Power injector detection
AssigneeCisco Technology, Inc.
InventorsChad Jones, Corey Metsker
Life of this patent
Estimating the term…
Abstract
In one embodiment, a signal detector is coupled to an external power source. The signal detector is configured to ascertain whether a predetermined signal was received from the external power source. Control logic is coupled to the signal detector and to the external power source. The control logic is responsive to the signal detector to determine a characteristic of the external power source based on whether the signal detector detected the predetermined signal. The characteristics of the external power supply can be determined based on the frequency, amplitude and duration of a signal received from the power injector. This enables the control logic to determine the power available from an unknown power supply and to configure a device to operate accordingly.
Claims20
A system, comprising:
- a power source;
- control logic coupled to the power source;
- and
- a signal generator coupled to the power source and the control logic;
- wherein the signal generator is responsive to the control logic to transmit a predetermined signal having a signal parameter for providing information corresponding to at least one characteristic of the power source.
A non-transitory computer readable medium with instructions stored thereon for execution by a processor, and when executed by a processor operable to:
- obtain data representative of at least one characteristic of an associated power supply;
- and
- cause a tone signal to be transmitted with a power signal to a device receiving power from the associated power supply, the tone signal having at least one parameter for providing information corresponding to the at least one characteristic of the associated power supply.
A method, comprising:
- providing a power signal to a powered device;
- obtaining data representative of at least one characteristic of an associated power supply;
- and
- transmitting a tone signal having at least one parameter for providing information corresponding to the at least one characteristic of the power supply;
- wherein the tone signal is sent with the power signal to the powered device.
Dependencies are inferred from the claim text.