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A high-speed transmission cable for hdmi signal conversion

A high-speed transmission and signal conversion technology, applied in the electronic field, can solve problems such as affecting transmission performance, high labor costs, and difficult to maintain a fixed distance between sub-line centers

Active Publication Date: 2021-04-13
中山市赛奇特电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the sub-wires of the current HDMI cable generally adopt a twisted wire structure, that is, several pairs of sub-wires are twisted into a helical shape along the length direction. The center distance between the sub-wires of this structure is difficult to maintain fixed, and the problem of impedance instability will occur, which affects transmission performance
[0003] Chinese patent application CN102254592A discloses a new type of HDMI cable body, which includes an insulating outer layer and a core wire group covered by an insulating outer layer, wherein the core wire group includes a first core wire group and a first core wire group A set of mutually independent second core wire groups, the first core wire group and the second core wire group both include several signal wire groups and several ground wires, each signal wire group is covered with a shielding layer, and several signal wire groups Arranged in parallel with the ground wires in the first core wire group and the second core wire group; the new HDMI cable body of the invention can well solve the heavy workload and low efficiency caused by the arrangement of the core wires in the traditional HDMI cable body. Low and high labor costs

Method used

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  • A high-speed transmission cable for hdmi signal conversion
  • A high-speed transmission cable for hdmi signal conversion
  • A high-speed transmission cable for hdmi signal conversion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A core wire made of alloy material; the core wire is composed of 1.0% Ni, 0.1% Pt, 0.15% Te, and 98.75% Cu by weight percentage.

[0037] Furthermore, the preparation method of the core wire includes the following steps:

[0038] (1) Take each metal according to the mass ratio, soak it with hydrochloric acid with a mass fraction of 4% for 10 minutes to remove the surface oxide, then clean and dry it with absolute ethanol;

[0039] (2) Heating Cu in a melting furnace to melt it, adding Ni and stirring, until it is completely melted to obtain molten liquid I;

[0040] (3) heating Pt and Te in a melting furnace to melt them to obtain molten liquid II;

[0041] (4) Mix the molten liquid I with the molten liquid II, and stir for 20 minutes to obtain the molten liquid III;

[0042] (5) The molten liquid III is degassed through an online degassing system, and cast at 1100° C. to obtain an ingot with a casting speed of 3 t / h.

[0043] (6) After the ingot is rolled, it is rap...

Embodiment 2

[0046] A core wire made of alloy material; the core wire is composed of Ni1.2%, Pt0.3%, Te0.55%, Cu97.95% by weight percentage.

[0047] Furthermore, the preparation method of the core wire includes the following steps:

[0048] (1) Take each metal according to the mass ratio, soak it with hydrochloric acid with a mass fraction of 4% for 15 minutes to remove surface oxides, then clean and dry it with absolute ethanol;

[0049] (2) Heating Cu in a melting furnace to melt it, adding Ni and stirring, until it is completely melted to obtain molten liquid I;

[0050] (3) heating Pt and Te in a melting furnace to melt them to obtain molten liquid II;

[0051] (4) Mix the molten liquid I with the molten liquid II, and stir for 15 minutes to obtain the molten liquid III;

[0052] (5) The molten liquid III is degassed through an online degassing system, and cast at 1150° C. to obtain an ingot with a casting speed of 3 t / h.

[0053] (6) After the ingot is rolled, it is rapidly cooled t...

Embodiment 3

[0056] A core wire made of alloy material; the core wire is composed of 1.0% Ni, 0.25% Pt, 0.40% Te, and 98.35% Cu by weight percentage.

[0057] Furthermore, the preparation method of the core wire includes the following steps:

[0058] (1) Take each metal according to the mass ratio, soak it with hydrochloric acid with a mass fraction of 4% for 15 minutes to remove surface oxides, then clean and dry it with absolute ethanol;

[0059] (2) Heating Cu in a melting furnace to melt it, adding Ni and stirring, until it is completely melted to obtain molten liquid I;

[0060] (3) heating Pt and Te in a melting furnace to melt them to obtain molten liquid II;

[0061] (4) Mix the molten liquid I with the molten liquid II, and stir for 12 minutes to obtain the molten liquid III;

[0062] (5) The molten liquid III is degassed through an online degassing system, and cast at 1120° C. to obtain an ingot at a casting speed of 3 t / h.

[0063] (6) After the ingot is rolled, it is rapidly...

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Abstract

The invention belongs to the field of electronic technology, and in particular relates to a high-speed transmission cable used for HDMI signal conversion. The cable includes an insulating outer layer, a braided layer and a core wire group; wherein, the outer layer of the core wire group wraps the braided layer, and the braided layer wraps the insulating outer layer; the core wire group includes a signal wire group, several ground wires and power wires ; The signal line group includes four data line pairs, one clock line pair, HEAC line, HPD line, SCL line, SDA line, and CEC line. By redesigning the circuit, the invention makes the signal transmission quality of the product good, the impedance is good, and the transmission speed is fast; and this improvement also improves the transmission capacity of the cable.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to a high-speed transmission cable used for HDMI signal conversion. Background technique [0002] HDMI (High-definition Digital Multimedia Interface), also known as high-definition digital multimedia video / audio interface, is a digital video / audio interface technology. Digital interface for intelligibility, multi-channel audio and smart format and control command data. It has excellent high-speed data transmission capability and high integration capability of synchronous audio and video transmission, has a wide transmission bandwidth, has the ability to cope with future signal quality upgrades, supports signals from two-way communication between display devices, and supports HDPC encryption. Effective copyright protection, small size, and compatible with DVI interface. Although HDMI has many advantages, when the HDMI cable is long, signal transmission distortion wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/04H01B7/17H01B7/22
CPCH01B7/04H01B7/17H01B7/22
Inventor 林丙厚陈小萱
Owner 中山市赛奇特电子有限公司