Digital audio transcription system

• US 6,871,107 B1
• Filed: 07/01/1999
• Issued: 03/22/2005
• Est. Priority Date: 07/01/1999
• Status: Expired due to Term

• Current Assignee: FTR Labs Pty., Ltd.
• Original Assignee: Ftr Pty Ltd (Record Holdings Pty Ltd.)
• Inventors: Williams, Derrill P., Townsend, Steven L., Jones, Neil R., Fewings, Stephen J.
• Primary Examiner(s): Mei, Xu
• Application Number:
  US09/346,430
• Time in Patent Office: 2,091 Days
• Field of Search: 700/94, 704/235, 704/272, 369/25.01, 369/63, 369/32.01, 715/500.01, 715/530, 345/326, 345/704, 345/716, 345/727, 345/978
• US Class Current: 700/94
• CPC Class Codes: G11B 19/00 Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/783 Adaptations for reproducing at a rate different from the recording rate
• CPC Class Codes: H04N 5/91 Television signal processing therefor

Abstract

A digital audio transcription system includes at least one source of audio signals to be recorded and a computer for storing digital signals corresponding to the audio signals for allowing the stored digital signals to be subsequently played back. Recording sessions are defined by signaling the start and stopping of the digital signals; and the computer associates a date and time with each file segment stored during a recording session. A playback selection allows a user to select a virtual file entry from file entries corresponding to the periods of time during which the computer has stored at least one recording session, with the computer being responsive to the playback selection to identify file segments stored in memory on the desired entry date from the selected source of audio signals, which collectively represent the selected virtual file entry.

Claims

1. A digital audio transcription system, comprising in combination:

a. at least one selected source of audio signals to be recorded;

b. an analog-to-digital converter circuit for converting the audio signals to digital signals;

c. a computer including a memory for storing the digital signals provided by the analog-to-digital converter circuit and for allowing the stored digital signals to be played back;

d. record control means for signaling the computer to start recording the digital signals, and for signaling the computer to stop recording the digital signals, in order to define a recording session;

e. said computer being responsive to said record control means for storing the digital signals in said memory during each recording session, said computer creating at least one distinct file segment for storing each such recording session, said computer associating a date and time with each such distinct file segment;

f. a display coupled to said computer, said computer allowing the display to indicate virtual file entries corresponding to those periods of time on which the computer has stored at least one recording session from the selected source of audio signals;

g. playback selection means for allowing a user to select a desired virtual file entry from those virtual file entries indicated by the display; and

h. said computer being responsive to said playback selection means for identifying all file segments that were stored in memory on the desired entry date from the selected source of audio signals, and which collectively represent the selected virtual file entry.

2. The digital audio transcription system recited by claim 1 including an external storage medium coupled to said computer for archiving digital signals recorded by the memory of said computer, said computer copying at least a portion of each newly-created file segment to said external storage medium for archival purposes.

3. The digital audio transcription system recited by claim 1 wherein said computer monitors the time length of each file segment being stored during a current recording session, and wherein, during a given recording session, said computer closes a currently opened file segment and creates and opens a new file segment for storing an additional portion of a current recording session after the currently opened file segment reaches a predetermined time length, whereby recording sessions that exceed the predetermined time length create a plurality of file segments during each such recording session.

4. The digital audio transcription system recited by claim 3 including an external storage medium coupled to said computer for archiving digital signals recorded by the memory of said computer, said computer copying the contents of the current file segment to said external storage medium for archival purposes at regular intervals.

5. The digital audio transcription system recited by claim 3 including an external storage medium coupled to said computer for archiving digital signals recorded by the memory of said computer, said computer copying the contents of the current file segment to said external storage medium for archival purposes each time a recording session is stopped, as well as each time said computer closes one file segment and creates a new file segment as each file segment reaches its predetermined time length.

6. The digital audio transcription system recited by claim 1 wherein said computer also associates a location with each such distinct file segment.

7. The digital audio transcription system recited by claim 1 wherein the periods of time for the displayed virtual files are days.

8. The digital audio transcription system recited by claim 1 wherein the periods of time for the displayed virtual files are weeks.

9. The digital audio transcription system recited by claim 1 wherein said computer allows the display to depict a first graphical timeline representing the selected virtual file entry in the form of an entire period'"'"'s worth of recording sessions from the selected source of audio signals for the desired period of time.

10. The digital audio transcription system recited by claim 9 wherein the virtual file entries represent days, and wherein the first graphical timeline displays a day'"'"'s worth of recording sessions.

11. The digital audio transcription system recited by claim 9 wherein said playback selection means allows the user to select a desired starting point and a desired ending point on the first graphical timeline, and wherein said computer is responsive to the selected starting point and ending point for creating a subset virtual file, the subset virtual file including only those file segments which contain digital signals recorded during between the selected starting point and selected ending point.

12. The digital audio transcription system recited by claim 11 wherein said playback means includes means for signaling the computer to copy the subset virtual file to an archival storage medium.

