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Adjustable Counter for Minimum Decodes

IP.com Disclosure Number: IPCOM000043622D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-05

Publishing Venue

IBM

Related People

Authors:
Heim, LS Makosky, RR [+details]

Abstract

Where a file attachment is required to identify three different fields having unique address marks, a counter may be started at a fixed value and allowed to run continuously until the end of the field. This requires the use of three different sets of counter decodes. The counter could be set to a certain value depending upon the type of address mark so that the count at the end of the field would be the same for all three. This approach presents a problem at the beginning of the field in that multiple counter decodes for each of the fields are required. The problem is resolved using an adjustable counter designed to keep all decodes constant (Fig. 2) for the three fields, as shown in Fig. 1. The bit synchronizer looks for two bytes of zeros.