Magnetic detection device and decoding system
AssigneeSony Semiconductor Solutions Corporation
InventorsYUTAKA HIGO, MASAHIRO SEGAMI, MASANORI HOSOMI, LUI SAKAI
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Abstract
There is provided a magnetic detection device including a pixel array unit configured by pixel units including a magnetoresistive element and a detection unit being arranged in an array or configured by a basic array including a plurality of the pixel units being arranged in an array. The magnetoresistive element includes a fixed layer having a fixed magnetization direction, a nonmagnetic layer disposed on the fixed layer, and a storage layer disposed on the nonmagnetic layer. The detection unit detects an external magnetic field based on a change in a resistance value of the magnetoresistive element.
Claims23
A magnetic detection device comprising
- a pixel array unit configured by pixel units including a magnetoresistive element and a detection unit being arranged in an array or configured by a basic array including a plurality of the pixel units being arranged in an array, wherein
- the magnetoresistive element includes:
- a fixed layer having a fixed magnetization direction;
- a nonmagnetic layer disposed on the fixed layer;
- and
- a storage layer disposed on the nonmagnetic layer, and
- the detection unit detects an external magnetic field based on a change in a resistance value of the magnetoresistive element.
A decoding system comprising:
- a magnetic detection device worn on a user;
- an encoder;
- and an arithmetic unit, wherein
- the magnetic detection device
- includes a pixel array unit configured by pixel units including a magnetoresistive element and a detection unit being arranged in an array or configured by a basic array including a plurality of the pixel units being arranged in an array,
- the magnetoresistive element includes:
- a fixed layer having a fixed magnetization direction;
- a nonmagnetic layer disposed on the fixed layer;
- and
- a storage layer disposed on the nonmagnetic layer,
- the detection unit detects an external magnetic field based on a change in a resistance value of the magnetoresistive element,
- the encoder
- acquires the external magnetic field from the magnetic detection device as input data and
- calculates a feature vector based on the input data, and
- the arithmetic unit outputs, based on the feature vector, a thought of the user or a stimulus given to the user.
Dependencies are inferred from the claim text.