The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 1991
Filed:
Jan. 29, 1990
Raymond J Thornborough, Menomonee Falls, WI (US);
Donald F Pridemore, Hartford, WI (US);
Gregory M Gomez, Wauwatosa, WI (US);
Donald H Strobel, Cedarburg, WI (US);
Badger Meter, Inc., Milwaukee, WI (US);
Abstract
An automatic meter reader includes a microprocessor connected through digital logic circuitry and a telephone interface to a metering transducer and a telephone line, to develop modulated signals for reporting of registered meter data and for sampling of received signals to detect a carrier and to effect demodulation and develop control data. A count-down arrangement is used for developing the modulated signals. In sampling received signals, a sample count is developed which is proportional to the duration of one cycle of a received signal and which is compared with stored counts for detection of a carrier and for demodulation. A debounce arrangement is included in the logic circuitry.