Abstract: A turbo encoded H-ARQ system and an error detection method are disclosed, and more particularly, a turbo encoded H-ARQ system and an error detection method that lower an undetected error probability and frame error rates by increasing the degree of an equivalent CRC generator polynomial by using a modified trellis termination. It has been made possible to obtain an equivalent CRC generator polynomial having higher degree than the related art CRC generator polynomial by employing a modified trellis termination. This achieved a lower undetected error probability than the related art undetected error probability by using an equivalent CRC generator polynomial having higher degree. This also achieved lower frame error rates, when the same number of overhead bits are used, due to the lower undetected error probability.
Type:
Grant
Filed:
December 11, 2002
Date of Patent:
June 19, 2007
Assignee:
Dept. of Management: Seoul National University
Inventors:
Jae Hong Lee, Tae Min Kim, Hyun Dong Shin
Abstract: An electret condenser microphone includes a case, a diaphragm electrically connected to the case, a fixed electrode plate disposed opposing the diaphragm with a spacer interposed therebetween, the fixed electrode plate being formed of a metal plate coated with a polymer film on which an electret is formed, an insulating ring for insulating the fixed electrode plate from the case, a printed circuit board (PCB) defining a back chamber with the fixed electrode plate, and an integrated base for supporting the fixed electrode plate and the PCB and electrically connecting the fixed electrode plate to the circuit component embedded in the PCB through a connecting terminal. The integrated base includes a hollow cylindrical insulating body and metal plating layers formed on the top and bottom of the insulating body. Outer diameters of the metal plating layers are less than the insulating body and are electrically connected by a conductor.
Abstract: Disclosed is a flexible hose for a vacuum cleaner and a fabricating method thereof. The fabrication method includes the steps of: extruding a primary extrusion molding band 13 having a larger size than a size of a finished state while embedding an electric wire 1 in the primary extrusion molding band 13 at a first extruder 12; molding a multi-extrusion molding band 10 in the size of the finished state at a sizing mold 14; and winding the multi-extrusion molding band 10 at a predetermined angle at a bonder and bonding a bonding portion 2 of the electric embedding portion 3 with a bonding end 4 of the semicircular portions 5 positioned on both sides of the multi-extrusion molding band 10 by using adhesive 8.
Abstract: There is provided a removable optical assembly for a helmet. The removable optical assembly includes an optical device retention system and an optical device attachment assembly. The optical device retention system is adapted to couple to the helmet and has an optical device receiving portion. The optical device attachment assembly has a latching mechanism. The latching mechanism is adapted to releasably latch the optical device attachment assembly to the optical device receiving portion. The optical device retention system further has a deflection flange adjacent the optical device receiving portion for deflecting extraneous elements over the optical device receiving portion and the latching mechanism.
Abstract: A device for measuring torsional distortion of a body comprises first and second clip portions each having a central part and two legs depending from the central part, each leg having adjacent the free end thereof a groove or projection for engaging a respective projection or groove (14) provided in the body (16) to mount the clip portion the body rotationally fastened therewith. A bridge interconnects the clip portion. The bridge is less stiff than the clip portions whereby relative rotational displacement of the clip portions caused by torsional distortion of the body will cause proportional deflection of the bridge. Means, for example a SAW device (15), are provided for measuring the deflection of the bridge to provide an indication of the torsional distortion which produces the deflection of the bridge. Also (20) for the interior all of a hollow body.
Type:
Grant
Filed:
September 16, 2003
Date of Patent:
May 29, 2007
Assignee:
Transense Technologies PLC
Inventors:
Raymond David Lohr, David Daniel George Vile, Mark Lee
Abstract: A system and method for measuring circuits on an integrated circuit substrate includes a measurement circuit formed on the integrated circuit substrate that measures at least one characteristic of an integrated circuit. The measurement circuit has a power transfer device including a power transfer component, which receives energy from a source where the source does not make physical contact with the integrated circuit substrate to transfer power to the measurement circuit. Measurements are taken to provide feedback for in-situ adjustments to circuit parameters and responses.
Type:
Grant
Filed:
January 30, 2004
Date of Patent:
May 8, 2007
Assignee:
International Business Machines Corporation
Abstract: An on-chip temperature control system includes a temperature sensor, which monitors a temperature of a chip, and a hysteresis comparator which checks whether the temperature is in an acceptable range. A reference adjustment circuit is responsive to the hysteresis comparator to adjust an on-chip voltage to control the temperature locally by adjusting a local supply voltage, if the temperature is out of range.
Type:
Grant
Filed:
July 6, 2004
Date of Patent:
May 8, 2007
Assignee:
International Business Machines Corporation
Inventors:
Howard Hao Chen, William J. Ferrante, Louis L. Hsu, Carl J. Radens
Abstract: A reactive-adsorptive protective material having an activated carbon adsorbent for adsorbing chemical impurities, wherein nanoparticular entities are loaded into and onto a surface of said activated carbon adsorbent to further impart chemically reactive and biocidal properties onto the activated carbon for providing protection against chemical and biological agents in the atmosphere. Advantageously, a superior reactive-adsorptive material is provided having the ability to kill microorganisms in addition to the ability to neutralize and decompose chemical substances, while at the same time not diminishing the adsorptive/reactive capabilities and effectiveness of either the substrate carbon or the loaded nanoparticular entities used.
