Bar code wave storing machine

Application Number: 00105289
Application Date: 2000.04.20
Publication Number: 1318811
Publication Date: 2001.10.24
Priority Information:
International: G06K7/10
Applicant(s) Name: Wang Huailiang
Inventor(s) Name: Wang Huailiang
Patent Agency Code: 00000
Patent Agent:
Abstract Bar code wave storing machine is one unit capable of storing information carrying vibration current in different frequency to or reading out the corresponding informatino from a magnetic tape. The present invention expands the information capacity of magnetic tape based on the principle that vibration current of different frequency may be superposed without interference and the principle that information may be carried by vibration current. Various devices including HF magnetic head, synchronous controller, switch controller, single frequency eraser, current amplitude controller, digitally controlled amplifier, setting counter, etc. are designed. The access is controlled via digital control data.