Information processing device, semiconductor chip, information processing method, and computer program product

Patent metadata

Field	Value
Publication number	US-9710050-B2
Application number	US-201514637499-A
Country	US
Kind code	B2
Filing date	Mar 4, 2015
Priority date	Mar 12, 2014
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

According to an embodiment, an information processing device includes a data obtaining unit and a data storage controller. The data obtaining unit is configured to obtain data measured by a sensor. The data storage controller is configured to store the data obtained by the data obtaining unit in a first memory of volatile nature when a sampling interval indicating an interval at which the data obtaining unit obtains the data is equal to or smaller than a threshold value. The data storage controller is configured to store the data obtained by the data obtaining unit and the data stored in the first memory in a second memory of nonvolatile nature when the sampling interval exceeds the threshold value.

First claim

What is claimed is:

1. An information processing device comprising:
a data obtaining unit configured to obtain sensor data measured by a sensor; and
a data storage controller configured to
store the sensor data in a first memory of volatile nature when a sampling interval is equal to or smaller than a threshold value, and
wherein data stored in the first memory is first data, store the sensor data and the first data in a second memory of nonvolatile nature when the sampling interval exceeds the threshold value;

a time obtaining unit configured to obtain a time at which the data obtaining unit obtains the sensor data every time when the data obtaining unit obtains the sensor data; and
a calculator configured to calculate the sampling interval from a difference between a latest time obtained by the time obtaining unit and a previous time to the latest time.

2. The device according to claim 1 , further comprising a setting unit configured to set the sampling interval in accordance with the sensor data.

3. The device according to claim 1 , further comprising:
a receiver configured to receive an instruction for changing the sampling interval; and
a setting unit configured to set the sampling interval in accordance with the instruction received by the receiver.

4. A semiconductor chip comprising:
a data obtaining unit configured to obtain sensor data measured by a sensor; and
a data storage controller configured to
store the sensor data in a first memory of volatile nature when a sampling interval indicating an interval at which the data obtaining unit obtains the sensor data is equal to or smaller than a threshold value, and
wherein data stored in the first memory is first data, store the sensor data and the first data a second memory of nonvolatile nature when the sampling interval exceeds the threshold value;

a time obtaining unit configured to obtain a time at which the data obtaining unit obtains the sensor data every time when the data obtaining unit obtains the sensor data; and
a calculator configured to calculate the sampling interval from a difference between a latest time obtained by the time obtaining unit and a previous time to the latest time.

5. An information processing method comprising:
obtaining sensor data measured by a sensor;
storing the sensor data in a first memory of volatile nature when a sampling interval indicating an interval at which the sensor data is obtained is equal to or smaller than a threshold value; and
wherein data stored in the first memory is first data, storing the sensor data and the first data in a second memory of nonvolatile nature when the sampling interval exceeds the threshold value;

obtaining a time at which the data obtaining unit obtains the sensor data every time when obtaining the sensor data; and
calculating the sampling interval from a difference between a latest time obtained and a previous time to the latest time.

6. A computer program product comprising a non-transitory computer-readable medium containing a program executed by a computer, the program causing the computer to execute:
obtaining sensor data measured by a sensor;
storing the sensor data in a first memory of volatile nature when a sampling interval indicating an interval at which the sensor data is obtained is equal to or smaller than a threshold value; and
wherein data stored in the first memory is first data, storing the sensor data and the first data in a second memory of nonvolatile nature when the sampling interval exceeds the threshold value;

obtaining a time at which the data obtaining unit obtains the sensor data every time when obtaining the sensor data; and
calculating the sampling interval from a difference between a latest time obtained and a previous time to the latest time.

Assignees

• Toshiba Kk

Inventors

• Segawa Junichi
• Kanai Tatsunori
• Kimura Tetsuro
• Fujisaki Koichi
• Tarui Masaya
• Shirai Satoshi
• Haruki Hiroyoshi
• Shirota Yusuke
• Shibata Akihiro
• Yoshimura Shiyo

Classifications

• G11C7/04 Primary

  with means for avoiding disturbances due to temperature effects · CPC title

• G06F1/3206

  Monitoring of events, devices or parameters that trigger a change in power modality · CPC title

• G06F1/3287

  by switching off individual functional units in the computer system · CPC title

• G06F1/3275

  Power saving in memory, e.g. RAM, cache · CPC title

• G11C11/005

  comprising combined but independently operative RAM-ROM, RAM-PROM, RAM-EPROM cells · CPC title