tanszek:oktatas:techcomm:code
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tanszek:oktatas:techcomm:code [2024/09/16 13:34] – knehez | tanszek:oktatas:techcomm:code [2025/10/06 20:50] (current) – knehez | ||
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The tool of encoding is code. A code consists of a finite set of symbols (an alphabet) and coding rules (groups of symbols). | The tool of encoding is code. A code consists of a finite set of symbols (an alphabet) and coding rules (groups of symbols). | ||
- | A // | + | A // |
- | Encoding changes | + | Encoding changes the information's form, but other information |
**Basic Types of Codes:** | **Basic Types of Codes:** | ||
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$$ N = m^n $$ | $$ N = m^n $$ | ||
- | The fundamental problem of coding theory is the //preservation//, //security//, and //maximization// of the information content of transmitted messages. | + | The fundamental problem of coding theory is the preservation, |
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* **B**: -... (dash-dot-dot-dot) | * **B**: -... (dash-dot-dot-dot) | ||
* **C**: -.-. (dash-dot-dash-dot) | * **C**: -.-. (dash-dot-dash-dot) | ||
- | * **SOS**: ... --- ... (dot-dot-dot, | + | * **SOS**: ... - - - ... (dot-dot-dot, |
Example message: | Example message: | ||
* **HELLO**: .... . .-.. .-.. - - - (dot-dot-dot-dot, | * **HELLO**: .... . .-.. .-.. - - - (dot-dot-dot-dot, |
tanszek/oktatas/techcomm/code.1726493647.txt.gz · Last modified: 2024/09/16 13:34 by knehez