Patent ID: 8823217

Claim:
A one-to-many wireless energy transmission system, comprising: at least a resonance receiving coil; and a resonance transmission coil having a resonance frequency and using a characteristic dimension to indicate a work range, said work range covering an area or volume larger than or equal to the total area or volume of each of said at least a resonance receiving coil, a magnetic field density within said work range of said resonance transmission coil having sufficient uniformity for each of said at least a resonance receiving coil to uniformly receive a minimum required energy to function normally without interfering each other regardless of locations within said work range; wherein each of said at least a resonance receiving coil is further connected in parallel with a resonance frequency control element and an energy detection circuit is connected between the resonance receiving coil and a subsequent circuit; said energy detection circuit receives a signal indicating said minimum required energy from said subsequent circuit and generates a feedback signal to control said resonance frequency control element to off-tune the resonance receiving coil so as to reduce resonance-receiving capability of the resonance receiving coil to only receive said minimum required energy to operate independently and not interfering with each other.