Method and apparatus to facilitate transmission of an encrypted rolling code

摘要

METHOD AND APPARATUS TO FACILITATE TRANSMISSION OF AN ENCRYPTED ROLLING CODE Abstract of the Disclosure An encrypted rolling code (11), a plurality of differing data bit order patterns (13), and a plurality of differing data inversion patterns 14) are provided. One then selects (15) a particular one of each of these patterns and uses those selected patterns as transmission characteristics when transmitting (16) at least part of the encrypted rolling code. PROVIDE AN ENCRYPTED ROLLING CODE 12- PROVIDE A FIXED CODE PROVIDE A PLURALITY OF DIFFERING DATA BIT ORDER PATTERNS PROVIDE A PLURALITY OF DIFFERING DATA INVERSION PATTERNS SELECT A PARTICULAR DATA BIT ORDER PATTERN AND DATA INVERSION PATTERN 16-f TRANSMIT AT LEAST A PART OF THE CODE(S) USING THE SELECTED PATTERNS AS TRANSMISSION CHARACTERISTICS (WIRELESS REMOTE CONTROL TRANSMITTER) 21-,f PROVIDE DATA TO BE TRANSMITTED COMPRISING AN ENtRYPTED ROLLING CODE - A PARTICULAR DATA BIT ORDER PATTERN GIVEN PORTION - A PARTICULAR DATA LLN CYPTD INVERSION PATTERN STORE THE DATA TRANSMIT THE DATA WITH THE GIVEN PORTION OF THE ENCRYPTED ROLLING CODE TRANSMITTED WITHOUT BIT REORDERING OR INVERTING