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--- tanszek:oktatas:techcomm:code [2024/08/27 16:25] – knehez
+++ tanszek:oktatas:techcomm:code [2025/10/06 20:50] (current) – knehez
@@ Line 1: / Line 1: @@
 ==== Code =====
-The mapping of events to messages is called encoding. Messages are recorded in information storage units. The recorded message itself is an event system. Encoding is a transformation, based on the mutual and unambiguous correspondence between two event systems.
+The mapping of events to messages is called encoding. Messages are recorded in information storage units. The recorded message itself is an //event system//. Encoding is a transformation, based on the mutual and unambiguous correspondence between two event systems.
-The tool of encoding is the code. A code consists of a finite set of symbols (an alphabet), along with 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 codeword is an elementary message, which consists of a finite number of symbols. The set of code symbols and the rules for forming codewords together constitute the syntax of the code.
+A //code-word// is an elementary message, which consists of a finite number of symbols. The code's syntax is the set of code symbols and the rules for forming code-words.
-Encoding changes the form of the information, but other characteristics of the information remain unchanged. There are fixed-length and variable-length codes.
+Encoding changes the information's form, but other information characteristics remain unchanged. There are fixed-length and variable-length codes.
 **Basic Types of Codes:**
@@ Line 24: / Line 24: @@
 $$ N = m^n $$
-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, security, and maximization of the information content of transmitted messages.
@@ Line 44: / Line 44: @@
   * **B**: -... (dash-dot-dot-dot)
   * **C**: -.-. (dash-dot-dash-dot)
-  * **SOS**: ... --- ... (dot-dot-dot, dash-dash-dash, dot-dot-dot) - a universal distress signal.
+  * **SOS**: ... - - - ... (dot-dot-dot, dash-dash-dash, dot-dot-dot) - a universal distress signal.
 Example message:
   * **HELLO**: .... . .-.. .-.. - - - (dot-dot-dot-dot, dot, dot-dash-dot-dot, dot-dash-dot-dot, dash-dash-dash)