THE PORTABLE WIRELESS CIPHER TRANSCEIVER USING THE ISM BAND FREQUENCY

摘要

The subject innovation will output a code or password arrangements in advance to a modulator and to decode the signal from the demodulator to drive the light emitting diode or a vibrator a code or password from the control section to display the code or password agreement in advance, the control section and a modulator for modulation into RF signals in the ISM band by the local oscillation frequency of the local oscillator, which amplifies the RF signal from the modulator to a predetermined level for wireless transmission to an amplification section and, an RF signal received through an antenna provided to the antenna the LNA for amplifying to a predetermined level, the RF signal from the LNA to the local oscillation frequency and the mixed code or demodulates the password, and amplified according to the demodulator and transmit or receive mode to provide them to the control part and the LNA of the local oscillator to the antenna It consists of a switch to selectively connect.; According to the present invention has the advantage of being able to communicate at close range by a code or password prior commitments regardless of age or gender without disturbing anyone close to each other and his men. In addition, it has the advantage that not only can feel the intimacy, such as by passing a lover or close friends, even doctors and feelings Nobody knows the code or password of another promise between personal privacy be maintained.