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AssigneeMicrosoft Corporation
InventorsLyndsay Williams, William Vablais, Steven N. Bathiche
Estimating the term…
Methods and apparatus for distributing power and data to devices coupled to the human body are described. The human body is used as a conductive medium, e.g., a bus, over which power and/or data is distributed. Power is distributed by coupling a power source to the human body via a first set of electrodes. One or more devise to be powered, e.g., peripheral devices, are also coupled to the human body via additional sets of electrodes. The devices may be, e.g., a speaker, display, watch, keyboard, etc. A pulsed DC signal or AC signal may be used as the power source. By using multiple power supply signals of differing frequencies, different devices can be selectively powered. Digital data and/or other information signals, e.g., audio signals, can be modulated on the power signal using frequency and/or amplitude modulation techniques.
A network of devices comprising:
A network device, comprising
A device comprising:
A method of powering a device, comprising:
A method of transmitting information to a device coupled to a body of a living creature, comprising:
A method of operating a network using a body of a living creature as a bus, comprising:
A method of transmitting signals between first and second devices coupled to the body of a living creature, comprising:
The method 50, wherein the second device controls the voltage of the second signal to be higher when the measured voltage is a first value and to be lower when the measured voltage is a second value, the second value being greater than the first value.
The method 50, wherein the second device controls the duty cycle of the second signal to be longer when the measured voltage is a first value and to be shorter when the measured voltage is a second value, the second value being greater than the first value.
Dependencies are inferred from the claim text.