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:
Jan. 12, 1988
Filed:
Jun. 05, 1985
Shinichi Akano, Shibuya, JP;
Yamatake Honeywell, Tokyo, JP;
Abstract
A method of communicating data between first and second communication apparatus having the steps of transmitting line current from the first communication apparatus to a transmission line interconnecting the first and second communication apparatus, the line current being controlled at an analog value representing analog data and having superimposed thereon a digital signal representing digital data, receiving at the second communication apparatus the analog and digital data transmitted by the first communication apparatus, controlling the transmission line voltage at an analog value for transmitting analog data from the second communication apparatus to the first communication apparatus and superimposing on the voltage containing the analog data a digital signal representing digital data, and receiving at the first communication apparatus the analog and digital data transmitted by the second communication apparatus.