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:
Oct. 17, 1978
Filed:
Nov. 23, 1976
Dieter Preuss, Berenbostel, DE;
Peter Segin, Hanover, DE;
Dr.-Ing. Rudolf Hell GmbH, , DE;
Abstract
Method for the digital run-length coding with redundance reduction for the transmission of binary-coded picture information, whereby short code words are assigned to run lengths which occur often, and long code words are assigned to rare run lengths and whereby, from a given run length on, a prefix word for the differentiation of code words of the shorter run-lengths is assigned to the run-lengths, as well as a code word following the prefix word and stating the respective run-lengths as a binary number. Black and white run-lengths which are transmitted by a code word are associated with different code words, depending on how often they occur. The given run-length, from which the coding is to be done with the help of a prefix word, is different for black and white run-lengths. An individual code word is transmitted at the beginning of a line, and it differs from the code words for the individual run-lengths, from the word combination resulting from the prefix word and the subsequent code words, and which does not occur as bit combination of several words or partial words, respectively, in the transmitted data flow.