13. The digital audio transcription system recited by claim 1 wherein said computer creates a unique file segment name for each file segment stored in the memory, and wherein each such file segment name includes the start time at which the digital signals recorded by such file segment were first recorded.

14. The digital audio transcription system recited by claim 13 wherein the unique file segment name for each file segment created by said computer and stored in the memory also includes the date on which such recording was made.

15. The digital audio transcription system recited by claim 14 wherein the unique file segment name for each file segment created by said computer, and stored in the memory also includes location information indicating the location at which such recording was made.

16. The digital audio transcription system recited by claim 13 wherein the unique file segment name for each file segment created by said computer and stored in the memory also includes location information indicating the location at which such recording was made.

17. A digital audio transcription system, comprising in combination:

a. at least one selected source of audio signals to be recorded;

b. an analog-to-digital converter circuit for converting the audio signals to digital signals;

c. a computer including a memory for storing the digital signals provided by the analog-to-digital converter circuit and for allowing the stored digital signals to be played back;

d. record control means for signaling the computer to start recording the digital signals, and for signaling the computer to stop recording the digital signals, in order to define a recording session;

e. said computer being responsive to said record control means for storing the digital signals in said memory during each recording session, said computer creating at least one distinct file segment for storing each such recording session, said computer associating a date and time with each such distinct file segment;

f. a display coupled to said computer, said computer allowing the display to indicate virtual file entries corresponding to those periods of time on which the computer has stored at least one recording session from the selected source of audio signals;

g. playback selection means for allowing a user to select a desired virtual file entry from those virtual file entries indicated by the display, wherein said computer allows the display to depict a first graphical timeline representing the selected virtual file entry in the form of an entire period'"'"'s worth of recording sessions from the selected source of audio signals for the desired period of time, and wherein the first graphical timeline includes indicia designating each point in time when recording was stopped and restarted; and

h. said computer being responsive to said playback selection means for identifying all file segments that were stored in memory on the desired entry date from the selected source of audio signals, and which collectively represent the selected virtual file entry.

18. The digital audio transcription system recited by claim 17 wherein said computer allows the display to depict a second graphical timeline representing a selected range within the selected virtual file entry in the form of a subset of the digital audio signals recorded during the selected period of time, the selected range having a starting point and a stopping point.

19. The digital audio transcription system recited by claim 18 wherein a marker is depicted on the second graphical timeline indicating the location within the selected range at which playback of digital audio signals is currently taking place.

20. The digital audio transcription system recited by claim 18 wherein range indicators are superimposed upon said first graphical timeline to show the starting point and stopping point of the selected range.

21. A digital audio transcription system, comprising in combination:

a. at least one selected source of audio signals to be recorded;

b. an analog-to-digital converter circuit for converting the audio signals to digital signals;

c. a computer including a memory for storing the digital signals provided by the analog-to-digital converter circuit when the selected source of audio signals is to be recorded, said memory also allowing the stored digital signals to be accessed for playback;

d. a display coupled to said computer, said computer allowing the display to have a first screen appearance for controlling recording operations and to have a second screen appearance for controlling playback operations, the second screen appearance differing from the first screen appearance;

e. display control means for toggling the display between the first screen appearance and the second screen appearance, depending upon whether a user desires to control recording operations or playback operations;

f. record control means operative when said display has the first screen appearance for signaling the computer to start and stop the recording of digital signals in said memory;

g. playback control means operative when said display has the second screen appearance for signaling the computer to access stored digital signals for either playback or copying.

22. The digital audio transcription system recited by claim 21 wherein the first screen appearance includes a recording panel, wherein the second screen appearance includes a playback panel, and wherein the toggling of the display between the first screen appearance and the second screen appearance makes the recording panel more prominent than the playback panel, or vice versa.

23. The digital audio transcription system recited by claim 21 wherein the first screen appearance includes a recording panel, wherein the second screen appearance includes a playback panel, and wherein the toggling of the display between the first screen appearance and the second screen appearance causes one, but not both, of the recording and playback panels to be displayed.

24. The digital audio transcription system recited by claim 21 wherein said computer accesses from said memory stored digital signals shortly after they are stored in said memory during recording operations, and wherein said system further includes:

a. a digital-to-audio converter circuit for converting the accessed digital signals to electronic audio signals; and

b. a sound generator coupled to the digital-to-audio converter circuit for transforming the converted electronic audio signals into audible sounds for allowing a user to monitor the signals being stored in the memory of said computer in order to be confident that such digital signals are being stored reliably.

25. The digital audio transcription system recited by claim 21 wherein said computer continues to store the digital signals provided by the analog-to-digital converter circuit into said memory when the selected source of audio signals is to be recorded even when said display control means toggles the display to the second screen appearance for controlling playback operations.

