High-resolution magnetic encoder

Details High-resolution magnetic encoder High-resolution magnetic encoder

2004-10-29

2009-11-03

LeDynh, Bot L (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S210000, C324S207250

Reexamination Certificate

active

07612555

ABSTRACT:
A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is attached to the mechanism, such as a housing, a substrate, and/or an electronic board. The sensor is adapted to perform a relative movement with respect to and in close contact to the surface of the magnetic medium. The magnetic medium may be protected by an overcoat layer. The magnetic resistive sensor may be Giant Magnetic-Resistive (GMR) sensor and/or a Tunneling Magnetic-Resistive Sensor (TMR).

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patent: 2001202606 (2001-07-01), None
PCT International Preliminary Report on Patentability (IPER) in corresponding international patent application PCT/EP2004/052719, dated Jun. 8, 2006.

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