Unlock instant, AI-driven research and patent intelligence for your innovation.

Communication cable

A communication cable and cable technology, applied in the direction of communication cables, cables, circuits, etc., can solve the problems such as difficult to compensate the attenuation characteristics of high-frequency bands of communication cables, and achieve the effects of high-speed signal transmission, reduced attenuation, and suppression of noise radiation

Inactive Publication Date: 2012-04-18
PANASONIC CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can be predicted that the speed of transmission signals will further increase in the future, and it is conceivable that it will be difficult to compensate for the attenuation characteristics of the high-frequency band in communication cables even with existing technologies.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Communication cable
  • Communication cable
  • Communication cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0078] figure 1 It is a figure which shows the structure of the communication cable in Embodiment 1 of this invention. The communication cable of this embodiment includes a first plug 101, a second plug 102, a cable main body 103, a first internal substrate 104, a second internal substrate 105, a serial-parallel conversion circuit 106, a parallel-serial conversion circuit 107, a second A serial single-ended signal line 108 , a second serial single-ended signal line 109 , and a parallel single-ended signal line 110 . The serial-to-parallel conversion circuit 106 and the parallel-to-serial conversion circuit 107 are conversion circuits that perform a 1:4 serial-to-parallel conversion. The serial-parallel conversion circuit 106 and the parallel-serial conversion circuit 107 include output drive circuits 106 a and 107 a inside. The output drive circuits 106a and 107a may be voltage drive circuits or current drive circuits.

[0079] The cable main body 103 is a signal cable conn...

Embodiment approach 2

[0084] image 3 It is a figure which shows the structure of the communication cable in Embodiment 2 of this invention. exist image 3 in, for with figure 1 The same symbols are assigned to equivalent or similar constituent elements, and their descriptions are omitted.

[0085] The communication cable of this embodiment includes: a serial-parallel conversion circuit 306 provided on the first internal substrate 104, a parallel-serial conversion circuit 307 provided on the second internal substrate 105, and a second serial-to-serial conversion circuit provided on the first plug 101. A serial differential signal line 308 , a second serial differential signal line 309 disposed on the second plug 102 , and a parallel differential signal line 310 disposed on the cable main body 103 . The first and second serial differential signal lines 308 and 309 are composed of signal lines 316 and 317 .

[0086] The serial-to-parallel conversion circuit 306 converts one pair of serial differe...

Embodiment approach 3

[0091] Figure 5 It is a figure which shows the structure of the communication cable in Embodiment 3 of this invention. exist Figure 5 in, for with figure 1 , image 3 For the same constituent elements, the same symbols are used and explanations are omitted.

[0092] This embodiment is characterized by including a serial-parallel conversion circuit 506 and a parallel-serial conversion circuit 507 . The serial-parallel conversion circuit 506 converts one serial single-ended signal (first serial signal) supplied from the first serial single-ended signal line 108 into four pairs of parallel differential signals, and outputs them to the parallel differential signal line 310. The parallel-serial conversion circuit 507 converts the four pairs of parallel differential signals supplied from the parallel differential signal line 310 into one serial single-ended signal (second serial signal) and outputs it to the second serial single-ended signal line 109.

[0093] figure 2 (a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A serial-parallel conversion circuit provided at one end of a cable converts a first serial signal to a parallel signal and inputs the signal to a parallel signal line. A parallel-serial conversion circuit provided at the other end of the cable converts the parallel signal output from the parallel signal line to a second serial signal and outputs the signal to the outside.

Description

technical field [0001] The present invention relates to a communication cable capable of high-speed signal transmission. Background technique [0002] In recent years, the speed of digital interfaces between devices and within devices has been increasing. However, for parallel interfaces that transmit multiple signals in parallel, the faster the signal transmission speed becomes, the more difficult it is to achieve synchronization of each signal. The high-speed signal transmission become difficult. Therefore, high-speed serial interfaces suitable for signal transmission, such as HDMI (High-Definition Multimedia Interface) and USB (Universal Serial Bus), permeate electronic equipment such as computer terminals and AV equipment. The transfer speed has also been increased. However, the attenuation of the signal in the communication cable increases due to the increase in the speed of the signal transmitted in the cable, and the radiation noise from the cable also increases. F...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02H01B11/00H01B11/12H04B3/02
CPCH04L25/0272
Inventor 增田耕平末永宽柴田修齐藤义行
Owner PANASONIC CORP