Patent ID: 7239466

Claim:
A magnetic head device for recording magnetic signals simultaneously through a plurality of recording heads into recording tracks laid oblique to a running direction of a magnetic tape, comprising: first group to m-th group of multi-heads, each group having “q” recording heads disposed side by side as being shifted in a recording direction into the recording tracks to form (q×m) recording tracks with an identical recording width Tp, wherein: every adjacent groups of the multi-head being disposed as being shifted from each other on the same straight line by a distance D determined by the equation (1), so as to simultaneously form the recording tracks of first group to m-th group: D=Tp×q ×( m×n+ 1) (1) where, Tp>0, q and m are integers of 2 or larger, and n is an integer of 0 or larger and indicates a number of unrecording regions of recording track groups in a single rotation of the rotating drum having the magnetic head device.