Patents by Inventor An Tsai

An Tsai 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).

  • Publication number: 20120095431
    Abstract: A diaper having an improved conjugated structure that is convenient, low-cost and easy for mass production is disclosed. The diaper includes a side wing having a magic hook located thereon and a rear thin sheet having an anti-leaking layer and a non-textile fabrics layer conjugated entirely or partially. The conjugation strength between the magic hook and the rear thin sheet is about 100 to 700 g/inch at 180 degrees, and the shear stress at 180 degrees is over 1000 g/inch. With the conjugation between the magic hook and the rear thin sheet, the user can randomly attach the magic hook to the surface of the non-textile fabrics layer to adjust the tightness of the diaper.
    Type: Application
    Filed: June 20, 2011
    Publication date: April 19, 2012
    Inventors: Po-An TSAI, Charng-Ching OU, Hsu-Feng SHIH
  • Patent number: 8139550
    Abstract: A base station for use in wireless network that communicates with subscriber stations according to a multicarrier protocol. The base station receives an uplink subframe comprising a plurality of blocks. Each of the blocks comprises up to N subcarriers transmitted by the subscriber stations. The base station receives a first acknowledgment signal transmitted by a first subscriber station in the uplink subframe. The first acknowledgment signal is carried on at least one selected subcarrier in a first block of the uplink subframe and on at least one selected subcarrier in a second block of the uplink subframe.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 20, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farooq Khan, Jiann-An Tsai
  • Patent number: 8116267
    Abstract: In a wireless network comprising a plurality of subscriber stations and a base station capable of providing service to the subscriber stations, a subscriber station is provided that includes a rank selector and a scheduling data reporter. The rank selector is operable to select a rank for the subscriber station. The rank is operable to identify a number of antennas for transmitting data streams from the base station to the subscriber station. The scheduling data reporter is operable to report scheduling data, including the rank, to the base station.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: February 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cornelius van Rensburg, Yinong Ding, Farooq Khan, Jiann-An Tsai
  • Patent number: 8098632
    Abstract: A scheduler for scheduling downlink transmissions of orthogonal frequency division multiple access (OFDMA) signals using spatially directed beams to a plurality of subscriber stations in a wireless network. The scheduler schedules the downlink transmissions as a function of frequency, time, and space. The scheduler further schedules downlink transmissions to a first subscriber station based on a first null space associated with at least one subscriber station previously scheduled to receive.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: January 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cornelius van Rensburg, Jiann-An Tsai
  • Patent number: 8077793
    Abstract: A base station that communicates with subscriber stations in an OFDM wireless network. The base station transmits a first data stream and a second data stream to a subscriber station using a first virtual antenna and a second virtual antenna. The base station allocates first data symbols associated with the first data stream to be transmitted from the first virtual antenna in a first selected group of subbands of OFDM subcarriers and allocates second data symbols associated with the first data stream to be transmitted from the second virtual antenna in a second selected group of subbands of OFDM subcarriers.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: December 13, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farooq Khan, Cornelius van Rensburg, Jiann-An Tsai
  • Publication number: 20110267586
    Abstract: A projection apparatus includes a light source emitting an illuminating beam, a light valve receiving the illuminating beam to create an image beam, and a projection lens system arranged on a path of the image beam for receiving and projecting the image beam onto a screen. The projection lens system includes four lens elements arranged along the optical axis in order from the screen toward the light valve, namely, first, second, third and fourth lens elements respectively having positive, negative, positive and positive refractive power. The four-piece projection lens system satisfies the condition of 0.79<BFL/TL<0.99; where, BFL is the back focal length of the projection lens system, and TL is the overall length of the projection lens system on the optical axis from a screen side of the first lens element to a light-valve side of the fourth lens element.
    Type: Application
    Filed: March 22, 2011
    Publication date: November 3, 2011
    Applicant: E-PIN OPTICAL INDUSTRY CO., LTD.
    Inventors: SHANG-AN TSAI, SAN-WOEI SHYU
  • Patent number: 8009065
    Abstract: The present invention is to provide a method for encoding and decoding serial signals formed by a plurality of color lights, which is applied to an encoding/decoding system comprising an encoding device and a decoding device, and comprises steps of generating a driving signal corresponding to at least one first serial code set by the encoding device, so as to drive a multi-color LED to generate a plurality of color lights having different wavelengths and interval time of flash intervals; and receiving the color lights by the decoding device, decoding the color lights according to a decoding procedure of the decoding device for obtaining the first serial code set, and sending an actuation signal when determining that the first serial code set is identical to a second serial code set, so as to provide a variety of more sophisticated, safer and uneasy interfered encoding/decoding functions to various wireless control procedures.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: August 30, 2011
    Assignee: Marketech International Corp.
