Charmsec^® (9c,44) Error-Correcting Characterization Code Demo

JavaScript port of the exemplary application program charmsec7_5c_demo.c for Patent No. 7142977.

Based on the Charmsec^® CoDec Library Rev.2.00 (2026-07-29) | JP,7142977,B

1. Transmitter Stage (Encoding)

Stage 1: Transmission Data (Positional Number System [0 : minmodmax])

Stage 2-A: Modulus Residue Vector (vector, RRNS: Redundant Residue Number System Representation):

Stage 2-B: Transmission Code (Mapped to Characters):

Random symbol (character) error generation:

Inject a random single-character error into the corresponding modulus symbol.

Stage 3: Received Code (with or without Error):

* Non-code symbols (unmapped characters) are automatically represented as \ (backslash) indicator.

Stage 4: CRT Restored Candidates:

Stage 5: Corrected Final Data (rxdata):

Waiting for status...

Charmsec code character mapping to 7-bit ASCII.
Featuring a 1-bit error-tolerant LF delimiter, with \ (0x5c) excluded as an error placeholder.

H. Miyakawa, Y. Iwadare, and H. Imai, Coding Theory (Computer Science Course Vol. 18), The Institute of Electronics, Information and Communication Engineers (IEICE), Corona Publishing Co., Ltd., 1973, ISBN4-88552-180-7 (in Japanese).