Patents Represented by Attorney Mattingly, Stanger, Malur & Brundidge, P.C.
  • Patent number: 7499688
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: March 3, 2009
    Assignees: Renesas Technology Corp., TTPOM Limited
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Astel Henshaw
  • Patent number: 7499689
    Abstract: In a communication semiconductor integrated circuit device using offset PLL architectures and including an oscillator circuit and a frequency divider circuit generating an intermediate frequency signal, the oscillator circuit includes an oscillator, a programmable frequency divider which frequency-divides the oscillation signal in accordance with frequency division information, a phase comparator detecting a phase difference between an output signal of the programmable frequency divider and a reference signal, and a frequency control unit for outputting a signal indicative of the phase difference and controlling the oscillation frequency of the oscillator, wherein a frequency division ratio generator circuit generates an integer part I and a fraction part F/G based on band information concerning the use frequency band and mode information along with channel information and for producing the frequency division ratio information to thereby give it to the programmable frequency divider.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: March 3, 2009
    Assignees: Renesas Technology Corp., TTPCOM Limited
    Inventors: Toshiya Uozumi, Yasuyuki Kimura, Hirotaka Osawa, Satoru Yamamoto, Robert Astel Henshaw
  • Patent number: 7499723
    Abstract: An inter-base station synchronization system is constructed without using any receiver for detecting a frame period error at a zone boundary between leaky coaxial cables, and without using any exclusive line or dedicated radio waves for use in transmitting the frame period error information from this receiver to base stations. This system has a plurality of base stations provided in certain intervals, leaky coaxial cables laid down between the base stations, and one, or a plurality of, mobile station that measure a time delay difference of received signals from adjacent ones of the base stations while the mobile stations move along zone boundaries between leaky coaxial cables, and that transmit the delay time difference information through the leaky coaxial cables to at least either one of the two adjacent base stations.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: March 3, 2009
    Assignee: Hitachi Kokusai Electric Inc.
    Inventor: Kinichi Higure
  • Patent number: 7496429
    Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilities and an operation control system. The operation control system transfers information on operating status and secular characteristic changes of apparatus from power generating facilities or information from operators of selected power generating facilities. The level of a failure of a power generating facility which has a failure is evaluated and repairing information (e.g. recovery procedures, processes, required parts, inventory of the parts, possible failure causes, etc.) created from repairing information prepared in advance for each evaluation condition. The repairing information is then sent to the operation supporting section of the power generating facility.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: February 24, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda
  • Patent number: 7496679
    Abstract: A packet communication apparatus capable of performing packet conversion at high speed for packet transfer or packet transmission/reception has: a packet conversion unit for performing packet conversion for a reception packet received at a plurality of communication units and for a transmission packet to be transmitted from the plurality of communication units; and a transfer control unit for outputting, when the reception packet received by the communication unit is judged as a the transfer packet, the reception packet to a transfer buffer, for outputting the transmission packet to the communication unit corresponding to the communication object at a destination of the transmission packet generated by a packet generating and processing unit, and for outputting the transfer packet to the communication unit corresponding to the communication object at a destination of the transfer packet stored in the transfer buffer.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: February 24, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Hiroshi Arita, Yasuhiro Nakatsuka, Yasuwo Watanabe, Yoshihiro Tanaka, Kenji Furuhashi
  • Patent number: 7496212
    Abstract: A change detecting method and apparatus constituted by an input portion for inputting image data obtained by imaging apparatus, a processing unit for processing the image data inputted from the input portion, and a storage for storing the image data. The processing unit has an image data change detecting portion, a monitoring information generating/transmitting portion. The storage has a monitoring schedule table. The image data change detecting portion reads the image data from the storage based on the monitoring schedule table, and detects a change in image data from the image data. The monitoring information generating/transmitting portion generates monitoring information based on a result of the detected change and outputs the monitoring information.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: February 24, 2009
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tsuyoshi Kawabe, Hirotada Ueda
  • Patent number: 7494036
    Abstract: Even when a transient decrease has arisen in a battery voltage VBAT of a battery pack at startup of a motor that drives a flywheel, a power terminal Vcc and a reset terminal RES (or an input terminal IN of a reset IC) of a microcomputer are replenished with a normal voltage by the voltage accumulated by a capacitor of the backup power circuit, and hence a controller can maintain normal operation without involvement of faulty operation. As a result, even the battery pack whose battery has a smaller amount of remaining energy can be effectively utilized as the power source of an electric driving machine.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: February 24, 2009
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yukihiro Shima, Masahiro Inaniwa, Hiroyuki Oda, Takashi Ueda, Yoshihiro Nakano
  • Patent number: 7496383
    Abstract: A neighbor sector is automatically set to effectively perform soft handover. A base station corresponding to a first sector to communicate with a wireless terminal and a base station corresponding to a second sector to start communication with the wireless terminal due to movement of the wireless terminal or the like transmit a terminal identifier acquired from the wireless terminal, a time and a sector identifier to a base station control part (control part in the following). The control part successively stores the received sector identifier into a table correspondingly to the terminal identifier and the time received from the base station. Besides, the control part refers to the table, judges whether different sector identifiers are stored in a previously determined time range, regards a pair of the two different sector identifiers as neighbor sector candidates and counts the number of times they are regarded as the neighbor sector candidates.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: February 24, 2009
    Assignee: Hitachi Communication Technologies, Ltd.
