Cable for differential serial transmission

Patent metadata

Field	Value
Publication number	US-9934888-B2
Application number	US-201515519415-A
Country	US
Kind code	B2
Filing date	Oct 20, 2015
Priority date	Oct 22, 2014
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

Provided is a cable including: at least two signal cables formed of first and second signal cables for differential transmission; a third cable for ground; a fourth cable for power supply; a metal sheet adapted to cover the first and second signal cables; a coating material adapted to house the first and second signal cables covered with the metal sheet, and the third and fourth cables; and a magnetic powder-mixed resin filled into an inner space of the coating material and prepared by mixing magnetic powder with a resin.

First claim

The invention claimed is:

1. A cable, comprising:
at least a first signal cable and a second signal cable for differential transmission;
a third cable for ground;
a fourth cable for power supply;
a metal sheet configured to cover the first signal cable and the second signal cable;
a coating material configured to house the first signal cable, the second signal cable, the third cable and the fourth cable; and
a magnetic powder-mixed resin filled into a space between an inner peripheral surface of the coating material and the metal sheet, the third cable, and the fourth cable,
wherein the magnetic powder-mixed resin is a mixture of magnetic powder and a resin.

2. The cable according to claim 1 , wherein a mixing ratio of the magnetic powder in the magnetic powder-mixed resin is 70 wt % or more.

3. The cable according to claim 1 , wherein the magnetic powder is one of ferrite or permalloy.

4. The cable according to claim 1 , wherein the first signal cable is twisted with the second signal cable.

5. The cable according to claim 1 , wherein each of the first signal cable and the second signal cable comprises a plurality of copper wires and an aramid fiber.

6. The cable according to claim 5 , further comprising a coating film of an insulation resin on each of the first signal cable and the second signal cable.

7. The cable according to claim 1 , wherein each of the third cable and the fourth cable comprises a plurality of copper wires and an aramid fiber.

8. The cable according to claim 7 , further comprising a coating film of an insulation resin on each of the third cable and the fourth cable.

9. The cable according to claim 1 , further comprising a drain, wherein the drain is covered with the metal sheet.

10. The cable according to claim 1 , wherein a transmission via the cable is based on a USB standard.

11. The cable according to claim 1 , further comprising:
a ferrite core configured to surround a partial section of the cable; and
a molding resin on an outer side of the ferrite core.

12. The cable according to claim 11 , wherein the molding resin is mixed with the magnetic powder.

Assignees

• Sony Semiconductor Solutions Corp
• Sony Corp

Inventors

• Yoshino Yoshitaka
• Tsuboi Satoru
• Makishima Makoto
• MURAKAMI Tomomichi

Classifications

• H01B11/20

  Cables having a multiplicity of coaxial lines · CPC title

• H01B11/02

  Cables with twisted pairs or quads · CPC title

• H01B1/026

  Alloys based on copper · CPC title

• H05K9/0075

  Magnetic shielding materials · CPC title

• H01B11/1895 Primary

  Particular features or applications · CPC title