Patents Assigned to National Science Council
  • Patent number: 6564670
    Abstract: A bicycle speed control apparatus for controlling a gear transmission mechanism via a drive cable connected to a bicycle is disclosed. The bicycle speed control apparatus includes a first seat connected to a bicycle handlebar and a second seat having a shaft used to connect to the first seat. A cylindrical sleeve member is used to connect to the drive cable and provided with first teeth, second teeth and third teeth in parallel. A first shifting lever and a second shifting lever are provided to pivot on the shaft. A first pawl and a second pawl are provided to movably mount on the first shifting lever and the second shifting lever, respectively. A resilient member is used to position on the shaft so as to engage the third teeth and disengage the first pawl from the first teeth and disengage the second pawl from the second teeth.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 20, 2003
    Assignee: National Science Council
    Inventors: Chan-Hua Feng, Jen-Ji Wang
  • Patent number: 6566117
    Abstract: The present invention describes (1) an immortal cell line derived from grouper and a method for establishing the cell line; (2) methods for mass producing and purifying aquatic viruses using the immortal cell line from grouper; (3) an anti-NNV antibody and a method for producing the anti-NNV antibody; and (4) a vaccine of NNV and a method for protecting fish against NNV infection. The present immortal cell line is derived from the grouper and is susceptible to the viral families of Birnaviridae such as Infectious Pancreatic Necrosis Virus (IPNV); Herpesviridae such as Eel Herpes Virus Formosa (EHVF); Reoviridae such as Hard Clam Reovirus (HCRV); and Nodaviridae such as Nervous Necrosis Virus (NNV).
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: May 20, 2003
    Assignee: National Science Council
    Inventor: Shau-Chi Chi
  • Patent number: 6558289
    Abstract: A hybrid vehicle having an engine, a starter, a motor/generator, a driving shaft, a compound planetary-gear device and a vehicle control device is disclosed. The vehicle control device is used for powering the hybrid vehicle by the motor/generator alone when a vehicle speed detected by a vehicle speed detection device is below a predetermined switching vehicle speed, and for starting the engine by the starter as well as turning off the motor/generator when the vehicle speed reached the predetermined switching vehicle speed, and for modulating an output driving torque by controlling a torque and a speed of the motor/generator.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: May 6, 2003
    Assignee: National Science Council
    Inventor: Cheng-Ta Chung
  • Patent number: 6549862
    Abstract: A vector network analyzer using sliding correlator techniques and multi-user detection techniques. The sliding correlator technique is based on the time domain sliding effect caused by a small clock frequency offset in the pseudo random code generators of a transmitter and a receiver. A time scaled version of the impulse response of the device under test can be obtained from the time domain slided pseudo random code signals by using a correlator. A multi-user detection method is introduced using two uncorrelated pseudo random codes. One of the uncorrelated pseudo random codes measures the D.U.T. and another code is a reference channel. These codes can be demodulated and despread with one receiver module. A Fast Fourier Transform of the measured impulse response is the frequency response of the measured signal.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: April 15, 2003
    Assignee: National Science Council
    Inventors: Chia-Chi Huang, Yuh-Maiw Jong, Jian-Hui Shen
  • Publication number: 20030059968
    Abstract: A method for producing a field emission display, especially for producing a carbon nanotube field emission display, is invented. The invention is to produce a field emission display via different control media, e.g. diode or triode field emission arrays. In addition, the invention discloses the procedure of controlling the field emission array of carbon nanotube stably by thin film transistor technology, and provides the method of producing the collimated carbon nanotube.
    Type: Application
    Filed: October 25, 2002
    Publication date: March 27, 2003
    Applicant: National Science Council
    Inventors: Huang-Chung Cheng, Fu-Gow Tarntair, Kuo-Ji Chen
  • Publication number: 20030057883
    Abstract: A light emitting element driver composed of two transistors, one ground resistor, one inductance and one capacitor is disclosed, and it can drive a LED with a supplied voltage as low as about 0.92 V.
    Type: Application
    Filed: October 16, 2001
    Publication date: March 27, 2003
    Applicant: Precision Instrument Development Center, National Science Council
    Inventors: Tai-Shan Liao, Ming-Li Chen, Ming Hung Huang, Ho-Lin Tsay
  • Patent number: 6535860
    Abstract: This invention proposes a novel nonlinear filter called adaptive weighted fuzzy mean (AWFM) filter which is capable of removing high density Gaussian impulse noises in polluted images. Via a single epoch, weights of the filter are departed according to a set of fuzzy rules, which are constructed by a proposed procedure. All the fuzzy rules in the knowledge base infer concurrently for input nature estimation and filter adaptation. Statistic analyses ensure that this AWFM filtering possesses robust and consistent performance even when images are thoroughly polluted. The AWFM filter is synthesized with generic LR fuzzy cells which adopts CMOS analog current mode technology to subject high speed, low power, and small circuit area objectives. Simulations show that parallel inferences realized by the generic LR fuzzy cells, each of which performs 20 M FLIPS (fuzzy logic inferences per second) promise that the synthesized AWFM filter is able to process up to 50 256×256 images per second.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: March 18, 2003
    Assignee: National Science Council
    Inventors: Yau-Hwang Kuo, Chao-Lieh Chen, Chang-Shing Lee
  • Patent number: 6525849
    Abstract: A probe of two-way optical component network analyzer. The probe includes an electrical circulator, an optical transmitter, an optical receiver, and an optical circulator. The electrical circulator is connected to a network analyzer, an optical transmitter and an optical receiver respectively. Electrical signals from the network analyzer are sent to the optical transmitter via the electrical circulator. The electrical circulator is capable of picking up electrical signals from the optical receiver and transmitting the electrical signals back to the network analyzer. Since electrical signals from different devices are separated inside the electrical circulator, electrical interference is prevented. The optical circular is coupled to the optical element, the optical transmitter and the optical receiver respectively. The optical circulator directs optical signals from the optical transmitter to the optical element and transfer optical signals from the optical element to the optical receiver.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: February 25, 2003
    Assignee: National Science Council
    Inventors: Shyh-Lin Tsao, Tai-Chi Liu
  • Patent number: 6518450
    Abstract: The present invention reveals a novel structure of guaiacoxypropanolamines shown in formula I: The composition comprising formula I acts as active intergant and pharmaceutical acceptable vehicle. The composition by perfect administration routes in the mammal when given potential &agr;/&bgr;-adrenergic blocking, is selective for emergency hypertension.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: February 11, 2003
    Assignee: National Science Council
    Inventor: Ing-Jun Chen
  • Patent number: 6517405
    Abstract: A process for forming a film on a substrate having a field emitter is disclosed. The substrate and field emitter are cleaned by hydrogen plasma to remove the impurities. Next, a silicon carbide film is selectively formed over said field emitter. A negative bias voltage of about 150 V to about 300 V is applied to substrate for increasing the nucleation sites of said silicon carbide film. Afterward, the negative bias voltage is stopped so as to grow a carbon-containing film from said silicon carbide film.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: February 11, 2003
    Assignee: National Science Council
    Inventors: Huang-Chung Cheng, Fu Gow Tarntair, Wei Kai Hong
  • Patent number: 6514814
    Abstract: A preparation for forming a thin film capacitor includes forming an amorphous ferroelectric film, such as barium strontium titanate [(Ba,Sr)TiO3] film, for use as an interface between a metal electrode and a polycrystalline ferroelectric film, such as (Ba,Sr) TiO3 film. The polycrystalline ferroelectric film serves as a dielectric layer of the thin film capacitor in view of the fact that the polycrystalline ferroelectric film has a high dielectric constant. The amorphous ferroelectric film serves as a buffer layer for inhibiting the leakage current of the thin film capacitor. The amorphous ferroelectric film is grown by sputtering and by introducing a working gas, such as argon, and a reactive gas, such as oxygen, into a reaction chamber in which a plasma is generated at room temperature.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: February 4, 2003
    Assignee: Precision Instrument Development Center, National Science Council
    Inventors: Cheng-Chung Jaing, Jyh-Shin Chen, Jen-Inn Chyi, Jeng-Jiing Sheu
  • Patent number: 6514035
    Abstract: A multiple-type pump has a simple construction and superior durability. The multiple-type pump has the capacity to perform air evacuation at high velocities in the atomospheric pressure zone to high vacuum zone range. The multiple-type pump includes: a screw type pump air transfer portion arranged at a downstream portion of the outer surface of a rotor and has a plurality of screw threads and screw grooves with a width of 5 mm or more; a turbo-molecular type pump air transfer portion arranged at an upstream portion and has a plurality of vanes and air transfer grooves; vanes having vane widths of 3 mm or less at the upstream edge, and formed so that the downstream edge is continuous with the upstream edge of the screw threads; a downstream edge of the base of the air transfer grooves formed so as to be continuous with the upstream edge of the base of the screw grooves.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: February 4, 2003
    Assignees: Kashiyama Kougyou Industry Co., Ltd., Precision Instrument Development Center National Science Council
    Inventors: Matsumi Iwane, Rong-Yuan Jou
  • Patent number: 6510738
    Abstract: The present invention discloses a vibration measuring device for measuring a vibration of an object. Such device includes a sensing body generating a dynamic information in response to the vibration, and a piezoelectric sensing layer disposed on the sensing body to construct a sensor and formed in a distributed mode to measure the dynamic information in a selected specific bandwidth. The present invention also discloses a vibration measuring method.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: January 28, 2003
    Assignee: National Science Council
    Inventors: Chih-Kung Lee, Chih-Ting Lin, Wen-Hsin Hsiao, Hsueh-Ching Shih
  • Patent number: 6503578
    Abstract: Zincselenide (ZnSe) thin films were grown on quartz glass and GaAs(100) substrates by continuous wave (CW) CO2 laser with ion beam assisted deposition. The ZnSe thin films are applied for multilayer anti-reflection coatings and blue light emitting devices. There are advantages to this technique over the Ion-Beam coating, MBE, MOCVD and PLD methods for fabricating layered semiconductors. It is cheaper and safer than Ion-Beam coating, MBE, MOCVD and others. It is cheaper and safer to heat the target locally by using a continuous wave laser so that contaminations and heat radiation are reduced. It is also cheaper and safer to avoid the splash of PLD.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: January 7, 2003
    Assignee: National Science Council
    Inventors: Pey-Shiun Yeh, Jyh-Shin Chen, Cheng-Chung Jaing, Hsiang-Ming Tseng, Long-Sheng Liao, Ming-Chih Lee
  • Patent number: 6503998
    Abstract: The present invention provides a lambda-shaped carbazole based chromophore, and a main-chain NLO polyurethane containing the same. The lambda-shaped structure reduces the plasticization to the main-chain polymers caused by the chromophore and increases temporal stability of the NLO coefficients of the main-chain NLO polyurethane. The NLO coefficients of the main-chain NLO polyurethane are stable because the efficiency of dipole alignment in electric field is increased due to the dipole thereof being perpendicular to the main chain of the polyurethane.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: January 7, 2003
    Assignee: National Science Council
    Inventors: Ging-Ho Hsiue, Wen-Jang Kuo, Ru-Jong Jeng
  • Patent number: 6504969
    Abstract: The present invention discloses an encoder and a decoder that are tunable, controllable, and have low amount of energy loss during encoding or decoding. The encoder comprises a 2×2 EO coupler, and an optical recirculating loop (waveguide) which comprises a semiconductor optic amplifier. The decoder comprises a 2×2 EO coupler, an optical recirculating loop (waveguide) which comprises a semiconductor optic amplifier, a light detector, and a bit determining device. Thus, the structures of the encoder and the decoder are simple, and can be integrated on a photonic integrated circuit so that the reliability is increased and the cost of production decreased.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: January 7, 2003
