Contactless audio adapter, and methods
A contactless, electromagnetic (EM) replacement for cabled Standards-based interfaces (such as USB, I2S) which handles data transfer requirements associated with the Standard, and capable of measuring and replicating relevant physical conditions on data lines so as to function compatibly and transparently with the Standard. A contactless link between devices having transceivers. A non-conducting housing enclosing the devices. A dielectric coupler facilitating communication between communications chips. Conductive paths or an inductive link providing power between devices. An audio adapter communicates over a contactless link with a source device, and via a physical link with a destination device such as a conventional headset. Power may be provided to the adapter from the source device, and by the adapter to the destination device.
1. An adapter for providing a communications link between a first device which comprises at least a source of electronic signals and a second device which comprises at least a destination for electronic signals, the adapter comprising:
an interface for coupling with the second device; and
contactless communications circuitry electrically coupled to provide signals to the interface, the contactless communications circuitry communicates EHF signals contactlessly with the first device over an anisotropic physical path through a dielectric medium, wherein the anisotropic physical path through the dielectric medium is characterized by a point-to-point contactless communications scheme that has an effective range on the order of one centimeter when the dielectric medium is air.
2. The adapter of claim 1 , further comprising a power source coupled to supply power to the contactless communications circuitry.
3. The adapter of claim 2 , wherein the power source comprises an inductive coil.
4. The adapter of claim 1 , further comprising at least one contact designed to interface with at least one of the first and second devices to receive power therefrom, wherein the at least one contact is coupled to the contactless communications circuitry.
5. The adapter of claim 1 , wherein the interface is a physical interface.
6. The adapter of claim 5 , wherein the physical interface is a mechanical connector.
7. The adapter of claim 1 , further comprising:
conversion circuitry coupled to the interface and the contactless communications circuitry, the conversion circuitry operative to convert signals received by the contactless communications circuitry into a format suitable for the interface.
8. The adapter of claim 1 , wherein the contactless communications circuitry comprises at least one of a receiver and a transmitter.
9. The adapter of claim 1 , further comprises:
circuitry for decoding and dividing a single encoded digital stream representing constituent signals of a multi-wire standards-based electrical interface into replicas of original constituent signals sourced by the first device.
10. The adapter of claim 1 , wherein the first device further comprises:
circuitry for encoding and combining constituent signals of a multi-wire standards-based electrical interface into a single encoded digital stream for transport over the dielectric medium.
11. A method for using an adapter to provide a communications link between a first device which comprises at least a source of electronic signals and a second device which comprises at least a destination for electronic signals, the adapter comprising contactless communications circuitry and an interface for coupling with the second device, the method implemented in the adapter, comprising:
contactlessly receiving, via the contactless communications circuitry, electronic signals from the first device over an anisotropic physical path through a dielectric medium, wherein the anisotropic physical path through the dielectric medium is characterized by a point-to-point contactless communications scheme that has an effective range on the order of one centimeter when the dielectric medium is air; and
providing the contactlessly received signals to the interface.
12. The method of claim 11 , further comprising:
coupling the adapter to the second device via the interface.
13. The method of claim 11 , further comprising:
converting the contactlessly received signals into a format suitable for the interface, wherein the converted contactlessly received signal are provided to the second device via the interface.
14. The method of claim 11 , further comprising:
receiving power from at least one of the first device and second device.
15. The method of claim 14 , wherein the received power is received via an inductive coil.
16. The method of claim 14 , wherein the received power is received via an electrical contact.
17. A method for using an adapter to provide a communications link between a first device which comprises at least a source of electronic signals and a second device which comprises at least a destination for electronic signals, the adapter comprising contactless communications circuitry and an interface for coupling with the first device, the method implemented in the adapter, comprising:
receiving electronic signals, from the first device, at the interface; and
contactlessly transmitting, via the contactless communications circuitry, electronic signals received at the interface over an anisotropic physical path through a dielectric medium to the second device, wherein the anisotropic physical path through the dielectric medium is characterized by a point-to-point contactless communications scheme that has an effective range on the order of one centimeter when the dielectric medium is air.
18. The method of claim 17 , further comprising:
converting the received electronic signals into a format suitable for the contactless communications circuitry, wherein the converted contactlessly received signal are provided to the contactless communications circuitry.
19. The method of claim 17 , further comprising:
receiving power from at least one of the first device and second device.