26. A digital audio transcription system, comprising in combination:

a. at least one selected source of audio signals to be recorded;

b. an analog-to-digital converter circuit for converting the audio signals to digital signals;

c. a computer including a memory for selectively storing the digital signals provided by the analog-to-digital converter circuit;

d. record control means for signaling the computer to start recording the digital signals, and for signaling the computer to stop recording the digital signals, in order to define a recording session;

e. said computer being responsive to said record control means for storing the digital signals in said memory during each recording session, said computer creating at least one distinct file segment for storing each such recording session; and

f. an external storage medium coupled to said computer for archiving digital signals recorded by the memory of said computer, said computer copying at least portions of a current file segment to said external storage medium for archival purposes at regular intervals.

27. The digital audio transcription system recited by claim 26 wherein said computer copies at least portions of a current file segment to said external storage medium for archival purposes each time recording is stopped.

28. The digital audio transcription system recited by claim 26 wherein said computer monitors the time length of each file segment being stored during a current recording session, said computer opening a new file segment after the currently opened file segment reaches a predetermined time length and redirecting new digital audio signals to the newly opened file segment for storing an additional portion of a current recording session, and wherein said computer copies at least portions of a current file segment to said external storage medium for archival purposes each time a recording session is stopped, as well as each time said computer creates a new file segment as each file segment reaches its predetermined time length.

29. The digital audio transcription system recited by claim 26 wherein said computer creates a unique file segment name for each file segment copied to said external storage medium, and wherein each such file segment name includes the date of recording and the start time at which the digital signals recorded by such file segment were first recorded.

30. A digital audio transcription system, comprising in combination:

a. at least one selected source of audio signals to be recorded;

b. an analog-to-digital converter circuit for converting the audio signals to digital signals;

c. a computer including a memory for selectively storing the digital signals provided by the analog-to-digital converter circuit;

d. record control means for signaling the computer to start recording the digital signals, and for signaling the computer to stop recording the digital signals, in order to define a recording session;

e. said computer being responsive to said record control means for storing the digital signals in said memory during each recording session, said computer creating at least one distinct file segment for storing each such recording session;

f. said computer monitoring the time length of each file segment being stored during a current recording session, said computer opening a new file segment for storing an additional portion of a current recording session after the currently opened file segment reaches a predetermined time length, whereby recording sessions that exceed the predetermined time length create a plurality of file segments during each such recording session; and

g. said computer creating a unique file segment name for each file segment stored in said memory, each such file segment name including the date of recording and the start time at which the digital signals recorded by such file segment were first recorded.

31. The digital audio transcription system recited by claim 30 wherein the unique file segment name for each file segment created by said computer and stored in the memory also includes location information indicating the location at which such recording was made.

32. A digital audio playback system for listening to previously recorded digital audio files, such digital audio files each being comprised of file segments, each of such file segments having a date and time associated therewith, said digital audio playback system comprising in combination:

a. a storage device containing prerecorded digital audio files;

b. a computer for accessing said prerecorded digital audio files;

c. a digital-to-analog converter circuit coupled to said computer for receiving digital audio signals accessed by said computer for converting the digital audio signals to electronic audio signals;

d. a sound generator coupled to said digital-to-analog converter circuit for reproducing audible signals based upon the converted electronic audio signals;

f. a display coupled to said computer for allowing a user to display digital audio file entries corresponding to those periods of time during which at least one recording session was recorded;

g. playback selection means for allowing a user to select a desired digital audio file entry from those file entries indicated by the display; and

h. said computer being responsive to said playback selection means for identifying all file segments that were stored on the selected entry date, and which collectively represent the selected virtual file entry, wherein said computer allows the display to depict a first graphical timeline representing the selected virtual file entry in the form of an entire period'"'"'s worth of recording sessions from the selected source of audio signals for the desired period of time.

33. The digital audio transcription system recited by claim 32 wherein the virtual file entries represent days, and wherein the first graphical timeline displays a day'"'"'s worth of recording sessions.

34. The digital audio transcription system recited by claim 32 wherein the first graphical timeline includes indicia designating each point in time when recording was stopped and restarted.

35. The digital audio transcription system recited by claim 32 wherein said computer allows the display to depict a second graphical timeline representing a selected range within the selected virtual file entry in the form of a subset of the digital audio signals recorded during the selected period of time, the selected range having a starting point and a stopping point.

36. The digital audio transcription system recited by claim 35 wherein a marker is depicted on the second graphical timeline indicating the location within the selected range at which playback of digital audio signals is currently taking place.

37. The digital audio transcription system recited by claim 32 wherein range indicators are superimposed upon said first graphical timeline to show the starting point and stopping point of the selected range.

38. The digital audio transcription system recited by claim 32 wherein said playback selection means allows the user to select a desired starting point and a desired ending point on the first graphical timeline, and wherein said computer is responsive to the selected starting point and ending point for creating a subset virtual file, the subset virtual file including only those file segments which contain digital signals recorded during between the selected starting point and selected ending point.