circuit and/or the data communication circuit based on the switching mode and/or strength of the RF signal.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chunhui Zhu, Chiu Ngo
  • Patent number: 8400955
    Abstract: A system and method for wireless communication over multi-rate channels are disclosed. One embodiment of the system operates on wake-up schedules for power saving. The system includes a first multi-band wireless station that is capable of using a first frequency band and a second frequency band for wireless communication; and a second multi-band wireless station that is capable of using the first frequency band and the second frequency band for wireless communication. One or more of the first and second stations is configured to maintain therein one or more wake-up schedules on the second frequency band of one or more of the first station, the second station, and an access point. The first and second stations are configured to share the one or more wake-up schedules with each other via the first frequency band. The system allows the stations to effectively associate with each other, thereby saving power.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: March 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harkirat Singh, Julan Hsu, Chiu Ngo
  • Patent number: 8396018
    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: November 7, 2007
    Date of Patent: March 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Harkirat Singh, Xiangping Qin, Chiu Ngo
  • Patent number: 8385362
    Abstract: A method and system for wireless communication in an asymmetric antenna system (AAS) communication system is provided. A wireless station performs carrier sensing by sensing a wireless communication channel for ongoing communications in one or more directions. Upon detecting that the wireless communication channel is idle, the station transmits a frame preamble on the channel to a receiving wireless station in more than one transmit direction, and transmits a frame payload on the channel to the receiving wireless station in one transmit direction.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Chiu Ngo
  • Publication number: 20130034053
    Abstract: Information communication in a communication network comprises organizing information based on importance levels of the information. The information is aggregated in a packet based on said organization for transmission over a communication medium. Aggregating the information includes placing the information in the packet utilizing a scalable packet structure based on said organization. Information for a packet is partitioned based on information type, and organized in an aggregated packet in a pyramid format. Information in a packet can be organized/coded in a two-dimensional pyramid format for forwarding information from one or more communication devices. A first dimension includes information importance level and a second dimension includes device priorities based on a distance calculation.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huai-Rong Shao, Chiu Ngo
  • Publication number: 20130029712
    Abstract: Embodiments of the invention relate to device/service discovery and channel access control for peer-to-peer wireless communication systems. One embodiment comprises communication in a wireless communication network, by monitoring one or more broadcast channels utilized by one or more wireless communication devices, and based on said monitoring, obtaining information related to said one or more wireless devices. Said communication further includes providing the obtained information to said one or more wireless communication devices for establishing device-to-device wireless communication between at least a pair of wireless communication devices. In one embodiment, the device-to-device wireless communication comprises device-to-device wireless communication between a pair of wireless communication devices in a proximity device-to-device network.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 31, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huai-Rong SHAO, Chiu NGO
  • Patent number: 8363675
    Abstract: A method and system is provided for transmission of video information pixels over wireless channels, where each video pixel includes a plurality of components and each component comprises video information bits. The information bites are logically grouped into multiple logical groups in a packet, and error detection information is determined for each logical group. The error detection information is placed in the packet, and the packet is transmitted from a transmitter to a receiver over a wireless channel.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: January 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harkirat Singh, Huai-Rong Shao, Chiu Ngo
  • Patent number: 8355387
    Abstract: A system and method for providing spatial reuse in a wireless network for communicating compressed and uncompressed audio/video is disclosed. A bandwidth reservation request for data communication with a receiver to a coordinator is transmitted. A first response indicating availability of the receiver for the data communication is received. A channel is listened to by a station for channel busy indication (CBI) messages transmitted by other stations in the wireless network. A local channel occupation report comprising data indicative of one or more time periods during which one or more other stations in the wireless network are scheduled to transmit data messages is transmitted to the coordinator. A second response comprising data indicative of one or more allocated channel time slots is received. Audio and/or video (A/V) data is transmitted to the receiver during the allocated channel time slots.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: January 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xiangping Qin, Pengfei Xia, Chiu Ngo
  • Patent number: 8345681
    Abstract: A method and system for audio transmission in a wireless communication system which transmits digital video and digital audio in High-Definition Multimedia Interface (HDMI) format. Position information of audio packets within the HDMI frame is obtained. Digital audio information including the position information is transmitted from a data source device to a data sink device via a wireless communication medium. At the data sink device, an HDMI frame is reconstructed by inserting received audio packets into horizontal and vertical blanking periods of the HDMI frame.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: January 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Ju-Lan Hsu, Chiu Ngo
  • Publication number: 20120314713
    Abstract: Communication in an AV network includes a Talker device initiating communication with a Listener device via a proxy device for data streaming. The proxy device participates in one or more of: content discovery, connection establishment, AV selection and AV streaming between the Talker device initiating communication with a Listener device.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Inventors: Harkirat SINGH, Ilju NA, Jae Min LEE, Chiu NGO
  • Publication number: 20120314597
    Abstract: An enhanced stream reservation protocol comprising a Talker device sending a Stream Reservation Protocol (SRP) Talker Advertise message for streaming data to a Listener device, receiving the Talker Advertise message and checking bandwidth availability on an output port thereof for the streaming. In case of insufficient communication bandwidth, sending a failure message that includes information about available bandwidth from the Talker device to the Listener device. A protocol for communication in a bridged network, comprising a Talker device sending an SRP Talker Advertise message for streaming data to a Listener device. The Talker Advertise message includes communication path information from the Talker device to the Listener device. A communication path from the Talker device to the Listener device is selected based on said path metrics, for streaming data between the Talker device and the Listener device.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Inventors: Harkirat Singh, Soo-Young Kim, Jonghwa Kim, SeungHwan Kim, Ilju Na, Jae Min Lee, Chiu Ngo
  • Patent number: 8331265
    Abstract: A system and method for performing a beamforming training between heterogeneous wireless devices in a wireless network is disclosed. A number of time slots in a fixed-time period are assigned for transmit and/or receive sector training. The number of time slots assigned for transmit and/or receive sector training is based on an antenna configuration of a wireless station.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: December 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Su Khiong Yong, Julan Hsu, Harkirat Singh, Chiu Ngo
  • Patent number: 8325686
    Abstract: A channel time allocation and access control process for communication in wireless networks is provided. The channel time is divided into channel time blocks (CTBs), including one or more reserved CTBs and one or more unreserved CTBs. Schedules are implemented, wherein one or more periodic, equal-sized CTBs are reserved for isochronous streams. Dynamic CTB extension and truncation allow flexible channel time allocation.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: December 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Huai-Rong Shao, Harkirat Singh, Chiu Ngo
  • Patent number: 8306060
    Abstract: A system and method for efficiently communicating uncompressed video and for efficiently communicating corresponding acknowledgements in a system for wireless communication of uncompressed video are disclosed. In one embodiment, the method includes aggregating multiple subpackets of different types of data into a composite packet. The different types of data may include video, audio, control data, extraneous data files, and others. A robust composite packet configuration can provide for more flexible and more efficient transmission of data on the high rate channel as well as more efficient transmission of acknowledgements on the low rate channel.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: November 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chiu Ngo, Huai-Rong Shao, Harkirat Singh, Xiangping Qin