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:
Nov. 16, 1993
Filed:
Apr. 16, 1992
Akihiro Anezaki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A syntax converting apparatus performs conversions between an abstract syntax and a transfer syntax in a presentation layer, defined by an Open Systems Interconnection (OSI). The presentation layer determines the syntax, which describes application processes, and exchanges this syntax with a syntax to be transferred. The syntax converting apparatus is capable of separately decomposing presentation protocol data units (PDUs), which are defined by two different standards, for example, Standard x and Standard y. This is accomplished using a decoding and a decomposing unit in the presentation layer. The decoding unit decodes data strings encoded in accordance with ISO 8825 ASN.1 Basic Encoding Rules, and the decomposing unit decomposes this decoded data with each of the protocol specification units, describing the abstract syntax thereof.
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