US6147680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touchpad with interleaved traces
Assignee: Elan Microelectronics Corp
•
Filing: 1997-06-03
•
Granted: 2000-11-14
•
Expires: 2017-06-03
Abstract
Abstract A unique layout with a matrix of traces having at least traces in one direction provided with portions which are interleaved with portions of adjacent traces. Unlike the prior art zigzag pattern, the extensions of the traces of the present invention are actually interleaved, so that they overlap with portions of the adjacent trace. Thus, a finger moving from one trace to the next will contact the interleaved portions of the adjacent trace before it leaves the interleaved portions of the first trace.
Inventors
- 👤 Aleksey A. Tareev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:19
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/047; G06F3/044; G06F3/0445
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A touchpad comprising: an insulating layer; a first layer mounted on a first side of said insulating layer and having a plurality of first traces extending in a first direction; a second layer mounted on a second side of said insulating layer and having a plurality of second traces extending in a second direction, said second direction being substantially orthogonal to said first direction, said second traces having portions which are interleaved with portions of adjacent traces; wherein said first traces have portions which are interleaved with portions of adjacent traces; and wherein said interleaved portions of said first traces are thinner at positions crossing over said interleaved portions of said second traces.
Claim 2
Dependent Claim
113 words
A touchpad comprising: an insulating layer; a first layer mounted on a first side of said insulating layer and having a plurality of first traces extending in a first direction; a second layer mounted on a second side of said insulating layer and having a plurality of second traces extending in a second direction, said second direction being substantially orthogonal to said first direction, said second traces having portions which are interleaved with portions of adjacent traces; wherein said first traces have portions which are interleaved with portions of adjacent traces; and wherein said interleaved portions of said first traces are thinner at positions crossing over said interleaved portions of said second traces.
Claim 3
Dependent Claim
150 words
A touchpad comprising; an insulating layer; a first layer mounted on a first side of said insulating layer and having a plurality of first traces extending in a first direction, said first traces having portions which are interleaved with portions of adjacent traces; a second layer mounted on a second side of said insulating layer and having a plurality of second traces extending in a second direction, said second direction being substantially orthogonal to said first direction, said second traces having portions which are interleaved with portions of adjacent traces; wherein a distance between said interleaved portions is less than a distance between said second traces; and a plurality of isolated, floating conductive regions in said first layer positioned opposite portions of said interleaved portions of said second layer; wherein said interleaved portions of said first traces are thinner at positions crossing over said interleaved portions of said second traces.
Claim 4
Dependent Claim
150 words
A touchpad comprising; an insulating layer; a first layer mounted on a first side of said insulating layer and having a plurality of first traces extending in a first direction, said first traces having portions which are interleaved with portions of adjacent traces; a second layer mounted on a second side of said insulating layer and having a plurality of second traces extending in a second direction, said second direction being substantially orthogonal to said first direction, said second traces having portions which are interleaved with portions of adjacent traces; wherein a distance between said interleaved portions is less than a distance between said second traces; and a plurality of isolated, floating conductive regions in said first layer positioned opposite portions of said interleaved portions of said second layer; wherein said interleaved portions of said first traces are thinner at positions crossing over said interleaved portions of said second traces.
References Cited (Backward Citations)
US3921166A
Cited
US4103252A
Cited
US4639720A
Cited
US4455452A
Cited
US4550221A
Cited
US4733222A
Cited
US4736191A
Cited
US4686332A
Cited
US5016008A
Cited
WO1991003039A1
Cited
US5543588A
Cited
US5543589A
Cited
US5818315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-14 | 2004-05-15 | 2004-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-14 | 2008-05-15 | 2008-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-14 | 2012-05-15 | 2012-11-14 | $7700.00 | Window Closed / Lapsed |