CA2482208A1 - Distance extender and method making use of same - Google Patents
Distance extender and method making use of same Download PDFInfo
- Publication number
- CA2482208A1 CA2482208A1 CA002482208A CA2482208A CA2482208A1 CA 2482208 A1 CA2482208 A1 CA 2482208A1 CA 002482208 A CA002482208 A CA 002482208A CA 2482208 A CA2482208 A CA 2482208A CA 2482208 A1 CA2482208 A1 CA 2482208A1
- Authority
- CA
- Canada
- Prior art keywords
- subsystem
- computer
- signal
- electrically coupled
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/44—Arrangements for feeding power to a repeater along the transmission line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5445—Local network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/545—Audio/video application, e.g. interphone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5479—Systems for power line communications using repeaters
Abstract
A distance extender (100, 200) for increasing a distance between a first device (145) and a second device (150) in electrical communication with the first device includes an electrical cable (130, 230) electrically coupled between the first device and the second device, a first subsystem (110, 210) electrically coupled to the first end of the electrical cable, and a second subsystem (120, 220) electrically coupled to the second end of the electrical cable. The electrical cable includes a first end (131, 231), a second end (132, 232), and a plurality of wires extending between the first end and the second end. The plurality of wires includes a first wire, the first device generates a data signal and provides an electrical power signal, and the data signal and the electrical power signal are simultaneously transmitted between the first device and the second device over the first wire.
Claims (35)
1. A distance extender for increasing a distance between a first device and a second device in electrical communication with the first device, the distance extender comprising:
an electrical cable electrically coupled between the first device and the second device and comprising:
a first end;
a second end; and a plurality of wires extending between the first end and the second end;
a first subsystem electrically coupled to the first end of the electrical cable and to the first device; and a second subsystem electrically coupled to the second end of the electrical cable and to the second device, wherein:
the first device or the second device generates a data signal and the first device provides an electrical power signal;
the plurality of wires includes a first wire; and the data signal and the electrical power signal are simultaneously transmitted between the first device and the second device over the first wire.
an electrical cable electrically coupled between the first device and the second device and comprising:
a first end;
a second end; and a plurality of wires extending between the first end and the second end;
a first subsystem electrically coupled to the first end of the electrical cable and to the first device; and a second subsystem electrically coupled to the second end of the electrical cable and to the second device, wherein:
the first device or the second device generates a data signal and the first device provides an electrical power signal;
the plurality of wires includes a first wire; and the data signal and the electrical power signal are simultaneously transmitted between the first device and the second device over the first wire.
2. The distance extender of claim 1 wherein:
the data signal comprises at least one of mouse data and keyboard data and is transmitted from the first device to the second device and from the second device to the first device.
the data signal comprises at least one of mouse data and keyboard data and is transmitted from the first device to the second device and from the second device to the first device.
3. The distance extender of claim 1 wherein:
the first wire forms a portion of a first wire pair; and the data signal and the electrical power signal are simultaneously transmitted between the first device and the second device over the first wire pair.
the first wire forms a portion of a first wire pair; and the data signal and the electrical power signal are simultaneously transmitted between the first device and the second device over the first wire pair.
4. The distance extender of claim 1 further comprising:
a switch electrically coupled between the first device and the second device.
a switch electrically coupled between the first device and the second device.
5. The distance extender of claim 4 wherein:
the switch is a keyboard; video; and mouse switch.
the switch is a keyboard; video; and mouse switch.
6. The distance extender of claim 4 wherein:
the switch is electrically coupled between the first device and the first subsystem.
the switch is electrically coupled between the first device and the first subsystem.
7. The distance extender of claim 4 wherein:
the switch is electrically coupled between second subsystem and the second device.
the switch is electrically coupled between second subsystem and the second device.
8. The distance extender of claim 4 further comprising:
a third subsystem substantially similar to the first subsystem; and a fourth subsystem substantially similar to the second subsystem, wherein:
the third subsystem is electrically coupled between the switch and the fourth subsystem;
the fourth subsystem is electrically coupled between the third subsystem and the second device; and the switch is electrically coupled between the second subsystem and the third subsystem.
a third subsystem substantially similar to the first subsystem; and a fourth subsystem substantially similar to the second subsystem, wherein:
the third subsystem is electrically coupled between the switch and the fourth subsystem;
the fourth subsystem is electrically coupled between the third subsystem and the second device; and the switch is electrically coupled between the second subsystem and the third subsystem.
