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公开(公告)号：US12278503B2
公开(公告)日：2025-04-15
申请号：US18484885
申请日：2023-10-11
Applicant: Apple Inc.
Inventor： Adam L. Schwartz , Niloofar Rashidi Mehrabadi , Hossein Sepahvand
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device uses a wireless power transmitting coil to transmit wireless power signals to the wireless power receiving device. The wireless power transmitting device determines whether an external object is present. The external object may be a foreign object such as a coin or paperclip or may be a wireless power receiving device. External objects are detected using quality-factor measurements. Wireless communications are used to discriminate between foreign objects and wireless power receiving devices. Quality factor measurements may be compensated for aging and temperature effects using temperature measurements and compensation factors based on frequency and measured resistance.
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公开(公告)号：US20230307961A1
公开(公告)日：2023-09-28
申请号：US18327721
申请日：2023-06-01
Applicant: Apple Inc.
Inventor： Adam L. Schwartz , Niloofar Rashidi Mehrabadi , Hossein Sepahvand
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device uses a wireless power transmitting coil to transmit wireless power signals to the wireless power receiving device. The wireless power transmitting device determines whether an external object is present. The external object may be a foreign object such as a coin or paperclip or may be a wireless power receiving device. External objects are detected using quality-factor measurements. Wireless communications are used to discriminate between foreign objects and wireless power receiving devices. Quality factor measurements may be compensated for aging and temperature effects using temperature measurements and compensation factors based on frequency and measured resistance.
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Patent Agency Ranking
公开(公告)号：US12261459B2
公开(公告)日：2025-03-25
申请号：US18327750
申请日：2023-06-01
Applicant: Apple Inc.
Inventor： Adam L. Schwartz , Niloofar Rashidi Mehrabadi , Hossein Sepahvand
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device uses a wireless power transmitting coil to transmit wireless power signals to the wireless power receiving device. The wireless power transmitting device determines whether an external object is present. The external object may be a foreign object such as a coin or paperclip or may be a wireless power receiving device. External objects are detected using quality-factor measurements. Wireless communications are used to discriminate between foreign objects and wireless power receiving devices. Quality factor measurements may be compensated for aging and temperature effects using temperature measurements and compensation factors based on frequency and measured resistance.
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公开(公告)号：US20210167637A1
公开(公告)日：2021-06-03
申请号：US17109793
申请日：2020-12-02
Applicant: Apple Inc.
Inventor： Adam L. Schwartz , Niloofar Rashidi Mehrabadi , Hossein Sepahvand
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device uses a wireless power transmitting coil to transmit wireless power signals to the wireless power receiving device. The wireless power transmitting device determines whether an external object is present. The external object may be a foreign object such as a coin or paperclip or may be a wireless power receiving device. External objects are detected using quality-factor measurements. Wireless communications are used to discriminate between foreign objects and wireless power receiving devices. Quality factor measurements may be compensated for aging and temperature effects using temperature measurements and compensation factors based on frequency and measured resistance.
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公开(公告)号：US20240039341A1
公开(公告)日：2024-02-01
申请号：US18484885
申请日：2023-10-11
Applicant: Apple Inc.
Inventor： Adam L. Schwartz , Niloofar Rashidi Mehrabadi , Hossein Sepahvand
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device uses a wireless power transmitting coil to transmit wireless power signals to the wireless power receiving device. The wireless power transmitting device determines whether an external object is present. The external object may be a foreign object such as a coin or paperclip or may be a wireless power receiving device. External objects are detected using quality-factor measurements. Wireless communications are used to discriminate between foreign objects and wireless power receiving devices. Quality factor measurements may be compensated for aging and temperature effects using temperature measurements and compensation factors based on frequency and measured resistance.
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公开(公告)号：US11831178B2
公开(公告)日：2023-11-28
申请号：US18327721
申请日：2023-06-01
Applicant: Apple Inc.
Inventor： Adam L. Schwartz , Niloofar Rashidi Mehrabadi , Hossein Sepahvand
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device uses a wireless power transmitting coil to transmit wireless power signals to the wireless power receiving device. The wireless power transmitting device determines whether an external object is present. The external object may be a foreign object such as a coin or paperclip or may be a wireless power receiving device. External objects are detected using quality-factor measurements. Wireless communications are used to discriminate between foreign objects and wireless power receiving devices. Quality factor measurements may be compensated for aging and temperature effects using temperature measurements and compensation factors based on frequency and measured resistance.
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公开(公告)号：US20230307962A1
公开(公告)日：2023-09-28
申请号：US18327750
申请日：2023-06-01
Applicant: Apple Inc.
Inventor： Adam L. Schwartz , Niloofar Rashidi Mehrabadi , Hossein Sepahvand
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device uses a wireless power transmitting coil to transmit wireless power signals to the wireless power receiving device. The wireless power transmitting device determines whether an external object is present. The external object may be a foreign object such as a coin or paperclip or may be a wireless power receiving device. External objects are detected using quality-factor measurements. Wireless communications are used to discriminate between foreign objects and wireless power receiving devices. Quality factor measurements may be compensated for aging and temperature effects using temperature measurements and compensation factors based on frequency and measured resistance.
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