Method and apparatus for recording and retrieval of audio conferences

• US 5,668,863 A
• Filed: 04/26/1996
• Issued: 09/16/1997
• Est. Priority Date: 07/31/1995
• Status: Expired due to Term

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Latitude Communications, Inc. (Cisco Systems, Inc.)
• Inventors: Taylor, Stuart A., Bieselin, David N., Eaton, Glenn A., Tracy, Edward D., Wang, Emil C. W., McFadden, Joseph A.
• Primary Examiner(s): Zele, Krista M.
• Assistant Examiner(s): Wolinsky, Scott
• Application Number:
  US08/638,196
• Time in Patent Office: 508 Days
• Field of Search: 379/202, 379/201, 379/67, 379/88, 379/89, 379/207, 379/112, 379/203, 379/204, 379/205, 370/260, 370/261, 370/262
• US Class Current: 379/202.01
• CPC Class Codes: H04M 3/42221 Conversation recording systems at the subscriber's set H04M1/656
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15

Abstract

An innovative recording and playback system to record and play back audio conferences. In one embodiment, each conference participant'"'"'s spoken name is recorded and stored in audio files. In addition, the combined voice signals generated by conference participants during the conference are stored in a conference data file. Data links are provided between the spoken names of the conference participants and the combined voice signals recorded during the conference. During playback of the recorded conference, a user can enter a command to an input device to playback the spoken names of the conference participants. In other embodiments, other conference information is stored in audio files and linked to the conference data file such that the information can be retrieved and audibly played back to the user.

Claims

1. A method for recording an audio conference comprising the steps of:

prompting each conference participant to record a spoken name identifying the conference participant;

recording and storing in first audio data files in memory the spoken names of the conference participants, each first audio data file containing the spoken name of one conference participant;

capturing combined voice signals generated by conference participants during the conference and storing the captured combined voice signals in a conference data file in memory; and

providing first data links between the first audio data files comprising the spoken name of each conference participant and the conference data file.

2. The method as set forth in claim 1, further comprising the step of playing back the recorded conference, said step comprising the steps of:

reading the conference data file from memory and generating audio for a user listening to the recording, said audio comprising the combined voice signals generated by the conference participants; and

if a user enters a command to an input device, reading each first audio data file linked via the first data link to the conference data file and generating audio comprising the spoken names of each conference participant.

3. The method as set forth in claim 1, further comprising the step of providing a second data link between a second audio data file stored in memory with the conference data file, said second audio data file comprising a spoken name of the conference.

4. The method as set forth in claim 3, further comprising the step of playing back the recorded conference, said step comprising the steps of:

reading the conference data file from memory and generating audio for a user listening to the recording, said audio comprising the combined voice signals generated by the conference participants; and

if a user enters a command to an input device, reading the second audio data file identified via the second data link and generating audio comprising the spoken name of the conference.

5. The method as set forth in claim 3, further comprising the steps of:

providing a user a listing of recorded conferences by reading a plurality of second audio data files, each second audio data file comprising the spoken name of a recorded conference, and generating an audio listing comprising the spoken names of recorded conferences;

said user selecting a recorded conference from the audio listing of recorded conferences;

reading the conference data file from memory and generating audio for a user listening to the recording, said audio comprising the combined voice signals generated by the conference participants.

6. The method as set forth in claim 5, wherein the step of the user selecting a conference comprises the step of the user entering at least one DTMF tone indicative of the selected conference using a user telephone keypad, said step of generating audio comprises generating audio through a handset of the user telephone.

7. The method as set forth in claim 5, wherein the step of providing the user a listing of recorded conferences comprises the step of providing a display of conference names on a user display device.

8. The method as set forth in claim 7, wherein the step of the user selecting a conference comprises the step of the user selecting a conference by entering at least one DTMF tone indicative of the selected conference using a user telephone keypad, said step of generating audio comprises generating audio through a handset of the user telephone.

9. The method as set forth in claim 7, wherein the step of the user selecting a conference comprises the step of the user selecting a conference by inputting a conference selection using an input device coupled to the user display device, said step of generating audio comprises generating audio through a handset of a user telephone.

10. The method as set forth in claim 7, wherein the user display device is a computer, the step of the user selecting a conference comprises the step of the user selecting a conference by inputting a conference selection using an input device of the computer, said step of generating audio comprises the steps of transmitting the audio data files to the computer and said computer generating the corresponding audio for the user.

11. The method as set forth in claim 3, further comprising the step of reading the second audio data file and generating audio comprising the spoken name of the conference to each conference participant when the conference participant enters the conference.

12. The method as set forth in claim 3, further comprising the step of reading the second audio data file and generating audio comprising the spoken name of the conference to each conference participant prior to the conference participant entering the conference.

13. The method as set forth in claim 1, further comprising the step of providing a second data link between a second audio data file and the conference data file, said second audio data file comprising a spoken agenda of the conference.

14. The method as set forth in claim 13, further comprising the step of play back of the recorded conference, said step comprising the steps of:

reading the conference data file from memory and generating audio for a user listening to the recording, said audio comprising the combined voice signals generated by the conference participants; and

if a user enters a command to an input device, reading the second audio data file identified by the second data link and generating audio comprising the spoken agenda of the conference.

15. The method as set forth in claim 1, further comprising the steps of:

during the step of capturing combined voice signals, a conference participant entering a first command to indicate placement of a bookmark at a point in the conference data file;

upon entry of the first command, associating a marker with a location in the conference data file corresponding to the point in the conference data file;

performing a playback of the recorded conference, comprising the steps of;

reading the conference data file from memory and generating audio for a user listening to the recording, said audio comprising the combined voice signals generated by the conference participants; and

if a user enters the first command to an input device, skipping to the location in the conference data file associated with the marker, and continuing the step of reading the conference data file from memory and generating audio for the user.

16. The method as set forth in claim 15, further comprising the steps of:

upon entry of the first command, prompting the conference participant who entered the first command to enter information to identify the bookmark; and

wherein if the user enters the first command, providing the information to identify the bookmark to the user.

17. The method as set forth in claim 16, wherein the step of entering information to identify the bookmark comprises the steps of the conference participant speaking the information, capturing the voice signals of the conference participant speaking the information and storing the captured voice signal of the conference participant speaking the information in a second audio data file;

and the step of providing the information comprises the step of reading the second audio data file and generating audio comprising the conference participant speaking the information.

18. The method as set forth in claim 15, wherein a plurality of bookmarks are generated, said user skipping in a forward direction and a reverse direction between locations of bookmarks upon entry of the first command and an indication of direction.

19. The method as set forth in claim 1, wherein the step of capturing combined voice signals comprises the step of selectively capturing combined voice data signals responsive to a second command entered by a conference participant during the step of capture, said second command causing the step of capturing to be switched between an on and off state.

20. The method as set forth in claim 19, wherein the second command is entered using DTMF keys on a phone set through which the conference participant is participating in the conference.

21. The method as set forth in claim 1, further comprising the step of providing a second data link between posting information stored in memory and the conference data file, said posting information identifying users that have access to play back the recorded conference.

22. The method as set forth in claim 21, wherein a conference is recorded by a user indicating that the conference is to be recorded, and only the user who selected the conference to be recorded is included in the posting information identifying the users that have access to play back the recorded conference.

23. The method as set forth in claim 21, wherein only users who are conference participants to the recorded conference have access to play back the recorded conference.

24. The method as set forth in claim 1, further comprising the step of providing a set of second data links between second audio data files and the conference data file, the second audio data files comprising entry announcements identifying conference participants entering the conference, each of said second data links providing a pointer between a location in the conference data file corresponding to combined voice signals recorded at a time a conference participant entered the conference.

25. The method as set forth in claim 1, further comprising the step of providing a set of second data links between second audio data files and the conference data file, the second audio data files comprising departure announcements identifying conference participants departing the conference, each of said second data links providing a pointer between a location in the conference data file corresponding to combined voice signals recorded at a time a conference participant departed the conference.

26. The method as set forth in claim 1, further comprising the steps of:

a user scheduling a time for the conference;

prompting the user to speak a conference announcement;

capturing the voice signal of the user speaking the conference announcement; and

storing the captured voice signal in a second audio data file in memory;

wherein the conference announcement is played back to conference participants when each conference participant joins the conference.

27. The method as set forth in claim 26, wherein the conference announcement is selectively played back to conference participants currently joined in the conference.

28. The method as set forth in claim 1, further comprising the step of providing second data links between first audio data files and the conference data file, each of said second data links pointing to a location in the conference data file corresponding to a portion of time of the recorded combined voice signals, and first audio data files comprising the spoken name of each conference participant that spoke during the portion of time.

29. The method as set forth in claim 28, further comprising reading the conference data file from memory and generating audio for a user listening to the recording, said audio comprising the combined voice signals generated by the conference participants;

and

a user enters a first command to an input device during reading of a portion of the conference data file, reading each audio data file linked to a portion of the conference data file and generating audio comprising the spoken names of each conference participant speaking during the portion of the conference.

30. In an audio conferencing system, an apparatus comprising:

a data storage subsystem;

a computer processing system coupled to the data storage subsystem, said computer processing system configured to receive input voice signals generated by a plurality of conference participants during the conference and store the input voice signals in the data storage subsystem, said computer processing system further configured to store in the data storage subsystem and associate with the input voice signals stored in the data storage subsystem via data links an identification of conference participants of the conference recorded; and

a user telephone coupled to said computer processing system, said user telephone enabling a user to input commands by entering DTMF tones using a keypad of the telephone, said computer processing system configured such that when the user enters a command to play back the conference, the computer processing system retrieves the input voice signals from the data storage subsystem and generates audio for play back of the conference through the user telephone and if the user enters a command to retrieve an identification of conference participants, the computer processing system, using the data links, retrieves the identification of conference participants and generates audio for playback of the identification of conference participants through the user telephone.

31. In an audio conferencing system, an apparatus comprising:

a data storage subsystem;

a computer processing system coupled to the data storage subsystem, said computer processing system configured to receive input voice signals generated by a plurality of conference participants during the conference and store the input voice signals in the data storage subsystem, said computer processing system further configured to store in the data storage subsystem and associate with the input voice signals stored in the data storage subsystem via data links an identification of conference participants of the conference recorded; and

a user telephone coupled to the computer processing system, and a user computer coupled to the computer processing system, said user computer configured to enable said user to input commands using an input device of the user computer, said computer processing system configured such that when the user enters a command to play back the conference, the computer processing system retrieves the input voice signals from the data storage subsystem and generates audio for play back of the conference through the user telephone and if the user enters a command to retrieve an identification of conference participants, the user computer, using the data links, retrieves the identification of conference participants and generates audio for playback of the identification of conference participants through the user telephone.

32. In an audio conferencing system, an apparatus comprising:

a data storage subsystem;

a computer processing system coupled to the data storage subsystem, said computer processing system configured to receive input voice signals generated by a plurality of conference participants during the conference and store the input voice signals in the data storage subsystem, said computer processing system further configured to store in the data storage subsystem and associate with the input voice signals stored in the data storage subsystem via data links an identification of conference participants of the conference recorded; and

a user computer coupled to the computer processing system, said user computer enabling a user to input commands using an input device of the user computer, wherein when the user enters a command to play back the conference, the computer processing system retrieves the input voice signals from the data storage subsystem and transfers the input voice signals to the user computer, said user computer generating audio for play back of the conference.