Patent ID: 11803498

Abstract:
In some embodiments, a system for communicating USB information via a non-USB extension medium is provided. The system comprises an upstream facing port device (UFP device) and a downstream facing port device (DFP device). The DFP device is configured to receive, from the UFP device via the extension medium, a first ACK IN packet addressed to a first endpoint and a second ACK IN packet addressed to a second endpoint after receiving the first ACK IN packet. In response to detecting that the USB-compliant connection is available, the DFP device compares a bInterval value for the first endpoint to a bInterval value for the second endpoint; and in response to determining that the bInterval value for the second endpoint is smaller than the bInterval value for the first endpoint, the DFP device transmits a synthetic ACK IN packet to the second endpoint based on the second ACK IN packet.