DEVICE FOR IDENTIFYING NEWS ITEMS

Title:

DEVICE FOR IDENTIFYING NEWS ITEMS

Document Type and Number:

WIPO Patent Application WO1989001690

Kind Code:

A3

Abstract:

PCT No. PCT/EP88/00717 Sec. 371 Date Jan. 19, 1990 Sec. 102(e) Date Jan. 19, 1990 PCT Filed Aug. 11, 1988 PCT Pub. No. WO89/01690 PCT Pub. Date Feb. 23, 1989.An apparatus and a method for the identification and encrypting/decrypting of messages permits converting an input message provided as characters, in character-by-character fashion and depending on preceding characters, to form an output message. An address branching network is employed for encrypting/decrypting. The address branching network includes selectable branches that are carriers of encrypting/decrypting characteristics. The selection of such branches is done in a step-by-step selection run through the branching network to convert any specific input message of optional length character-by-character into a specific selection path through the branching network. The output message is formed on the basis of the encrypting/decrypting characteristics from the branches selected on said selection path.

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Inventors:

ELSNER PETER (DE)

Application Number:

PCT/EP1988/000717

Publication Date:

April 20, 1989

Filing Date:

August 11, 1988

Export Citation:

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Assignee:

ELSNER PETER (DE)

International Classes:

G06F17/30; G06F7/10; G06F21/31; G06K19/10; G06Q20/34; G07F7/10; G11C8/00; H03M7/30; H04L9/00; H04L9/28; H04L9/32; (IPC1-7): G11C8/00

Foreign References:

EP0027853A1	1981-05-06
EP0020999A1	1981-01-07

Other References:

Journal of the Association for Computing Machinery, Heft 19, Nr. 3, Juli 1972 (New York, US) L.E. Stanfel: "Practical aspects of doubly chained trees for retrieval" Seiten 425-436
Patent Abstracts of Japan, Band 2, Nr. 10, Seite 10293 E 77, 25. Januar 1978; & JP-A-52125239 (FUJITSUU K.K.) 20. Oktober 1977
Elektronik, Heft 27, Nr. 14, 15; Dezember 1978, (München, DE) K. Holtz et al.: "Der selbstlernende und programmierfreie Assoziationscomputer" Seiten 39-46, Seiten 53-65

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