9. The distance extender of claim 1 wherein:
the electrical cable comprises four unshielded twisted wire pairs; and the first wire is a portion of one of the four unshielded twisted wire pairs.
the electrical cable comprises four unshielded twisted wire pairs; and the first wire is a portion of one of the four unshielded twisted wire pairs.
10. The distance extender of claim 1 wherein:
power to operate at least a portion of the second device is provided only by the electrical power signal.
power to operate at least a portion of the second device is provided only by the electrical power signal.
11. The distance extender of claim 1 wherein:
the first subsystem comprises at least one of:
a voltage boost circuit;
a modulation/demodulation circuit;
a filter circuit;
a detection circuit; and a pre-emphasis circuit.
the first subsystem comprises at least one of:
a voltage boost circuit;
a modulation/demodulation circuit;
a filter circuit;
a detection circuit; and a pre-emphasis circuit.
12. The distance extender of claim 1 wherein:
the second subsystem comprises:
a voltage conversion circuit; and an attenuation compensation circuit.
the second subsystem comprises:
a voltage conversion circuit; and an attenuation compensation circuit.
13. A distance extender for increasing a distance between a computer and an operator control center in electrical communication with the computer, the distance extender comprising:
a Category 5-type cable comprising:
a first end;
a second end; and a plurality of wires extending between the first end and the second end, the plurality of wires comprising:
a first twisted pair;
a second twisted pair;
a third twisted pair; and a fourth twisted pair;
a first subsystem electrically coupled between the first end of the Category 5-type cable and the computer; and a second subsystem electrically coupled between the second end of the Category type cable and the operator control center, wherein:
the operator control center comprises:
a computer keyboard;
a computer video monitor; and a computer mouse;
the computer provides an electrical power signal and the computer or the operator control center generates a data signal and a plurality of video signals;
the plurality of video signals are transmitted between the first subsystem and the second subsystem over the first, second, and third twisted pairs; and the data signal and the electrical power signal are simultaneously transmitted between the first subsystem and the second subsystem over the fourth twisted pair.
a Category 5-type cable comprising:
a first end;
a second end; and a plurality of wires extending between the first end and the second end, the plurality of wires comprising:
a first twisted pair;
a second twisted pair;
a third twisted pair; and a fourth twisted pair;
a first subsystem electrically coupled between the first end of the Category 5-type cable and the computer; and a second subsystem electrically coupled between the second end of the Category type cable and the operator control center, wherein:
the operator control center comprises:
a computer keyboard;
a computer video monitor; and a computer mouse;
the computer provides an electrical power signal and the computer or the operator control center generates a data signal and a plurality of video signals;
the plurality of video signals are transmitted between the first subsystem and the second subsystem over the first, second, and third twisted pairs; and the data signal and the electrical power signal are simultaneously transmitted between the first subsystem and the second subsystem over the fourth twisted pair.
14. The distance extender of claim 13 wherein:
the first subsystem, the second subsystem, the computer keyboard, and the computer mouse are powered only by the electrical power signal.
the first subsystem, the second subsystem, the computer keyboard, and the computer mouse are powered only by the electrical power signal.
15. The distance extender of claim 14 wherein:
the first subsystem comprises:
a voltage boost circuit;
a modulation/demodulation circuit;
a filter circuit;
a detection circuit; and a pre-emphasis circuit.
the first subsystem comprises:
a voltage boost circuit;
a modulation/demodulation circuit;
a filter circuit;
a detection circuit; and a pre-emphasis circuit.
16. The distance extender of claim 15 wherein:
the second subsystem comprises:
a voltage conversion circuit;
a modulation/demodulation circuit;
a filter circuit; and an attenuation compensation circuit.
the second subsystem comprises:
a voltage conversion circuit;
a modulation/demodulation circuit;
a filter circuit; and an attenuation compensation circuit.
17. The distance extender of claim 16 wherein:
the pre-emphasis circuit increases a high-frequency portion of the plurality of video signals before the plurality of video signals are transmitted across the first, second, and third twisted pairs; and the attenuation compensation circuit compensates for a loss of amplitude in the plurality of video signals after the plurality of video signals are transmitted across the first;
second, and third twisted pairs.
the pre-emphasis circuit increases a high-frequency portion of the plurality of video signals before the plurality of video signals are transmitted across the first, second, and third twisted pairs; and the attenuation compensation circuit compensates for a loss of amplitude in the plurality of video signals after the plurality of video signals are transmitted across the first;
second, and third twisted pairs.
