| 摘要 |
PURPOSE:To manage and control plural input data by a reception part by varying frequencies according to different input data and transmitting the data on a transmission side and recognizing the transmission side from the frequency of reception data on a reception side. CONSTITUTION:The data inputted from a key input part 2 is changed to the frequency allocated every input device by a carrier wave frequency varying circuit 3 and is transmitted from an infrared ray transmission part 4. The data inputted in a ball part 6 is changed to an allocated frequency by a carrier wave frequency varying circuit 7 and is transmitted from an infrared ray transmission part 8. The infrared ray reception part 10 of a personal computer main body 9 receives transmission data from transmission parts 4 and 8, detects the difference of the frequency of data by a control circuit 11, recognizes which device data is transmitted from, and controls each of a printer 12, a monitor 13, a CPU 14 and a storage device 15. Thus, the data from plural input means can be managed and controlled by a reception part. |
