IP Library Granted Patent US 12700700
Granted Patent B2
US 12700700 · App. 17/988,147 · Granted Aug 4, 2026

Connector cable for reducing crosstalk

Inventors: Yukitaka Tanaka (Tokyo, JP); Gota Kameyama (Tokyo, JP); Yukiko Sato (Tokyo, JP)
Assignee: Japan Aviation Electronics Industry, Limited
H01R13/6471H01R9/05H01R13/40H01R13/502H01R12/57
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Quick Facts
Patent No.
US 12700700
App. No.
17/988,147
Granted
Aug 4, 2026
Kind
B2
Abstract

A connector cable includes a plurality of contacts placed in a row and a plurality of cables connected to the plurality of contacts. The plurality of cables includes at least three pairs of high-speed differential signal lines for transmitting high-speed differential signals, at least one non-high-speed differential signal line for transmitting a non-high-speed differential signal, and a plurality of ground terminals. The plurality of ground terminals is allocated to contacts on both ends among the plurality of contacts and a contact between two pairs of high-speed differential signal lines or between one pair of high-speed differential signal lines and one non-high-speed differential signal line to limit the number of consecutive pairs of high-speed differential signal lines to two.

Claims (57)

1 . A connector cable comprising:

a plurality of contacts placed in a row;

a plurality of cables connected to the plurality of contacts, the plurality of cables including

a high-speed differential signal line portion including at least three pairs of high-speed differential signal lines, arranged adjacent to each other and transmitting high-speed differential signals, and

a non-high-speed differential signal line portion including one or two non-high-speed differential signal lines or one pair or two pairs of non-high-speed differential signal lines, arranged between two pairs of the at least three pairs of high-speed differential signal lines and transmitting non-high-speed differential signals;

a solder block fixing the plurality of cables;

a ground bar including a pair of bars arranged on and under the solder block; and

a plurality of ground terminals extending from the ground bar, and arranged to be allocated to contacts on both ends among the plurality of contacts, and a contact between two pairs of the at least three pairs of high-speed differential signal lines and between one pair of the at least three pairs of high-speed differential signal lines and the non-high-speed differential signal line portion,

wherein the non-high-speed differential signal line portion is arranged among the high-speed differential signal line portion inside the plurality of ground terminals arranged to be allocated to the contacts on both ends such that the at least three pairs of high-speed differential signal lines are consecutively arranged up to two pairs,

each of the plurality of cables includes an inner conductor, a first insulator covering the inner conductor, and an outer conductor covering the first insulator,

outer conductors of the plurality of cables are fixed through the solder block, and

each of the pair of bars is one plate-shaped member extending in a direction of the plurality of contacts placed in the row, and the outer conductors of the plurality of cables are collectively connected through the pair of bars.

2 . The connector cable according to claim 1 , wherein the one pair or two pairs of non-high-speed differential signal lines include one pair or two pairs of differential signal lines arranged adjacent to each other and transmitting the non-high-speed differential signals at a speed lower than that of the at least three pairs of high-speed differential signal lines.

3 . The connector cable according to claim 1 , wherein the one or two non-high-speed differential signal lines are one or two low-speed signal single ends transmitting the non-high-speed differential signals at a speed lower than that of the at least three pairs of high-speed differential signal lines.

4 . The connector cable according to claim 1 , wherein the one or two non-high-speed differential signal lines are one or two power lines.

5 . The connector cable according to claim 1 , wherein the one or two non-high-speed differential signal lines and the one pair or two pairs of non-high-speed differential signal lines have appearances different from the at least three pairs of high-speed differential signal lines.

6 . The connector cable according to claim 1 , further comprising

another non-high-speed differential signal line different from the non-high-speed differential signal line portion, and

another contact to which the another non-high-speed differential signal line is allocated, arranged outside the plurality of ground terminals allocated to the contacts on both ends.

7 . The connector cable according to claim 1 , wherein the high-speed differential signal line portion includes three pairs of high-speed differential signal lines, and

the non-high-speed differential signal line portion includes two lines or one pair of non-high-speed differential signal lines arranged between two pairs of the three pairs of high-speed differential signal lines.

