Advertisement
Quick Links
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.
Advertisement
Summary of Contents for A-FOUR TECH RFW-5
- Page 1 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.
- Page 2 Antenna L,M,R,K4,K5 Micro Data Oscilator Button Processor Colpits Axis-X Switch to Bandpass Power filter Channel 1 Axis-Y Control (27.045MHz) Wheel-X Wheel-X Chennel 2 (27.145MHz) Wheel-Y Wheel-Y A-FOUR TECH CO.,LTD. RFW-5 Wireless Radio Wheel Mouse 6F,NO.108.Min-Chuan Rd., (Transmitter) Hsin-Tien,Taipei,Taiwan,R.O.C. TEL:886-2-2218-4952 FAX:886-2-2218-9908...