US 6,585,156 B2 · Multichannel magnetic head, method of manufacturing a multichannel magnetic head, and a card reader using the same

Abstract

A multichannel magnetic head includes a plurality of sets of magnetic core half bodies, each of the sets having two of the half bodies facing each other, and a plurality of magnetic gap portions, each of the gap portions located where two magnetic core half bodies face each other. The plurality of magnetic gap portions, when a magnetic medium is inserted therein, transferring record data between the magnetic medium and the magnetic head, and the gap distances of the magnetic gap portions being differentially preset to accommodate a physically warped magnetic medium. A magnetic card reader including a multichannel magnetic head has a plurality of magnetic gap portions, and the multichannel magnetic head is capable of recording data onto a magnetic medium in contact therewith. The multichannel magnetic head has gap distances that can be modified based on a possibility of spacings between the multichannel magnetic head and the magnetic medium so that a warped card can be accommodated.

Claims10

Dependent claims

A multichannel magnetic head, comprising:

three and only three channels including two side channels and one middle channel disposed between said two side channels, each channel having a corresponding set of two magnetic core half bodies facing each other and defining a magnetic gap portion therebetween, said magnetic gap portions of said middle channel and said two side channels being disposed on a contacting face that contacts a magnetic medium;
and
said plurality of magnetic gap portions, when said magnetic medium is moved over said contacting face, transferring data between said magnetic medium and said magnetic head,
a gap distance of said magnetic gap portion of said middle channel being larger than said gap distance of said magnetic gap portions of said two side channels to accommodate a physically warped magnetic medium such that when said data is being transferred, two ends of said contacting face contact said warped magnetic medium and a middle portion of said contacting face corresponding to said gap portion of said middle channel is separated from said warped magnetic medium.

1 more element

Dependencies are inferred from the claim text.

Multichannel magnetic head, method of manufacturing a multichannel magnetic head, and a card reader using the same

Life of this patent

Multichannel magnetic head, method of manufacturing a multichannel magnetic head, and a card reader using the same

Life of this patent

Abstract

Claims10