Audio Processing Utilizing a Dedicated CPU Core and a Real Time OS

• US 20110106282A1
• Filed: 07/22/2010
• Published: 05/05/2011
• Est. Priority Date: 07/23/2009
• Status: Abandoned Application

• Current Assignee: Corevalus Systems LLC
• Original Assignee: Corevalus Systems LLC
• Inventors: Craig, Timothy P., Craig, Michael W., Anderson, Doug, Craig, Mark R., Maggart, Daniel C., Rucker, Garon
• Application Number:
  US12/841,229
• Publication Number:
  US 20110106282A1
• Time in Patent Office: Days
• US Class Current: 700/94
• CPC Class Codes: G06F 9/545 where tasks reside in different layers, e.g. user- and kernel-space

Abstract

This invention claims a novel software application that facilitates streaming and mixing audio and/or video with nearly zero latency, using a computer having Windows or Linux operating systems.

Typical computer operating systems are not structured sufficiently to transmit or receive audio and/or video data in a real time. Alternatively, Application Specific Integrated Circuits (ASICs) and Field Programmable Arrays (FPGAs} are used to transmit and receive audio and/or video data via the network. This requires extra hardware, space and cost.

The attributes of this invention are significant contributions to successful products in modern markets.

Claims

1. ) The invention of a unique software control package, which is compatible with, and applicable to, standard computer operating systems whereby streaming audio and video occur with insignificant time delay.

2. ) The invention of claim 1 whereas one or more processor cores are dedicated to said audio and, or video processing whereby:

a) utilizing a Real Time Operating System (RTOS) on said dedicated core or cores for audio and, or video processing

b) utilizing a standard operating system such as Windows or Linux, on the remaining Central Processing Unit (CPU) cores.

3. ) The invention of claim 1 whereby the RTOS is functioning on said dedicated core, or cores, while simultaneously running a standard operating system such as Windows or Linux, on said remaining CPU cores.

4. ) The invention of claim 1 whereas controlling the Network Interface Controller (NIC) directly by the RTOS to allow network packets to be processed in real time.

5. ) The invention of claim 1 whereas Controlling the Audio Module directly by the RTOS to allow short buffer lengths and time between hardware interrupts.

6. ) The invention of claim 1 whereby using a computer to mix multiple audio channels into a single stereo mix with low latency by:

a) Digitizing multiple channels of audio and transmitting digitized audio over standard IP networks, or any other network protocol.

b) Receiving the packets of digitized audio through a standard NIC, or any other networking module.

c) Dedicating one or more processor cores to audio processing.

d) Utilizing a real time operating system on the dedicated core for audio/video processing

e) Running the RTOS on the dedicated core while simultaneously running a standard operating system, such as Windows or Linux, on the remaining CPU cores.

f) Controlling the NIC directly by the RTOS to allow network packets to be processed in real time.

g) Controlling the Audio Module directly by the RTOS to allow short buffer lengths and times between hardware interrupts.

h) Providing a user interface on the non-real time OS to control the Audio and/or Video Processing on the RTOS

i) Digitizing multiple channels of audio and transmitting digitized audio over standard IP networks.

j) Receiving the packets of digitized audio through a standard NIC, or any other networking module.

k) Dedicating one or more processor cores to audio processing.

l) Utilizing a real time operating system on the dedicated core for audio/video processing

m) Running the RTOS on the dedicated core while simultaneously running a standard operating system, such as. Windows or Linux, on the remaining CPU cores.

n) Controlling the NIC directly by the RTOS to allow network packets to be processed real time.

o) Controlling the Audio Module directly by the RTOS to allow short buffer lengths and times between hardware interrupts.

p) Providing a user interface on the non-real time OS to control the Audio and/or Video Processing on the RTOS