Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamic power sharing in a multi-channel sound system

a multi-channel sound and power sharing technology, applied in the direction of amplification control, limiting amplitude, electrical equipment, etc., can solve the problems of sound distorted and limited level, one or more channels can be driven into overload, and conventional systems do not provide a solution to this problem

Inactive Publication Date: 2008-06-12
LRAD CORPORATION
View PDF14 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The patent describes a system for processing audio signals in a multi-channel audio system. The system includes multiple channels, each with an audio signal. A processor is used to mix a portion of the audio signal from one channel into another channel based on the signal level in the first channel. This results in a more complex and interesting audio signal that can be used in a variety of applications."

Problems solved by technology

One disadvantage with such a system is that any one or more of the channels can be driven into overload by high intensity signals building in one channel or high-level directional signals as they move from channel to channel.
When the signal passes the maximum signal level threshold of the speaker or amplifier then the sound can become distorted and limited in level.
Conventional systems do not provide a solution to this problem, with the exception of increasing the size and power capability of the system to be able to have greater output without overload.
This can be very costly and also may require systems of larger than practical size for placement into a domestic environment.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic power sharing in a multi-channel sound system
  • Dynamic power sharing in a multi-channel sound system
  • Dynamic power sharing in a multi-channel sound system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015]For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the exemplary embodiments illustrated in the drawings, and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the invention as illustrated herein, which would occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention.

[0016]FIG. 1 illustrates a schematic of one embodiment of a circuit for dynamic power sharing in a multi-channel sound system in accordance with the present invention. A multi-channel sound system includes 3 or more channels, such that for any one channel there are two corresponding channels with directional vectors and sound outpu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A signal processing system for use in a multi-channel audio system. The signal processing system includes a first channel having a first audio signal. A second channel is included that has at least a second audio signal. A processor is included that is responsive to a signal level threshold in the first channel, such that at the threshold and above the threshold, a portion of the first channel audio signal is mixed into the at least a second audio channel.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS AND CLAIM OF PRIORITY[0001]This is a continuation of U.S. patent application Ser. No. 10 / 332,660 filed on Jan. 10, 2003, which is the National Stage of International Application No. PCT / US01 / 21755 filed on Jul. 11, 2001 which claims priority to U.S. provisional application Ser. No. 60 / 217,266 filed on Jul. 11, 2000, each of which are herein incorporated by reference in their entirety.TECHNICAL FIELD[0002]The present invention relates generally to multiple channel sound systems. More particularly, the present invention relates to power distribution in multiple channel sound systems.BACKGROUND ART[0003]In today's home entertainment industry, high fidelity, spatially accurate sound is very important and surround sound systems are a predominant delivery system for sound reproduction. Surround sound systems typically have 5 or more channels and at least one woofer or sub-woofer channel. A surround sound system generally uses the front center channe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): H04R29/00H04S3/00
CPCH04S3/00H04S2400/13H04S3/002
Inventor CROFT, JAMES J.
Owner LRAD CORPORATION