Patents by Inventor Ha Nguyen

Ha 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: 10007850
    Abstract: A system for event detection and reporting has primary sensors for producing raw data from observing the proximate area, one or more processors for the primary sensors, for processing the raw data to produce output, a centralized controller to which each of the processors is connected, for receiving the output, a security network for communicating between the sensors, the controller, and one or more remote terminals, the security network having an alarm, and a plurality of auxiliary sensors for providing secondary sensor information to the one or more processors wherein the controller provides an alarm to the remote terminals through the security network if an event has occurred. A method of event detection has the steps of receiving a control command, alarm message and sensor information, determining if an event has occurred, and sending alarm messages and filtered sensor information to remote terminals if an event has occurred.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: June 26, 2018
    Assignee: INNOVATIVE ALERT SYSTEMS INC.
    Inventors: Henry Leung, Xiaoxiang Liu, Ha Nguyen
  • Publication number: 20180130697
    Abstract: A semiconductor device includes a first insulating interlayer on a first region of a substrate and a second insulating interlayer on a second region of the substrate, a plurality of first wiring structures on the first insulating interlayer, the first wiring structures being spaced apart from each other, a plurality of second wiring structures filling a plurality of trenches on the second insulating interlayer, respectively, an insulation capping structure selectively on a surface of the first insulating interlayer between the first wiring structures and on a sidewall and an upper surface of each of the first wiring structures, the insulation capping structure including an insulating material, a third insulating interlayer on the first and second wiring structures, and an air gap among the first wiring structures under the third insulating interlayer.
    Type: Application
    Filed: June 7, 2017
    Publication date: May 10, 2018
    Inventors: Sang-Shin JANG, Woo-Kyung YOU, Kyu-Hee HAN, Jong-Min BAEK, Viet Ha NGUYEN, Byung-Hee KIM
  • Publication number: 20180102280
    Abstract: Methods for fabricating semiconductor devices may provide enhanced performance and reliability by recovering quality of a low-k insulating film damaged by a plasma process. A method may include forming a first interlayer insulating film having a trench therein on a substrate, filling at least a portion of the trench with a metal wiring region, exposing a surface of the metal wiring region and a surface of the first interlayer insulating film to a plasma in a first surface treatment process, then exposing the surface of the first interlayer insulating film to a recovery gas containing a methyl group (—CH3) in a second surface treatment process, and then forming an etch stop layer on the metal wiring region and the first interlayer insulating film.
    Type: Application
    Filed: June 29, 2017
    Publication date: April 12, 2018
    Inventors: Viet Ha NGUYEN, Nae In LEE, Thomas OSZINDA, Byung Hee KIM, Jong Min BAEK, Tae Jin YIM
  • Publication number: 20180096880
    Abstract: A semiconductor device includes a first interlayer dielectric film on a substrate, first and second wires respectively extending in a first direction within the first interlayer dielectric film, the first and second wires being adjacent to each other in a second direction different from the first direction, a hard mask pattern on the first interlayer dielectric film, the hard mask pattern including an opening, and an air gap within the first interlayer dielectric film, the air gap including a first portion overlapping vertically with the opening and a second portion not overlapping with the opening in the first direction.
    Type: Application
    Filed: June 2, 2017
    Publication date: April 5, 2018
    Inventors: Kyu Hee HAN, Jong Min BAEK, Viet Ha NGUYEN, Woo Kyung YOU, Sang Shin JANG, Byung Hee KIM
  • Publication number: 20170344832
    Abstract: A system for event detection and reporting has primary sensors for producing raw data from observing the proximate area, one or more processors for the primary sensors, for processing the raw data to produce output, a centralized controller to which each of the processors is connected, for receiving the output, a security network for communicating between the sensors, the controller, and one or more remote terminals, the security network having an alarm, and a plurality of auxiliary sensors for providing secondary sensor information to the one or more processors wherein the controller provides an alarm to the remote terminals through the security network if an event has occurred. A method of event detection has the steps of receiving a control command, alarm message and sensor information, determining if an event has occurred, and sending alarm messages and filtered sensor information to remote terminals if an event has occurred.
