Methods of recording voice signals in a mobile set

• US 7,697,921 B2
• Filed: 10/20/2006
• Issued: 04/13/2010
• Est. Priority Date: 12/22/2000
• Status: Expired due to Fees

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Xie, Fei
• Primary Examiner(s): Pan; Yuwen
• Application Number:
  US11/551,333
• Publication Number:
  US 20070049327A1
• Time in Patent Office: 1,271 Days
• Field of Search: 445/13, 445/563, 379/88.01
• 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 cellular phone, comprising:

a memory;

a processor operatively coupled to the memory,

wherein the processor receives a first set of downlink signals from a first participant and a second set of downlink signals from a second participant, the first participant and the second participant participating in a video conference call,

wherein the first set of downlink signals comprises first voice signals and first video signals, the first voice signals corresponding to the first video signals,

wherein the second set of downlink signals comprises second voice signals and second video signals, the second voice signals corresponding to the second video signals,

wherein the processor compares the downlink signals of the first set, the downlink signals of the second set and uplink signals that are in a particular time frame with a same time stamp,

wherein the processor assigns one of a first logic value and a second logic value to the particular time frame corresponding to at least one of the first set of downlink signals, the second set of downlink signals and the uplink signals,

wherein the processor stores the portions of the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the first logic value in the memory, and

wherein the processor drops all of the portions of the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the second logic value in the memory and does not insert a placeholder for the dropped signals.

2. The cellular phone according to claim 1, wherein the first set of downlink signals, the second set of downlink signals and the uplink signals are sequentially considered for storage in the memory according to a corresponding time frame or time stamp.

3. The cellular phone according to claim 1, wherein the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the first logic value are stored in the memory as a single data stream.

4. The cellular phone according to claim 1, wherein the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the first logic value are stored in the memory as a single electronic file.

5. The cellular phone according to claim 1, wherein the processor stores a placeholder instead of the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the second logic value.

6. The cellular phone according to claim 1, wherein the processor assigns the first logic value to the first set of downlink signals of the particular time frame if the first voice signals indicates that the first participant is speaking.

7. The cellular phone according to claim 6, wherein the processor assigns the first logic value to the first voice signals and the first video signals of the particular time frame if the first participant is speaking.

8. The cellular phone according to claim 1, wherein the processor assigns the second logic value to the first set of downlink signals of the particular time frame if the first voice signals indicates that the first participant is not speaking.

9. The cellular phone according to claim 1, wherein the processor assigns the second logic value to the first voice signals and the first video signals of the particular time frame if the first participant is not speaking.

10. The cellular phone according to claim 9, wherein the cellular phone is a Global System for Mobile Communication (GSM) phone.

11. The cellular phone according to claim 1, wherein the first set of downlink signals comprises first data signals.

12. The cellular phone according to claim 1, wherein the first set of downlink signals comprises first multimedia signals.

13. A cellular phone, comprising:

circuitry that receives a first set of downlink signals from a first participant and a second set of downlink signals from a second participant, the first participant and the second participant participating in a video conference call,

wherein the first set of downlink signals comprises first voice signals and first video signals, the first voice signals corresponding to the first video signals,

wherein the second set of downlink signals comprises second voice signals and second video signals, the second voice signals corresponding to the second video signals,

wherein the circuitry analyzes the first voice signals, the second voice signals and uplink signals that are in a particular time frame with a same time stamp,

wherein the circuitry assigns one of a first logic value and a second logic value to the first voice signals in the particular time frame with the same time stamp, wherein the circuitry assigns one of the first logic value and the second logic value to the first video signals in the particular time frame with the same time stamp depending upon which logic value is assigned to the first voice signals in the particular time frame with the same time stamp,

wherein the circuitry assigns one of the first logic value and the second logic value to the second voice signals in the particular time frame with the same time stamp, wherein the circuitry assigns one of the first logic value and the second logic value to the second video signals in the particular time frame with the same time stamp depending upon which logic value is assigned to the second voice signals in the particular time frame with the same time stamp,

wherein the circuitry stores for playback the portions of the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the first logic value, and

wherein the circuitry drops all of the portions of the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the second logic value.

14. The cellular phone according to claim 13, wherein the first set of downlink signals, the second set of downlink signals and the uplink signals are sequentially considered for storage according to a corresponding time frame or time stamp.

15. The cellular phone according to claim 13, wherein the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the first logic value are stored as a single data stream.

16. The cellular phone according to claim 13, wherein the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the first logic value are stored as a single electronic file.

17. The cellular phone according to claim 13, wherein the circuitry stores a placeholder instead of the first set of downlink signals, the second set of downlink signals and the uplink signals that are assigned the second logic value.

18. The cellular phone according to claim 13, wherein the circuitry assigns the first logic value to the first set of downlink signals of the particular frame if the first voice signals indicates that the first participant is speaking.

19. The cellular phone according to claim 18, wherein the circuitry assigns the first logic value to the first voice signals and the first video signals of the particular frame if the first participant is speaking.

20. The cellular phone according to claim 13, wherein the circuitry assigns the second logic value to the first set of downlink signals of the particular frame if the first voice signals indicates that the first participant is not speaking.

21. The cellular phone according to claim 13, wherein the circuitry assigns the second logic value to the first voice signals and the first video signals of the particular time frame if the first participant is not speaking.

22. The cellular phone according to claim 13, wherein the cellular phone comprises a Global System for Mobile Communication (GSM) phone.

23. The cellular phone according to claim 13, wherein the first set of downlink signals comprises first data signals.

24. The cellular phone according to claim 13, wherein the first set of downlink signals comprises first multimedia signals.