Patents by Inventor Phong Nguyen

Phong Nguyen 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: 8780432
    Abstract: Embodiments of the invention generally provide electrochromic devices and materials and processes for forming such electrochromic devices and materials. In one embodiment, an electrochromic device contains a lower transparent conductor layer disposed on a substrate, wherein an upper surface of the lower transparent conductor layer has a surface roughness of greater than 50 nm and a primary electrochromic layer having planarizing properties is disposed on the lower transparent conductor layer. The upper surface of the primary electrochromic layer has a surface roughness less than the surface roughness of upper surface of the lower transparent conductor layer, such as about 50 nm or less.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: July 15, 2014
    Inventor: Paul Phong Nguyen
  • Publication number: 20140126513
    Abstract: A method of providing control information for user equipments (UEs) in communication with a base station over a wireless communication system includes: mapping at least one enhanced-physical downlink control channel (E-PDCCH) on at least one allocated pair of physical resource blocks (PRBs) according to an enhanced-control channel element (ECCE) structure including a variable number of resource element groups (REGs); and varying the number of REGs in an E-CCE structure.
    Type: Application
    Filed: February 18, 2013
    Publication date: May 8, 2014
    Inventors: Phong Nguyen, Satha Sathananthan, Kevin Lin
  • Patent number: 8711796
    Abstract: A method of providing a packetized data transmission service to a mobile terminal (108) in a spread spectrum communication network (100), includes: at a transmitter (102), broadcasting an indication message to a cell on a downlink broadcast channel (114), the indication message providing notification of an available packetized data transmission service intended for the mobile terminal (108); at the mobile terminal (108), monitoring the broadcast channel (114) for the indication message, and upon receipt, acknowledging detection of the indication message to the transmitter (102) on an uplink contention channel (116); and at the transmitter (102), upon contention completion, transmitting packetized data transmission service configuration information to the mobile terminal (108) on the broadcast channel (114).
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: April 29, 2014
    Assignee: Nec Corporation
    Inventor: Phong Nguyen
  • Patent number: 8711798
    Abstract: A method of providing a packetized data transmission service to a mobile terminal (108) in a spread spectrum communication network (100), includes: at a transmitter (102), broadcasting an indication message to a cell on a downlink broadcast channel (114), the indication message providing notification of an available packetized data transmission service intended for the mobile terminal (108); at the mobile terminal (108), monitoring the broadcast channel (114) for the indication message, and upon receipt, acknowledging detection of the indication message to the transmitter (102) on an uplink contention channel (116); and at the transmitter (102), upon contention completion, transmitting packetized data transmission service configuration information to the mobile terminal (108) on the broadcast channel (114).
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: April 29, 2014
    Assignee: NEC Corporation
    Inventor: Phong Nguyen
  • Patent number: 8705643
    Abstract: A method of channel estimation for a control channel in an OFDM system of the present invention includes the steps of: performing weighted averaging over time of input LS estimates of a plurality of channel condition matrices; performing frequency domain averaging on the input LS estimates; performing channel estimates on multiple subcarriers of pilot OFDM symbols from the frequency domain averaged input LS estimates; and performing channel estimates on multiple subcarriers of OFDM symbols in the control channel from the channel estimates on the subcarriers of pilot OFDM symbols.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: April 22, 2014
    Assignee: NEC Corporation
    Inventors: Kanagaratnam Sathananthan, Phong Nguyen, Huei-Ming Lin
  • Patent number: 8588271
    Abstract: The present invention relates generally to methods for generating a dynamic pilot symbol structure in spread spectrum communication systems, and in particular to the use of pilot symbols by user equipment in channel estimation. In one form, the method includes, allocating basic pilot symbols at the beginning of each data chunk and spread over the plurality of sub-carrier frequencies; and selectively replacing data symbols in each data chunk with adaptive pilot symbols according to the speed of the user equipment.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: November 19, 2013
    Assignee: NEC Corporation
    Inventor: Phong Nguyen
  • Patent number: 8576935
    Abstract: The present invention relates generally to methods for generating a dynamic pilot symbol structure in spread spectrum communication systems, and in particular to the use of pilot symbols by user equipment in channel estimation. In one form, the method includes, allocating basic pilot symbols at the beginning of each data chunk and spread over the plurality of sub-carrier frequencies; and selectively replacing data symbols in each data chunk with adaptive pilot symbols according to the speed of the user equipment.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: November 5, 2013
