Kabushiki Kaisha Toshiba

Minoru Yonezawa

Kenji Hirohata

Takeichiro Nishikawa

Minoru Nakatsugawa

Chie Morita

Hiroaki Nakamura

Masatoshi Sakurai

Hideyuki Aisu

Minoru Mukai

Tomoshi Otsuki

Hideaki Ohsawa

Yoshiyuki Hondo

Makoto Sato

Makoto Asakura

Nobutaka Nishimura

Yuichiro Yamamoto

Masayuki Sekimura

Kazuhiro Nagata

Toshimitsu Kumazawa

Yoriyuki Ishibashi

Takao Ohmi

Shizu Sakakibara

Akihiro Suyama

Toru Ezawa

Yoshiyuki Sakamaki

Yasuo Motegi

Mastoshi Hirono

A scheduling apparatus includes a first calculator, a storage, and a second calculator. The first calculator is configured to calculate an assignment of plural time slots to a consumer. Each of the plural time slots is classified into at least any of plural categories. The storage is configured to store a first demand, from the consumer, regarding an extent to which the categories associated with the assignment are biased. The second calculator is configured to calculate an extent to which the categories associated with the assignment calculated by the first calculator are biased and calculate a first evaluation value representing a deviation between the first demand and an extent to which the categories associated with the assignment calculated by the first calculator are biased. The first calculator calculates the assignment so as to optimize an evaluation function including the first evaluation value.

Scheduling apparatus, scheduling method and computer-readable storage medium

There is provided a charge/discharge scheduling system in which a measurer measures temperature of a battery unit, a current/voltage measurer measures a voltage and a current at the battery unit, an estimating unit estimates an internal resistance of the battery unit, a scheduler creates, based on a charge/discharge instruction specifying charge amount or discharge amount, a charging schedule or a discharging schedule for the battery unit, a temperature estimating unit estimates time-transition of temperature of the battery unit, based on the internal resistance of the battery unit, the load estimator estimates a load amount applied to the battery unit based on the temperature time-transition of the battery unit provided that the charging schedule or the discharging schedule is carried out, the charge/discharge scheduler creates the charge schedule or the discharge schedule so that the load amount applied to the battery unit is a minimum or smaller than a threshold value.

Charge/discharge scheduling system and charge/discharge scheduling method

There is provided a data collecting apparatus in which a collector collects, from demanders, demand record data and demand forecast data of the energy; a data history manager; a reliability level calculator calculates, for each demander, a reliability level of the demand forecast data; a supply plan data receiver receives an acquisition request of demand forecast data of a future predetermined time range with respect to each demander from an energy management system; and a data acquisition plan maker makes a collection plan such that the demand forecast data of the future predetermined time range and the demand record data are collected earlier from a demander with a higher reliability level, wherein the data collector collects according to the collection plan, and the data history manager provides the collected demand forecast data to the energy management system before a start time of the future predetermined time range.

Data collecting apparatus and data collecting method

A power receiving unit receives power generated by power generating units via a power system. A power information acquiring unit acquires first system power information showing the proportion of power generated by each power generating unit in a first period. An intensity database stores environmental loading intensities for each power generating unit. A charge load intensity calculator calculates a charge load intensity which is a weighted sum of the environmental loading intensity corresponding to each power generating unit based on the proportion of each power generating unit in the first system power information. A charge/discharge judging unit determines to charge a storage unit in a first period when the charge load intensity is less than a reference value, and not to charge the storage unit in the other cases. A charge/discharge controller charges the storage unit in the first period when determined to charge the storage unit.

Storage battery management system

A green power demand management device includes: a power meter which receives power from a power distribution system with a plurality of power generating units, and supplies a received power to a first appliance; a receiver which receives energy mixture information showing a power generation proportion among each power generating unit, a measuring unit which measures electric energy consumed by the first appliance, a setting unit which sets a first threshold, and an operating state control manager which uses an intensity conversion table including emission intensities each representing an amount of an environmental load material emitted by each power generating unit, obtains a second threshold by dividing the first threshold by sum total of the emission intensity of each power generating unit weighted by the proportion, and controls the first appliance so that electric energy consumption of the first appliance is equal to or smaller than the second threshold.

Green power demand management device

Provided is an apparatus determining values of N and K for an abnormality diagnostic logic which makes a diagnosis N times for each diagnosis target by using observation values collected therefrom, and generates a diagnosis result showing that the diagnosis target is abnormal if the diagnosis target is judged to be abnormal K or more times. A calculator calculates average false detection rate P, average overlooking rate P, bias level of false detection M, and bias level of overlooking M, based on diagnosis result data and inspection result data. A determiner calculates an optimization metric for each combination of values N and K by using the average false detection rate, the bias level of false detection, the average overlooking rate, and the bias level of overlooking, and selects a pair of N and K by which the optimization metric becomes minimum or a threshold value or less.

