METHOD, SYSTEM, AND APPARATUS FOR PROCESSING AIRCRAFT DATA FILES

• US 20030202527A1
• Filed: 04/24/2002
• Published: 10/30/2003
• Est. Priority Date: 04/24/2002
• Status: Active Grant

• Current Assignee: Teledyne Controls, LLC (Teledyne Technologies Incorporated)
• Original Assignee: Teledyne Technologies Incorporated
• Inventors: Nahapetian, Armen, Karimi, Ghobad
• Granted Patent: US 6,654,386 B2
• Time in Patent Office: Days
• US Class Current: 370/412
• CPC Class Codes: H03M 7/30 Compression speech analysis-synthesis for redundancy reduction G10L19/00; for image communication H04N; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Abstract

A method, system, and apparatus of processing a data file stored in a computer memory in digital form. The method including selecting a packet size that is a number of bits between one and a subframe size within an input file containing data stored in frames and subframes format, wherein the data file stored in a computer memory in digital form; separating the data into consecutive packets of the selected size; repositioning the packets located in similar positions within a frame adjacent to one another; and storing the packets in an output file for further processing by a compression algorithm. The system includes a processor for executing the method and a memory for storing an output data file. The apparatus including a computer readable medium having computer executable instructions thereon for executing the method.

Claims

1. A method of processing a data file, the method comprising:

selecting a packet size that is a number of bits between one and a subframe size within an input file containing data stored in frames and subframes format, wherein the data file is stored in a computer memory in digital form;

separating the data into consecutive packets of the selected size;

repositioning the packets located in similar positions within a frame adjacent to one another; and

storing the packets in an output file.

2. The method of claim 1, further comprising processing the output file by a compression algorithm.

3. The method of claim 1, further comprising parsing the input file for determining the subframe size.

4. The method of claim 1, wherein the subframe comprises a plurality of words.

5. The method of claim 4, wherein the subframe comprises any one of 2, 4, 8, 16, 32, 64, 128, 256, 3 84, 512, 1024, 2048 words.

6. The method of claim 5, wherein the plurality of words in the subframe comprise any one of 2, 4, 8, 12, 16, and 32 bits.

7. The method of claim 1, wherein the frame comprises a plurality of subframes.

8. The method of claim 7, wherein the frame comprises four subframes.

9. A method of processing a compressed data file, the method comprising:

decompressing a compressed data file stored in a computer memory in digital form, the compressed data file containing a predetermined packet size identifier, repositioned packets located in similar positions within a frame adjacent to one another, and separated consecutive packets of the predetermined packet size, wherein the predetermined packet size is between one and a subframe size;

repositioning the adjacent consecutive packets of the predetermined size into an original position within the frame; and

storing the decompressed repositioned frames in an output file.

10. The method of claim 9, wherein the subframe comprises a plurality of words.

11. The method of claim 10, wherein the subframe comprises any one of 2, 4, 8, 16, 32, 64, 128, 256, 384, 512, 1024, and 2048 words.

12. The method of claim 11, wherein the plurality of bits in the subframe comprise any one of 1, 2, 4, 8, 12, 16, and 32 bits.

13. The method of claim 9, wherein the frame comprises a plurality of subframes.

14. The method of claim 13, wherein the frame comprises four subframes.

15. A method of processing a data file, the method comprising:

selecting a number of frames to be processed within the data file containing data stored in frames and subframes format, wherein the data file is stored in a computer memory in digital form, and wherein the number of frames are selected according to an available amount of memory in the computer;

creating an output file to store the processed data;

selecting a packet size that is a number of bits between one and a subframe size;

separating the data into consecutive packets of the selected size;

repositioning the packets located in similar positions within a frame adjacent to one another;

appending the processed packets to the output file;

repeating the selecting, separating, repositioning, and appending steps for the number of selected frames;

processing a remaining portion of the input file containing less than the selected number of frames; and

storing the output file for further processing by a compression algorithm.

16. The method of claim 15, further comprising parsing the input file to determine the subframe size.

17. The method of claim 15, wherein the subframe comprises a plurality of words.

18. The method of claim 17, wherein the subframe comprises any one of 1, 2, 4, 8, 16, 32, 64, 128, 256, 384, 512, 1024, and 2048 words.

19. The method of claim 18, wherein the plurality of bits in the subframe comprise any one of 1, 2, 4, 8, 12, 16, and 32 bits.

20. The method of claim 15, wherein the frame comprises a plurality of subframes.

21. The method of claim 20, wherein the frame comprises four subframes.

22. A method of processing a compressed data file, the method comprising:

decompressing a selected portion of the compressed data file stored in a computer memory in digital form, the compressed data file containing a predetermined packet size identifier, repositioned packets located in similar positions within a frame adjacent to one another, and separated consecutive packets of the predetermined packet size, wherein the predetermined packet size is a number of bits between one and a subframe size;

repositioning the adjacent consecutive packets of the predetermined size into an original position within the frame;

repeating the decompressing and the repositioning steps until all portions of the compressed file of the selected size are decompressed;

decompressing a portion of the compressed data file of less than the selected size; and

storing the decompressed repositioned frames in an output file.

