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Apparatus, system and method of controlling data flow over a communication network

  • US 10,200,515 B2
  • Filed: 10/12/2017
  • Issued: 02/05/2019
  • Est. Priority Date: 11/22/2012
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a memory; and

    a processor configured to cause a Universal Serial Bus (USB) Protocol Adaptation Layer (PAL) device of a media-agnostic connectivity PAL to;

    process a transfer request from a USB PAL host, the transfer request to initiate transfer of data from a USB endpoint of a USB device to the USB PAL host, the transfer request comprising a request identifier (ID); and

    when data receipt from the USB device is delayed, cause to transmit a transfer response with no data payload to the USB PAL host, the transfer response comprising a transfer pending status code to indicate that the data is delayed and pending to be received from the USB device and that the USB PAL host is to reset a retransmission counter and wait an extended retransmission period prior to retransmitting the transfer request, the transfer response comprising a same request ID as the request ID in the transfer request.

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