US6448863B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential transmission cable and joint with specific distances
Assignee: Proterial Ltd
•
Filing: 2000-04-21
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Granted: 2002-09-10
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Expires: 2020-04-21
Abstract
Abstract The differential transmission cable comprises a cable having at least one pair of differential transmission lines, one or more transmission transformers, and connectors at both ends, the transmission transformer having an integrally sintered laminate structure and a coupling coefficient of 0.65 to 0.98 at 100 MHz, the distance between a center of the transmission transformer and a tip end of the closest connector being within 0.1 m, and the distance between a center of the transmission transformer and a tip end of the farthest connector or between a center of the transmission transformer and a center of the other transmission transformer being 0.5 to 4 m. The transmission transformer is mounted onto a substrate, which is inserted into the connector or a housing of the connector having lands or a positioning holder. After wiring, the connector including the substrate is integrally resin-molded.
Inventors
- 👤 Tomomi Ogawa
- 👤 Toshikazu Nishiyama
- 👤 Hirokazu Araki
- 👤 Katsuhiro Okada
- 👤 Yasuo Tani
- 👤 Osamu Ikemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:44
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H01B11/12; H01B11/16; H04; H04B; H04B3/00; H04B3/02; H04B3/32; H04B3/34
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
152 words
A differential transmission cable comprising: a cable having (1) at least one pair of differential transmission lines, (2) at least one transmission transformer, and (3) a first connector and a second connector respectively positioned at the ends of said cable, said at least one transmission transformer being positioned along the length of said cable between a tip end of said first connector and a tip end of said second connector, wherein the distance between a center of said at least one transmission transformer and the tip end of said first connector is 0.1 m or less, and wherein one of (1) the distance between a center of said at least one transmission transformer and the tip end of said second connector is 0.5 to 4 m and (2) the distance between a center of said at least one transmission transformer and a center of another transmission transformer is 0.5 to 4 m.
Claim 2
Dependent Claim
152 words
A differential transmission cable comprising: a cable having (1) at least one pair of differential transmission lines, (2) at least one transmission transformer, and (3) a first connector and a second connector respectively positioned at the ends of said cable, said at least one transmission transformer being positioned along the length of said cable between a tip end of said first connector and a tip end of said second connector, wherein the distance between a center of said at least one transmission transformer and the tip end of said first connector is 0.1 m or less, and wherein one of (1) the distance between a center of said at least one transmission transformer and the tip end of said second connector is 0.5 to 4 m and (2) the distance between a center of said at least one transmission transformer and a center of another transmission transformer is 0.5 to 4 m.
Claim 3
Dependent Claim
21 words
The differential transmission cable according to claim 1 further comprising a noise-suppressing part other than said transmission transformer in said connector.
Claim 4
Dependent Claim
27 words
The differential transmission cable according to claim 1 , wherein said at least one transmission transformer has a coupling coefficient of 0.65 to 0.98 at 100 MHz.
Claim 5
Dependent Claim
27 words
The differential transmission cable according to claim 1 wherein one transmission transformer is disposed in the vicinity of one end of each pair of differential transmission lines.
Claim 6
Dependent Claim
38 words
The differential transmission cable according to claim 1 wherein said differential transmission cable comprises a pair of transmission transformers, each transmission transformer being disposed in the vicinity of an end of each pair of said differential transmission lines.
Claim 7
Dependent Claim
22 words
The differential transmission cable according to claim 1 , wherein said at least one transmission transformer has an integrally sintered laminate structure.
Claim 8
Dependent Claim
21 words
The differential transmission cable according to claim 1 , wherein said at least one transmission transformer is a common-mode choke coil.
Claim 9
Dependent Claim
37 words
The differential transmission cable according to claim 1 , wherein said at least one transmission transformer is fixed to one of said at least one pair of differential transmission lines, said first connector, and said second connector.
Claim 10
Dependent Claim
34 words
The differential transmission cable according to claim 8 , wherein said at least one transmission transformer is mounted to a substrate, which is resin-molded in one of said first connector and said second connector.
Claim 11
Dependent Claim
56 words
The differential transmission cable according to claim 9 , wherein said at least one transmission transformer is disposed in a housing of one of said first connector and said second connector, said housing being provided with lands for mounting said at least one transmission transformer and a holder for positioning said at least one transmission transformer.
