Patents Assigned to Buffalo Inc.
  • Publication number: 20120079319
    Abstract: A storage system is capable of configuring a failover system by use of a first storage processing device to which first storage media are connected and a second storage processing device to which second storage media are connected. The storage system sets the RAID level of the second storage media to a RAID level with lower redundancy than the RAID level of the first storage media, if the storage capacity of the second storage media is smaller than the storage capacity of the first storage media.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: Buffalo Inc.
    Inventors: Satoru GOTO, Yukihito HARA
  • Publication number: 20120074793
    Abstract: There is provided a peripheral device capable of being connected to a host device through a connection cable including a power line. This peripheral device comprises: a first power terminal capable of being connected to the power line of the connection cable; a power circuit connected to a second power terminal different from the first power terminal and for supplying power to an internal circuit; a start signal generating circuit for generating a start signal causing the power circuit to start supplying power to the internal circuit, when power has been supplied to the first power terminal through the connection cable; and a feedback circuit for allowing the start signal to remain activated when power has been supplied to the internal circuit from the power circuit.
    Type: Application
    Filed: September 18, 2011
    Publication date: March 29, 2012
    Applicant: Buffalo Inc.
    Inventors: Nobuhiro TAMURA, Masao Yamaguchi
  • Publication number: 20120075667
    Abstract: A communication system is allowed to use one or more electronic devices connected with a device interface of a server system by communicating with the server system via a network. The communication system or the server system notifies to a user a correspondence relation between items, including those identifying the electronic device and a port connected with the electronic device.
    Type: Application
    Filed: September 18, 2011
    Publication date: March 29, 2012
    Applicant: Buffalo Inc.
    Inventor: Keitaro KAMATA
  • Patent number: 8145857
    Abstract: The control device has a fetching unit, a virtual drive creation unit, and an access control unit. The fetching unit fetches, from the external storage device, attribute information relating to data stored in the external storage device. The virtual drive creation unit creates, in the control device, a virtual drive for storing the fetched attribute information. The access control unit controls access to the virtual drive and the external storage device. When an instruction relating to the attribute information is input, the access control unit accesses the virtual drive to fetch the attribute information. When an instruction to read the data from the external storage device is input, the access control unit accesses the external storage device to reads the data. When an instruction to write new data to the external storage device is input, the access control unit accesses the external storage device to write the new data.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: March 27, 2012
    Assignee: Buffalo Inc.
    Inventors: Masahiko Horibe, Taichi Ejiri, Tsukasa Ito
  • Publication number: 20120072690
    Abstract: A USB-SATA conversion circuit board of a memory device includes a data traffic counter that retains a data traffic transferred in accordance with a reading command within a certain time period. Subsequently, the data transfer is prohibited when it is determined that the data is transferred from the memory device to the host device at a speed faster than a data transfer speed requisite at the time of playing of a motion image based on a value retained by the data traffic counter.
    Type: Application
    Filed: September 18, 2011
    Publication date: March 22, 2012
    Applicant: Buffalo Inc.
    Inventor: Taichi EJIRI
  • Publication number: 20120069787
    Abstract: A communication device includes a wireless LAN interface that can communicate with a wireless device other than the communication device, and a wired LAN interface having a plurality of ports, and relays a communication between an electronic device connected to each of the plurality of ports and the wireless device. When an electronic device is connected to a specific port set beforehand among the plurality of ports, the communication device obtains the MAC address of the electronic device, uses the obtained MAC address as the local MAC address, and communicates with the wireless device.
    Type: Application
    Filed: September 18, 2011
    Publication date: March 22, 2012
    Applicant: Buffalo Inc.
    Inventor: Nobuhiro TAMURA
  • Publication number: 20120066525
    Abstract: The rotating speed of a cooling fan is controlled in accordance with the number of devices connected to ports of a packet transmitting/receiving unit and a connection speed with that device. When the number of ports establishing a link at a speed of 1 Gbps is zero, the voltage value of power output from a power source block to the cooling fan is 0 V and the cooling fan is deactivated. When the number of ports establishing a link at a speed of 1 Gbps is one or two, the voltage value is 8 V and the cooling fan rotates in a slow mode. Furthermore, when the number of ports establishing a link at a speed of 1 Gbps is three or four, the voltage value is 12 V and the cooling fan rotates in a fast mode.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Applicant: Buffalo Inc.
