US6297445B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication line
Assignee: Fujikura Ltd
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Filing: 1999-01-27
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Granted: 2001-10-02
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Expires: 2019-01-27
Abstract
Abstract A communication line is disclosed which is able to reduce the difference in the signal propagation time between the wires of the twisted pair. A communication line of the present invention is achieved by cutting and exchanging a pair of wires at the middle point or plural points in the line, so that the positive connecting parts and the negative connecting parts formed by the above cutting and exchanging are equal in length.
Inventors
- 👤 Naoshi Yamada
- 👤 Yoshiharu Unami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:02
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H04; H04B; H04B3/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
59 words
A communication line consisting of at least two signal transmission elements, wherein said line has at least one connecting point formed at half the length of the line at which at least one element of said signal transmission elements is exchanged with another element of said signal transmission elements, and positive connection parts and negative connection parts are produced.
Claim 2
Dependent Claim
59 words
A communication line consisting of at least two signal transmission elements, wherein said line has at least one connecting point formed at half the length of the line at which at least one element of said signal transmission elements is exchanged with another element of said signal transmission elements, and positive connection parts and negative connection parts are produced.
Claim 3
Dependent Claim
24 words
A communication line according to claim 1 wherein at least two of said signal transmission elements are insulated wires, coaxial cables or optical fibers.
Claim 4
Dependent Claim
53 words
A communication line consisting of at least one pair of insulated wires, wherein said line has at least one connecting point formed at half the length of the line at which the polarity of at least one pair of said wires is exchanged, and positive connection parts and negative connection parts are produced.
Claim 5
Dependent Claim
53 words
A communication line consisting of at least one pair of insulated wires, wherein said line has at least one connecting point formed at half the length of the line at which the polarity of at least one pair of said wires is exchanged, and positive connection parts and negative connection parts are produced.
Claim 6
Dependent Claim
59 words
A communication line consisting of at least one pair of insulated wires, wherein said line has one connecting point at the ½ of the length of the line at which the polarity of at least one pair of said wires is exchanged in order that the line is divided into one positive connection part and one negative connection part.
Claim 7
Dependent Claim
59 words
A communication line consisting of at least one pair of insulated wires, wherein said line has one connecting point at the ½ of the length of the line at which the polarity of at least one pair of said wires is exchanged in order that the line is divided into one positive connection part and one negative connection part.
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) | 2004-10-01 | 2005-04-02 | 2005-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-10-01 | 2009-04-02 | 2009-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-10-01 | 2013-04-02 | 2013-10-02 | $7700.00 | Window Closed / Lapsed |