AUTOMATIC REMOTE METER READING OVER TELEPHONE LINE
3 Assignments
0 Petitions
Accused Products
Abstract
EQUIPMENT AT A SUBSCRIBER STATION TIMES OUT EVERY FOUR WEEKS, DEPENDING UPON DESIGN SPECIFICATIONS. WHEN IT DOES, THE TELEPHONE NUMBER OF A PUBLIC UTILITY DATA PROCESSOR IS READ OUT IF THE TELEPHONE LINE TO THE LOCAL STATION IS THEN IDLE. WHEN THE DATA PROCESSOR REPLIES, A METER READS OUT ITS EXISTING SETTING. IF THE LINE IS OR BECOMES BUSY BEFORE ALL INFORMATION IS FED INTO THE DATA PROCESSOR, THE STATION EQUIPMENT GOES INTO A WAITING CONDITION UNTIL THE LINE AGAIN BECOMES IDLE. CALLS ARE THEN PLACED REPEATEDLY DURING IDLE CONDITIONS UNTIL A COMPLETE BLOCK OF INFORMATION IS SENT OUT AND AN ACKNOWLEDGEMENT SIGNAL IS RECEIVED FROM THE DATA PROCESSOR.
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Specification
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Current AssigneeAlcatel-Lucent USA, Inc. (Nokia Corporation)
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Original AssigneeSellari Daniele Jr
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InventorsSELLARI DANIELE JR
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Application NumberUS04/834,842Time in Patent Office739 DaysField of SearchUS Class Current379/106.06CPC Class CodesH04M 11/002 with telemetering systems t...
