Nec Corporation

Nippon Telegraph and Telephone Corporation

Fuji Jukogyo Kabushiki Kaisha

Oval Corporation

Takashi Hirose

Seiji Yoshida

Keisuke Nishi

Akihiro Morita

Youichi Fukada

Satoshi Inoue

Keiji Sato

Yukio Terauchi

Keiichi Maruyama

Shogo Oki

Yoshihiro Kasahara

Kenji Washio

A time synchronization method that is capable of selecting whether synchronization, by a timepiece unit that generates a time signal synchronized with a standard time and outputs it to an exterior, with the time is performed by time information obtained by receiving a radio wave including information relating to the time, or is performed by means of a holdover performed using a clock signal from an internal or external clock source. A schedule having a first time period in which the above-mentioned time information is used, and a second time period by means of the holdover is determined according to temporal reception characteristics of the radio wave at a reception location of the radio wave, and according to the schedule, supplying the timepiece unit with the time information or supplying the timepiece unit with the clock signal from the internal or external clock source.

Time synchronization device, and method and program therefor

A satellite signal reception characteristic estimation apparatus includes a satellite orbital information collection unit that collects and outputs orbital information for a satellite; a peripheral environment spatial information collection unit that collects spatial information for a peripheral environment of an installation position of a satellite antenna; a positional information collection unit that collects and outputs positional information for the installation position of the satellite antenna; and a simulation server unit that estimates reception characteristics of satellite signals at the installation position of the satellite antenna by performing a simulation based on the orbital information, the spatial information, and the positional information outputted from the satellite orbital information collection unit, the peripheral environment spatial information collection unit, and the positional information collection unit.

Satellite signal reception characteristic estimation apparatus, method thereof, and program thereof

A navigation satellite signal reception apparatus includes a satellite antenna; a satellite orbital information collection unit that collects orbital information of a navigation satellite; a peripheral environment spatial information collection unit that collects spatial information for a peripheral environment of an installation position of the satellite antenna; a positional information collection unit that collects positional information for the installation position of the satellite antenna; and a signal correction unit that performs a determination process to determine whether a navigation satellite associated with the received satellite signal is in a directly viewable state or in a non-directly-viewable state from the installation position of the satellite antenna, and that performs a correction process on a satellite signal from a navigation satellite in an NLOS state, on the assumption that the satellite signal is a reflected wave.

Satellite signal reception apparatus, satellite signal reception method and program therefor

A drive apparatus for a vehicle includes an engine output system that outputs power from an engine and a power transmission system that transmits the power from the engine output system to a driving wheel. A power transmission path including a chain mechanism and a one-way clutch is provided between an oil pump and a turbine shaft that is part of the engine output system. Another power transmission path including a corresponding chain mechanism and a corresponding one-way clutch is provided between the oil pump and a primary shaft that is part of the power transmission system.

Drive apparatus for a vehicle

A converter pulse width shaping circuit () according to the present invention is provided between a waveform shaping apparatus () and an erroneous output preventing apparatus () that are provided between a flow rate detecting portion () and a flow rate metering mechanism (). When high frequency pulse signals of a frequency not lower than a predetermined value are successively input, the converter pulse width shaping circuit () combines those high frequency pulse signals to convert them to a low frequency pulse signal, which is then output to the erroneous output preventing apparatus () having a low-cut function. In the present invention, a vortex flow meter is made up of a converter () including the converter pulse width shaping circuit () described above.

Converter pulse width shaping circuit and excessive vortex flow rate meter

A computer network system has a document data storage system for storing an electronic document having therein a signature image in association with a signer ID number, and an attest data storage system for storing an attest data including a registered signature image data. The document data storage system receives the registered signature image data based on the signer ID number from the attest data storage system, and stores the registered imaged data in association with the electronic document. Examination of the signature can be easily conducted for attesting the electronic document.

Document management system

A hand-held printer and a method thereof has an ink jet head with a plurality of aligned ink nozzles, a device for moving the ink jet head in the orthogonal direction to the aligned direction of the plurality of ink nozzles, a printer case that covers a movable range of the ink jet head and has an opening on the side facing the plurality of ink nozzles, and a handle provided on the printer case. The method for printing one print line using a hand-held printer with a handle includes the steps of: receiving print data corresponding to one print line and discharging ink from a plurality of ink nozzles aligned on an ink jet head of the hand-held printer while moving the ink jet head in the orthogonal direction to the aligned direction of the plurality of ink nozzles according to the print data.

Hand-held printer

A dust collection apparatus includes a tower main body, a filter, a rotating shaft, a rotating mechanism, and a cleaning solution. The tower main body has a suction port through which an exhaust gas containing at least one of a noxious material and dust to be exhausted is taken, and an exhaust port through which a clean gas is discharged. The filter is accommodated in the tower main body and cleans the exhaust gas taken in through the suction port and performs dust collection. The filter is divided into a plurality of discrete filters and is supported to be movable. The rotating shaft and rotating mechanism move the discrete filters simultaneously. The discrete filters are sequentially dipped in the cleaning solution during movement, and are cleaned.

Dust collection apparatus having packed tower

A printing medium which has been fed from a hopper is transported along a transport path having a U-shape. The transport path is formed by first and second linear paths and a curved path. The printing medium is transported along each path in the order of the first linear path, the curved path and the second linear path. When the printing medium passes through the first linear path, the print head performs the printing onto a front surface of the printing medium. Thereafter, the printing medium reaches the second linear path through the curved path. When the printing medium passes through the second linear path, the print head performs the printing on a back surface of the printing medium. At the timing for transporting the printing medium along the curved path, the print head is moved from the vicinity of the first linear path to the second linear path. Thus, the print head is moved and set to be ready for printing in the two positions. The printing medium whose back surface has been subjected to the printing operation is stacked on a stacker.

Printer apparatus for printing on both surfaces of paper or the like

A cushioning material for packing includes a cushioning member body, a large number of spherical members, and an adhesive. The cushioning member body uses one of a pulp material and paper as a raw material and is formed into a box-like shape. The large number of spherical members are formed using one of a pulp material and paper as a raw material and are filled in the cushioning member body. The adhesive adheres the spherical members to each other and the spherical members to the cushioning member body to fix the spherical members in the cushioning member body.

Growing community of inventors

Tokyo, Japan

Takashi Hirose