USB CHARGING WITH DATA COMMUNICATION
First Claim
1. A method of communicating digital data between a powered device and a charging device via a universal serial bus (USB), the method comprising:
- conducting a handshaking period between the powered device and the charging device via the USB;
initiating a mode of normal operation of the charging device that includes the charging device providing power to the powered device from a power supply included in the charging device via the USB after an end of the handshaking period; and
communicating the digital data between the powered device and the charging device via the USB during a time period that starts with the end of the handshaking period and ends with a beginning of the mode of normal operation.
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Accused Products
Abstract
A process is disclosed for communicating digital data between a powered device and a charging device via a universal serial bus (USB). The process includes conducting a handshaking period between the powered device and the charging device via the USB. The powered device initiates a mode of normal operation of the charging device after an end of the handshaking period. The charging device communicates digital data (e.g., available power levels) between the powered device and the charging device during a time period that starts with the end of the handshaking period and ends with a beginning of the mode of normal operation.
27 Citations
28 Claims
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1. A method of communicating digital data between a powered device and a charging device via a universal serial bus (USB), the method comprising:
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conducting a handshaking period between the powered device and the charging device via the USB; initiating a mode of normal operation of the charging device that includes the charging device providing power to the powered device from a power supply included in the charging device via the USB after an end of the handshaking period; and communicating the digital data between the powered device and the charging device via the USB during a time period that starts with the end of the handshaking period and ends with a beginning of the mode of normal operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 22, 24, 25, 26, 27, 28)
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12. A non-transitory machine-readable medium including program code stored thereon for communicating digital data between a powered device and a charging device via a universal serial bus (USB), the program code comprising instructions to:
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conduct a handshaking period between the powered device and the charging device via the USB; initiate a mode of normal operation of the charging device that includes the charging device providing power to the powered device from a power supply included in the charging device via the USB after an end of the handshaking period; and communicate the digital data between the powered device and the charging device via the USB during a time period that starts with the end of the handshaking period and ends with a beginning of the mode of normal operation.
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18. The medium of claim 18, further comprising instructions to identify the powered device in response to the pattern of voltage level toggles.
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23. A charging device, comprising:
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a Universal Serial Bus (USB) port; a power supply converter coupled to the USB port; a USB communication module configured to direct the charging device to; conduct a handshaking period between the powered device and the charging device via the USB port; initiate a mode of normal operation of the charging device that includes the charging device providing power to the powered device from the power supply via the USB port after an end of the handshaking period; and communicate the digital data between the powered device and the charging device via the USB port during a time period that starts with the end of the handshaking period and ends with a beginning of the mode of normal operation.
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Specification