US4603309A
Expired / Lapsed
US
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Switching high speed digital pulses
Assignee: Honeywell Inc
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Filing: 1984-05-25
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Granted: 1986-07-29
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Expires: 2004-05-25
Abstract
Abstract The method of distributing a signal from an input conductor to a plurality of relay terminals at known locations in the plane of a circuit board which comprises meandering said input conductor to intersect said terminals in succession while avoiding other relay contacts. The meandering conductor path gives this type of relay switching system the ability to maintain a switching system characteristic impedance, Z 0 , in a simple, cost effective manner.
Inventors
- 👤 Gerald W. Renken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:42
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
In a switching system for distribution of high speed digital pulses, in combination: a plurality of relays each operable to complete a circuit between first and second switching contacts; means mounting said relays with said first contacts mutually spaced in a first direction; output lines connected individually to said second switching contacts; a feed line including a meander conductor having first laterally spaced portions extending in said first direction and interconnected at smooth curves by second portions extending transverse to said first direction; and means connecting said feed line to said first switching contacts, consisting of solder pads located on said second portions and mutually spaced along said feed line, the mutual spacing along said feed line between said first switching contacts determining the relation between the loaded and unloaded impedances of said feed line.
Claim 2
Dependent Claim
135 words
In a switching system for distribution of high speed digital pulses, in combination: a plurality of relays each operable to complete a circuit between first and second switching contacts; means mounting said relays with said first contacts mutually spaced in a first direction; output lines connected individually to said second switching contacts; a feed line including a meander conductor having first laterally spaced portions extending in said first direction and interconnected at smooth curves by second portions extending transverse to said first direction; and means connecting said feed line to said first switching contacts, consisting of solder pads located on said second portions and mutually spaced along said feed line, the mutual spacing along said feed line between said first switching contacts determining the relation between the loaded and unloaded impedances of said feed line.
Claim 3
Dependent Claim
146 words
In a switching system for distribution of high speed digital pulses, in combination: a plurality of relays each operable to complete a circuit between first and second switching contacts; means rigidly mounting said relays with said first contacts mutually spaced in a first direction; output lines having a common ground plane and connected individually to said second switching contacts; a feed line including said ground plane and a meander conductor having first laterally spaced portions extending in said first direction and interconnected at smooth curves by second portions extending transverse to said first direction; and means connecting said feed line to said first switching contacts, consisting of solder pads located on said second portions and mutually spaced along said feed line, the mutual spacing along said feed line between said first switching contacts determining the relation between the loaded and unloaded impedances of the feed line.
Claim 4
Dependent Claim
146 words
In a switching system for distribution of high speed digital pulses, in combination: a plurality of relays each operable to complete a circuit between first and second switching contacts; means rigidly mounting said relays with said first contacts mutually spaced in a first direction; output lines having a common ground plane and connected individually to said second switching contacts; a feed line including said ground plane and a meander conductor having first laterally spaced portions extending in said first direction and interconnected at smooth curves by second portions extending transverse to said first direction; and means connecting said feed line to said first switching contacts, consisting of solder pads located on said second portions and mutually spaced along said feed line, the mutual spacing along said feed line between said first switching contacts determining the relation between the loaded and unloaded impedances of the feed line.
Claim 5
Dependent Claim
192 words
In a switching system for distribution of high speed digital pulses, in combination: a plurality of relays each operable to complete a circuit between first and second switching contacts and having first lumped capacitances C 1 at said first contacts; means mounting said relays with said first contacts mutually spaced in a first direction; output lines connected individually to said second switching contacts; a feed line including a meander connection having first laterally spaced parallel portions extending in said first direction and interconnected at smooth curves by second portions extending transverse to said first direction, said feed line having a distributed line capacitance C 0 and an unloaded impedance Z 0 ; and means connecting said feed line to said first switching contacts, consisting of solder pads with second lumped capacitances, C 2 located on said second portions and mutually spaced along said feed line by a common distance d, so that said feed line has a loaded impedance Z L , the mutual spacing along said feed line between said first switching contacts determining the relation between the loaded and unloaded impedances of said feed line according to the equation, ##EQU2##
Claim 6
Dependent Claim
192 words
In a switching system for distribution of high speed digital pulses, in combination: a plurality of relays each operable to complete a circuit between first and second switching contacts and having first lumped capacitances C 1 at said first contacts; means mounting said relays with said first contacts mutually spaced in a first direction; output lines connected individually to said second switching contacts; a feed line including a meander connection having first laterally spaced parallel portions extending in said first direction and interconnected at smooth curves by second portions extending transverse to said first direction, said feed line having a distributed line capacitance C 0 and an unloaded impedance Z 0 ; and means connecting said feed line to said first switching contacts, consisting of solder pads with second lumped capacitances, C 2 located on said second portions and mutually spaced along said feed line by a common distance d, so that said feed line has a loaded impedance Z L , the mutual spacing along said feed line between said first switching contacts determining the relation between the loaded and unloaded impedances of said feed line according to the equation, ##EQU2##
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) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |