Patents Represented by Attorney, Agent or Law Firm Daniel G. Vivarelli
  • Patent number: 6806190
    Abstract: In order to prevent silicides from getting under side walls when the silicides are formed over MOSFET formed over an SOI substrate, trenches are defined in the SOI substrate and side walls are formed over the trenches, whereby the silicides are blocked so as not to get under a gate insulator with a lower portion of each side wall as a structure convex in a downward direction of the substrate. Thus, an increase in gate withstand voltage, a decrease in gate leakage current and control on a short channel effect are achieved.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: October 19, 2004
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Liu Guo Lin
  • Patent number: 6806538
    Abstract: The present invention aims to provide a field effect transistor which inhibits an aggregation of silicon atoms attendant on heat treatment and has stable source/drain shapes. The field effect transistor according to the present invention is manufactured using a substrate on which a silicon layer, an buried oxide film (BOX film) and an SOI layer are stacked in order. The field effect transistor has an element isolation layer formed in the SOI layer and further includes visored portions provided so as to cover angular portions on the main surface side of an activation layer defined by the element isolation layer.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: October 19, 2004
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Toshiyuki Nakamura
  • Patent number: 6799161
    Abstract: A speech coding apparatus having a speech input unit for receiving input speech, a speech coding rate selector for selecting an appropriate speech coding rate according to the power of the input speech, a speech analyzer for processing the input speech to estimate a transfer function of the speaker's oral cavity, and a speech coding unit forming a synthesis filter based on the transfer function of the oral cavity. The speech coding unit also codes an excitation signal of the synthesis filter on the basis of an estimation result supplied by the speech analyzer. A gain suppressor interposed between the speech input unit and the speech coding unit suppresses the gain of a signal supplied from the speech input unit to the speech coding unit during an unvoiced period according to information from the speech coding rate selector.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: September 28, 2004
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Atsushi Yokoyama
  • Patent number: 6795232
    Abstract: A wavelength converter implements high speed, high efficiency, low noise wavelength conversion without performing high voltage poling of a crystal, and enables switching and modulation of converted light in response to an electric field. A KLTN crystal, includes a deposited-gold electrode within its incidence plane, and is connected to a DC power supply via a copper wire. The crystal material is composed of KTa1-xNbxO3 and/or K1-yLiyTa1-xNbxO3. A polarizer controls the polarization of the fundamental wave in the direction parallel to the electric field, and launches it into the electrode of the KLTN crystal. The KLTN crystal, rotating on an axis in the direction of the electric field, launches only part of the generated SHG light with the same polarization direction as that of the incident light into a photo multiplier tube through a polarizer.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: September 21, 2004
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kazuo Fujiura, Shogo Yagi, Tadayuki Imai, Koji Enbutsu, Masahiro Sasaura, Takashi Kurihara, Makoto Abe, Seiji Toyoda, Eishi Kubota
  • Patent number: 6784497
    Abstract: A semiconductor device according to the invention of the present application comprises a first semiconductor layer, a first insulating layer formed over the first semiconductor layer, a second semiconductor layer formed over the insulating layer, a protective element formed over the second semiconductor layer, an electrode pad, and a plurality of series-connected through holes for connecting the electrode pad and the protective element. Thus, a surge voltage applied across a diffused resistor can be lightened and hence an oxide film placed below the diffused resistor can be prevented from destruction.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: August 31, 2004
    Assignee: Oki Electric Industry, Co., Ltd.
    Inventor: Masafumi Nagaya
  • Patent number: 6778593
    Abstract: A demodulator device of the present invention receives a propagation signal including a plurality of channel signals multiplexed with each other, that is modulated by using an orthogonal code sequence, through different propagation paths. The demodulator device includes propagation path estimators for performing operations including propagation path estimation and demodulates the received propagation signal by subjecting outputs of the propagation path estimators to multi-path combination. More specifically, for information obtained by correlators corresponding to operations, the demodulator device performs the multi-path combination by combining results of multiplications of the outputs of the propagation path estimators for correlation values and then separate the plurality of channels.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: August 17, 2004
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Koichi Taniguchi
  • Patent number: 6760436
    Abstract: An echo canceling apparatus includes a long-response echo canceler that removes an echo of an incoming signal from an outgoing signal by operating on a most recent segment of the incoming signal, stored in a tapped delay unit. The apparatus has a control unit that calculates a cancellation characteristic for each tap of the tapped delay unit. The cancellation characteristics are used to select a subset of taps corresponding to a changing component of the echo, the subset being empty if there is no changing component. A short-response echo canceler, operating on the outputs of the selected taps, cancels the changing component of the echo left uncanceled by the long-response echo canceler. Alternatively, the step gain of the selected taps is increased. The short-response echo canceler is preferably disabled in the double-talk state.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: July 6, 2004
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Masashi Takada
  • Patent number: 6757115
    Abstract: A magnetic transfer apparatus writing a servo signal by magnetically transferring to a magnetic recording medium, and an optical type inspection apparatus for optically inspecting scratch or foreign matter on the magnetic recording medium wherein a characteristic grease is used for these apparatuses are disclosed. Grease used in the magnetic transfer apparatus or the optical type inspection apparatus generates sulfur type gas in amount less than or equal to 0.5 ppb.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: June 29, 2004
    Assignees: Matsushita Electric Industrial Co., Ltd., Fuji Electric Co., Ltd.
