Title: Positive and negative semi-cycle two-path amplitude modulation technology and modulator and demodulator relative circuit thereof
Application Number: 02121365 Application Date: 2002.06.17
Publication Number: 1419335 Publication Date: 2003.05.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03C1/36,H03D1/10
Applicant(s) Name: Shi Mengqi Address: 102206
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The present invention relates to a wireless signal amplitude-modulated transmission technology and an electric circuit associated with the modulation and the demodulation device. The invention utilizes two-way signals to modulate the amplitude no the plus half-cycle and the minus half-cycle of high frequency constant amplitude signal respectively. After emitting and receiving the signals with the ordinary emitting equipment, it uses two reverse diodes to checkout the signals respectively modulated by the plus half-period and the minus half-cycle. Then after the process of filtration and magnification it can reduce the original two-way signals. It thiw way, a modulated wave can transmit two-way different signals simultaneously, thus economizing frequency resource and increasing the emitting efficiency.
Time: 18
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