Patents Represented by Attorney, Agent or Law Firm Reed Smith Shaw & McClay LLP
  • Patent number: 6154453
    Abstract: A method of selecting a vocoder in a CDMA mobile communication system, includes the steps of: indexing shelves, slots, and vocoders, before sequentially selecting a shelf and a slot according to the order of index, and, after detecting a frame offset of a present call, calculating a number of frame offsets identical with the frame offset of the present call contained in the selected slot; and comparing the number of the frame offsets, which are identical with the present call's frame offset and contained in the slot sequentially selected, with numbers of the identical frame offsets contained in other slots, and selecting a slot having the fewest frame offsets identical with the present call's frame offset.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: November 28, 2000
    Assignee: Hyundai Electronics Ind. Co., Ltd.
    Inventors: Jong-Woo Kim, Dong-Myoung Kim
  • Patent number: 6151367
    Abstract: A digital demodulator includes: a local oscillator for generating a predetermined frequency signal; a mixer for mixing an intermediate frequency (IF) signal with a local oscillation frequency signal output by the local oscillator; an A/D converter for converting a signal output by the mixer into a digital signal; an I and Q signal generator for producing I and Q signals from an output of the A/D converter; and a compensation unit for compensating the signals I and Q for phase errors.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: November 21, 2000
    Assignee: Hyundai Electronics Ind. Co., Ltd.
    Inventor: Kwang-Woo Lim
  • Patent number: 6149272
    Abstract: An arrangement for use with a device that determines subjective refraction and/or performs other visual functions, comprises at least one light source, at least one light modulator for modulating the light source to produce modulated light, a driving unit for controlling said modulator to modulate the light source in accordance with video information corresponding to a video image, a two-dimensional deflector for deflecting the modulated light to produce a two-dimensional image, an optical transmitter for optically transmitting the light of the light source, and an optical projector for optically projecting the two-dimensional image onto a retina of an eye to be examined.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: November 21, 2000
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Roland Bergner, Klaus-Ditmar Voigt
  • Patent number: 6150029
    Abstract: A method of forming a film having enhanced reflow characteristics at low thermal budget is disclosed, in which a surface layer of material is formed above a base layer of material, the surface layer having a lower melting point than the base layer. In this way, a composite film having two layers is created. After reflow, the surface layer can be removed using conventional methods.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: November 21, 2000
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej Sandhu, Randhir P. S. Thakur
  • Patent number: 6151320
    Abstract: An ATM cell boundary identification apparatus and method.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: November 21, 2000
    Assignee: Hyundai Electronics Ind. Co., Ltd.
    Inventor: Kee Pyong Shim
  • Patent number: 6151288
    Abstract: An optical head assembly comprises a laser light source, an objective lens for converging a laser light emitted from the laser light source on an optical recording medium, an optical detector for detecting a returning light from the optical recording medium, a diffraction unit mounted in an optical path between the laser light source and objective lens for positioning multiple diffraction grating means, a base of the optical head assembly for supporting the objective lens, the laser light source and the optical detector, and a diffraction grating unit retaining portion formed on the base for holding the diffraction grating unit.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: November 21, 2000
    Assignee: Sankyo Seiki Mfg. Co., Ltd.
    Inventors: Yuichi Takei, Tadashi Takeda, Yoshio Hayashi
  • Patent number: 6150363
    Abstract: Dihydrophenazinecarboxylic acid derivatives of the formula (I) wherein R.sup.1 represents hydrogen, linear or branched alkyl, etc., each of R.sup.2 and R.sup.3 represents hydrogen, 3-methyl-2-butenyl, etc., and each of R.sup.4 and R.sup.5 represents hydrogen, alkyl, alkenyl, aralkyl, aryl, hydroxyl, alkoxy, aryloxy, aralkyloxy, halogen, nitro, cyano, alkylsulfonyl, arylsulfonyl, alkylcarbonyl, arylcarbonyl, etc., provided that there is no case that both of R.sup.4 and R.sup.5 are hydrogen. The dihydrophenazinecarboxylic acid derivatives are excellent in the inhibition of glutamic acid toxicity.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: November 21, 2000
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Toshihiro Takahashi, Yutaka Nomura, Haruo Seto, Kazuo Shin-ya
  • Patent number: 6147356
    Abstract: An arrangement for the detection of disk-shaped objects in a cassette preferably for detecting the presence and the position of semiconductor wafers in a cassette is disclosed. Reliable detection of disk-shaped objects in cassettes is provided regardless of their orientation or any discontinuity in their edge region. This is done by an arrangement by detecting light reflected at the edges of the objects in that it has at least two linearly elongated rows of light sources which are arranged parallel to a family of planes predetermined by the cassette shelves and objects and which lie in a surface parallel to the edge areas to be detected. Further, an objective is arranged between the parallel linear light sources and by which a plurality of shelves is imaged simultaneously on the sensor unit.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: November 14, 2000
    Assignee: Jenoptik Aktiengesellschaft
    Inventors: Burkhard Hahn, Siegfried Belke, Steffen Loesch
  • Patent number: 6147424
    Abstract: A gas dynamic pressure bearing apparatus comprises a fixed shaft, a bearing member which is positioned opposite from the fixed shaft and at least a radial gas dynamic pressure bearing portion and a thrust gas dynamic pressure bearing portion which are positioned in a space between the fixed shaft and the bearing member. Dynamic pressure generating means are included for pressurizing gas in the radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion such that dynamic pressure action is generated. The bearing member is rotatably supported in relation to the fixed shaft by means of the pressurizing action such that rotational driving is performed by a predetermined motor. The radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion are structured such that gas is sealed from the space around the motor by a space sealing means and that gas flows from one side to other.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: November 14, 2000
    Assignee: Sankyo Seiki Mfg. Co., Ltd.
