Frame structure for aggregated data over a half-duplex serial data channel

Abstract

A frame structure is described for aggregated data over a half-duplex serial data channel. In an example a serial link modem includes a transmit modem coupled to a serial channel and configured to send serial data through the serial channel, and an aggregator coupled to the transmit modem and configured to form a first frame type of serial data configured for data other than Universal Serial Bus (USB) data having an upstream packet and a downstream packet and a total length of less than a latency of two USB hubs, and a second frame type of serial data configured for USB data, wherein the aggregator forms the second frame type upon receiving USB data and wherein the transmit modem is configured to transmit the first frame type through the serial channel, and to transmit the second frame type through the serial channel upon completion of transmitting the first frame.

Dependencies are inferred from the claim text.