| 摘要 |
A radio transmitter appts. for sending multiple coordinate information signals, comprises a device for receiving multiple coordinate data including two coordinate signals and a generating device, responsive to received first and second coordinate signals, for generating a three-pulse wireless signal including a first pulse as a start pulse, a second pulse separated from the start pulse by a time proportional to the first coordinate signal, and a third pulse separated from the second pulse by a time proportional to the second coordinate signal. The first device generates and outputs the first coordinate signal to the receiver, and a second device generates and outputs the second coordinate signal to the receiver. The generator includes a clock signal device, and a device for generating the start pulse. A device, responds to the start pulse and the clock signal for converting the first coordinate signal to the second pulse. A converter responds to the first coordinate signal and the clock signal, for converting the second coordinate signal to the third pulse. |