Claim 12
Dependent Claim
26 words
The differential transmission cable according to claim 10 , wherein part of said lands for mounting said transmission transformer is constituted by terminals of said connector.
Claim 13
Dependent Claim
23 words
The differential transmission cable according to claim 10 , wherein said land for mounting said transmission transformer is provided with a waist portion.
Claim 14
Dependent Claim
28 words
The differential transmission cable according to claim 9 , wherein said holder for positioning said transmission transformer is in a shape having a hook in an upper portion.
Claim 15
Dependent Claim
186 words
A differential transmission cable comprising: a cable having (1) at least one pair of differential transmission lines, (2) at least one transmission transformer, and (3) a first connector and a second connector respectively positioned at the ends of said cable, said at least one transmission transformer being positioned along the length of said cable between a tip end of said first connector and a tip end of said second connector, wherein the distance between a center of said at least one transmission transformer and the tip end of said first connector is λ/20 or less, and wherein one of (1) the distance between a center of said at least one transmission transformer and the tip end of said second connector is λ/4 to 2λand no other connector is provided between said second connector and said at least one transmission transformer, and (2) the distance between a center of said at least one transmission transformer and a center of another transmission transformer is λ/4 to 2λ, and wherein λ represents the wavelength of a noise that radiates from said differential transmission cable, which is to be attenuated.
Claim 16
Dependent Claim
186 words
A differential transmission cable comprising: a cable having (1) at least one pair of differential transmission lines, (2) at least one transmission transformer, and (3) a first connector and a second connector respectively positioned at the ends of said cable, said at least one transmission transformer being positioned along the length of said cable between a tip end of said first connector and a tip end of said second connector, wherein the distance between a center of said at least one transmission transformer and the tip end of said first connector is λ/20 or less, and wherein one of (1) the distance between a center of said at least one transmission transformer and the tip end of said second connector is λ/4 to 2λand no other connector is provided between said second connector and said at least one transmission transformer, and (2) the distance between a center of said at least one transmission transformer and a center of another transmission transformer is λ/4 to 2λ, and wherein λ represents the wavelength of a noise that radiates from said differential transmission cable, which is to be attenuated.
Claim 17
Dependent Claim
27 words
The differential transmission cable according to claim 14 , wherein said at least one transmission transformer has a coupling coefficient of 0.65 to 0.98 at 100 MHz.
Claim 18
Dependent Claim
28 words
The differential transmission cable according to claim 14 , wherein one transmission transformer is disposed in the vicinity of one end of each pair of differential transmission lines.
Claim 19
Dependent Claim
39 words
The differential transmission cable according to claim 14 , wherein said differential transmission cable comprises a pair of transmission transformers, each transmission transformer being disposed in the vicinity of an end of each pair of said differential transmission lines.
Claim 20
Dependent Claim
22 words
The differential transmission cable according to claim 14 , wherein said at least one transmission transformer has an integrally sintered laminate structure.
Claim 21
Dependent Claim
21 words
The differential transmission cable according to claim 14 , wherein said at least one transmission transformer is a common-mode choke coil.
Claim 22
Dependent Claim
37 words
The differential transmission cable according to claim 14 , wherein said at least one transmission transformer is fixed to one of said at least one pair of differential transmission lines, said first connector, and said second connector.
Claim 23
Dependent Claim
31 words
The differential transmission cable according to claim 20 , wherein said transmission transformer is mounted to a substrate, which is resin-molded in one of said first connector and said second connector.
Claim 24
Dependent Claim
56 words
The differential transmission cable according to claim 21 , wherein said at least one transmission transformer is disposed in a housing of one of said first connector and said second connector, said housing being provided with lands for mounting said at least one transmission transformer and a holder for positioning said at least one transmission transformer.
Claim 25
Dependent Claim
23 words
The differential transmission cable according to claim 22 , wherein said land for mounting said transmission transformer is provided with a waist portion.
Claim 26
Dependent Claim
22 words
The differential transmission cable according to claim 14 , further comprising a noise-suppressing part other than said transmission transformer in said connector.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-09-09 | 2006-03-11 | 2006-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-09 | 2010-03-11 | 2010-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-09 | 2014-03-11 | 2014-09-10 | $7700.00 | Window Closed / Lapsed |