Patent US5454738A successfully refreshed from Google Patents.
US5454738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector having reduced cross-talk
Assignee: ABB Installation Products International LLC
•
Filing: 1994-05-25
•
Granted: 1995-10-03
•
Expires: 2014-05-25
Abstract
Abstract An electrical connector having crosstalk reduction between selected pairs of electrical contacts comprises a printed circuit board having a pair of circuit elements therein connected to selected contacts in the connector. The signal paths of such selected contacts are re-routed by means of the pattern of circuit elements in the printed circuit board, each circuit element balancing the mutual inductance in such re-routed signal paths for enhanced crosstalk reduction.
Inventors
- 👤 Gunsang Lim
- 👤 Richard D. Marowsky
- 👤 Ben Khoshnood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:50
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/646; H01R13/6461; H01R13/6464; H01R13/6466; H01R13/6467; H01R13/6473; H01R13/6474; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0216; H05K1/0228; H05K1/03; H05K1/0393; H05K1/11; H05K1/118; H05K1/16; H05K1/162; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09218; H05K2201/09245; H05K3/00; H05K3/40; H05K3/403; H05K3/4092; Y; Y10; Y10S; Y10S439/00; Y10S439/941; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49721; Y10T29/4973
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
87 words
An electrical connector comprising: an insulative housing; a plurality of elongate electrical contacts supported on said housing, said contacts being disposed in a mutually spaced side-by-side arrangement; a dielectric substrate overlying said contacts; a conductive trace having an extent supported by said dielectric substrate, said trace being disposed in spatial registry with a longitudinal portion of one of said contacts and being of configuration to define with said one contact and the permeability and the dielectric constant of said dielectric substrate a predetermined mutual inductance and capacitance.
Claim 2
Dependent Claim
87 words
An electrical connector comprising: an insulative housing; a plurality of elongate electrical contacts supported on said housing, said contacts being disposed in a mutually spaced side-by-side arrangement; a dielectric substrate overlying said contacts; a conductive trace having an extent supported by said dielectric substrate, said trace being disposed in spatial registry with a longitudinal portion of one of said contacts and being of configuration to define with said one contact and the permeability and the dielectric constant of said dielectric substrate a predetermined mutual inductance and capacitance.
Claim 3
Dependent Claim
22 words
An electrical connector according to claim 1, wherein said conductive trace comprises a conductive trace portion connected to said conductive trace extent.
Claim 4
Dependent Claim
30 words
An electrical connector according to claim 1, wherein there is another conductive trace on said dielectric substrate, having a portion disposed in spatial registry with another contact of said connector.
Claim 5
Dependent Claim
27 words
An electric connector according to claim 3, wherein said contacts are of generally rectangular cross-sections each having a substantially flat surface over which said conductive traces overlie.
Claim 6
Dependent Claim
20 words
An electrical connector according to claim 2, wherein said conductive trace extent lies transversely relative to said conductive trace portion.
Claim 7
Dependent Claim
38 words
An electrical connector according to claim 5, wherein said conductive trace comprises a further extent connected to said conductive trace portion, said further extent being disposed in spatial registry with a length of another of said elongate contacts.
Claim 8
Dependent Claim
99 words
An electrical connector comprising; an insulative housing; a plurality of elongate electrical contacts supported on said housing, said contacts being disposed in a mutually spaced side-by-side arrangement; circuitry on said housing, including a dielectric substrate overlying said contacts and a pair of circuit elements disposed on said substrate, each of said circuit elements including a conductive trace having a predetermined length lying in spatial registry with a selective longitudinal portion of said contacts and being of configuration to define with said contacts and the permeability and the dielectric constant of said dielectric substrate a predetermined mutual inductance and capacitance.
Claim 9
Dependent Claim
99 words
An electrical connector comprising; an insulative housing; a plurality of elongate electrical contacts supported on said housing, said contacts being disposed in a mutually spaced side-by-side arrangement; circuitry on said housing, including a dielectric substrate overlying said contacts and a pair of circuit elements disposed on said substrate, each of said circuit elements including a conductive trace having a predetermined length lying in spatial registry with a selective longitudinal portion of said contacts and being of configuration to define with said contacts and the permeability and the dielectric constant of said dielectric substrate a predetermined mutual inductance and capacitance.
Claim 10
Dependent Claim
27 words
An electrical connector according to claim 7, wherein said contacts are of generally rectangular cross-sections each having a substantially flat surface over which said conductive traces overlie.
Claim 11
Dependent Claim
23 words
An electrical connector according to claim 7, wherein said dielectric substrate comprises a pair of dielectric films sandwiching said pair of circuit elements.
Claim 12
Dependent Claim
27 words
An electrical connector according to claim 9, wherein said dielectric substrate further comprises a middle layer of insulation disposed between and insulating said pair of circuit elements.
Claim 13
Dependent Claim
40 words
An electrical connector according to claim 9, wherein one of said dielectric films is disposed on said contacts between said contacts and said pair of circuit elements and the other dielectric film is disposed on said pair of circuit elements.
Claim 14
Dependent Claim
26 words
An electrical connector according to claim 11, wherein said pair of films and said pair of circuit elements define a subassembly separate from said insulative housing.
Claim 15
Dependent Claim
86 words
An electrical connector comprising: an insulative housing; a plurality of electrical elongate contacts supported on said housing, said contacts being disposed in a mutually spaced side-by-side arrangement; a dielectric substrate overlying said contacts; a conductive trace on said dielectric substrate; a dielectric film overlying said conductive trace; said trace being disposed in spatial registry with one of said contacts and being of configuration to define with said one contact and the permeability and the dielectric constant of said dielectric substrate a predetermined mutual inductance and capacitance.
Claim 16
Dependent Claim
86 words
An electrical connector comprising: an insulative housing; a plurality of electrical elongate contacts supported on said housing, said contacts being disposed in a mutually spaced side-by-side arrangement; a dielectric substrate overlying said contacts; a conductive trace on said dielectric substrate; a dielectric film overlying said conductive trace; said trace being disposed in spatial registry with one of said contacts and being of configuration to define with said one contact and the permeability and the dielectric constant of said dielectric substrate a predetermined mutual inductance and capacitance.
Claim 17
Dependent Claim
19 words
An electrical connector according to claim 13, wherein said dielectric substrate and said dielectric film sandwich said conductive trace.
Claim 18
Dependent Claim
26 words
An electrical connector according to claim 14, wherein said dielectric substrate, said conductive trace and said dielectric film define a subassembly separate from said insulative housing.
References Cited (Backward Citations)
US2667543A
Cited
US3757028A
Cited
US4157612A
Cited
US4428632A
Cited
US4418239A
Cited
US4657330A
Cited
US4551576A
Cited
JPS61256850A
Cited
US4831497A
Cited
US4878847A
Cited
JPH0291987A
Cited
JPH02268484A
Cited
GB2233157A
Cited
EP0421174A2
Cited
EP0524358A2
Cited
EP0525703A1
Cited
US5186647A
Cited
US5226835A
Cited
GB2269941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |