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. 17, 1979
Filed:
Feb. 21, 1978
Juergen Heitmann, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A code generator for text transmission devices emits code characters assigned to subscribers over a trunk line in order to allow a subscriber to be recognized. The code characters are stored in a memory which is formed from electronically operable storage elements and remain unchanged following disconnection of the operating voltage. A write-in control unit is provided for writing the code characters into the memory and a read-out control unit is provided for reading the code characters from the memory. The write-in control unit can be connected by way of a line matching unit to the trunk line by way of which the texts are normally transmitted, and the code characters can be input into the memory from a central position by way of the trunk line.