Integrated multimedia signal processing system using centralized processing of signals

• US 7,561,935 B2
• Filed: 03/21/2006
• Issued: 07/14/2009
• Est. Priority Date: 12/30/2004
• Status: Expired due to Fees

• Current Assignee: Mondo Systems, Inc.
• Original Assignee: Mondo Systems, Inc.
• Inventors: Chung, Chul
• Primary Examiner(s): Briney, III; Walter F
• Application Number:
  US11/384,337
• Publication Number:
  US 20060161282A1
• Time in Patent Office: 1,211 Days
• Field of Search: None
• US Class Current: 700/94
• CPC Class Codes: H04S 7/307 Frequency adjustment, e.g. tone control H04S7/301 takes precedence

Abstract

Integrated processing of multimedia signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home entertainment system components. The integrated multimedia system includes a main player that captures and processes signals digitally. The main player may adjust the audio signal to provide audio output of equal loudness across all frequencies by accounting for sensitivity of the human ear for sounds of varying frequencies. The main player can also account for perceived differences in loudness based on the angle of a listener to a speaker by detecting the position of a user and making an adjustment accordingly. The invention further provides a speaker that has embedded performance characteristics or an identifier that allows the system to provide an optimal speaker driving current for a particular system or determine how that speaker would be best implemented in the integrated system.

Claims

1. A method for controlling audio signals, comprising:

receiving audio signals;

acquiring information on sound reception from an image capture device;

separating the audio signals into a plurality of frequency ranges;

adjusting endpoints of the frequency ranges dynamically;

checking reference data for each of the frequency ranges;

adjusting the audio signal in each frequency range of the plurality of frequency ranges based on the reference data and the information on sound reception; and

synthesizing the adjusted audio signal in each frequency range of the plurality of frequency ranges for further processing to generate audio output,

wherein the information on sound reception is a position of a sound receptor in relation to a sound source, and

wherein the reference data corresponds to the sound source'"'"'s reproduction characteristics based on the position of the sound receptor in relation to the sound source.

2. The method of claim 1, wherein the reference data corresponds to a sound pressure level for each of the frequency ranges.

3. The method of claim 2, wherein the sound pressure level corresponds to an angle between the sound receptor and the sound source.

4. The method of claim 2, wherein the sound pressure level corresponds to a distance between the sound receptor and the sound source.

5. The method of claim 1, wherein the sound receptor is human being.

6. The method of claim 1, wherein the sound source is a speaker unit.