COMMUNICATION METHOD OF INFRARED REMOTE CONTROLLER DATA AND LEARNING TYPE INFRARED REMOTE CONTROLLER

摘要

PROBLEM TO BE SOLVED: To transfer data even if a communication speed with a host CPU is low (USB Ver1.1 Low Speed) in a infrared remote controller.;SOLUTION: Communication between the host CPU and an infrared control device is performed by encoding a signal to PD (Proportional Derivative) number data (sequence data) corresponding to respective pulse data, and compressing them. The encoding and decoding are performed referring a table in which the pulse data and the PD number correspond, if a PD number is expressed by 4 bits, the table can contain 16 kinds of the pulse data at maximum, and compress the communication data amount to 1/8.;COPYRIGHT: (C)2007,JPO&INPIT