Methods of recording voice signals in a mobile set

• US 7,136,630 B2
• Filed: 12/22/2000
• Issued: 11/14/2006
• Est. Priority Date: 12/22/2000
• Status: Expired due to Fees

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Xie, Fei
• Primary Examiner(s): Anderson, Matthew D.
• Assistant Examiner(s): Pan, Yuwen
• Application Number:
  US09/747,392
• Publication Number:
  US 20030054802A1
• Time in Patent Office: 2,153 Days
• Field of Search: 455/412.1, 455/413, 455/563, 704/233, 704/210, 704/226, 704/227, 704/214, 704/215, 704/201, 379/85, 379/88.01, 379/88.07, 379/671
• US Class Current: 455/412.1
• CPC Class Codes: G10L 25/78 Detection of presence or absence of voice signals switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems H04M9/10
• CPC Class Codes: H04M 1/656 for recording conversations
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99956 File allocation

Abstract

The present invention relates to a mobile set integrating a memory efficient data storage system for the real time recording of voice conversations, data transmission and the like. The data recorder has the capacity to selectively choose the most relevant time frames of a conversation for recording, while discarding time frames that only occupy additional space in memory without holding any conversational data. The invention executes a series of logic steps on each signal including a voice activity detector step, frame comparison step, and sequential recording step. A mobile set having a modified architecture for performing the methods of the present invention is also disclosed.

Claims

1. A method in a mobile set for determining record worthy voice time frames, the method comprising:

(a) receiving a first signal in a voice activity detector;

(b) receiving a second signal in the voice activity detector;

(c) comparing the first signal to the second signal, wherein the first and second signals have the same time stamp, and selecting the signal having a high logic value for recording; and

(d) substituting the low logic value signal with a placeholder marker for recording.

2. The method of claim 1, wherein step (d) alternatively comprises:

(d) Recording the low logic value signal without performing any substitution.

3. The method of claim 1, wherein the first voice signal is a uplink signal, and the second voice signal is a downlink signal.

4. The method of claim 1, wherein the first signal or the second signal contains a plurality of signals of the same type.

5. The method of claim 1, wherein step (c) comprises selecting the signal having a higher voice data content.

6. The method of claim 1, wherein the first and second signals have the same time frame.

7. The method of claim 1, wherein step (c) comprise selecting the signal having a high logic value for recording if the signal has sufficient voice data content to at least meet a predetermined threshold.

8. The method of claim 7, wherein, if the signal does not have sufficient data content to at least meet a predetermined threshold, then the signal is not recorded.

9. The method of claim 7, wherein if the signal does not have sufficient data content to at least meet a predetermined threshold, then substituting the high logic value signal with the placeholder marker.

10. The method of claim 1, wherein the placeholder marker is recorded in a data file so that the data file is played back as a linear representation of voice data content.

11. The method of claim 1, wherein the mobile set comprises a cellular phone.

12. The method of claim 11, wherein the cellular phone sends and receives e-mail communications.

13. The method of claim 11, wherein the cellular phone sends and receives multimedia signals.

14. The method of claim 11, wherein the cellular phone comprises a personal digital assistant (PDA).

15. The method of claim 11, wherein the cellular phone provides walkie-talkie communications.

16. The method of claim 11, wherein the cellular phone provides text messaging.

17. The method of claim 11, wherein the cellular phone provides web browsing.

18. The method of claim 1, wherein the mobile set comprises a wireless communication device.

19. The method of claim 18, wherein the wireless communication device sends and receives e-mail cornmumcations.

20. The method of claim 18, wherein the wireless communication device sends and receives multimedia signals.

21. The method of claim 18, wherein the wireless communication device acts as a personal digital assistant (PDA).

22. The method of claim 18, wherein the wireless communication device provides walkie-talkie communications.

23. The method of claim 18, wherein the wireless communication device provides text messaging.

24. The method of claim 18, wherein the wireless communication device provides web browsing.

25. The method of claim 1, comprising:

displaying a plurality of recording modes.

26. The method of claim 25, comprising:

selecting a recording mode of the plurality of recording modes; and

recording according to the selected recording mode.

27. The method of claim 1, comprising:

recording the selected signal; and

playing back the recorded signal during a phone call.

28. The method of claim 1, comprising:

recording a real-time voice conversation.