Power transmitting apparatus, power receiving apparatus, control methods thereof, and program
AssigneeCanon Kabushiki Kaisha
InventorsNaoto Takahashi, Tadashi Eguchi
Life of this patent
Estimating the term…
Abstract
A power transmitting apparatus that transmits power to a power receiving apparatus executes intermittent wireless transmission of power. The power transmitting apparatus operates according to one of a first power transmitting method including detecting a signal load-modulated by the power receiving apparatus using an ID in response to the transmitted power during the intermittent transmission and a second power transmitting method including transmitting the power having modulated the power according to an ID determined in advance so that the power receiving apparatus detects the ID determined in advance.
Claims13
to 50. (canceled)
A power transmitting apparatus that transmits power to a power receiving apparatus, the power transmitting apparatus comprising:
- a power transmission unit configured to execute first wireless power transmission intermittently using a first antenna, second wireless power transmission having a longer period than a period of the first wireless power transmission using the first antenna and third wireless power transmission having larger amount of power than amount of power of the first wireless power transmission or the second wireless power transmission using the first antenna;
- a detection unit configured to detect impedance change;
- a communication unit configured to execute, using a second antenna different from the first antenna, communications with the power receiving apparatus to determine whether to execute the third wireless power transmission,
- wherein the power transmission unit starts the second wireless power transmission in a case where the detection unit detects impedance change during the first power transmission, and the power transmission unit starts the third wireless power transmission in a case where it is determined that the third wireless power transmission is executed by a communication by the communication unit after the second wireless power transmission is started.
A control method for a power transmitting apparatus that transmits power to a power receiving apparatus, the method comprising:
- executing first wireless power transmission intermittently using a first antenna, second wireless power transmission having a longer period than a period of the first wireless power transmission using the first antenna, and third wireless power transmission having larger amount of power than amount of power of the first wireless power transmission or the second wireless power transmission using the first antenna;
- detecting impedance change;
- and
- executing, using a second antenna different from the first antenna, communications with the power receiving apparatus to determine whether to execute the third wireless power transmission,
- wherein the second wireless power transmission is started in a case where impedance change is detected during the first power transmission, and the third wireless power transmission is started in a case where it is determined that the third wireless power transmission is executed by the communications after the second wireless power transmission is started.
A non-transitory computer-readable storage medium storing a program that causes a computer to:
- execute first wireless power transmission intermittently using a first antenna, second wireless power transmission having a longer period than a period of the first wireless power transmission using the first antenna, and third wireless power transmission having larger amount of power than amount of power of the first wireless power transmission or the second wireless power transmission using the first antenna;
- detect impedance change;
- and
- execute, using a second antenna different from the first antenna, communications with the power receiving apparatus to determine whether to execute the third wireless power transmission,
- wherein the program causes the computer to start the second wireless power transmission in a case where impedance change is detected during the first power transmission, and start the third wireless power transmission in a case where it is determined that the third wireless power transmission is executed by the communications after the second wireless power transmission is started.
Dependencies are inferred from the claim text.