Virtualized physical layer adapted for EHF contactless communication

• US 10,419,075 B2
• Filed: 07/19/2017
• Issued: 09/17/2019
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Molex LLC (KOCH Industries Incorporated)
• Original Assignee: Keyssa, Inc.
• Inventors: McCormack, Gary D., Kyles, Ian A., Isaac, Roger D.
• Primary Examiner(s): Yun, Eugene
• Application Number:
  US15/653,943
• Publication Number:
  US 20170318618A1
• Time in Patent Office: 790 Days
• Field of Search: 455 411
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/14 Direct-mode setup

Abstract

A Physical Layer (PHY) of a host system of an electronic device may be implemented as a contactless PHY (cPHY) for extremely high frequency (EHF) contactless communication and the operation of EHF transmitters (TX), receivers (RX) and transceivers (EHF-XCVR) in an extremely high frequency integrated circuit (EHF IC) of the electronic device. The Host-cPHY translates logical communications requests from the Link Layer (LINK) into hardware-specific operations to affect transmission or reception of signals over an EHF contactless link. The Link Layer (LINK) may also be optimized as a contactless Link Layer (cLINK) for EHF contactless communication. A virtualized contactless Physical Layer (VcPHY) may comprise a contactless Physical Layer (Host-cPHY), and a contactless Link Layer (cLINK) for coupling a conventional Link Layer (LINK) with the contactless Physical Layer (Host-cPHY). Multiple data streams may be transported over the EHF contactless link over a range of frequencies.

Claims

1. A first device for use in contactlessly communicating with a second device, the first device comprising:

a plurality of Standards-based Data Link Layers (LINKs);

a first virtualized contactless link-based Physical Layer (VcPHY);

a switch operative to route data streams between the plurality of LINKs and the first VcPHY such that the first VcPHY simultaneously supports data streams associated with each of the plurality of LINKs.

2. The first device of claim 1, wherein the switch is operative to route the data streams without modifying data in the data streams provided by the plurality of LINKs.

3. The first device of claim 1, wherein the switch is operative to route the data streams without modifying control/management data provided by the plurality of LINKs.

4. The first device of claim 1, wherein the first VcPHY comprises:

a contactless Link Layer (cLINK); and

a contactless Physical layer (Host-cPHY), wherein the cLINK couples the data stream originating from any one of the plurality of LINKs to the Host-cPHY.

5. The first device of claim 1, further comprising:

a contactless EHF IC coupled to the first VcPHY, the contactless EHF IC comprising a transceiver (EHF-XCVR) for contactlessly communicating with the second device.

6. The first device of claim 1, wherein the plurality of LINKs operate according to a Standards'"'"' specification selected from the group consisting of Display Port, HDMI, PCIe, Ethernet, and USB.

7. A first device for use in contactlessly communicating with a second device, the first device comprising:

a plurality of Standards-based Data Link Layer (LINKs);

a plurality of virtualized contactless link-based Physical Layer (VcPHYs);

a switch operative to route data streams between the plurality of LINKs and the plurality of VcPHYs without functionally modifying stream data and control/management data originating from each of the plurality of LINKs.

8. The first device of claim 7, wherein the switch multiplexes data streams associated with at least two of the plurality of LINKs over one of the VcPHYs.

9. The first device of claim 7, wherein the switch multiplexes data streams associated with at least three of the plurality of LINKs over one of the VcPHYs.

10. The first device of claim 7, wherein the switch multiplexes data streams associated with at least four of the plurality of LINKs over one of the VcPHYs.

11. The first device of claim 7, wherein the switch multiplexes a data stream associated with one of the LINKs over at least two of the VcPHYs.

12. The first device of claim 7, wherein each of the plurality of VcPHYs comprises:

a contactless Link Layer (cLINK); and

a contactless Physical layer (Host-cPHY), wherein the cLINK couples the data stream originating from at least one of the plurality of LINKs to the Host-cPHY.

13. The first device of claim 7, further comprising:

a contactless EHF IC coupled to each of the pluralities of VcPHYs, the contactless EHF IC comprising a transceiver (EHF-XCVR) for contactlessly communicating with the second device.

14. The first device of claim 7, wherein the plurality of LINKs operate according to a Standards'"'"' specification selected from the group consisting of Display Port, HDMI, Ethernet, PCIe and USB.

15. A first device for use in contactlessly communicating with a second device, the first device comprising:

a Standards-based Data Link Layer (LINK);

a plurality of virtualized contactless link-based Physical Layer (VcPHYs); and

a switch operative to route a data stream between the LINK and the plurality of VcPHYs such that at least two of the plurality of VcPHYs collectively support a bandwidth associated with the LINK.

16. The first device of claim 15, wherein the bandwidth of the LINK exceeds a bandwidth of any one VcPHY.