    Inventors: Ryosuke Kurata, Masaaki Yano, Daiho Kasai, Kenji Yamazaki
  • Patent number: 7493466
    Abstract: A first storage controller has a multilayer memory hierarchy constructed by LDEV (logical device) connected from LUN, and VDEV (virtual device) connected to the lower order of the LDEV. At least one of the VDEVs is constructed by mapping the memory resources arranged in external storage controllers. The functions of a stripe, RAID, etc. can be added in the mapping. Various kinds of functions (remote copy, variable volume function, etc.) applicable to the normal internal volume can be also used in a virtual internal volume by using the external memory resource as the virtual internal memory resource so that the degree of freedom of utilization is raised.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: February 17, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Keishi Tamura, Shinichi Nakayama, Katsuhiro Uchiumi
  • Patent number: 7493092
    Abstract: In a MIMO wireless transceiver, priority control that judges priority of transmit data and a transmission mode table are provided to control an option as to which transmission system SDM or STBC is selected, coding rate and modulation method based on a transmission mode for a transmission destination that is determined by priority of transmission data and status of a communication matrix at the time of data transmission. With such arrangement, a wireless communication system composed of the MIMO wireless transceiver can control coding, MIMO signal processing and modulation methods according to priority of transmit data. More specifically, it is possible to ensure transmission of data having higher priority and improve throughput in total when a plurality of types of data are transmitted.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: February 17, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masaaki Shida, Tatemi Ido
  • Patent number: 7493098
    Abstract: In a communication semiconductor integrated circuit, a capacitance included in a filter on the output side of a mixer circuit is reduced without requiring the cutoff frequency of the filter to be changed. A Gilbert cell circuit is used as a mixer circuit which combines, for downconversion, a reception signal and a local oscillator signal. A low-pass filter for removing unwanted waves from output is composed of load resistors of upper stage differential transistors and a capacitive element provided between differential output terminals. The resistances of the load resistors are increased, and a current circuit for applying a current to emitters or collectors of the upper stage differential transistors is provided, so that a current to make up for a decrease in current amount attributable to the increase in load resistance can be applied from the current circuit to lower stage differential transistors.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: February 17, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Yasunobu Yoshizaki, Tetsuya Wakuda
  • Patent number: 7486142
    Abstract: The present invention is directed to compensate electric properties of an RF power module depending on changes with time, temperature dependency, variations, and the like of grounded emitter current amplification factor of an HBT. A compound semiconductor integrated circuit supplies reference current of a reference HBT depending on hFE of an HBT to an input terminal of a first current mirror of a bias circuit of a silicon semiconductor integrated circuit. The base of an output HBT of the compound semiconductor integrated circuit is biased with bias current which increases in response to decrease in hFE of the HBT from an output of the first current mirror of the silicon semiconductor integrated circuit.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: February 3, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Hirokazu Tsurumaki, Hiroyuki Nagai, Tomio Furuya, Yoshiaki Harasawa, Makoto Tabei
  • Patent number: 7487298
    Abstract: A disk array device is equipped with a plurality of input/output channels that receive data input/output requests from an external device, a plurality of cache memories provided for the corresponding respective input/output channels, each of the cache memories connected to each of the corresponding respective input/output channels, a disk drive device, a disk control module that performs data input/output to and from the disk drive device, and a communication module that communicatively connects the input/output channels with the disk control module. The disk array device also includes a consistency maintaining module that can perform a consistency maintaining processing to maintain consistency of data stored in each of the cache memories. According to the content of the data input/output request received from the external device, an execution order of a response processing to respond to the external device according to the data input/output request and the consistency maintaining processing is controlled.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: February 3, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Seiji Kaneko, Hiroki Kanai
  • Patent number: 7487162
    Abstract: There is provided a technique capable of executing a predetermined processing while continuing a database processing. Firstly, the database to be operated is switched from the main database to a duplicate database. The predetermined processing is executed to the main database which becomes the non-operation mode by the switching. Next, a database access request is distributed to the duplicate database which becomes the operation mode by the switching, thereby performing the database processing. Update information indicating the content of the update processing performed to the duplicate database is output. The output update information is reflected on the main data base for which the predetermined processing has been executed. After this, the database to be operated is switched from the duplicate database to the main database.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: February 3, 2009
    Assignees: Hitachi, Ltd., Hitachi Software Engineering Co., Ltd.