    Assignee: NEC Corporation
    Inventor: Phong Nguyen
  • Publication number: 20130235951
    Abstract: The present invention relates to methods for implementing transmit diversity in a telecommunication network. In particular there is provided an algorithm for performing transmit diversity encoding in a transmitter (100) and transmit diversity decoding in a receiver (1700) respectively. In the method processed pairs of data blocks (314.1A, 314.1B) are transmitted on a first antenna (112.1) on N sub-carriers in a first temporal order; and a second antenna (112.2) in the reverse temporal order.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 12, 2013
    Applicant: NEC CORPORATION
    Inventors: Phong Nguyen, Jolyon White
  • Patent number: 8498376
    Abstract: A method and system for using Threat Imaging Projection (TIP) technology, and the operator testing data that it generates, in order to certify x-ray inspection system operators and thereby assure an acceptable and uniform level of operator performance. In a preferred configuration, the operator views x-ray images of objects on a screening system equipped with TIP technology. When the operator believes that a threat item image appears on the screening system, the operator indicates such via an indicating means. The system is capable of recording, storing and transmitting individual operator performance data relating to proper detections, missed detections, and false alarms, i.e., when an operator indicates that a threat item image appears when no such image actually appears on the screening system. The system preferably contains a library of various threat item images, e.g., guns, bombs, knives, etc., which are classified according to type of threat and difficulty of detection.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: July 30, 2013
    Assignee: Rapiscan Systems, Inc.
    Inventors: Peter Modica, Khai Le, Phong Nguyen
  • Publication number: 20130145884
    Abstract: A satellite electrical bicycle shift control device comprising: a mounting portion and a first electrical shift control switch portion attached to the mounting portion, the electrical shift control switch portion including an operating member moveable, relative to the mounting portion, between a neutral position and an actuating position.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Inventor: Phong Nguyen
  • Patent number: 8458559
    Abstract: A method of encoding a bit sequence over a Physical Downlink Control Channel (PDCCH) having Downlink Control Information (DCI) including: determining DCI bits to provide a DCI bit sequence; performing a CRC calculation on the DCI bit sequence to provide a CRC parity bit sequence; scrambling the CRC parity bit sequence to provide a scrambled CRC bit sequence; if the DCI format is LTE-A, further scrambling the DCI together with the attached scrambled CRC bit sequence to provide a LTE-A scrambled bit sequence; channel coding either the DCI attached scrambled CRC bit sequence or LTE-A scrambled bit sequence to provide a channel coded bit sequence; modulating the channel coded bit sequence to provide a modulated symbol sequence; layer mapping the modulated symbol sequence to one or more antennas associated with a transmitter to provide one or more layers having a symbol sequence; and precoding the layered symbol sequences.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: June 4, 2013
    Assignee: NEC Corporation
    Inventors: Jiun Siew, Phong Nguyen
  • Patent number: 8335183
    Abstract: A method of providing a packetized data transmission service to a mobile terminal in a spread spectrum communication network, includes: at a transmitter, broadcasting an indication message to a cell on a downlink broadcast channel, the indication message providing notification of an available packetized data transmission service intended for the mobile terminal; at the mobile terminal, monitoring the broadcast channel for the indication message, and upon receipt, acknowledging detection of the indication message to the transmitter on an uplink contention channel; and at the transmitter, upon contention completion, transmitting packetized data transmission service configuration information to the mobile terminal on the broadcast channel.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 18, 2012
    Assignee: Nec Corporation
    Inventor: Phong Nguyen
  • Publication number: 20120314731
    Abstract: A method of providing a packetized data transmission service to a mobile terminal (108) in a spread spectrum communication network (100), includes: at a transmitter (102), broadcasting an indication message to a cell on a downlink broadcast channel (114), the indication message providing notification of an available packetized data transmission service intended for the mobile terminal (108); at the mobile terminal (108), monitoring the broadcast channel (114) for the indication message, and upon receipt, acknowledging detection of the indication message to the transmitter (102) on an uplink contention channel (116); and at the transmitter (102), upon contention completion, transmitting packetized data transmission service configuration information to the mobile terminal (108) on the broadcast channel (114).