    Inventors: Hsing-An Tsai, Kai-Hsiang Hsu, Yu-Hsin Wang, Jia-Zong Chen
  • Publication number: 20110199245
    Abstract: A multi-channel analog digital conversion circuit includes a plurality of sampling circuits for sampling and buffering a plurality of analog input signals, a single output circuit coupled to the sampling circuits and shared by the sampling circuits and a single analog digital conversion core coupled to the output circuit and shared by the sampling circuits.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 18, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: Chun-An TSAI
  • Patent number: 7991063
    Abstract: Methods and apparatus for transmitting data via multiple antennas by using antenna diversity. A transmission diversity scheme is established such that two transmission matrices that are in accordance with the space frequency block code combined with Frequency switched transmit diversity (SFBC+FSTD) scheme, are alternatively applied in either the frequency domain, or the time domain, or both of the frequency domain or then time domain. The symbols in the transmission matrices may be transmitted either as one burst in a primary broadcast channel (PBCH), or as discrete bursts in the primary broadcast channel.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Farooq Khan, Jiann-An Tsai, Jianzhong Zhang
  • Publication number: 20110170070
    Abstract: A light-mixing module includes a first plate, a second plate, a first dichroic mirror, a second dichroic mirror, and a third dichroic mirror. The first dichroic mirror is disposed between the first plate and the second plate and is substantially perpendicular to the first plate and the second plate. The second dichroic mirror is disposed on a first side of the first dichroic mirror. The second dichroic mirror forms an angle with the first dichroic mirror and is substantially perpendicular to the first plate and the second plate. The third dichroic mirror is disposed on a second side of the first dichroic mirror and is substantially perpendicular to the first plate and the second plate. The third dichroic mirror is substantially parallel with the second dichroic mirror. The second dichroic mirror and the third dichroic mirror together form a fourth dichroic mirror, and at least one of the first dichroic mirror and the fourth dichroic mirror has a bevel gradient dichroic film.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 14, 2011
    Inventors: Hsin-Chang Wu, Chang-An Tsai, Yu-Min Liao, Zhen-Xing Yan
  • Publication number: 20110119970
    Abstract: A water ball ornament with a bubble chamber is revealed. A closed container formed by a transparent container and a bottom cover that covers an opening edge of the transparent container is filled with a liquid. A bubble chamber is disposed projectingly under the bottom cover and having a through tube that connects with an inner space of the closed container so as to hide and receive bubbles generated in the closed container. When the closed container is rotated an angle to various positions, the liquid level in the bubble chamber is always over a lower end opening of the through tube so that the bubbles in the bubble chamber will not go back to the closed container.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventor: Jui-An TSAI
  • Publication number: 20110110451
    Abstract: Methods for a transmitter station and a receiver station to perform beamforming in a wireless communication system, and a transmitter station and a receiver station to perform the corresponding method, are provided. The method for the transmitter station to perform beamforming in the wireless communication system includes estimating and tracking a long-term averaged and normalized channel correlation matrix between the transmitter station and a receiver station, determining beamforming coefficients based on the tracked long-term averaged and normalized channel correlation matrix, and communicating with the receiver station using the determined beamforming coefficients, wherein the receiver station also estimates and tracks the long term averaged and normalized channel correlation matrix, and determines beamforming coefficients based on the tracked long-term averaged and normalized channel correlation matrix.
    Type: Application
    Filed: October 26, 2010
    Publication date: May 12, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Jiann-An TSAI, Zhouyue PI, Sudhir RAMAKRISHNA
  • Publication number: 20110090099
    Abstract: The present invention is to provide a method for encoding and decoding serial signals formed by a plurality of color lights, which is applied to an encoding/decoding system comprising an encoding device and a decoding device, and comprises steps of generating a driving signal corresponding to at least one first serial code set by the encoding device, so as to drive a multi-color LED to generate a plurality of color lights having different wavelengths and interval time of flash intervals; and receiving the color lights by the decoding device, decoding the color lights according to a decoding procedure of the decoding device for obtaining the first serial code set, and sending an actuation signal when determining that the first serial code set is identical to a second serial code set, so as to provide a variety of more sophisticated, safer and uneasy interfered encoding/decoding functions to various wireless control procedures.
    Type: Application
    Filed: December 1, 2009
    Publication date: April 21, 2011
    Applicant: MARKETECH INTERNATIONAL CORP.