    Inventors: Kenichi Kitamura, Mitsuo Miyazaki, Kota Yamaguchi, Hiroshi Yamakawa
  • Patent number: 7484071
    Abstract: In a system where a storage device is coupled to a computer, a storage area in the storage device is efficiently allocated to the computer. The system comprises a virtualization apparatus to be coupled to the virtualization apparatus. The virtualization apparatus, responding to a request from the computer, issues a notice to the effect that a predetermined size of virtual volume has been allocated to the computer. The virtualization apparatus, upon receiving an access request from the computer to the virtual volume, allocates storage areas existing in a plurality of storage devices to the virtual volume, converts the access request received from the computer to an access request addressed to a storage device having the storage devices allocated to the virtual volume, and transmits the converted access request to the storage device.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: January 27, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Kazuyoshi Serizawa, Shinji Morita, Naoko Iwami
  • Patent number: 7482808
    Abstract: A cryostat is formed into a donut form, where a cylindrical or a square concave is formed in the center of the cryostat of the superconductive magnet apparatus for an open type MRI apparatus, and the cryo-compressor is disposed in the concave.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: January 27, 2009
    Assignees: Hitachi, Ltd., Hitachi Medical Corporation
    Inventors: Yasunori Koga, Hiroyuki Watanabe
  • Patent number: 7482963
    Abstract: A drive circuit for a display panel has a D/A conversion circuit which has a unit region serving as a circuit element that is formed in an IC. Contact pads are provided at both ends in a rectangular guard ring region and at the center thereof. Further, a plurality of MOS switch transistors are arranged and formed respectively between these contact pads. The contact pads arranged at both ends in the unit region, respectively receive one of a plurality of analog voltages. The contact pad at the center is connected to a predetermined output, and the respective switch transistors in the unit region are respectively operated as switch circuits. An analog conversion voltage is obtained by selecting ON/OFF of the plurality of switch transistors in the unit region in response to data.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: January 27, 2009
    Assignee: Rohm Co., Ltd.
    Inventor: Satoshi Miyada
  • Patent number: 7483928
    Abstract: A managing computer (manager) manages replication of data areas inside a storage or among storages. A storage volume management module of the manager manages policy of the volume and its properties. When replication of a volume is set, a volume of a replication destination appropriate for a volume of a replication source is generated using the policy and the properties to form a replication pair. A route management module of the manager and its volume management module bring the policy and the properties of the volumes, and the policies and conditions of lines into conformity with one another. When any fault occurs in a line route used for data transfer during replication of the volume, a separate line route is utilized, and a fault countermeasure is taken for replication of the volumes in accordance with the policy and properties of the volumes.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: January 27, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masayasu Asano, Kenichi Shimooka, Daisuke Shinohara
  • Patent number: 7483368
    Abstract: A TMCC carrier is demodulated from a received OFDM signal having a TMCC carrier. A relative carrier position of the demodulated TMCC carrier is detected. A carrier shift amount is detected from the detected relative carrier position of the TMCC carrier and a normal TMCC carrier position. The received OFDM signal is corrected for the carrier frequency shift based on the detected carrier shift amount.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: January 27, 2009
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Hiroyuki Takesue, Tatsuhiro Nakada, Nobuo Tsukamoto
  • Patent number: D586207
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: February 10, 2009
    Assignee: Bighead Bonding Fasteners Ltd.
    Inventor: Brian Giddings