A-FOUR TECH RFW-5 Оперативное описание

Просмотреть онлайн или скачать pdf Оперативное описание для Мышь A-FOUR TECH RFW-5. A-FOUR TECH RFW-5 2 страницы. Wireless radio wheel mouse

Печатать страницу

An Operational Description

The RF mouse transmitted by use FSK (Frequency Shift Key) radio frequcy technology to operate a special designed receiver which associated with an

IBM compatible PC. The FSK Technology is a kind of FM modulation. The modulation depth was designed by the manufacture, such as + 3KHz that

means the series digital data 0 or 1 were transnitted as carrier frequency minus 3 KHz or plus 3KHz. In the block diagram locatin A (please refer to the

next page) which was series digital data as usual. The location B was modulated by FSK. And then the carrier frequency was slected by a switch.