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AssigneeNidec Sankyo Corporation
InventorsJo Tanaka, Yohei Shimizu, Yufei Gu
Estimating the term…
A card reader includes a writing coil that is provided to a magnetic head for recording magnetic data in a magnetic card, and a drive circuit that supplies a write current to the writing coil. The drive circuit is a chopping circuit that supplies a chopping current, on/off of which is switched in a specified cycle, as the write current to the writing coil. An on/off cycle of the chopping current is a cycle in which a length of a magnetized pattern in a recording direction is shorter than a reading gap formed in a core around which the writing coil is wound or a core around which a reading coil being separately provided from the writing coil is wound, the magnetized pattern in the recording direction being formed in the magnetic card by the chopping current in a period including one each of the on and the off.
A card reader comprising:
A control method for a card reader that includes a magnetic head for recording magnetic data in a magnetic card, the control method for the card reader comprising:
Dependencies are inferred from the claim text.