ENHANCED EMBEDDED ELECTRONICS FOR WIRELESS TRANSMISSION AND RECEPTION OF AUDIO IN SUBWOOFER APPLICATIONS

• US 20040162025A1
• Filed: 11/03/2003
• Published: 08/19/2004
• Est. Priority Date: 11/05/2002
• Status: Abandoned Application

• Current Assignee: Jan Princeton Plummer
• Original Assignee: Jan Princeton Plummer
• Inventors: Plummer, Jan Princeton
• Application Number:
  US10/605,881
• Publication Number:
  US 20040162025A1
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers

Abstract

The subwoofer category of audio component is the newest category for speaker systems. The idea of adding the deeper bass tones using a separate loudspeaker has been around for some time but the category only came to fruition with the promotion of the home theater. The home theater application has made no particular reference to placement of the subwoofer in the living environment but practical implementation says place it wherever it sounds best. The ambiguous acoustic conditions that exist in various locations preclude prediction or conclusions in a timely manner of the best location for placing the subwoofer in a room. If wiring was included as part of a custom installation to place a subwoofer in an environment it may be decided later that it is not the best location. It may be a requirement that an additional unit be located in a place not originally calculated or prepared for. It is only an illusion to be capable of predicting the proper location and numbers of subwoofers to be optimum for a given installation. The locations will however be within the same space occupied by the main speakers making reliable relocation a simple process with a reliable wireless system. It is for this reason that predictable reliable wireless communication of the signal directly from the source via of RF transmission would be ideal as a staple communication for the subwoofer. This application focuses on the development of transmission and reception schemes that allow low power RF transmission already approved by most governments to be reliably embedded into consumer electronic entertainment systems. Focused technology for this application would permit large-scale acceptance of this technique to be included within the host component and subwoofer. Presently there exist thousands of allocated public RF transmission channels that can'"'"'t be used reliably for any of their proposed usages. Distance from the transmitter both weakens the intended signal level and allows unwanted signals to capture control of the system receiver. Our application of electronic processing to optimize an RF transmission for very low audio frequencies while minimizing maximum transmission distance to within the same general enclosure insures extremely high reliability. The reliable wireless communication of the signal directly from the source via of RF transmission would be ideal as a staple communication for the subwoofer. Specific RF enhancement circuits are not mentioned in this application and are not the subject of any claims.

Claims

1. I claim the application of embedded RF transmission and reception electronics to be located in the source audio component and associated subwoofer component. Said electronics designed primarily to provide enhanced wireless transmission and reception for the sub-bass frequencies using low power RF. Herein called signals that can include limited data exchange.

2. I claim the wireless transmission system of claim 1 whereby the wireless transmission means for communicating the subwoofer signal is through use of airwaves and associated antenna.

3. I claim the wireless transmission system of claim 1 wherein the AC power source is used for communicating the RF signal from the audio source component to the subwoofer. The RF is multiplexed on the line in a process commonly called carrier current transmission requiring no additional antenna.

4. I claim the wireless transmission system of claim 3 wherein other inherent dedicated wiring systems of existing structures are used to communicate the signals from the source component to the subwoofer.

5. I claim the wireless transmission system of claim 1 wherein multiple sub bass channels are multiplexed on a single carrier and de-multiplexed at multiple subwoofer locations.

6. I claim the wireless transmission system of claim 1 the use of the RF signal only or multiplexed data to activate power or perform filter, level or other adjustments of the subwoofer or multiple subwoofers.

7. I claim the wireless transmission system of claim 1 whereby a direct-wired connection will cause deactivation of the wireless system with no user interface. When the direct connection is removed the wireless system activates and maintains the signal path invisibly.