The servo patterns thus formed can be read optically or they may be read magnetically using magnetic overwriting (if the servo pattern is formed in a magnetic coating on the media).

The magnetic head (50) has superior magnetic data reading accuracy and reliability.

In yet another alternative, the servo patterns may be read both magnetically and optically, with the magnetic and optical reading occurring simultaneously or sequentially.

A magnetic recorder/reproducer for computer data backup and a method of magnetic recording/reproducing.

Quantitative analysis may be accomplished using a magnetic reader device.

The magnetoresistive magnetic field sensor is applied in a magnetic read head device for a recording information system.

The magnetic field source generates a second time varying magnetic field for detection by a magnetic read head of a point-of-sale terminal.

A magnetic recorder includes a laser source (132), a magnetic write head (131), and a magnetoresistive device placed between a pair of magnetic poles (100, 101) of the magnetic head.

A method of feed-forward DC restoration in a perpendicular magnetic read channel is disclosed.

A magnetic recording/playback device (100) includes a magnetic head (1), a magnetic recording medium (2), a spindle (3), a spindle motor (4), a suspension arm (5), a voice coil motor (6), and a control section (7).

Then, the known current and voltage is used to determine the resistance of the MR read head.

Additionally or alternatively, an antiferromagnetic layer may be formed in proximity to the magnetic sense layer.

Further it is possible to provide a method for manufacturing a composite magnetic head most suitable for high-density magnetic recording/reproduction and high in reliability.

Magnetic and non-optical scanning (unlike barcodes and OCRs).

The present invention features a magnetic read head (10') having electronic decode circuitry (44') provided within or adjacent to the head case.