WO2006108174A3 - Peripheral sharing usb hub - Google Patents

Peripheral sharing usb hub Download PDF

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Publication number
WO2006108174A3
WO2006108174A3 PCT/US2006/013299 US2006013299W WO2006108174A3 WO 2006108174 A3 WO2006108174 A3 WO 2006108174A3 US 2006013299 W US2006013299 W US 2006013299W WO 2006108174 A3 WO2006108174 A3 WO 2006108174A3
Authority
WO
WIPO (PCT)
Prior art keywords
port
downstream
upstream
hub
ports
Prior art date
Application number
PCT/US2006/013299
Other languages
French (fr)
Other versions
WO2006108174A2 (en
Inventor
Mark R Bohm
Mark Fu
Henry Wurzburg
James E Bowles
Robert E Hollingsworth
Drew J Dutton
Original Assignee
Standard Microsyst Smc
Mark R Bohm
Mark Fu
Henry Wurzburg
James E Bowles
Robert E Hollingsworth
Drew J Dutton
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Microsyst Smc, Mark R Bohm, Mark Fu, Henry Wurzburg, James E Bowles, Robert E Hollingsworth, Drew J Dutton filed Critical Standard Microsyst Smc
Priority to EP06740803A priority Critical patent/EP1877912A2/en
Priority to JP2008505626A priority patent/JP2008536225A/en
Publication of WO2006108174A2 publication Critical patent/WO2006108174A2/en
Publication of WO2006108174A3 publication Critical patent/WO2006108174A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/40—Bus coupling
    • G06F2213/4004—Universal serial bus hub with a plurality of upstream ports

Abstract

In various embodiments, devices coupled to upstream ports may enumerate the USB switching hub according to the total number of downstream ports on the USB switching hub. In some embodiments, when a first upstream port is communicating with a first downstream port, status registers coupled to the second upstream port may indicate to the second upstream device that the first downstream port is disconnected. By enumerating the USB switching hub according to the total number of downstream ports, the upstream devices may not have to re-enumerate the hub (and correspondingly each device coupled to the hub) each time a downstream device is switched. In some embodiments, an intelligent port routing switch may delay switching communications for the downstream port if there is an active transfer in progress between a related downstream port and an upstream port.
PCT/US2006/013299 2005-04-06 2006-04-06 Peripheral sharing usb hub WO2006108174A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06740803A EP1877912A2 (en) 2005-04-06 2006-04-06 Peripheral sharing usb hub
JP2008505626A JP2008536225A (en) 2005-04-06 2006-04-06 Peripheral device shared USB hub

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/100,299 2005-04-06
US11/100,299 US20060056401A1 (en) 2004-09-14 2005-04-06 Peripheral sharing USB hub

Publications (2)

Publication Number Publication Date
WO2006108174A2 WO2006108174A2 (en) 2006-10-12
WO2006108174A3 true WO2006108174A3 (en) 2006-11-30

Family

ID=36886665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/013299 WO2006108174A2 (en) 2005-04-06 2006-04-06 Peripheral sharing usb hub

Country Status (5)

Country Link
US (1) US20060056401A1 (en)
EP (1) EP1877912A2 (en)
JP (1) JP2008536225A (en)
KR (1) KR20070118691A (en)
WO (1) WO2006108174A2 (en)

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Also Published As

Publication number Publication date
JP2008536225A (en) 2008-09-04
EP1877912A2 (en) 2008-01-16
US20060056401A1 (en) 2006-03-16
KR20070118691A (en) 2007-12-17
WO2006108174A2 (en) 2006-10-12

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