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. 17, 1989
Filed:
Feb. 06, 1986
Renate Mattis, Munich, DE;
Gunther Seidel, Munich, DE;
Heinrich belhack, Oberhaching, DE;
Russel D Homer, Munich, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
A circuit arrangement for telecommunication installations, in particular, telephone exchange installations is disclosed in which type information is sent ahead of each communication to be transmitted. In bidirectional communication transmission with different possible communication types, type information announcing the respective communication type is sent ahead. In the receiving equipment the beginning of the arrival of type information is recognized and immediately, that is, almost simultaneously, an assortment of type-specific message corresponding to each of the possible communication types is transmitted in the opposite direction, of which each indicates the readiness or non-readiness for receiving a communication of the respective type. From this and from the transmitted type information it is recognized following the transmission of type information and messages on both sides independently of each other but concordantly whether a communication transmission will subsequently occur, cannot occur or will be postponed to a later time.