18. The distance extender of claim 15 wherein:
the first subsystem receives the electrical power signal from the computer;
and the voltage boost circuit boosts the electrical voltage signal before passing the electrical power signal to the Category 5-type cable.
the first subsystem receives the electrical power signal from the computer;
and the voltage boost circuit boosts the electrical voltage signal before passing the electrical power signal to the Category 5-type cable.
19. The distance extender of claim 14 further comprising:
a keyboard, video, and mouse switch electrically coupled between the computer and the operator control center.
a keyboard, video, and mouse switch electrically coupled between the computer and the operator control center.
20. The distance extender of claim 19 wherein:
the keyboard, video, and mouse switch is electrically coupled between the first subsystem and the computer.
the keyboard, video, and mouse switch is electrically coupled between the first subsystem and the computer.
21. The distance extender of claim 19 wherein:
the keyboard; video, and mouse switch is electrically coupled between the second subsystem and the operator control center.
the keyboard; video, and mouse switch is electrically coupled between the second subsystem and the operator control center.
22. The distance extender of claim 19 further comprising:
a third subsystem substantially similar to the first subsystem; and a fourth subsystem substantially similar to the second subsystem, wherein:
the third subsystem is electrically coupled between the keyboard, video, and mouse switch and the fourth subsystem;
the fourth subsystem is electrically coupled between the third subsystem and the operator control center; and the keyboard, video, and mouse switch is electrically coupled between the second subsystem and the third subsystem.
a third subsystem substantially similar to the first subsystem; and a fourth subsystem substantially similar to the second subsystem, wherein:
the third subsystem is electrically coupled between the keyboard, video, and mouse switch and the fourth subsystem;
the fourth subsystem is electrically coupled between the third subsystem and the operator control center; and the keyboard, video, and mouse switch is electrically coupled between the second subsystem and the third subsystem.
23. A method for increasing a distance between a computer and an operator control center in electrical communication with the computer where the electrical communication is accomplished via a cable having a first wire pair and a second wire pair, the method comprising:
providing a first subsystem to be coupled to a first end of the cable;
providing a second subsystem to be coupled to a second end of the cable such that an electrical power signal provided by the computer and a data signal generated by the computer or the operator control center are transmitted simultaneously across the first wire pair between the computer and the operator control center.
providing a first subsystem to be coupled to a first end of the cable;
providing a second subsystem to be coupled to a second end of the cable such that an electrical power signal provided by the computer and a data signal generated by the computer or the operator control center are transmitted simultaneously across the first wire pair between the computer and the operator control center.
24. The method of claim 23 further comprising:
providing a switch; and electrically coupling the switch between the computer and the operator control center.
providing a switch; and electrically coupling the switch between the computer and the operator control center.
25. The method of claim 24 further comprising:
electrically coupling the switch between the computer and the first subsystem;
and electrically coupling the second subsystem between the first subsystem and the operator control center.
electrically coupling the switch between the computer and the first subsystem;
and electrically coupling the second subsystem between the first subsystem and the operator control center.
26. The method of claim 24 further comprising:
electrically coupling the switch between the second subsystem and the operator control center; and electrically coupling the first subsystem between the computer and the second subsystem.
electrically coupling the switch between the second subsystem and the operator control center; and electrically coupling the first subsystem between the computer and the second subsystem.
27. The method of claim 24 further comprising:
providing a third subsystem substantially similar to the first subsystem;
providing a fourth subsystem substantially similar to the second subsystem;
electrically coupling the third subsystem between the switch and the fourth subsystem;
electrically coupling the fourth subsystem between the third subsystem and the operator control center, and electrically coupling the switch between the second subsystem and the third subsystem.
providing a third subsystem substantially similar to the first subsystem;
providing a fourth subsystem substantially similar to the second subsystem;
electrically coupling the third subsystem between the switch and the fourth subsystem;
electrically coupling the fourth subsystem between the third subsystem and the operator control center, and electrically coupling the switch between the second subsystem and the third subsystem.
28. The method of claim 23 further comprising:
modulating the data signal to create a modulated data signal;
modifying the electrical power signal to create a boosted electrical voltage signal;
coupling the modulated data signal onto the electrical power signal to create a combined signal; and transmitting the combined signal across the first wire pair between the computer and the operator control center.
modulating the data signal to create a modulated data signal;
modifying the electrical power signal to create a boosted electrical voltage signal;
coupling the modulated data signal onto the electrical power signal to create a combined signal; and transmitting the combined signal across the first wire pair between the computer and the operator control center.
