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Patent Agency Ranking
公开(公告)号：US20180219431A1
公开(公告)日：2018-08-02
申请号：US15885411
申请日：2018-01-31
Applicant: Apple Inc.
Inventor： Jerald Polestico Guillermo , Previn D. Nair , Mikhal S. De Jesus , Antoin J. Russell
Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a wireless power receiving coil in a resonant circuit that resonates at a wireless power receiving circuit resonant frequency. The wireless power transmitting device has coils. The coils are supplied with a drive signal in bursts to detect external objects. Measurement circuitry includes an oscillator for supplying the drive signals and a peak detector and analog-to-digital converter for gathering measurements on the coils to which the drive signals have been supplied. Rate-based-filtering is applied to output signals from the analog-to-digital converter to distinguish between temperature drift effects and object placement effects. The frequency of the drive signals is slightly greater than the wireless power receiving circuit resonant frequency.
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公开(公告)号：US11476719B2
公开(公告)日：2022-10-18
申请号：US16680678
申请日：2019-11-12
Applicant: Apple Inc.
Inventor： Jerald Polestico Guillermo , Previn D. Nair , Mikhal S. De Jesus , Antoin J. Russell
Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a wireless power receiving coil in a resonant circuit that resonates at a wireless power receiving circuit resonant frequency. The wireless power transmitting device has coils. The coils are supplied with a drive signal in bursts to detect external objects. Measurement circuitry includes an oscillator for supplying the drive signals and a peak detector and analog-to-digital converter for gathering measurements on the coils to which the drive signals have been supplied. Rate-based-filtering is applied to output signals from the analog-to-digital converter to distinguish between temperature drift effects and object placement effects. The frequency of the drive signals is slightly greater than the wireless power receiving circuit resonant frequency.
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公开(公告)号：US11515735B2
公开(公告)日：2022-11-29
申请号：US16680678
申请日：2019-11-12
Applicant: Apple Inc.
Inventor： Jerald Polestico Guillermo , Previn D. Nair , Mikhal S. De Jesus , Antoin J. Russell
Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a wireless power receiving coil in a resonant circuit that resonates at a wireless power receiving circuit resonant frequency. The wireless power transmitting device has coils. The coils are supplied with a drive signal in bursts to detect external objects. Measurement circuitry includes an oscillator for supplying the drive signals and a peak detector and analog-to-digital converter for gathering measurements on the coils to which the drive signals have been supplied. Rate-based-filtering is applied to output signals from the analog-to-digital converter to distinguish between temperature drift effects and object placement effects. The frequency of the drive signals is slightly greater than the wireless power receiving circuit resonant frequency.
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公开(公告)号：US20200083755A1
公开(公告)日：2020-03-12
申请号：US16680678
申请日：2019-11-12
Applicant: Apple Inc.
Inventor： Jerald Polestico Guillermo , Previn D. Nair , Mikhal S. De Jesus , Antoin J. Russell
Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a wireless power receiving coil in a resonant circuit that resonates at a wireless power receiving circuit resonant frequency. The wireless power transmitting device has coils. The coils are supplied with a drive signal in bursts to detect external objects. Measurement circuitry includes an oscillator for supplying the drive signals and a peak detector and analog-to-digital converter for gathering measurements on the coils to which the drive signals have been supplied. Rate-based-filtering is applied to output signals from the analog-to-digital converter to distinguish between temperature drift effects and object placement effects. The frequency of the drive signals is slightly greater than the wireless power receiving circuit resonant frequency.
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公开(公告)号：US10511197B2
公开(公告)日：2019-12-17
申请号：US15885411
申请日：2018-01-31
Applicant: Apple Inc.
Inventor： Jerald Polestico Guillermo , Previn D. Nair , Mikhal S. De Jesus , Antoin J. Russell
Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a wireless power receiving coil in a resonant circuit that resonates at a wireless power receiving circuit resonant frequency. The wireless power transmitting device has coils. The coils are supplied with a drive signal in bursts to detect external objects. Measurement circuitry includes an oscillator for supplying the drive signals and a peak detector and analog-to-digital converter for gathering measurements on the coils to which the drive signals have been supplied. Rate-based-filtering is applied to output signals from the analog-to-digital converter to distinguish between temperature drift effects and object placement effects. The frequency of the drive signals is slightly greater than the wireless power receiving circuit resonant frequency.
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