    Inventors: Nobuhiro TAMURA, Hiroshi NAKATAKE
  • Patent number: 8136015
    Abstract: In the ordinary operation mode, a data storage apparatus writes data into a first flash memory, while writing ECC data, which is used for correcting the data written in the first flash memory, into a second flash memory. When there is no remaining storage space in the first flash memory, the data storage apparatus deletes existing ECC data previously written in the second flash memory and writes ordinary data into the second flash memory. This arrangement enhances the reliability of data and enables effective use of the original storage space in the system of data storage with multiple storage areas.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: March 13, 2012
    Assignee: Buffalo Inc.
    Inventors: Noboru Kawai, Tadashi Arakawa
  • Publication number: 20120059945
    Abstract: A first terminal connectable to a wireless LAN pre-stores utilization information required in order for a terminal to utilize the wireless LAN. At least one of either the first terminal, or a second terminal connectable to the wireless LAN, determines whether a predetermined operation requesting data transfer is present in the one terminal, and on the basis of the predetermined operation the first terminal transfers its stored utilization information via wireless means to the second terminal. The second terminal stores the utilization information transferred from the first terminal.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 8, 2012
    Applicant: BUFFALO INC.
    Inventor: Satoru Yamaguchi
  • Publication number: 20120054373
    Abstract: The present invention provides a connection apparatus for connecting with at least one peripheral device and at least one host machine, the connection apparatus comprising: a first connection section connectable by a first communications standard to a host machine; at least one second connection section connectable by the first communications standard to a peripheral device; a communication section connectable by a second communications standard to a host machine via a network; a conversion section for inter-converting data between a data format compliant with the first communications standard and a data format compliant with the second communications standard; and a switching section for switching operational state of the connection apparatus between a first operational state in which a peripheral device connected to the at least one second connection section and a host machine connected to the communication section are data-communications enabled by means of data-format conversion by the conversion section,
    Type: Application
    Filed: August 22, 2011
    Publication date: March 1, 2012
    Applicant: BUFFALO INC.
    Inventor: Yoshiteru Tamura
  • Publication number: 20120054358
    Abstract: A network relay device includes: a plurality of ports to which external devices connect, and configured pre-correlated with types of authentication to be conducted with respect to connected external devices; an authentication process section for conducting, when an external device is connected to the network relay device, mutual authentication between the network relay device and the external device in accordance with the type of authentication that a port to which the external device is connected is configured for; a relay process section for relaying, without authentication being conducted by the authentication process section, frames received through a port configured for a first authentication type, and for relaying frames received through a port configured for a second authentication type, if authentication by the authentication process section has succeeded.
    Type: Application
    Filed: August 23, 2011
    Publication date: March 1, 2012
    Applicant: BUFFALO INC.
    Inventor: Daisuke Yamada
  • Publication number: 20120054359
    Abstract: A network relay device includes: a plurality of ports to which external devices connect, and configured pre-correlated with types of authentication to be conducted with respect to connected external devices; an authentication process section for determining, when an external device is connected to the network relay device, the type of authentication that the port to which the external device is connected is configured for, and if the determined type of authentication is a first authentication type, conducting mutual authentication between the network relay device and the external device using an authentication protocol chosen from among a plurality of authentication protocol candidates in accordance with type of connected external device; and a relay process section for relaying frames received from an external device with which authentication by the authentication process section has succeeded.
    Type: Application
    Filed: August 23, 2011
    Publication date: March 1, 2012
    Applicant: BUFFALO INC.
    Inventor: Daisuke Yamada
  • Publication number: 20120054830
    Abstract: A network relay device includes: an authentication process section for conducting, when a separate network relay device is connected to the network relay device, mutual authentication between the network relay device and the separate network relay device in accordance with an authentication protocol determined in an authentication protocol list; and a relay process section for determining whether frames received by the network relay device is eligible to be relayed in accordance with a permission list, and for relaying received frames determined to be eligible to be relayed. On a condition that the mutual authentication by the authentication process section has been successful, the relay process section also relays, through the network relay device, frames received from the separate network relay device.
    Type: Application
    Filed: August 23, 2011
    Publication date: March 1, 2012
    Applicant: BUFFALO INC.
    Inventor: Daisuke Yamada
  • Patent number: 8126864
    Abstract: A method and apparatus for managing a folder is provided. The method includes: setting a drive correspondence table showing a correspondence relation of first location information including location information of an apparent drive allocated to the folder in the operating system and second location information including location information of a target drive to be actually allocated to the folder; and changing, in response to a request for an access to the folder requested by the operating system, location information allocated to the folder from the first location information of the apparent drive allocated to the folder to the second location information of the target drive allocated to the folder in accordance with the drive correspondence table without notifying the operating system of a change of location information of the drive allocated to the folder, whereby enabling the operating system to consequently access the folder in the target drive.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: February 28, 2012
    Assignee: Buffalo Inc.
