USB interface extension through split transaction protocol

Details USB interface extension through split transaction protocol USB interface extension through split transaction protocol

2006-10-10

2006-10-10

Perveen, Rehana (Department: 2112)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S106000

Reexamination Certificate

active

07120724

ABSTRACT:
A communication system for extending range of USB communications that may include a host computer system having a USB host controller, a USB hub, and transmitter circuitry. The USB host controller may be configured to operate using a split transaction for the USB communications. The communication system may also include receiver circuitry that receives a non-USB format of USB communication signals as the signals appear between split start and split complete transaction operations at the host computer system. The transmitter circuitry may be configured to forward the non-USB formatted USB communication signals across an extension between the transmitter circuitry and the receiver circuitry. At least one USB user interface device may be communicatively coupled to the receiver circuitry and receives USB communication signals from a receiver hub in the receiver circuitry. The USB communication signals correspond to the non-USB formatted communication signals that appear between the split start and split complete transaction operations at the host computer system.

REFERENCES:
patent: 6671756 (2003-12-01), Thomas et al.
patent: 6708247 (2004-03-01), Barret et al.
patent: 2002/0097220 (2002-07-01), Ferguson et al.
patent: 2003/0065839 (2003-04-01), Howard et al.
patent: 2004/0268012 (2004-12-01), Ferguson

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