Browse Prior Art Database

Multiple Code Translator

IP.com Disclosure Number: IPCOM000098639D
Original Publication Date: 1959-Aug-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Thompson, PM: AUTHOR

Abstract

The translator employs bistable magnetic cores to convert decimal digits into binary coded characters in accordance with any one of three codes; namely a 2-out-of-5 code, binary-coded-decimal (BCD) code with an even parity check bit, or BCD code with an odd parity check bit. The five cores in the lower row represent the bit positions of the 2-out-of-5 code and the left-hand four in the upper row represent the binary bits of the BCD code. The remaining two represent respectively the even and odd check bits C and Co used with the binary bits to provide alternate forms of the BCD code.

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Multiple Code Translator

The translator employs bistable magnetic cores to convert decimal digits into binary coded characters in accordance with any one of three codes; namely a 2- out-of-5 code, binary-coded-decimal (BCD) code with an even parity check bit, or BCD code with an odd parity check bit. The five cores in the lower row represent the bit positions of the 2-out-of-5 code and the left-hand four in the upper row represent the binary bits of the BCD code. The remaining two represent respectively the even and odd check bits C and Co used with the binary bits to provide alternate forms of the BCD code.

The decimal input to the translator is provided by energizing one of the ten decimal digit drivers. Translation is effected by coupling the drive line of each digit driver only to those cores which represent bit positions containing 1's in the corresponding output code character. Only one of the ten lines is shown above. Energization of an input line sets the cores coupled to it to the 1 state.

Outputs are obtained on the five sense lines when either the cores are set or subsequently reset. Each sense line represents one bit position of the output character and is coupled to the cores which represent bits occupying that position in each code. The particular code obtained at the output is determined by the manner in which the cores are reset. The cores of the selected code are reset to the 0 state while those of the unselected codes are reset to the 1 state. T...