Octet iterator template interface for protocol transfer syntax coding services
US6256778A · kind A · utility
Inventor
Key dates
| Filing date | Dec 21, 1996 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Dec 21, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is disclosed that allows the concise implementation of one protocol encoding/decoding device for syntax conversion between an abstract data syntax and a transfer syntax presented in an open-ended variety of input/output/storage mediums, including, but not limited to random-access memory, disk files, communications sockets, buffer lists, and other static or dynamically-extensible storage structures. The abstract syntax is described using the Abstract Syntax Notation One standard and presented in a higher-level object-oriented programming language such as C++. The transfer syntax is specified by standardized encoding rules and results in a stream of octets (unsigned 8-bit characters) suitable for communication transport using the Open Systems Interconnection (OSI) protocol model. The result of encoding (which is also the input for decoding) is called a protocol data unit (PDU). For different applications, it may be useful to present the PDU using various input/output or storage mediums such as listed above. The disclosed method employs a template function parameterized on an octet output iterator interface to provide an ASN.1 encoding mechanism, and a corresponding template …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.