High bandwidth data transport system

• US 7,986,729 B2
• Filed: 10/18/2004
• Issued: 07/26/2011
• Est. Priority Date: 10/28/1999
• Status: Expired due to Fees

• Current Assignee: Lightwaves Systems, Inc.
• Original Assignee: Lightwaves Systems, Inc.
• Inventors: Melick, Bruce D., Baych, Leslie D., Snyder, David M., Gerke, Joseph A., Kennedy, Philip T., Probst, Gregory P.
• Primary Examiner(s): Payne; David C.
• Assistant Examiner(s): Perez; James M
• Application Number:
  US10/967,850
• Publication Number:
  US 20050131922A1
• Time in Patent Office: 2,472 Days
• Field of Search: 375135-136, 375/138, 375/295, 375/282, 375/333, 375/361, 375/377, 375/130, 375140-141, 375146-147, 375/239, 375256-258, 375/319, 375259-260, 342/175, 342/189, 342194-195, 342199-204
• US Class Current: 375/239
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 1/7172 Pulse shape in general H04L25/03834
• CPC Class Codes: H04B 1/7176 Data mapping, e.g. modulation
• CPC Class Codes: H04B 2203/5416 by adding signals to the wave form of the power source
• CPC Class Codes: H04L 25/0384 Design of pulse shapes pulse shape for impulse radio H04B1/7172
• CPC Class Codes: H04L 25/4902 Pulse width modulation; Pulse position modulation
• CPC Class Codes: H04L 27/0004 using wavelets
• CPC Class Codes: H04L 5/1469 using time-sharing

Abstract

The present invention provides for a methods, system, and apparatus relating to data transmission. One method of the present invention includes representing data using at least one ultra wideband pulse, sending the at least one ultra wideband pulse over an electrically conductive guided media, and recovering the data from the at least one ultra wideband pulse. The present invention can be used in conjunction with telephony applications, cable TV applications, power line applications, fiber optic applications, and data bus applications.

Claims

1. A method of data transmission across an electrically conductive guided media used for carrier wave-based transmissions, the method comprising:

selecting characteristics of a Gaussian wave form at least partially based on the electrically conductive guided media and the carrier wave-based transmissions;

representing data using at least one alternating counter pulse based on the Gaussian wave form wherein each of the at least one alternating counter pulse has a polarity approximately 180 degrees out of phase with respect to a previous pulse to thereby reduce a cumulative DC offset;

sending the at least one alternating counter pulse over the electrically conductive guided media during the carrier wave based transmissions across the electrically conductive guided media;

recovering the data from the at least one alternating counter pulse.

2. The method of claim 1 wherein the step of representing data includes representing data by modifying a time domain signature associated with each of the at least one pulse.

3. The method of claim 1 wherein the at least one alternating counter pulse includes a plurality of alternating counter pulses and variable spaces between the alternating pulses are used to represent data.

4. The method of claim 1 wherein variable pulse characteristics of the at least one alternating counter pulse are used to represent data.

5. The method of claim 1 wherein the guided media is selected from the set comprising a coaxial cable, a telephone twisted pair, a category 5 cable, a power line, and a metallic body.

6. The method of claim 1 further comprising sending the wave-based transmission over the guided media.

7. The method of claim 1 wherein the step of recovering the data from the at least one alternating counter pulse includes recovering the data from the at least one alternating counter pulse at least partially based on a time domain signature of the at least one alternating counter pulse.

8. The method of claim 1 wherein the step of representing data includes applying an m-ary modulation scheme based on timing of the at least one alternating counter pulse.

9. The method of claim 8 wherein m is an integer of at least 2.

10. A method of data transmission, comprising:

selecting characteristics of a Gaussian wave form at least partially based on the characteristics of an electrically conducting guided media and the carrier wave-based transmissions;

creating a plurality of alternating counter pulses based on the Gaussian waveform, the pulses having a time domain signature and a wideband frequency domain signature, wherein each of the pulses having a polarity approximately 180 degrees out of phase with respect to a previous pulse to thereby reduce a cumulative DC offset;

sending the plurality of pulses over the electrically conducting guided media simultaneously with sending the carrier wave-based transmissions over the guided media.

11. The method of claim 10 wherein the guided media is a cable line.

12. The method of claim 10 wherein the guided media is a telephone line.

13. The method of claim 10 further comprising receiving the plurality of pulses and extracting data associated with the plurality of alternating counter pulses.

14. A method of data transmission across an electrically conductive guided media used for carrier wave-based transmissions, the method comprising:

representing data using at least one alternating counter pulse of a duration between approximately 0.50025 ns to 2650 ns and the at least one alternating counter pulse being based on a Gaussian wave form having characteristics based at least partially on the electrically conductive guided media and the carrier wave-based transmissions;

sending the at least one alternating counter pulse over the electrically conductive guided media during the carrier wave-based transmissions across the electrically conductive guided media, wherein each of the at least one counter pulse has a polarity approximately 180 degrees out of phase with respect to a previous pulse to thereby reduce a cumulative DC offset;

recovering the data from the at least one alternating counter pulse by applying correlation to determine locations associated with the at least one alternating counter pulse.

15. The method of claim 14 wherein the electrically conductive guided media is selected from the set comprising a coaxial cable, a telephone twisted pair, a category 5 cable, a power line, and a metallic body.