    Inventors: Hsing-An Tsai, Kai-Hsiang Hsu, Yu-Hsin Wang, Jia-Zong Chen
  • Patent number: 7924775
    Abstract: A base station for use in a wireless network that communicates according to a multi-carrier protocol. The base station receives an uplink signal transmitted by a first subscriber station. The first subscriber station transmits using a configurable spectral shaping filter and a selectable modulation order. The base station determines a required bandwidth efficiency associated with the first subscriber station and, in response to the determination, selects a first modulation order and a first filter parameter to be used by the first subscriber station. Advantageously, the base station selects the first modulation order and the first filter parameter in order to maximize a power efficiency of the first subscriber station while maintaining the required bandwidth efficiency.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: April 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farooq Khan, Jiann-An Tsai
  • Publication number: 20110057293
    Abstract: A metal-oxide-metal capacitor including a first metal layer of negative electric charge, a second metal layer of the negative electric charge, and at least a third metal layer formed between the first metal layer and the second metal layer, each of the at least a third metal layer including a plurality of first stripes of the negative electric charge and a plurality of second stripes of positive electric charge, wherein one of the plurality of first stripes is at a side of the third metal layer.
    Type: Application
    Filed: October 28, 2009
    Publication date: March 10, 2011
    Inventor: Chun-An Tsai
  • Patent number: 7904034
    Abstract: A system, a receiver apparatus, a transmitter apparatus and a method for inter-user interference cancellation when simultaneous transmissions from two wireless users to the same base station are repeated using the same time-frequency resource. The percentage of interference cancellation is pre-set and phase shifts of the first and repeated transmitted symbols for each mobile user are determined in accordance with this pre-set percentage. The receiver uses a pre-determined technique for estimating the received symbols in accordance with the pre-set percentage and phase shifts.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farooq Khan, Cornelius Van Rensburg, Zhouyue Pi, Jiann-An Tsai, Yinong Ding
  • Patent number: 7885660
    Abstract: A method for performing a soft handoff for a mobile station from a source base station to a target base station in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless network that is capable of communicating with a plurality of mobile stations in a coverage area of the OFDMA wireless network is provided. The method includes determining whether a relative delay between receipt of a source pilot signal from a source base station and receipt of a target pilot signal from a target base station is less than a downlink coherence time. When the relative delay is less than the downlink coherence time, the soft handoff is performed.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: February 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cornelius Van Rensburg, Yinong Ding, Jiann-An Tsai
  • Publication number: 20110026459
    Abstract: A wireless communications network including a plurality of base stations is provided. Each one of the base stations wirelessly communicates with a plurality of subscriber stations. At least one of the plurality of base stations includes a receiver configured to receive a precoding vector index (PVI) from a subscriber station. The least one of the plurality of base stations also includes a controller configured to update a transmit covariance matrix using the precoding vector index, and transform a codebook using the updated transmit covariance matrix. The least one of the plurality of base stations further includes a transmitter configured to perform transmit beamforming to the subscriber station using the transformed codebook.
    Type: Application
    Filed: April 9, 2010
    Publication date: February 3, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jiann-An Tsai, Zhouyue Pi
  • Patent number: 7865153
    Abstract: A base station for use in a wireless network communicating with a plurality of subscriber stations. The base station transmits in a downlink channel to a first subscriber station using a plurality of transmit antennas. The base station transmits to the first subscriber station using either a transmit diversity scheme or a beamforming scheme according to the amount of correlation between the transmit antennas observed at the first subscriber station. The base station also transmits to the first subscriber station using a cyclic delay diversity scheme having either zero delay or non-zero delay according to the amount of antenna/channel correlation observed at the first subscriber station.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: January 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farooq Khan, Cornelius van Rensburg, Jiann-An Tsai
  • Publication number: 20100316570
    Abstract: The present invention relates to a viral particle. The viral particle has a radius of less than about 1 ?m, and at least one peptide comprising at least a biologically active portion of CD47. The present invention also includes a method of increasing the life of a particle in vivo in a mammal. The method includes the steps of expressing at least one peptide comprising at least a biologically active portion of CD47 in a viral particle, and administering the viral particle having CD47 expressed to a mammal, wherein the administered viral particle has a longer half life in the mammal than an otherwise identical viral particle that does not have CD47 expressed thereon.
    Type: Application
    Filed: March 10, 2010
    Publication date: December 16, 2010
    Inventors: DENNIS E. DISCHER, RICHARD KUO-AN TSAI