Abnormality diagnosis filter generator

A user evaluation apparatus includes a parameter determination module which determines parameters of a user evaluation model required to calculate a degree of usage influence so as to maximize a target function. The target function may be defined using weight values, measurement data, and a failure information counting result. The apparatus also includes a user evaluation module which calculates and displays the degree of usage influence using the measurement data and the parameters of the user evaluation model.

User evaluation apparatus depending on hardware usage status

A first predicting unit predicts a power demand required by each customer. A first reliability value calculator calculates the reliability value of the predictive power demand for each customer. Predicted power supply from a power system is calculated with respect to each power generating unit. A second reliability value calculator calculates the reliability value of the predictive power supply for each power generating unit. A balancing unit obtains a supply-demand margin level based on the difference between: a first weighted sum obtained by performing weighted sum on the predictive power demand and a weight depending on the reliability value; and a second weighted sum obtained by performing weighted sum on the predictive power supply and a weight depending on the reliability value. A plan creator creates a plan for controlling power used by the controllable appliance of the customer based on the supply-demand margin level.

Supply-demand balance controller

A first module calculates a failure occurrence risk index of each data storage area address. A second module calculates a power saving index of each data storage area address. A third module calculates an access speed index per unit data volume necessary to access each data storage area address. A fourth module generates a distribution table that represents the failure occurrence risk index, the power saving index, and the access speed index for each candidate address, with respect to data to be distributed. A fifth module selects a candidate address in the distribution table such that the power saving index and the access speed index meet restricting conditions and the failure occurrence risk index is minimized, and distributes the data to the candidate address.

Memory device

An information reproduction method according to an aspect of this invention is directed to an information reproduction method which reproduces information from an information storage medium on which land and groove tracks which can record information are alternately formed in the radial direction along wobbles that represent address information, comprising determining a track structure of a current position traced by a light beam on the basis of the address information, and a track structure of a target position on the basis of a target position address, controlling access to the address of the target position by switching between a first servo polarity corresponding to a land track and a second servo polarity corresponding to a groove track at a predetermined timing as needed on the basis of the determination result of the two track structures, and reproducing predetermined information from the target position address.

Information reproduction device and information reproduction method for reproducing information by switching to servo polarity corresponding to land track and groove track and information recording method for recording information by switching to servo polarity corresponding to land track and groove tract

An optical disk apparatus includes an objective lens that condenses light on an information recording layer of an optical disk that has a first area with a first track pitch and a second area with a second track pitch, to form an optical spot. The apparatus also includes a tilt driver that inclines the objective lens; a positioning unit that positions the optical spot on a target track; a position error detector that detects a position error of the optical spot from the target track; a tilt detection correcting unit that calculates a tilt error signal based on a first position error detected when the optical spot is positioned on a target track in the first area and a second position error detected when the optical spot is positioned on a target track in the second area; and a tilt controller that controls an inclination based on the tilt error signal.

Optical disk apparatus and method of tilt control

An optical disk apparatus including a waiting position determining circuit which detects physical properties of each region in an optical disk after recording or reproducing processing is finished and decides a waiting position of an optical head according to the detection, and various kinds of control mechanisms which controls a position of the optical head according to the decided waiting position in order to move the optical head, is provided. By making the optical head wait at a position before two or more tracks in an unrecorded region, the recording processing can be resumed stably and surely and the recording processing can be preferentially performed in the remaining unrecorded region.

Optical disk apparatus and waiting method thereof

A magnetic recording medium includes a discrete area and an offset amount measurement area. The discrete area has a plurality of magnetic tracks where data can be recorded and that has a non-magnetic track where the data cannot be recorded located between the plurality of adjacent magnetic tracks. In the offset amount measurement area, measurement data for measuring an offset amount indicating a relative distance from a center position of the magnetic track to the first head in a direction crossing the magnetic track when the second head is on the center position of the magnetic track can be recorded.

Medium and apparatus for magnetic recording and method for measuring the offset amount

An optical disk device has a recording information management portion which detects a distribution of a recorded region R and an unrecorded region M based on reflection light received by an optical head and an access target setting circuit which determines an access target of an optical head so as to make access to a target position of a recording layer of an optical disk while avoiding the unrecorded region M based on the detected distribution of the regions. Since an access is made while passing through only the recorded region R, a servo operation can be stabilized.

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Tokyo, Japan

Minoru Yonezawa