    Type: Application
    Filed: June 11, 2012
    Publication date: December 13, 2012
    Applicant: NEC CORPORATION
    Inventor: Phong Nguyen
  • Publication number: 20120314669
    Abstract: A method of providing a packetized data transmission service to a mobile terminal (108) in a spread spectrum communication network (100), includes: at a transmitter (102), broadcasting an indication message to a cell on a downlink broadcast channel (114), the indication message providing notification of an available packetized data transmission service intended for the mobile terminal (108); at the mobile terminal (108), monitoring the broadcast channel (114) for the indication message, and upon receipt, acknowledging detection of the indication message to the transmitter (102) on an uplink contention channel (116); and at the transmitter (102), upon contention completion, transmitting packetized data transmission service configuration information to the mobile terminal (108) on the broadcast channel (114).
    Type: Application
    Filed: July 18, 2012
    Publication date: December 13, 2012
    Applicant: NEC CORPORATION
    Inventor: Phong Nguyen
  • Publication number: 20120300902
    Abstract: A method and system for using Threat Imaging Projection (TIP) technology, and the operator testing data that it generates, in order to certify x-ray inspection system operators and thereby assure an acceptable and uniform level of operator performance. In a preferred configuration, the operator views x-ray images of objects on a screening system equipped with TIP technology. When the operator believes that a threat item image appears on the screening system, the operator indicates such via an indicating means. The system is capable of recording, storing and transmitting individual operator performance data relating to proper detections, missed detections, and false alarms, i.e., when an operator indicates that a threat item image appears when no such image actually appears on the screening system. The system preferably contains a library of various threat item images, e.g., guns, bombs, knives, etc., which are classified according to type of threat and difficulty of detection.
    Type: Application
    Filed: March 27, 2012
    Publication date: November 29, 2012
    Inventors: Peter Modica, Khai Le, Phong Nguyen
  • Publication number: 20120106596
    Abstract: The present invention relates generally to methods for generating a dynamic pilot symbol structure in spread spectrum communication systems, and in particular to the use of pilot symbols by user equipment in channel estimation. In one form, the method includes, allocating basic pilot symbols at the beginning of each data chunk and spread over the plurality of sub-carrier frequencies; and selectively replacing data symbols in each data chunk with adaptive pilot symbols according to the speed of the user equipment.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Inventor: PHONG NGUYEN
  • Publication number: 20120093256
    Abstract: The present invention relates to methods for implementing transmit diversity in a telecommunication network. In particular there is provided an algorithm for performing transmit diversity encoding in a transmitter (100) and transmit diversity decoding in a receiver (1700) respectively. In the method processed pairs of data blocks (314.1A, 314.1B) are transmitted on a first antenna (112.1) on N sub-carriers in a first temporal order; and a second antenna (112.2) in the reverse temporal order.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Applicant: NEC CORPORATION
    Inventors: Phong Nguyen, Jolyon White
  • Publication number: 20120033751
    Abstract: A method of channel estimation for a control channel in an OFDM system of the present invention includes the steps of: performing weighted averaging over time of input LS estimates of a plurality of channel condition matrices; performing frequency domain averaging on the input LS estimates; performing channel estimates on multiple subcarriers of pilot OFDM symbols from the frequency domain averaged input LS estimates; and performing channel estimates on multiple subcarriers of OFDM symbols in the control channel from the channel estimates on the subcarriers of pilot OFDM symbols.
    Type: Application
    Filed: March 31, 2010
    Publication date: February 9, 2012
    Applicant: NEC CORPORATION
    Inventors: Kanagaratnam Sathananthan, Phong Nguyen, Huei-Ming Lin
  • Patent number: 8102933
    Abstract: The present invention relates to methods for implementing transmit diversity in a telecommunication network. In particular there is provided an algorithm for performing transmit diversity encoding in a transmitter (100) and transmit diversity decoding in a receiver (1700) respectively. In the method processed pairs of data blocks (314.1A, 314.1B) are transmitted on a first antenna (112.1) on N sub-carriers in a first temporal order; and a second antenna (112.2) in the reverse temporal order.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: January 24, 2012
    Assignee: NEC Corporation
    Inventors: Phong Nguyen, Jolyon White
  • Patent number: 8094737
    Abstract: The present invention relates generally to methods for generating a dynamic pilot symbol structure in spread spectrum communication systems, and in particular to the use of pilot symbols by user equipment in channel estimation. In one form, the method includes, allocating basic pilot symbols (402) at the beginning of each data chunk (404, 406) and spread over the plurality of sub-carrier frequencies; and selectively replacing data symbols (408) in each data chunk (400) with adaptive pilot symbols (410) according to the speed of the user equipment.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: January 10, 2012
    Assignee: NEC Corporation
    Inventor: Phong Nguyen