    Type: Application
    Filed: November 29, 2013
    Publication date: November 30, 2017
    Inventors: Henry Leung, Xiaoxiang Liu, Ha Nguyen
  • Patent number: 9255218
    Abstract: A method for synthesizing a composition comprising at least one acid ester stemming from the biomass and an organic biosolvent is provided. The method comprises the esterification reaction between at least one acid stemming from the biomass and at least one alcohol, in the presence of an acid catalyst and of the organic biosolvent, the organic biosolvent being selective of the ester or of the esters formed relatively to the acid or to the starting acids and non-miscible with the alcoholic solution of the acid stemming from the biomass.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: February 9, 2016
    Assignees: INSTITUT VIETNAMIEN DE CHIMIE INDUSTRIELLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S), UNIVERSITÉ CLAUDE BERNARD LYON 1
    Inventors: Nadine Essayem, Gilbert Sapaly, Thi Thu Ha Vu, Thi Thu Trang Nguyen, Thi Thuy Ha Nguyen
  • Patent number: 9253716
    Abstract: A technique that can effectively utilize unused wireless link and realize high-quality wireless communication between a communication terminal and a base station and enables efficient distribution of radio resources over an entire wireless communication system is provided. A wireless communication system in which a base station and a communication terminal can conduct wireless communication by detecting a usable wireless link and changing a wireless link used for the connection is also provided. On the communication network side, in addition to a plurality of wireless communication networks and a base station, a server device is provided.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 2, 2016
    Assignee: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Kentaro Ishizu, Homare Murakami, Goh Miyamoto, Ha Nguyen Tran, Stanislav Filin, Hiroshi Harada
  • Patent number: 9049648
    Abstract: Object: To provide a mechanism and a function of a system that can determine a communication method and the like effectively utilizing frequency resources, considering priority of each communication, in a cognitive communication network system of a frequency shared type or the like assuming that a given frequency band is shared by a plurality of systems in use.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: June 2, 2015
    Assignee: National Institute of Information and Communications Technology
    Inventors: Kentaro Ishizu, Homare Murakami, Goh Miyamoto, Ha Nguyen Tran, Stanislav Filin, Chen Sun, Yohannes Alemseged Demessie, Hiroshi Harada
  • Patent number: 8999242
    Abstract: A device for measuring blood coagulation time is formed from a first substrate; a second substrate; a spacer layer disposed between the first and second substrates, said spacer layer having an opening formed therein defining a sample receiving chamber, a vented sink chamber, and an elongated reservoir forming a conduit for liquid movement between the sample receiving chamber and the sink chamber; a first electrode disposed on the first substrate, said first electrode being exposed in the reservoir portion through a first opening in the spacer layer; and a second electrode disposed on the second substrate, said second electrode being exposed in the reservoir portion through a second opening in the spacer layer. The device of the invention is used in combination with an apparatus that is connected to the first and second electrodes for measuring current flow between the first and second electrodes.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: April 7, 2015
    Assignee: AgaMatrix, Inc.
    Inventors: Ian Harding, Sridhar G. Iyengar, Ha Nguyen, Richard Williams, Anoop Rao
  • Publication number: 20150074159
    Abstract: According to various embodiments, a method for determining a result of applying a first function to an input may be provided. The method may include: determining a second function; and applying the second function to a value based on the input to determine a first intermediate value; applying the second function to a value based on the intermediate value to determine the result.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Axel York POSCHMANN, Sebastian Thomas KUTZNER, Ha NGUYEN PHUONG
  • Patent number: 8929440
    Abstract: Entropy encoding is performed in the inventive apparatus and method in response to the scanning of transform coefficients following an initial scanning pattern selected on the basis of probability statistics of non-zero coefficients for each block position. These non-zero probability statistics are ranked for a given combination of coding characteristics within the current block to arrive at an initial scanning pattern. The same initial scanning pattern selection is performed in the decoder to allow the transform coefficients to be extracted in their proper order from encoded video data. The pattern selection is applicable to both intra prediction and inter prediction. Transform coefficients are more accurately ordered in response to the invention because in adapting pattern initialization to quantization step size, high-frequency basis functions are properly taken into account.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: January 6, 2015
    Assignee: Sony Corporation
    Inventors: Thai-Ha Nguyen, Yoichi Yagasaki, Ali Tabatabai
  • Patent number: 8917685
    Abstract: Disclosed is a wireless communication system and the like that can avoid interference even if a plurality of networks coexist. The wireless communication system includes a primary user, cluster head equipment, and a secondary user. The cluster head equipment is for providing a local area network to a cluster region containing the abovementioned primary user. Also, the cluster head equipment contains: an acquisition means that acquires one or both—of information regarding the primary user and information regarding a primary signal—and the like; and a transmission means that transmits information to the secondary user. Then, using this wireless communication system, the secondary user performs cognitive wireless communication or the like on the basis of the information received from the transmission means of the cluster head equipment.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 23, 2014
    Assignee: National Institute Of Information And Communications Technology
    Inventors: Gabriel Porto Villardi, Chen Sun, Yohannes Alemseged Demessie, Ha Nguyen Tran, Hiroshi Harada
  • Patent number: 8874152
    Abstract: Disclosed is a wireless communication system capable of avoiding interference even when a network including a secondary user coexists. The wireless communication system includes a primary user belonging to a first network, a first secondary user belonging to a second network, and a coexistence manager (CM). The coexistence manager (CM) acquires information relating to spectrum holes that are, at least temporarily, not in use by the primary user. In addition, the coexistence manager (CM) determines whether or not usage of the spectrum holes by the first secondary user causes interference. If the determination result is that interference is caused, coexistence manager (CM) notifies to this effect a second secondary user belonging to a third network, which differs from the second network.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: October 28, 2014
    Assignee: National Institute of Information and Communications Technology
    Inventors: Chen Sun, Ha Nguyen Tran, Yohannes Alemseged Demessie, Hiroshi Harada
  • Patent number: 8849338
    Abstract: There is disclosed a channel adjusting method capable of suppressing the occurrence of interference between a cognitive pilot channel (CPC) and an auxiliary control channel (ACS) in cognitive wireless communications. According to the channel adjusting method for use in cognitive wireless communications, initially, a connection using a cognitive pilot channel (CPC) is set up. Thereafter, it is determined whether or not a spectrum sensing channel (ACS) is to be utilized. If yes, it is then determined whether or not any interference occurs between the spectrum sensing channel (ACS) and the set-up cognitive pilot channel (CPC). This allows an adjustment to be performed such that no interference occurs between the cognitive pilot channel (CPC) and the spectrum sensing channel (ACS).
