| US 7,559,012 B2 | ||
| Method for error detection and flow direction determination in a measuring meter | ||
| Walter Castleberry, Tallassee, Ala. (US); Jerry Lovett, Tallassee, Ala. (US); David Hamilton, Tallassee, Ala. (US); John Scarborough, Tallassee, Ala. (US); and Tim Bianchi, Tallassee, Ala. (US) | ||
| Assigned to Neptune Technology Group, Inc., Tallassee, Ala. (US) | ||
| Filed on Nov. 04, 2003, as Appl. No. 10/701,027. | ||
| Claims priority of provisional application 60/423598, filed on Nov. 04, 2002. | ||
| Prior Publication US 2004/0123656 A1, Jul. 01, 2004 | ||
| Int. Cl. G06F 11/00 (2006.01) | ||
| U.S. Cl. 714—812 [714/811; 714/706] | 10 Claims |
| 1. A method for correcting data signal errors in a meter, comprising:
receiving ordered data signals from the meter;
analyzing the sequence of the ordered data signals to detect a missing data signal by calculating a temporary 2-bit binary
variable based on a present data signal and a previous data signal in the sequence of ordered data signals;
correcting the value of a last valid direction indicator that indicates flow direction in the meter, and
compensating for the missing data signal by adding a predetermined value to a sequence counter.
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