    Inventors: Masato Gomyo, Hideki Kanebako, Kazushi Miura, Masamichi Hayakawa
  • Patent number: 6145453
    Abstract: In order to carry out the method for controlling the firing rate of the combustion installation, the fire grate is equipped with a plurality of undergrate zones. In order to determine the control signal, the undergrate zone at the beginning of the main combustion zone is equipped with the corresponding measurement devices, namely a temperature sensor and a pressure sensor and the associated air supply line is equipped with an airflow measuring device. A further pressure sensor is provided in the furnace space so that the static pressure difference between the undergrate zone and the furnace space can be determined. The measured values from this measurement equipment are supplied to a central computer ZR which outputs, if necessary taking account of a flow coefficient .alpha.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: November 14, 2000
    Assignee: Martin GmbH fuer Unwelt- und Energietechnik
    Inventors: Johannes Martin, Peter Spichal
  • Patent number: 6145472
    Abstract: A distribution apparatus including a separate compartment to hold and dispense both anhydrous feed in pellet form and liquid. In the compartment to dispense the anhydrous feed in pellet form from a feeding reservoir the dry feed reaches an under placed volumetric feeder activated by a motor reducer operated in response to information contained on a microprocessor card actuating the operator's preset functions on the control board. The anhydrous food falls then into a fodder-trough comes out operated by a translation system and the movement of which causes the rotation of the apparatus which senses the presence of feed and includes a linear support holding a rod having an intermediate upward bend ending, with the contact detector of the feed presence.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: November 14, 2000
    Inventors: Emanuele Vittuari, Gabriele Vittuari, Maurizio Vittuari, Maria Rosa Vittuari
  • Patent number: 6145344
    Abstract: Proposed is an improvement in the VAD process for the preparation of a porous silica glass preform for double-core optical fibers by using three oxyhydrogen flame burners installed one above the other in a flame hydrolysis chamber in which a porous silica glass body consisting of the center core portion formed by the lowermost burner, side core portion formed by the middle burner and the cladding layer formed by the uppermost burner is gradually pulled up as it grows under rotation. Different from conventional procedures in which the extension of the nozzle axis of each of the burners intersects with the rotation axis of the growing body, the extension of the nozzle axis of the middle burner for the side core is displaced in a horizontal direction by a limited distance not to intersect nor to be in parallel with the rotation axis in the invention. By this means, an improvement is obtained in the uniformity of distribution of the refractive index in the side core which otherwise is remarkably disordered.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: November 14, 2000
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroshi Oyamada, Hiroyuki Koide, Goh Ogino, Hideo Hirasawa
  • Patent number: 6146467
    Abstract: A method of treating a semiconductor substrate by first oxidizing and reducing the semiconductor substrate by immersion in an aqueous solution of ammonium hydroxide and hydrogen peroxide, and then oxidizing the semiconductor substrate by immersion in an aqueous solution of ozone, nitric acid, hydrogen peroxide, or mixtures thereof, and then reducing the oxidized semiconductor substrate by immersing it in a first aqueous solution composed of a mixture of hydrofluoric acid and an organic acid or salt thereof, thereafter rinsing the reduced semiconductor substrate by immersion in a second aqueous solution composed of a mixture of hydrofluoric acid and an organic acid or salt thereof, and then reoxidizing the rinsed semiconductor substrate by immersing it in an aqueous solution of ozone, nitric acid, hydrogen peroxide or mixtures thereof.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: November 14, 2000
    Assignees: Mitsubishi Materials Silicon Corporation, Mitsubishi Materialc Corporation
    Inventors: Kazushige Takaishi, Ryoko Takada
  • Patent number: 6143293
    Abstract: A three-dimensional scaffold for tissue generation. Mechanical fasteners allow layered and volumetric scaffold sections, which may be pre-seeded with cells and/or growth factors, to be assembled into a heterogeneous generated tissue for implantation.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: November 7, 2000
    Assignees: Carnegie Mellon, University of Pittsburgh
    Inventors: Lee E. Weiss, Jay Wynn Calvert
  • Patent number: 6141884
