Power transmission apparatus, power reception apparatus, control method performed by power transmission apparatus, control method performed by power reception apparatus, and storage medium

A power transmission apparatus, comprising:

• at least one processor;
• and
• at least one memory in communication with the at least one processor, storing instructions that, when executed by the at least one processor, cause the at least one processor to:
• perform negotiation with a power reception apparatus in a negotiation phase;
• wirelessly transmit power to the power reception apparatus in a power transfer phase after the negotiation phase;
• if predetermined information is received from the power reception apparatus in the power transfer phase, restrict transmission of the power;
• and
• detect an object in a period in which the transmission of the power is restricted, wherein
• after an end of the period in which the transmission of the power is restricted, resume the transmission of the power in the power transfer phase without going through the negotiation phase.