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. 03, 1979
Filed:
Feb. 02, 1976
Gustav Guanella, Zurich, CH;
Alban Graf, Gebenstorf, CH;
Patelhold Patentverwertungs- & Elektro-Holding AG, Glarus, CH;
Abstract
Method and apparatus for encoding transmitted data and decoding the data at a receiving facility. The data is divided into elements of equal length. Each element is assigned an age number having a value within a prescribed range. The age value determines the number of delay intervals experienced by each element before being transmitted. Delays of the proper length are obtained by the use of storage elements. Age numbers are assigned arbitrarily. The age numbers are incremented upon the passage of each delay interval. Values within the aforementioned range are randomly generated. A data element is removed from storage and transmitted when: (1) its age number compares with the randomly generated value; or (2) when its age number reaches the extreme value; or (3) when its age number is zero. A new element is placed in storage simultaneously with the removal of an element therefrom. At the receiver end elements are stored and their age numbers are incremented upon the occurrence of each delay interval. Elements are removed from storage (and replaced by a newly received element) when they reach the extreme value. Elements having age numbers of zero (i.e. 'no delay') are transferred to the receiver output line without delay. The re-transposed elements at the receiver output line reconstruct the message elements into the arrangement of the original data as it was before its encoding (i.e. transposition) at the transmitting end. Various modifications of the basic technique are provided to encode various types of data and to solve other technical problems.