Type:
Grant
Filed:
February 24, 2003
Date of Patent:
May 1, 2007
Assignee:
Gentex Corporation
Inventors:
Holly C. Axtell, Scott M. Hartley, Sallavanti Robert A.
Abstract: A pinwheel includes a first axis, which supports a hub. A plurality of protrusions is connected to the hub and radially extending from the hub. Candy items are attached to a plurality of the protrusions. The candy items may include a plurality of different flavors or colors to concurrently provide a user with a variety of flavors to taste.
Abstract: A surface acoustic wave (SAW) sensor includes a transducer (240 provided on a substrate (23), wherein the transducer (24) is oriented on the substrate (23) so that the direction of acoustic wave propagation is such that the variation of sensor output with temperature, associated with the variation of the substrate third-elastic constants with temperature, substantially equal but opposite to the sum total of the variation of sensor output with temperature associated with the substrate linear temperature coefficient of expansion and with the variations with temperature of the substrate non-zero third order elastic constants, the substrate first-order elastic constants and the substrate density. The effect of temperature variation on sensor output is thereby minimized. This is achieved with a 35-degree arrangement or with reflective gratings inclined at an angle of 3.1 degrees to normal. Additionally, a robust package with a dish is given. Particular applications include the measurement of torque.
Abstract: A weldable workpiece prepared by depositing on a surface of the workpiece, an absorber dye possessing strong absorption and a high extinction coefficient. The dye is deposited at a uniform density and thereby has the capacity to convert inbound radiant energy over about 0.1 J per square millimeter into thermal energy via vibronic relaxation and exothermic decomposition. In optical applications, the workpiece forms welds of high photopic and optical transmission. A method for preprocessing the workpiece describes steps for selecting polymers, dyes and vehicles.
Abstract: A random access memory includes a memory cell having an access device. The access device is switched on or off in accordance with a signal on a wordline to conduct a memory operation through the access device. A logic circuit is coupled to the wordline to delay or gate the wordline signal until an enable signal has arrived at the logic circuit. The access device improves stability and eliminates early read problems.
Type:
Grant
Filed:
November 10, 2004
Date of Patent:
March 20, 2007
Assignee:
International Business Machines Corporation
Abstract: A system for interrogating a tire sensor. The disclosure provides a wheel (2) including a sensor (14) and an electrical conductor (18, 20) extending about a rotational axis (4) of the wheel (2), the sensor (14) being electrically coupled to said electrical conductor (18, 20). Communication between the sensor and a remote interrogating apparatus is thereby improved.
Type:
Grant
Filed:
May 20, 2003
Date of Patent:
March 6, 2007
Assignee:
Transense Technologies PLC
Inventors:
John Peter Beckley, Victor Alexandrovich Kalinin
Abstract: A composition containing psyllium fiber and xylitol. The composition is in one of powered, liquid or product form. In powdered form the composition is used for producing confectionery products, beverages, baked good products, bakery products, snack bars and similar foodstuff products. In product form, the composition is used to produce confectionery products, baked good products, bakery products, snack bars and similar foodstuff products. The fiber is preferably psyllium fiber. However, the psyllium fiber may be substituted with fruit fiber and derivatives including pectin; seaweed gums and derivatives, including carrageenan, agar and alginates; cellulose and derivatives; cereal grain fibers, including corn, wheat, oat, rice, barley and soy; fructooligosaccharides and its derivatives; seed gums, including guar and locust bean; tree gums, including karaya, tragacanth and acacia; xantham gum; vegetable fiber, including pea and legumes; and potato fiber.
Abstract: A wheel nut assembly includes a stud (1), a main wheel nut (4) mountable on threads (3) provided on the stud, and a retaining nut (6) engageable with threads (5) provided on the stud to prevent accidental loosening of the wheel nut (4). The threads of the wheel nut (4) and the threads for the retaining nut (6) are of opposite hand. A cap (11) is slidably mounted on the retaining nut (6) and biased into a first position by a spring (16). The cap (11) includes multi-hexagonal profiles (12, 14) for engaging hexagonal profiles (13, 15) provided on the retaining nut (6) and on the main wheel nut (4). Accordingly, in the first position, the retaining nut (6) and the main wheel nut (4) are rotationally locked to each other and because of the opposite hand of the respective threads it is not possible to remove the retaining nut. To release the retaining nut (6), the cap (11) is grasped and pulled to the limit permitted by the spring (16) to permit rotation of the retaining nut (6) and removal thereof.
Type:
Grant
Filed:
October 4, 2001
Date of Patent:
February 6, 2007
Assignee:
Wheelsure Technologies Limited
Inventors:
John Sydney Lees, David Daniel George Vile
Abstract: A random access memory includes a logic circuit coupled to a power supply of a column having a memory cell. The logic circuit adjusts the supply voltage for the memory cell in the column in accordance with a control signal. A control circuit is coupled to the logic circuit, which generates the control signal in accordance with an operation type and whether the column is selected, such that the logic circuit selects the supply voltage in accordance with the control signal. The cell may include high mobility devices to improve performance.
Type:
Grant
Filed:
May 13, 2005
Date of Patent:
January 30, 2007
Assignee:
International Business Machines Corporation