US6081430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed backplane
Assignee: Individual
•
Filing: 1998-05-05
•
Granted: 2000-06-27
•
Expires: 2018-05-05
Abstract
Abstract A backplane consisting of segmented bus lines on a mother board with loop-through connections to active transceivers mounted on connectors to daughter boards. The transceivers isolate the interconnect to the daughter boards from the bus lines. The loop-through transmission line on the connectors preserves the impedance of the bus lines and allows the interconnect stub to the transceivers to be short, minimizing reflections and enabling high-speed backplane operation. The connectors are removable from the motherboard for repair.
Inventors
- 👤 George Sterling La Rue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:40
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0237; H05K1/025; H05K1/14; H05K1/141; H05K7/00; H05K7/14; H05K7/1438; H05K7/1439; H05K7/1441; H05K2201/00; H05K2201/03; H05K2201/0302; H05K2201/0314; H05K2201/04; H05K2201/044; H05K2201/045; H05K2201/07; H05K2201/0776; H05K2201/0792; H05K2201/09; H05K2201/09209; H05K2201/09218; H05K2201/09236; H05K2201/09654; H05K2201/09727; H05K2201/09818; H05K2201/09845; H05K2201/10; H05K2201/10613; H05K2201/10621; H05K2201/10689; H05K3/00; H05K3/30; H05K3/32; H05K3/325; H05K3/36; H05K3/366; H05K3/368
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
97 words
A connector for coupling a daughter board having a plurality of conductive paths to a motherboard having a plurality of conductive segmented lines, said connector comprising: a body coupleable to the motherboard and to the daughter board; a plurality of loop-through paths in the body for connecting a pair of segments on the mother board and providing a conductive path between said pair of segments; and a plurality of active circuit elements each of which are electrically connected between at least one of the plurality of loop-through paths and providing a conductive path to the daughter board.
Claim 2
Dependent Claim
97 words
A connector for coupling a daughter board having a plurality of conductive paths to a motherboard having a plurality of conductive segmented lines, said connector comprising: a body coupleable to the motherboard and to the daughter board; a plurality of loop-through paths in the body for connecting a pair of segments on the mother board and providing a conductive path between said pair of segments; and a plurality of active circuit elements each of which are electrically connected between at least one of the plurality of loop-through paths and providing a conductive path to the daughter board.
Claim 3
Dependent Claim
34 words
The connector of claim 1 wherein said loop-through paths are of varying widths to compensate for parasitic capacitances and inductances associated with the transceiver and the connection of the transceiver to the loop-through paths.
Claim 4
Dependent Claim
26 words
The connector of claim 1 wherein the means of connecting the loop-through paths to a pair of segments on the mother board is a conductive elastomer.
Claim 5
Dependent Claim
123 words
A backplane for the purpose of interconnecting a plurality of daughter circuit boards, wherein each of the plurality of daughter circuit boards includes one or more conductive paths, the backplane comprising: a motherboard containing a plurality of segmented conducting electrical signals paths; a plurality of connectors containing conducting loop-through signal paths for connecting pairs of said segmented paths on said mother board together to form a plurality of bus lines; said means of connection between said connector and said motherboard to be removable; said connector includes means for supporting at least one functioning electronic component; a means to connect said electronic component to said loop-through signal paths; a means to connect said electronic component to said conductive paths on said daughter circuit boards.
Claim 6
Dependent Claim
123 words
A backplane for the purpose of interconnecting a plurality of daughter circuit boards, wherein each of the plurality of daughter circuit boards includes one or more conductive paths, the backplane comprising: a motherboard containing a plurality of segmented conducting electrical signals paths; a plurality of connectors containing conducting loop-through signal paths for connecting pairs of said segmented paths on said mother board together to form a plurality of bus lines; said means of connection between said connector and said motherboard to be removable; said connector includes means for supporting at least one functioning electronic component; a means to connect said electronic component to said loop-through signal paths; a means to connect said electronic component to said conductive paths on said daughter circuit boards.
Claim 7
Dependent Claim
18 words
The backplane in claim 4 wherein the plurality of segmented conducting electrical signals paths are of different lengths.
Claim 8
Dependent Claim
113 words
A daughter board interface for the purpose of interconnecting a plurality of daughter circuit board signal paths to a motherboard having a plurality of connectors mounted on the mother board, said connectors connected to a plurality of conductive segmented lines on the motherboard, said daughter board interface comprising: a plurality of loop-through paths on the daughter board for connecting a pair of segments on the mother board and providing a conductive path between said pair of segments; and a plurality of active circuit elements each of which are electrically connected between at least one of the plurality of loop-through paths and at least on of the plurality of daughter circuit board signal paths.
Claim 9
Dependent Claim
113 words
A daughter board interface for the purpose of interconnecting a plurality of daughter circuit board signal paths to a motherboard having a plurality of connectors mounted on the mother board, said connectors connected to a plurality of conductive segmented lines on the motherboard, said daughter board interface comprising: a plurality of loop-through paths on the daughter board for connecting a pair of segments on the mother board and providing a conductive path between said pair of segments; and a plurality of active circuit elements each of which are electrically connected between at least one of the plurality of loop-through paths and at least on of the plurality of daughter circuit board signal paths.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-06-27 | 2003-12-27 | 2004-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-27 | 2007-12-27 | 2008-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-27 | 2011-12-27 | 2012-06-27 | $7700.00 | Window Closed / Lapsed |