Patent ID: 9363118
Filing Date: 2016-06-07
CPC Classification: H03C,H03D,H04B,H04L,Y02D

Claim Text:
1. A non-contact power supply transmitter system configured to transmit an electric power from a transmitting device to a receiving device with a non-contact power supply transmitter method, the transmitting device comprising: the receiving device comprising: the frequency shift keying demodulation unit comprises: a rectangular-wave generating circuit configured to input the frequency shift keying signal received through the receiving coil so as to be generated as a rectangular-wave signal therefrom, the frequency shift keying signal comprising a first level signal and a second level signal, the rectangular-wave signal comprising a first rectangular-wave signal based on the first level signal and a rectangular-wave signal based on the second level signal; a frequency/voltage conversion circuit configured to convert a variation in a frequency of the rectangular-wave signal into voltage so as to be output as a frequency/voltage converted signal, the frequency/voltage converted signal comprising a first frequency/voltage converted signal based on the rectangular-wave signal and a second frequency/voltage converted signal based on the second above-mentioned rectangular-wave signal; a band pass filter configured to allow the variation in the frequency of the frequency/voltage converted signal to pass through so as to be output as a band-pass-filtered signal; an amplifier circuit configured to amplify an amplitude of the band-pass-filtered signal so as to be output as an amplified signal; and an output determining circuit configured to output an existence or nonexistence of the variation in the frequency of the amplifier circuit so as to be output as a frequency shift keying output signal, the frequency shift keying output signal being a signal of “0” or “1” wherein the amplified signal comprises a first amplified waveform having a first time period at the time of when the second frequency/voltage converted signal is switched to the first frequency/voltage converted signal, and a second amplified waveform having a second time period at the time of when the first frequency/voltage converted signal is switched to the second frequency/voltage converted signal, wherein the output determining circuit outputs one of the frequency shift keying output signal during a third time period and the frequency shift keying output signal during a fourth time period as the signal of “0”, and outputs the other thereof as the signal of “1”, wherein the third time period is a time period from a trailing edge of the first amplified waveform to a trailing edge of the subsequent second amplified waveform, and the fourth time period is a time period from the trailing edge of the second amplified waveform to a trailing edge of the subsequent first amplified waveform.