System and method for processing audio and video data in a wireless handset

• US 7,120,162 B1
• Filed: 08/03/2000
• Issued: 10/10/2006
• Est. Priority Date: 08/03/2000
• Status: Expired due to Term

• Current Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Original Assignee: Skyworks Solutions Incorporated
• Inventors: Hsueh, Albert A., Katibian, Behnam S.
• Primary Examiner(s): Cao, Chun
• Assistant Examiner(s): Cribbs, Malcolm
• Application Number:
  US09/631,511
• Time in Patent Office: 2,259 Days
• Field of Search: 370/229, 370/235, 370/431, 370/437, 370464-469, 370/474, 370473- 4, 455/3.01, 455/418, 455/422.1, 455/464, 718/100, 718/102, 718/103, 348 1401- 1402, 348584- 5, 709/100, 709102-103
• US Class Current: 370/464
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A system for processing audio and video data for a wireless handset is provided. The system includes an audio sampler receiving audio data and converting the audio data into digitally encoded audio data. The system also includes a digital imager receiving image data and converting the image data to digitally encoded image data. A processor coupled to the audio sampler and the digital imager and receives the digitally encoded audio data and the digitally encoded image data and gives processing priority to one of the digitally encoded audio data and the digitally encoded image data.

Claims

1. A system for processing audio and video data for a wireless handset comprising:

controller means for generating priority data;

a plurality of channel buffers, wherein each channel buffer represents a logically separate channel of data; and

transmission buffer means for receiving the priority data and data from one or more of the channel buffers and storing the data from the channel buffers in a buffer, where the number of channel buffers to receive data from and the amount of data to be received from each channel buffer is determined by the priority data.

2. The system of claim 1 wherein the plurality of channel buffers further comprises an audio data buffer.

3. The system of claim 1 wherein the plurality of channel buffers further comprises a video data buffer.

4. The system of claim 1 wherein the plurality of channel buffers further comprises a control data buffer.

5. The system of claim 1 wherein the controller means generates priority data based on transmission channel bandwidth.

6. The system of claim 1 wherein the controller means generates priority data based on processor capacity of a wireless handset processor.

7. The system of claim 1 her comprising:

wherein the plurality of channel buffers further comprises;

an audio data buffer;

a video data buffer; and

a control data buffer; and

wherein the controller means generates priority data based on transmission channel bandwidth and on processor capacity of a wireless handset processor that changes the amount and sequence of data from the audio data buffer, the video data buffer, and the control data buffer that is stored in the transmission buffer means.

8. The system of claim 1 wherein the controller means receives user control data and uses the user control data to generate the priority data.

9. The system of claim 7 wherein the controller means receives user control data and uses the user control data to generate the priority data that changes the amount and sequence of data from the audio data buffer, the video data buffer, and the control data buffer that is stored in the transmission buffer means.

19. The system of claim 7 further comprising priority data associated with each channel buffer, wherein audio data can have a lower priority than video data or control data.

10. A method for processing audio and video data for a wireless handset comprising:

generating priority data;

storing data in a plurality of channel buffers, where each channel buffer represents a logically separate channel of data; and

determining the number of channel buffers to receive data from based on the priority data;

determining the amount of data to be received from each channel buffer by the priority data; and

storing the data from each selected charnel buffer in a transmission buffer.

11. The method of claim 10 wherein storing data in the plurality of channel buffers further comprises storing the data in an audio data buffer.

12. The method of claim 10 wherein storing data in the plurality of channel buffers further comprises storing the data in a video data buffer.

13. The method of claim 10 wherein storing data in the plurality of channel buffers further comprises storing the data in a control data buffer.

14. The method of claim 10 wherein generating priority data comprises generating priority data based on transmission channel bandwidth.

15. The method of claim 10 wherein generating priority data comprises generating priority data based on processor capacity of a wireless handset processor.

16. A method for processing audio and video data for a wireless handset comprising:

generating priority data based on transmission channel bandwidth and on processor capacity of a wireless handset processor;

storing data in an audio data buffer;

storing data in a video data buffer;

storing data in a control data buffer;

determining a number of channel buffers to receive data from based on the priority data;

determining an amount and a sequence of data from the audio data buffer, the video data buffer, and the control data buffer that is to be stored in a transmission buffer based on the priority data; and

storing the data from each selected channel buffer in the transmission buffer.

17. The method of claim 16 further comprising:

receiving user-entered control data; and

generating the priority data from the user-entered control data.

18. The method of claim 16 further comprising:

receiving user control data; and

generating priority data that changes the amount and sequence of data from the audio data buffer, the video data buffer, and the control data buffer that is stored in the transmission buffer from the user control data.

20. The method of claim 16 wherein determining the amount and the sequence of data from the audio data buffer, the video data buffer, and the control data buffer that is to be stored in the transmission buffer based on the priority data further comprises allowing only null data from one of the audio data buffer, the video data buffer, or the control data buffer to be stored in the transmission buffer if the associated buffer is empty, priority is allocated only to the associated buffer, and data is present in the other buffers.