USB composite device and method using hub link layer and...

Details USB composite device and method using hub link layer and... USB composite device and method using hub link layer and...

2006-10-17

2006-10-17

Ray, Gopal C. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S300000, C358S501000, C358S505000

Reexamination Certificate

active

07124233

ABSTRACT:
An USB composite device using hub link layer and UTMI interface is disclosed, which connects to a host through an USB cable. The device includes an USB physical layer, a hub link layer and plural functional link layers. The USB physical layer can receive and transmit USB signals. The hub link layer connects to the USB physical layer through an UTMI interface, has plural downlink ports to provide linking, and responds an USB transaction performed by the host. The plural functional link layers connect to the downlink ports of the hub link layer through plural UTMI interfaces.

REFERENCES:
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patent: 6389029 (2002-05-01), McAlear
patent: 6697372 (2004-02-01), McAlear
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patent: 6862643 (2005-03-01), Wu et al.
patent: 2003/0035473 (2003-02-01), Takinosawa
patent: 2003/0041205 (2003-02-01), Wu et al.
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“Universal serial bus enhances virtual instrument-based distributed power monitoring” by Young et al. (abstract only) Publication Date: Dec. 2001.

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