System and method of using variable pulses for symbology

• US 20050063708A1
• Filed: 10/11/2004
• Published: 03/24/2005
• Est. Priority Date: 03/21/2000
• Status: Active Grant

• Current Assignee: Lightwaves Systems, Inc.
• Original Assignee: Lightwaves Systems, Inc.
• Inventors: Melick, Bruce D., Baych, Leslie D., Snyder, David M.
• Granted Patent: US 7,376,357 B2
• Time in Patent Office: Days
• US Class Current: 398/141
• CPC Class Codes: H04B 1/7176 Data mapping, e.g. modulation
• CPC Class Codes: H04B 10/508 Pulse generation, e.g. generation of solitons
• CPC Class Codes: H04B 10/524 Pulse modulation
• CPC Class Codes: H04B 14/026 using pulse time characteristics modulation, e.g. width, position, interval

Abstract

A method and system for storing and transmitting data using variable pulse symbology over a fiber optic or ultra wide band system. Data is stored in memory, accessed and transformed into an electronic or photonic pulse and/or space which has a variable duration, the duration corresponding to the bit of data to be transmitted. The duration of the pulse and/or space is selected from a list of predetermined durations, each corresponding to a different base 10 number. The pulses and spaces may both be used to represent data, or the spaces may be used for meta data. Variable duration pulses may also be used to store data on an optical storage medium or fiber optic cable.

Claims

1-20. -20. (cancelled).

21. A method of providing symbology for representing data in transmission of pulses to increase efficiency of the transmission, comprising:

determining a subset of bit sequences within a set of bit sequences to represent with single variable duration pulses or single variable duration spaces;

assigning a single pulse duration or a single pulse spacing to each of the subset of bit sequences.

22. The method of claim 21 further comprising assigning a combination of variable duration pulses or a combination of variable duration spaces to bit sequences within the set of bit sequences which are not within the subset of bit sequences.

23. The method of claim 21 wherein the bit sequences correspond to UNICODE symbology.

24. The method of claim 23 wherein the subject of bit sequences correspond with number symbols 0 to 9.

25. The method of claim 21 wherein the bit sequences correspond to ASCII symbology.

26. The method of claim 25 wherein the subset of bit sequences correspond with number symbols 0 to 9.

27. The method of claim 21 further comprising transmitting the pulses.

28. The method of claim 21 wherein the pulses are photonic pulses.

29. The method of claim 21 wherein the pulses are electronic pulses.

30. The method of claim 21 wherein members of the subset of bit sequences occur more frequently than bit sequences which are not within the subset of bit sequences in the transmission.