8 . The connector cable according to claim 1 , wherein the plurality of ground terminals outwardly extends from one of the pair of bars arranged on the solder block,

each of the pair of bars continuously extends between two of the plurality of ground terminals arranged to be allocated to the contacts on both ends among the plurality of contacts, and

each of the plurality of cables further includes a second insulator covering the outer conductor, as a protective coating, and the outer conductor is exposed in the solder block between the pair of bars.

9 . The connector cable according to claim 8 , further comprising a connector housing in which the plurality of contacts is placed in the row,

wherein the connector housing includes

a front portion having a fitting hole at a front side and a plurality of slits on a top side, the fitting hole and the plurality of slits being interconnected inside the front portion, and front ends of the plurality of contacts being positioned thereinside, and

a rear portion having a first portion on which the plurality of cables is connected to rear ends of the plurality of contacts and a second portion through which the plurality of contacts extends toward the fitting hole.

10 . A connector cable comprising:

a plurality of contacts placed in a row;

a plurality of cables connected to the plurality of contacts, the plurality of cables including

a high-speed differential signal line portion including at least three pairs of high-speed differential signal lines, arranged adjacent to each other and transmitting high-speed differential signals, and

a power line portion including one or two power lines, arranged between two pairs of the at least three pairs of high-speed differential signal lines and supplying power;

a solder block fixing the plurality of cables;

a ground bar including a pair of bars arranged on and under the solder block; and

a plurality of ground terminals extending from the ground bar, and arranged to be allocated to contacts on both ends among the plurality of contacts, and a contact between two pairs of the at least three pairs of high-speed differential signal lines and between one pair of the at least three pairs of high-speed differential signal lines and the power line portion,

wherein the power line portion is arranged among the high-speed differential signal line portion inside the plurality of ground terminals arranged to be allocated to the contacts on both ends such that the at least three pairs of high-speed differential signal lines are consecutively arranged up to two pairs,

each of the plurality of cables includes an inner conductor, a first insulator covering the inner conductor, and an outer conductor covering the first insulator,

outer conductors of the plurality of cables are fixed through the solder block, and

each of the pair of bars is one plate-shaped member extending in a direction of the plurality of contacts placed in the row, and the outer conductors of the plurality of cables are collectively connected through the pair of bars.

11 . The connector cable according to claim 10 , wherein the plurality of ground terminals outwardly extends from one of the pair of bars arranged on the solder block,

each of the pair of bars continuously extends between two of the plurality of ground terminals arranged to be allocated to the contacts on both ends among the plurality of contacts, and

each of the plurality of cables further includes a second insulator covering the outer conductor, as a protective coating, and the outer conductor is exposed in the solder block between the pair of bars.

12 . The connector cable according to claim 11 , further comprising a connector housing in which the plurality of contacts is placed in the row,

wherein the connector housing includes

a front portion having a fitting hole at a front side and a plurality of slits on a top side, the fitting hole and the plurality of slits being interconnected inside the front portion, and front ends of the plurality of contacts being positioned thereinside, and

a rear portion having a first portion on which the plurality of cables is connected to rear ends of the plurality of contacts and a second portion through which the plurality of contacts extends toward the fitting hole.

13 . A connector cable comprising:

a plurality of contacts placed in a row;

a plurality of cables connected to the plurality of contacts, the plurality of cables including

a high-speed differential signal line portion including at least three pairs of high-speed differential signal lines, arranged adjacent to each other and transmitting high-speed differential signals, and

a power line portion including one or two power lines, arranged between two pairs of the at least three pairs of high-speed differential signal lines and supplying power;

a ground bar arranged under the plurality of cables; and

a plurality of ground terminals extending from the ground bar, and arranged to be allocated to contacts on both ends among the plurality of contacts and a contact between two pairs of the at least three pairs of high-speed differential signal lines and between one pair of the at least three pairs of high-speed differential signal lines and the power line portion,

wherein the power line portion is arranged among the high-speed differential signal line portion inside the plurality of ground terminals arranged to be allocated to the contacts on both ends such that the at least three pairs of high-speed differential signal lines are consecutively arranged up to two pairs,

each of the plurality of cables includes an inner conductor, a first insulator covering the inner conductor, and an outer conductor covering the first insulator, and

the ground bar is one plate-shaped member arranged under outer conductors of the plurality of cables and extending in a direction of the plurality of contacts placed in the row, and the outer conductors of the plurality of cables are collectively connected through the ground bar.