    Inventor: Satoru Goto
  • Publication number: 20120047292
    Abstract: The present invention provides a monitoring system comprising a device server and a host computer, the monitoring system monitoring the operation state of at least one peripheral device. The device server includes: at least one peripheral device port; a power supply section for supplying power to the peripheral device; and a first control section for making control of starting and stopping supply of power. The host computer includes: a second control section for instructing the first control section to start or stop supplying power to a peripheral device, and accessing the peripheral device; and a display unit. The first control section reports online-status notification to the second control section when supply of power is started, and reports offline-status notification to the second control section when supply of power is stopped.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 23, 2012
    Applicant: BUFFALO INC.
    Inventor: Nobuhiro Tamura
  • Publication number: 20120042178
    Abstract: Provided is a peripheral device including: a connection portion capable of selectively connecting to multiple types of connectors corresponding to multiple types of interfaces, the connection portion including a power terminal for receiving a supply of power from a host device via a connector; a control section for initiating, upon receiving a supply of power, a connection process to form a logical connection with the host device by using any one of the multiple types interfaces; a power line connecting the control section and the terminal; and a delay process section for delaying supply of power to the control section having started by the connector being connected to the connection portion, for a predetermined time, the delay process section being disposed along the power line.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: BUFFALO INC.
    Inventors: Suguru Ishii, Tsukasa Ito, Kenji Kato
  • Publication number: 20120042179
    Abstract: A server machine according to the present invention includes: one or more ports each connectable to a separate peripheral device; at least one communication section connectable to a network in plural types of communications mode differentiated according to communications rate and each differing in power consumption required for communications; and a setting section for, based on at least the respective power consumptions in the communications modes and on the sum of the highest-speed data transmission rates of each peripheral device connected to the one or more ports, choosing one of the communications modes and setting the communication section into the chosen communications mode.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Applicant: BUFFALO INC.
    Inventor: Nobuhiro Tamura
  • Publication number: 20120033538
    Abstract: A storage apparatus comprising: a casing forming a housing chamber; a disk drive housed in, at a spacing from, the housing chamber, such that unit outer walls of the disk drive are separated by a clearance from inner walls of the casing; and a buffer member interposed in the clearance between the disk drive and the casing, for absorbing an impact stress. The buffer member is formed of a material having flexibility, and is provided with: a support part fitted to a wall surface of one of either the disk drive or the casing; a hemispherically shaped dome part, formed on the support part; and an abutment part, formed along a top portion of the dome part, abutting on a wall surface of the other of either the disk drive or the casing. The dome part and the support part form, together with the wall surface of the one of either the disk drive or the casing, a sealing chamber sealing in air, whereby the dome part is lent elasticity.
    Type: Application
    Filed: August 2, 2011
    Publication date: February 9, 2012
    Applicant: BUFFALO INC.
    Inventor: Tsuyoshi Ozeki
  • Publication number: 20120030466
    Abstract: A relay device first uses latest authentication data to determine whether request-authentication data transmitted from a wireless communications device is valid. If the latest authentication data is used to determine that the request-authentication data is valid, the relay device carries out relayed communications with the wireless communications device. If the latest authentication data is used to determine that the request-authentication data is invalid, the relay device next uses a former authentication data to determine whether the request-authentication data is valid. If the former authentication data is used to determine that the request-authentication data is valid, the relay device provides the wireless communications device with the latest authentication data to update authentication data in the wireless communications device.
    Type: Application
    Filed: July 25, 2011
    Publication date: February 2, 2012
    Applicant: BUFFALO INC.
    Inventor: Satoru Yamaguchi
  • Publication number: 20120026996
    Abstract: A communications device for performing wireless communications includes: a data receiving section for receiving data by wireless communications; a data transmitting section for transmitting data by wireless communications; a mode switching section for switching an operation mode of the communications device between a first mode in which power is supplied to the data transmitting section, and a second mode in which power consumption in at least the data transmitting section is minimized over that in the first mode; and a determination section for determining whether the data receiving section has received designated data. The mode switching section switches the operation mode of the communications device from the second mode to the first mode if, in a state in which the communications device is in the second mode, the determination section has determined that the data receiving section has received the designated data.
    Type: Application
    Filed: July 25, 2011
    Publication date: February 2, 2012
    Applicant: BUFFALO INC.
    Inventor: Satoru Yamaguchi