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:
Nov. 08, 1983
Filed:
Nov. 05, 1980
Klaus Panzer, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
In a time division multiplex system having chronological grouping of optically transmittable PPM signals, the PPM signals of one half of the time channels are transmitted as pulses in one half of each pulse frame and the PPM signals of the other half of the time channels are transmitted as pulse pauses in the other half of each frame for the purpose of the co-transmission of a clock frequency component without providing a separate synchro time slot. For this purpose, PPM pulses are formed and transmitted only in one pulse frame half, while PPM pulses formed in the other pulse frame half are subtracted from a continuous signal corresponding in amplitude to the pulse amplitude, and the signal difference is transmitted. At the receiver, the frame clock component is filtered out by a band-pass filters and is exploited for controlling a receiving clock generator.