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US7082488B2
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System and method for presence detect and reset of a device coupled to an inter-integrated circuit router
Assignee: Hewlett Packard Development Co LP
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Filing: 2003-06-12
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Granted: 2006-07-25
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Expires: 2023-06-12
Abstract
Abstract Embodiments of the present invention provide a system and method for detecting if a device is coupled to an inter-integrated circuit (I2C) router and/or for resetting the device. The I2C router comprises a first I2C bus port having a presence line and/or a reset line. The I2C router further comprises a control logic coupled to and/or distributed within the first I2C bus port. The control logic may determine if a device is coupled to the I2C router as a function of a state of the presence line. The control logic may also determine if a reset condition exists. If a reset condition exists, the control logic changes the state of the reset line, thereby causing the device to reset itself.
Inventors
- 👤 Thane M. Larson
- 👤 Kirk Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:19
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/0703; G06F11/0766; G06F11/0772; G06F11/0706; G06F11/0727; G06F11/0793; H; H04; H04L; H04L41/00; H04L41/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
64 words
A system for detecting a device coupled to an inter-integrated circuit router comprising: a first inter-integrated circuit bus port; a presence line coupled to said first inter-integrated circuit bus port; and a control logic coupled to said first inter-integrated circuit bus port, for determining if said device is coupled to said inter-integrated circuit router as a function of a state of said presence line.
Claim 2
Independent Claim
64 words
A system for detecting a device coupled to an inter-integrated circuit router comprising: a first inter-integrated circuit bus port; a presence line coupled to said first inter-integrated circuit bus port; and a control logic coupled to said first inter-integrated circuit bus port, for determining if said device is coupled to said inter-integrated circuit router as a function of a state of said presence line.
Claim 3
Dependent Claim
45 words
The system for detecting a device coupled to an inter-integrated circuit router according to claim 1 , further comprising: a high-speed external bus port; and an internal bus for communicating data packets between said first inter-integrated circuit bus port and said high-speed external bus port.
Claim 4
Dependent Claim
55 words
The system for detecting a device coupled to an inter-integrated circuit router according to claim 1 , further comprising a second inter-integrated circuit bus port, wherein a first inter-integrated circuit bus coupled to said first inter-integrated circuit bus port is separated from a second inter-integrated circuit bus coupled to said second inter-integrated circuit bus port.
Claim 5
Dependent Claim
52 words
The system for detecting a device coupled to an inter-integrated circuit router according to claim 1 , wherein: said presence line is biased at a first state; and said determining if said device is coupled to said inter-integrated circuit router comprises determining if said presence line is driven to a second state.
Claim 6
Dependent Claim
63 words
The system for detecting a device coupled to an inter-integrated circuit router according to claim 1 , further comprising: a reset line coupled to said first inter-integrated circuit bus port; and a control logic coupled to said first inter-inter-integrated circuit bus port, for determining if a reset condition exists and for changing a state of said reset line if said reset condition exists.
Claim 7
Dependent Claim
45 words
The system for detecting a device coupled to an inter-integrated circuit router according to claim 5 , wherein said reset line is biased at a second state; and said changing a state of said reset line comprises driving said reset line to a first state.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-07-24 | 2010-01-23 | 2010-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-07-24 | 2014-01-23 | 2014-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-07-24 | 2018-01-23 | 2018-07-25 | $7700.00 | Window Closed / Lapsed |