    Assignee: National Science Council
    Inventors: Shyh-Lin Tsao, Jingshown Wu, Che-Li Lin
  • Patent number: 6503374
    Abstract: A novel SBTN (SraBibTacNbdOx) thin film which exhibits satisfactory ferroelectric properties is disclosed, wherein a lies between 0.5 and 1, b lies between 2 and 2.7, c lies between 1 and 1.4, d lies between 0.6 and 1.1, and x lies between 8 and 10. The composition of Sr0.8Bi2.5Ta1.2Nb0.9Ox wherein x lies between 9 and 10 is preferred. The Sr0.8Bi2.5Ta1.2Nb0.9Ox thin film is formed by two-target off-axis RF magnetron sputtering at a temperature down to about 600° C. One target is formed of Sr0.8Bi2.2Ta1.2Nb0.8O9, and the other target is formed of Bi2O3.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: January 7, 2003
    Assignee: National Science Council
    Inventors: Tseung-Yuen Tseng, Ming Shiahn Tsai, Huei-Mei Tsai, Pang Lin
  • Patent number: 6495644
    Abstract: This invention provides a method for syntheses of new electroluminescent conjugated polymers modified with high electronegative heterocyclic groups (such as 1,3,4-oxadiazole-diyl, 1,3,4-thiadiazole-diyl, and 1,2,4-triazole-diyl). These electroluminescent polymers (homopolymers, statistical copolymers or block coplymers) are obtained by polymerization of bis(halomethyl) arenes modified with heterocyclic groups via the Wessling precursor route, Gilch side chain route, Wittig reaction or Wittig-Hornor reaction. By a proper selection of the monomers and their ratios in the polymerization, the emissive polymers (fully conjugated or limited conjugating length) covering the full visible range even extending to the near-IR range can be prepared. The polymeric light emitting diodes (PLED) with these materials as emissive layer or electron transport layer have high external quantum efficiency and can be used as indicators and displays for cellular phones, pagers, portable computer, wristwatch, toys, etc.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: December 17, 2002
    Assignee: National Science Council
    Inventors: Show-An Chen, Yuh-Zheng Lee
  • Patent number: 6495432
    Abstract: A method of reducing the boron-penetrating of effect in a CMOS transistor provides a silicon substrate, which comprises an isolating area, an active area and a gate oxide layer formed on the silicon substrate in the active layer. A polysilicon layer is then deposited on the silicon substrate. Next, boron ions (B+) are doped into the polysilicon layer. Next, a gate photoresist with a predetermined gate pattern is formed on the polysilicon layer. The polysilicon not covered by the gate photoresist is then etched to form a polysilicon gate. The gate photoresist is used as a mask to dope boron difluoride ions (BF2+) into the silicon substrate. Finally, after removing the gate photoresist, a tempering procedure is performed to form a shallow junction area of a source/drain region on the silicon substrate.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: December 17, 2002
    Assignee: National Science Council
    Inventors: Chi-Chun Chen, Horng-Chih Lin, Chun-Yen Chang, Tiao-Yuan Huang
  • Patent number: 6493070
    Abstract: This invention discloses an in-situ monitoring method on the layer uniformity of sputter coatings in a vacuum chamber based on deconvolution of measuring plasma emission spectra. The method of the present invention started from an Ar-normalized Sr intensity distribution derived from deconvoluting the plasma spectra by using Abel inversion method, which was considered as the spatial distribution of the sputtering mass of the source target. The thickness profile on the substrate was then calculated with n-th power of cosine law model. It was observed good agreement between the calculated thickness profile based on spectroscopic measurement and experimental observation. The film uniformity for the same sputter conditions can be monitored by comparing in-situ measurement of Ar-normalized Sr intensity distribution with the standard curve, or by directly calculating thickness distribution on the substrates.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: December 10, 2002
    Assignee: Precision Instrument Development Center, National Science Council
    Inventors: Cheng-Chung Jaing, Chuen-Horng Tsai, Jyh-Shin Chen, Ming-Hwu Cheng, Ho-Yen Hsiao, Py-Shiun Yeh, Jiann-Shiun Kao