Apparatus for recording and reading out data pulses

Claim 1

APPARATUS FOR SELECTIVELY READING OUT DATA WHICH HAVE BEEN STORED IN A STATIONARY MAGNETIC RECORDER WIRE IN SPACED DISCRETE SECTIONS ALONG THE LENGTH THEREOF, WHICH COMPRISES A SINGLE PICKUP WINDING WOUND ABOUT THE RECORDER WIRE ALONG THE LENGTH THEREOF; INPUT WINDING MEANS WOUND ABOUT THE RECORDER WIRE TO FORM A SUCCESSION OF INDEPENDENT, INTERCONNECTED INPUT WINDINGS PERIODICALLY SPACED ALONG THE LENGTH THEROF, EACH INPUT WINDING BEING ELECTROMAGNETICALLY COUPLED WITH THE RECORDER WIRE AT A CORRESPONDING ONE OF THE SPACED SECTIONS THEREALONG WIRE AT A CORRESPONDING ONE OF THE SPACED SECTIONS A CURRENT PULSE IN ANY SELECTED ONE OF THE INPUT WINDINGS OF SUFFICIENT AMPLITUDE TO INDUCE A LOCALIZED MAGNETIC FLUX CHANGE PULSE IN THE RECORDER WIRE AT THE CORRESPONDING SECTION THEREALONG WHEREIN DATA IS STORED SO THAT AN OUTPUT PULSE REPRESENTATIVE OF THE SELECTED DATA IS ELECTROMAGNETICALLY INDUCED IN THE PICKUP WINDING, THE AMPLITUDE OF THE CURRENT PULSE BEING SUCH THAT THE STORED DATA IS NOT SIGNIFICANTLY ALTERED.