23. A system for processing a data file, the system comprising:

a processor for selecting a packet size that is a number of bits between one and a subframe size within the data input file containing data stored in frames and subframes format, wherein the data file is stored in a computer memory in digital form;

separating the data into consecutive packets of the selected size; and

repositioning the packets located in similar positions within a frame adjacent to one another; and

a memory for storing the packets in an output file.

24. The system of claim 23, wherein the output file is further processed by a compression algorithm.

25. A system for processing a compressed data file, the system comprising:

a processor for decompressing the compressed data file stored in a computer memory in digital form, the compressed data file containing a predetermined packet size identifier, repositioned packets located in similar positions within a frame adjacent to one another, and separated consecutive packets of the predetermined packet size, wherein the predetermined packet size is a number of bits between one and a subframe size;

repositioning the adjacent consecutive packets of the predetermined size into an original position within the frame; and

a memory for storing the decompressed repositioned frames in an output file.

26. A system for processing a data file stored in a computer memory in digital form, comprising:

a processor for;

selecting a number of frames to be processed within an input file containing data stored in frames and subframes format, wherein the data file is stored in a computer memory in digital form, and wherein the number of frames is selected according to an available amount of memory in the computer;

creating an output file to store the processed data;

selecting a packet size that is a number of bits between one and a subframe size;

separating the data into consecutive packets of the selected size;

repositioning the packets located in similar positions within a frame adjacent to one another;

appending the processed packets to the output file;

repeating the selecting, separating, repositioning, and appending steps for the number of selected frames; and

processing a remaining portion of the input file containing less than the selected number of frames; and

a memory for storing the output file for further processing by a compression algorithm.

27. A system for processing a data file stored in a computer memory in digital form, comprising:

a processor for;

decompressing a selected portion of a compressed data file stored in a computer memory in digital form, the compressed data file containing a predetermined packet size identifier, repositioned packets located in similar positions within a frame adjacent to one another, and separated consecutive packets of the predetermined packet size, wherein the predetermined packet size is a number of bits between one and a subframe size;

repositioning the adjacent consecutive packets of the predetermined size into its original position within the frame;

repeating the decompressing, repositioning, and repeating steps until all portions of the compressed file of the selected size are decompressed; and

decompressing a portion of the compressed data file of less than the selected size; and

a memory for storing the decompressed repositioned frames in an output file.

28. A computer-readable medium comprising computer executable instructions thereon for:

selecting a packet size that is a number of bits between one and a subframe size within an input file containing data stored in frames and subframes format, wherein the data file is stored in a computer memory in digital form;

separating the data into consecutive packets of the selected size;

repositioning the packets located in similar positions within a frame adjacent to one another; and

storing the packets in an output file for further processing by a compression algorithm.

29. A computer-readable medium comprising computer executable instructions thereon for:

decompressing a compressed data file stored in a computer memory in digital form, the compressed data file containing a predetermined packet size identifier, repositioned packets located in similar positions within a frame adjacent to one another, and separated consecutive packets of the predetermined packet size, wherein the predetermined packet size is a number of bits between one and a subframe size;

repositioning the adjacent consecutive packets of the predetermined size into its original position within the frame; and

storing the decompressed repositioned frames in an output file.

30. A computer-readable medium comprising computer executable instructions thereon for:

selecting a number of frames to be processed within an input file containing data stored in frames and subframes format, wherein the data file is stored in a computer memory in digital form, and wherein the number of frames is selected according to an available amount of memory in the computer;

creating an output file to store the processed data;

selecting a packet size that is a number of bits between one and a subframe size;

separating the data into consecutive packets of the selected size;

repositioning the packets located in similar positions within a frame adjacent to one another;

appending the processed packets to the output file;

repeating the selecting, separating, repositioning, and appending steps for the number of selected frames;

processing a remaining portion of the input file containing less than the selected number of frames; and

storing the output file for further processing by a compression algorithm.

31. A computer-readable medium comprising computer executable instructions thereon for:

decompressing a selected portion of a compressed data file stored in a computer memory in digital form, the compressed data file containing a predetermined packet size identifier, repositioned packets located in similar positions within a frame adjacent to one another, and separated consecutive packets of the predetermined packet size, wherein the predetermined packet size is a number of bits between one and a subframe size;

repositioning the adjacent consecutive packets of the predetermined size into its original position within the frame;

repeating the decompressing and repositioning steps until all portions of the compressed file of the selected size are decompressed;

decompressing a portion of the compressed data file of less than the selected size; and

storing the decompressed repositioned frames in an output file.

32. A system for processing a data file stored in a computer memory in digital form, comprising:

means for selecting a packet size that is a number of bits between one and a subframe size within an input file containing data stored in frames and subframes format, wherein the data file is stored in a computer memory in digital form;

separating the data into consecutive packets of the selected size; and

repositioning the packets located in similar positions within a frame adjacent to one another; and

means for storing the packets in an output file.

33. A system for processing a data file stored in a computer memory in digital form, comprising:

means for decompressing compressed data file stored in a computer memory in digital form, the compressed data file containing a predetermined packet size identifier, repositioned packets located in similar positions within a frame adjacent to one another, and separated consecutive packets of the predetermined packet size, wherein the predetermined packet size is a number of bits between one and a subframe size;

repositioning the adjacent consecutive packets of the predetermined size into its original position within the frame; and

means for storing the decompressed repositioned frames in an output file.