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: September 30, 2014
    Assignee: National Institute of Information and Communications Technology
    Inventors: Chen Sun, Yohannes Alemseged Demessie, Ha Nguyen Tran, Hiroshi Harada
  • Patent number: 8838162
    Abstract: Provided is a power control method, etc., in cognitive radio communication, by which power control can be effectively performed without a large indirect cost. In the power control method, a target value of SNR is estimated on the basis of the control information relating to interference. Subsequently, communication power used for the cognitive radio communication is adjusted on the basis of the estimated target value of SNR. Thereby, power control can be effectively performed without a large indirect cost.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: September 16, 2014
    Assignee: National Institute of Information and Communications Technology
    Inventors: Chen Sun, Yohannes Alemseged Demessie, Ha Nguyen Tran, Hiroshi Harada
  • Patent number: 8831520
    Abstract: In a cognitive radio communication device, before a communication link for the cognitive radio communication is established, a control channel which is a common channel which can be used by a plurality of cognitive radio communication devices is detected. By exchanging sensing information and sensing control information among the plurality of radio communication devices using the detected common channel, the information is shared. The plurality of cognitive radio communication devices share the sensing information and the sensing control information, and use the information for determining a channel used for spectrum monitoring and data communication, and the like.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: September 9, 2014
    Assignee: National Institute of Information and Communications Technology
    Inventors: Yohannes Alemseged Demessie, Ha Nguyen Tran, Chen Sun, Hiroshi Harada
  • Patent number: 8787193
    Abstract: Provided is a wireless communication system capable of increasing safety in the aviation industry, and applicable to the aviation industry. The wireless communication system comprises a control device and a spectrum sensor. The spectrum sensor performs spectrum sensing using a measurement SAP, receives a signal from a wireless communication device, and transmits information relating to the received signal as sensing information through a communication SAP. On the other hand, the control device receives the sensing information from the spectrum sensor through the communication SAP. Subsequently, the sensing information is analyzed using an application SAP. Thereby, whether or not the signal from the wireless communication device interferes with the radio waves of the airband used in the aviation industry is specified.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: July 22, 2014
    Assignee: National Institute Of Information And Communications Technology
    Inventors: Chen Sun, Yohannes Alemseged Demessie, Ha Nguyen Tran, Hiroshi Harada
  • Publication number: 20140195368
    Abstract: Methods and associated computer-readable media to detect fraudulent activities made over a network-based facility using a machine are disclosed. Responsive to a first event with respect to the network-based facility and initiated either under a first user identity or a first set of user transaction preferences from the machine which is coupled to the network-based facility via a network, the method causes a first identifier associated with either the first user identity or the first set of user transaction preferences to be stored on the machine. Responsive to a second event initiated under either a second user identity or a second set of user transaction preferences, detecting a potentially fraudulent activity occurs by detecting a lack of correspondence between the first identifier stored on the machine and a second identifier associated with either the second user identity or the second set of user transaction preferences.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 10, 2014
    Applicant: eBay Inc.
    Inventors: Christine Cheng, Brenda Won, Dheeraj Singh Mohnia, Ha Nguyen, Reed Maltzman, Isaac Strack, Noel Morin
  • Patent number: 8755462
    Abstract: In a DOCSIS transmission network, it is necessary for an upstream receiver to estimate and correct for errors in the carrier frequency of the transmission based upon observations of a preamble sequence. This task is complicated by the fact that microreflections in the upstream channels cause intersymbol interference, which tends to bias the frequency estimation circuit. An economical, ISI-immune algorithm is provided for estimating the carrier frequency of upstream transmissions. The arrangement improves the reliability of the frequency estimates in the presence of ISI, thereby reducing the overhead and increasing the throughput of the upstream channels.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 17, 2014
    Assignee: Vecima Networks Inc.
    Inventors: Brian Berscheid, Eric Salt, Ha Nguyen
  • Patent number: 8724753
    Abstract: Provided is a spectrum sensor for cognitive wireless communication whereby it is possible to improve communication efficiency. In a cognitive wireless communication system, a spectrum sensor senses spectra in multiple frequency bands. A spectrum sensor is configured to be able to operate in one operation mode selected from among a spectrum sensing mode for sensing spectra, and a communication mode for communicating with a wireless communication device. Further, the spectrum sensor is provided with a controller for controlling the operation mode. The controller switches between the above-mentioned operation modes during the symbol period of an ultra-wideband physical layer (UWB PHY).
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: May 13, 2014
    Assignee: National Institute of Information and Communications Technology
    Inventors: Yohannes Alemseged Demessie, Chen Sun, Ha Nguyen Tran, Hiroshi Harada