US PATENT SUBCLASS 234 / 69
.~.~ Code conversion

Current as of: June, 1999
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234 /   HD   SELECTIVE CUTTING (E.G., PUNCHING)

59  DF  WITH MEANS TO INITIATE TOOL SELECTION BY SENSING PATTERN INDICIA OR CONFIGURED MACHINE ELEMENT {11}
67  DF  .~ With means to modify effect of pattern data {4}
69.~.~ Code conversion {1}
70  DF  .~.~.~> Combinational-code to or from one-hole-code

DEFINITION

Classification: 234/69

(under subclass 67) Device wherein the altering means effects a change from a code* exhibited by the pattern to a different code cut into the workpiece. [figure] [caption]Fig. 13 With code conversion. (subclass 69)

(1) Note. Any device of this type effects "code conversion". In some instances it would appear instead that a code is being "generated" (as when alphabetical or numerical characters are sensed to control the selection of linearly arranged tools), but the operation is always basically the same, i.e., the transfer or intelligence from one record to another, with a systematic change from one set of arbitrary symbols to another.

(2) Note. Basic mechanisms of the so-called "tape-to-card" or "card-to-tape" record-controlled duplicating machines are found here, for different codes are ordinarily employed in the two record media.

(3) Note. A device which, upon reading the symbol of a digit in a pattern, effects the punching of the symbol of the "tens complement" or "nines complement" of that digit, may be found in this subclass. See (2) Note under subclass 68.

(4) Note. Fig. 13 illustrates code conversion. The data from the pattern of Fig. 9 has been reproduced, but the four-element code symbols appearing in the pattern have been altered to conform to a different code (in this example, another four-element code). In practice, the change may be from one statistical system to another, or from Morse to Cable Code, five-channel tape code to seven-channel code, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, 14 and 96, for code-changing means not limited to a pattern-controlled device. SEE OR SEARCH CLASS

341, Coded Data Generation or Conversion, appropriate subclass for means to change or convert one electrical code into another (and see search notes under said subclass).