UPDATE DATA RECORDING DEVICE, UPDATE DATA TRANSMISSION AND RECEPTION SYSTEM, UPDATE DATA RECODING METHOD, AND UPDATE DATA TRANSMITTING AND RECEIVING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technique for program data update which lightens the burden of updating operation, is safe, and never increase the burden of costs when control data of equipment which is audio equipment or video equipment having no digital input terminal and operates based on a program recorded in a memory need to be updated.;SOLUTION: This recording device is provided with an analog input terminal which receives an external analog signal, an A/D converter which converts the analog signal into a digital signal and outputs it, a CPU which extracts update data of the program from the digital signal and outputs them, and a memory in which the outputted data are recorded.;COPYRIGHT: (C)2003,JPO