Method and apparatus to authenticate a power supply
First Claim
Patent Images
1. An external power supply of an electronic product that modulates an output of the power supply with information encoded to identify the power supply to the product.
1 Assignment
0 Petitions
Accused Products
Abstract
A power supply that can be authenticated is disclosed. An apparatus according to aspects of the present invention includes an external power supply of an electronic product that modulates an output of the power supply with information encoded to identify the power supply to the product.
44 Citations
19 Claims
-
1. An external power supply of an electronic product that modulates an output of the power supply with information encoded to identify the power supply to the product.
-
2. A system, comprising:
-
an external power supply having an external power supply output; and
an electronic product coupled to the power supply output to receive power from the external power supply, wherein the electronic product is coupled to identify the power supply by interpreting information encoded on the power supply output.
-
-
3. A switching power supply having a switching frequency and a switching power supply output, the switching frequency coupled to change in a pattern that identifies the switching power supply to an electronic product to be coupled to receive power from the switch power supply output.
- 4. A switching power supply having a switching power supply output, the switching power supply coupled to change a magnitude of the switching power supply output in a pattern that identifies the switching power supply to an electronic product to be coupled to receive power from the switching power supply output.
- 16. A power supply of an electronic product that modulates an output of the power supply with information encoded to provide information regarding the operation of the power supply.
Specification