【発明の名称】磁気記憶カードの二進情報を評価する方法 - Siemens Knicksdorf Information System Akchen Gesellshaft

Title:

【発明の名称】磁気記憶カードの二進情報を評価する方法

Document Type and Number:

Japanese Patent JPH04504480

Kind Code:

A

Abstract:

A magnetic data card (10) has information recorded on a strip with three tracks. The card is read by passing across an electro-magnetic head (30) at a constant speed (V). The induced pulses are passed through a filter (32) and are amplified (34) before being converted (36) to generate digital inputs to a microprocessor (38). The signals are obtained in a sampling process with the status of the signals at the end of sampling periods determining 1 or 0 states. Specific timing of signals allows any spurious value to be identified and eliminated.

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Inventors:

Veil, fubert
Fick, Wolfgang
Jaeger, Valdemar

Application Number:

JP50495991A

Publication Date:

August 06, 1992

Filing Date:

March 01, 1991

Export Citation:

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Assignee:

Siemens Knicksdorf Information System Akchen Gesellshaft

International Classes:

G11B20/12; G11B20/14; G11B20/22; H03M5/12; H03M5/14; H04L25/06; H04L25/49; (IPC1-7): G11B20/12; G11B20/14; H03M5/14

Attorney, Agent or Firm:

Nobuo Kinutani (1 outside)

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