    Abstract: A coordinate measurement device with an optical sensing system for non-contact sensing of structures and edges of measurement objects 4 comprises a CCD camera with an objective and CCD matrix on which the measurement object is imaged, wherein the distance between the objective and the plane of the matrix is adjustable for the purpose of adjusting the magnification. For purposes of adjusting magnification, an actuating element is provided at the sensing system, which actuating element can be connected with a driving element arranged at the coordinate measurement device. The magnification adjusting movement is carried out by the drive of the coordinate measurement device responsible for the assigned coordinates. Further, a circuit arrangement is provided for mixing electronically generated cross-line signals with the signals of the CCD matrix. A logic circuit is provided for linking the CCD elements representing the vertical and horizontal lines.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: November 7, 2000
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Nico Correns, Klaus Spring
  • Patent number: 6142047
    Abstract: Pilot device for a suspended cutting knife of a cutting head of an automatically controlled cutting machine for cutting fabric sheet material spread out on a cutting table in multiple layers. The cutting head is controlled by moving the cutting head along the X- and Y-axes and pivoting about a Z-axis for moving the knife tangently along a predetermined cutting path. The cutting knife is reciprocally movable along the Z-axis. The cutting head includes a device for guiding the unsuspended part of the cutting knife and a pressure foot rigidly connected to the pivotal cutting head. The suspended end of the knife is mounted in the cutting head so as to be freely rotatable around the Z-axis.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: November 7, 2000
    Assignee: Investronica, S.A.
    Inventors: Mario Andrada Galan, Juan Carlos Cristo, Bernardo Alcantara Perez
  • Patent number: 6143399
    Abstract: An aromatic polyimide film which is favorably employed for preparing a laminate of an aromatic polyimide film, an adhesive layer, and an electroconductive sheet is made of a polyimide prepared from a tetracarboxylic acid component containing at least 15 molar % of biphenyltetracarboxylic acid (or its dianhydride or ester) and an aromatic diamine component containing at least 5 molar % of phenylenediamine, has a specific edge tearing resistance of 11 to 22 kg/20 mm/10 .mu.m, and contains not more than 0.4 weight percent of a volatile component.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: November 7, 2000
    Assignee: Ube Industries, Ltd.
    Inventors: Takashi Kohno, Hideaki Okihara, Akinori Otani, Susumu Morishige
  • Patent number: 6142472
    Abstract: A corporate ladder game is provided which includes a playing surface having a plurality of corporate ladders. Each ladder has a plurality of corporate steps or rungs beginning with a first step designated as trainee located at the bottom of the ladder. The top step of each ladder is the position of chief executive officer. The top step is common to all the ladders. A means for indicating a position on each ladder and adapted to be moved from step to step of each ladder is provided for use in playing the game. A means for displaying a plurality of questions and answers used in the game to challenge each player's knowledge of corporate business matters is also provided. Each of the questions and answers has a business related question and a plurality of correct answers associated with each question. Each answer of the plurality of answers has a specific point value.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: November 7, 2000
    Inventor: Henry Kliebisch
  • Patent number: 6140783
    Abstract: In a method of controlling a disk driving motor having a rotor to which disks are loaded, an improvement comprises the step of, when the recording/reproducing is performed with respect to a disk, rotating the rotor in a reverse direction by one of a predetermined rotational angle and for a predetermined time during the period from the time the rotor stops rotating in a normal direction to the time the rotor is again driven in the normal direction. A control device for a disk driving motor in accordance with the method is also disclosed.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: October 31, 2000
    Assignee: Sankyo Seiki MFG. Co., Ltd.
    Inventor: Makoto Fujishima
  • Patent number: 6141232
    Abstract: A flyback converter including a transformer (T.sub.r), having a primary winding (W.sub.P) and having a secondary winding (W.sub.S), wherein the primary winding is connected in series with a controlled switch (T) and an actuation circuit (A) to an input direct voltage (U.sub.P), and the secondary winding is connected in series with a rectifier (D.sub.S) and, downstream of the secondary winding, a charging capacitor (C.sub.S); the actuation circuit (A) supplies start pulses of a fixed frequency for the switch, has a current sensor (R.sub.P) for the current through the primary winding. Coupled with the secondary winding is a first rectifying amplifier (K.sub.U) for comparing the output voltage (U.sub.S) with an adjustable voltage reference value (U.sub.RefU) and a second rectifying amplifier (K.sub.I) for comparing the output current (I.sub.S) with a adjustable current reference value (U.sub.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: October 31, 2000
    Assignee: Siemens AG Osterreich
    Inventors: Harald Weinmeier, Gunter Marka