G - Physics – 06 – K
Patent
G - Physics
06
K
40/18, 354/56
G06K 19/06 (2006.01)
Patent
CA 1046163
Abstract of the Disclosure The code and record medium of the present inven- tion is comprised of a plurality of code marks which are positioned around the periphery of one or more circles in A predetermined sequence, on a record member, for merchan- dise marking or other appropriate use. One or more of the code marks can be designated to be a marker for an orienta- tion of the code sequence. A machine can read the code marks by scanning the code marks with e light beam, or other suitable scanner, is an associated article of merchan- dise, for example, is moved transversely across the scan path of the beam. Light reflections from the code marks are detected end converted into corresponding electrical sig- nals. The electrical signals are then compared against known valid signals to eliminate false signals not corres- ponding to known code marks. Valid signals may be serially fed to a shift register which shift register, upon receipt of all valid signals corresponding to the reading of one plurality of code marks, end-around shifts the received sig- nals to align the marker signal in a predetermined location in the shift register thereby placing all of the received signals in sequence regardless of the angular orientation of the circularly positioned plurality of code marks with re- spect to the scan beam.
227206
Horst William R.
Riffee Lyle G.
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