    Inventors: Masaki Kondo, Mitsuo Kobayashi, Eiichi Fujisawa
  • Patent number: 6748267
    Abstract: A heart therapy device includes a heart rate detector unit for detecting a heart rate, an evaluation and control unit adaptable to evaluate a measured heart rate and output a therapy control signal, and a therapy unit coupled to the output of the evaluation and control means for realizing at least one therapy having a predetermined therapy. The evaluation and control unit includes a three-area memory for storing heart rate value ranges, a heart rate discriminator for allocating a measured heart rate and outputting a first, second or third discriminator output signal, a stability evaluation unit for outputting a stability output signal and evaluating heart rate stability over a predetermined period of time in response to the output of the second heart rate discriminator output signal, and a logical processing unit for processing the second discriminator output.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: June 8, 2004
    Assignee: Biotronik Mess-und Therapiegeraete GmbH & Co.
    Inventors: Mrigank Shekhar, Tran Thong, Indra B. Nigam
  • Patent number: 6748427
    Abstract: A broadcast material delivery architecture provides coordinated inclusion of supplemental materials with delivered broadcast material. A broadcaster broadcasts the broadcast materials to a plurality of users, the broadcast material being divided into a plurality of segments. Also broadcast is program data associated with the plurality of segments. A user terminal receives the broadcast material from the broadcaster and retrieving supplemental materials related to said plurality of segments of said broadcast material. To retrieve the supplemental materials, the program data are provided to a data server, which provides parameters for the supplemental materials to the user terminal. The user terminal uses the parameters to retrieve supplemental materials from one or more databases. The user terminal plays the supplemental materials in conjunction with the broadcast material.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: June 8, 2004
    Assignee: Susquehanna, Media Co.
    Inventors: Joseph Drosset, Jeffrey A. Hanrahan, Louis J. Keeble, Edwin C. Price, Gregory B. Mackintosh
  • Patent number: 6738975
    Abstract: In general, in one aspect, the invention provides a modular application collaborator for providing inter-operability between applications including a plurality of connectors for communicating with a like plurality of applications and an interchange server. The interchange server includes an application collaboration module and service module. The service module transfers messages between connectors and the application collaboration module. The application collaboration defines the inter-operability between two or more applications. The interchange server service module includes a transaction service and an error service. Transactions are executed in the application collaboration module and the transaction service records each action and a compensating action for undoing an associated action.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: May 18, 2004
    Assignee: Software AG, Inc.
    Inventors: Hon-Siew Yee, John Timothy Taylor
  • Patent number: 6728410
    Abstract: A picture coder divides a frame of coded picture data into a critical segment including information needed for decoding other segments in the frame, and at least one non-critical segment including only information needed for its own decoding. The critical segment is made smaller than the non-critical segments, by controlling the segment size directly, for example, or by controlling a quantization step size or a forced intra-coding rate. The small size reduces the probability of the loss of critical information during packet transmission of the coded data, when each segment is transmitted as a separate packet. Alternatively, the size of all segments is reduced when conditions on the communication path indicate a high probability of transmission errors.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: April 27, 2004
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Shigeru Fukunaga
  • Patent number: 6728957
    Abstract: In a system in which a plurality of programs each enter an execution wait state at a given time point and they are sequentially executed in the order of their cutoff times, the execution completion time point of a program undergoing estimation of execution completion thereof is estimated based upon the average value of intervals representing the lengths of time to elapse before an execution request for a program present in the system arrives, the average value of the execution times of the individual programs in the system, the lengths of time to elapse between the execution request arrival time points and the cutoff times, the execution time of the program undergoing estimation of execution completion thereof and the execution request arrival time point of the program undergoing estimation of the execution completion thereof, thus achieving a structure that enables estimation of the response time of a program without necessitating a lengthy process such as an actual or simulated execution of the program.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: April 27, 2004
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Hidenori Nakazato
  • Patent number: 6721113
    Abstract: A positioning mark of a soft magnetic film is provided at the center of a master disk, and a beam from a light source irradiates the position of the mark. When a optical reception sensor using a CCD recognizes the mark, the recognizability of the positioning mark can be improved by using a wavelength selective filter or a laser as the light source. Additionally, the recognizability of the positioning mark can be improved by forming the positioning mark using a material other than a soft magnetic material.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: April 13, 2004
    Assignees: Matsushita Electric Industrial Co., Ltd., Fuji Electric Co., Ltd.
    Inventors: Nobuhide Matsuda, Akira Saito
  • Patent number: 6701355
    Abstract: An insertion and encoder system monitors broadcasts from a first broadcasting system to determine the presence of segments that can be substituted in a second broadcast. In one embodiment, the system and method determines whether the first segment from the first broadcast had been sold for the second broadcasting system. In this example embodiment, if the first segment had not been sold for the second broadcasting system, it is substituted for a second segment. The system and method accesses an inventory of sold substitution segments and substitutes a sold segment for the unsold segment in real time. In one embodiment, sold advertisement segments are substituted for unsold advertisement segments that are broadcast to a wide audience over the Internet. Segments are selected in accordance with predefined criteria that can include user demographics and/or personal preferences.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: March 2, 2004
    Assignee: Susquehanna Media Co.
    Inventors: Gary A. Brandt, Donald R. Largen, Wayne F. Cummings
  • Patent number: 6666319
    Abstract: A device for monitoring the presence. of steps and pallets of an escalator or moving walkway, such that missing steps or pallets are immediately detected, so that the drive will be stopped before the missing or defective part reaches the visible area of the escalator or moving walkway.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: December 23, 2003
    Assignee: Kone Corporation
    Inventors: Ludwig Balzer-Apke, Andreas Tautz, Christian Maletzki
  • Patent number: D494685
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: August 17, 2004
    Assignee: Hans Rinninger u. Sohn GmbH & Co. Betonwarenfabrik
    Inventor: Hans Rinninger