JPS57199042A - Symbol string collating device - Google Patents

Abstract

PURPOSE:To detect the same partial symbol string as a significant partial symbol string in a symbol string to process a signal in a high speed asynchronously with a computer, by providing a memory device, a symbol comparator, an operator, a controller, etc., which function independently of the computer, in a symbol string collating device. CONSTITUTION:A continuous symbol string inputted from an external information processing device to a data input line 9 is stored in the first register file 21, and this symbol string is stored in the second register file 22 in order of address. A significant partial symbol string of the symbol string is held in a register file 23 for delimiter symbol. Symbol strings inputted to files 21 and 22 are read out to X and Y registers 41 and 42 by addresses held in a P register 24 and a Q register 25, and the symbol string read from the file 23 is applied to an alpha register 43. Contents of registers 24 and 25 are operated to prescribed values by operators 31 and 32, and outpts from registers 41-43 are compared in a code comparator 33, and the same partial symbol string as the significant symbol string is detected and is applied to a controller 6.