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:
Feb. 16, 1982
Filed:
May. 30, 1979
Toshiaki Mizuta, Kawasaki, JP;
Takeshi Abe, Yokohama, JP;
Ichiro Yoshihara, Funabashi, JP;
Kazuhito Saito, Kawasaki, JP;
Keishin Tsuchiya, Higashi-Yamato, JP;
Ricoh Co., Ltd., Tokyo, JP;
Abstract
A remote meter reading system in which clock pulses are transmitted to a selected remote terminal to charge a capacitor there which acts as the terminal power supply. Subsequent clock pulses reset a ten-stage bit counter and four-stage digit counter, after which additional clock pulses step the bit counter, the outputs of which are AND-gated with the outputs of the digit counter, in such a manner that the current drawn from the central data collection terminal is increased whenever there is coincidence between the bit counter and digit counter outputs. A counter at the central data terminal is stepped by the clock pulses and disabled by the relatively large pulses developed when the bit and digit counter outputs coincide. Therefore, the output of the central data terminal counter corresponds to the desired meter reading.