29. The method of claim 28 further comprising:
using the computer to generate a video signal; and transmitting the video signal across the second wire pair between the computer and the operator control center.
using the computer to generate a video signal; and transmitting the video signal across the second wire pair between the computer and the operator control center.
30. The method of claim 29 further comprising:
demodulating the modulated data signal after transmitting the modulated data signal across the first wire pair; and reducing the boosted electrical voltage signal after transmitting the boosted electrical voltage signal across the first wire pair.
demodulating the modulated data signal after transmitting the modulated data signal across the first wire pair; and reducing the boosted electrical voltage signal after transmitting the boosted electrical voltage signal across the first wire pair.
31. The method of claim 30 further comprising:
compensating for attenuation of the video signal after transmitting the video signal across the second wire pair.
compensating for attenuation of the video signal after transmitting the video signal across the second wire pair.
32. The method of claim 30 further comprising:
compensating for attenuation of the video signal before transmitting the video signal across the second wire pair.
compensating for attenuation of the video signal before transmitting the video signal across the second wire pair.
33. The method of claim 32 further comprising:
compensating for attenuation of the video signal after transmitting the video signal across the second wire pair.
compensating for attenuation of the video signal after transmitting the video signal across the second wire pair.
34. The method of claim 31 further comprising:
filtering the combined signal to prevent the modulated data signal from interfering with the boosted electrical voltage signal.
filtering the combined signal to prevent the modulated data signal from interfering with the boosted electrical voltage signal.
35. The method of claim 34 further comprising:
detecting the presence of the second subsystem at the first subsystem before enabling the electrical power signal.
detecting the presence of the second subsystem at the first subsystem before enabling the electrical power signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/670,403 US7259482B2 (en) | 2003-09-24 | 2003-09-24 | Distance extender and method making use of same |
| US10/670,403 | 2003-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2482208A1 true CA2482208A1 (en) | 2005-03-24 |
| CA2482208C CA2482208C (en) | 2011-03-22 |
Family
ID=34194822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2482208A Expired - Fee Related CA2482208C (en) | 2003-09-24 | 2004-09-21 | Distance extender and method making use of same |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US7259482B2 (en) |
| EP (1) | EP1519495B1 (en) |
| AT (1) | ATE487285T1 (en) |
| AU (1) | AU2004214549B2 (en) |
| CA (1) | CA2482208C (en) |
| DE (1) | DE602004029854D1 (en) |
| ES (1) | ES2355622T3 (en) |
| NZ (1) | NZ535506A (en) |
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-
2003
- 2003-09-24 US US10/670,403 patent/US7259482B2/en not_active Expired - Fee Related
-
2004
- 2004-09-21 CA CA2482208A patent/CA2482208C/en not_active Expired - Fee Related
- 2004-09-23 AU AU2004214549A patent/AU2004214549B2/en not_active Ceased
- 2004-09-23 NZ NZ535506A patent/NZ535506A/en not_active IP Right Cessation
- 2004-09-24 DE DE602004029854T patent/DE602004029854D1/en active Active
- 2004-09-24 ES ES04255820T patent/ES2355622T3/en active Active
- 2004-09-24 AT AT04255820T patent/ATE487285T1/en not_active IP Right Cessation
- 2004-09-24 EP EP04255820A patent/EP1519495B1/en not_active Not-in-force
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2007
- 2007-04-25 US US11/789,893 patent/US7432619B2/en not_active Expired - Fee Related
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|---|---|
| ES2355622T3 (en) | 2011-03-29 |
| AU2004214549B2 (en) | 2009-04-23 |
| EP1519495A3 (en) | 2006-08-16 |
| US7259482B2 (en) | 2007-08-21 |
| US7432619B2 (en) | 2008-10-07 |
| CA2482208C (en) | 2011-03-22 |
| NZ535506A (en) | 2006-01-27 |
| AU2004214549A1 (en) | 2005-04-07 |
| ATE487285T1 (en) | 2010-11-15 |
| EP1519495A2 (en) | 2005-03-30 |
| US20070284949A1 (en) | 2007-12-13 |
| US20050063108A1 (en) | 2005-03-24 |
| EP1519495B1 (en) | 2010-11-03 |
| DE602004029854D1 (en) | 2010-12-16 |
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