Hand-held radio remote control device for computer multimedia courseware
A technology of multimedia courseware and radio remote control, which is applied to electrical components, near-field transmission systems using transceivers, transmission systems, etc., can solve the problem that multimedia courseware remote control is limited to page turning of Microsoftpowerpoint, Microsoftword and AdobePDF documents, whether it is impossible to demonstrate and Issues such as playback and volume can be remotely controlled at will, achieving the effects of easy portability, low cost, and convenient use
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[0013] The principle and structure of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0014] exist figure 1 Among them, this embodiment includes a radio transmitting device I, a radio receiving device II and a computer IV for running multimedia courseware, and the radio transmitting device I is designed to transmit radio modulation composed of address code, data code and synchronous code during work. The radio encoding module and transmitting module of the signal, in the radio receiving device II are designed a receiving module, a decoding module and a control unit for receiving and processing radio modulation signals, the encoding module adopts the PT2262 chip, the signal processing adopts the LM358 chip, and the decoding module adopts the PT2272 temporarily The storage chip, the terminal of the control unit adopts a DC relay, the radio receiving device II is connected with the keyboard III of the...
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