Wireless Digital Audio Music System

• US 20140241543A1
• Filed: 02/25/2013
• Published: 08/28/2014
• Est. Priority Date: 12/21/2001
• Status: Active Grant

• Current Assignee: One-E-Way
• Original Assignee: One-E-Way
• Inventors: Woolfork, C. Earl
• Granted Patent: US 9,282,396 B2
• Time in Patent Office: Days
• US Class Current: 381/77
• CPC Class Codes: H04B 1/7097 Interference-related aspects
• CPC Class Codes: H04H 20/61 for local area broadcast, e.g. instore broadcast
• CPC Class Codes: H04M 1/6066 including a wireless connection
• CPC Class Codes: H04R 1/1083 Reduction of ambient noise active noise reduction per se G10K11/175; protective devices for the ear, e.g. providing acoustic protection A61F11/06
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 5/033 Headphones for stereophonic communication details thereof, e.g. relating to batteries, cables or control elements H04R1/10

Abstract

A wireless digital audio system includes a portable audio source with a digital audio transmitter operatively coupled thereto and an audio receiver operatively coupled to a headphone set. The audio receiver is configured for digital wireless communication with the audio transmitter. The digital audio receiver utilizes fuzzy logic to optimize digital signal processing. Each of the digital audio transmitter and receiver is configured for code division multiple access (CDMA) communication. The wireless digital audio system allows private audio enjoyment without interference from other users of independent wireless digital transmitters and receivers sharing the same space.

Claims

1. A method for coded wireless digital music audio transmission and reception between a mobile digital music audio transmitter and mobile digital music audio receiver comprising the steps of:

operatively coupling a digital audio transmitter to a music audio source and configuring said digital audio transmitter to transmit a unique user code and an original music audio signal representation in the form of packets, wherein said digital audio transmitter coupled to said music audio source, and configured to be directly communicable with a mobile digital audio receiver, is capable of being moved in any direction during operation, said wireless digital music audio transmitter comprising;

encoding operative to encode said original music audio signal representation to reduce intersymbol interference to aid in lowering signal detection error of said music audio representation signal respective to said mobile digital audio receiver and said mobile digital audio transmitter coupled to said music audio source;

a digital modulator module configured for independent code division multiple access (CDMA) communication operation, said music audio having been wirelessly transmitted and reproduced virtually free from interference from other device transmitted signals.

2. A method for coded wireless digital music audio transmission and reception between a mobile digital music audio transmitter and mobile digital music audio receiver comprising the steps of:

operatively coupling a digital audio transmitter to a music audio source and configuring said digital audio transmitter to transmit a unique user code and an original music audio signal representation in the form of packets, wherein said digital audio transmitter coupled to said music audio source, and configured to be directly communicable with a mobile digital audio receiver, is capable of being moved in any direction during operation, said unique user code configured to spread the spectrum of said audio signal and further configured for independent communication operation, said wireless digital music audio transmitter comprising;

encoding operative to encode said original music audio signal representation to reduce intersymbol interference to aid in lowering signal detection error of said music audio representation signal respective to said mobile digital audio receiver and said mobile digital audio transmitter coupled to said music audio source, said music audio having been wirelessly transmitted and reproduced virtually free from interference from other device transmitted signals.