Wireless Digital Audio Music System
First Claim
1. A mobile wireless digital audio receiver, configured to receive a unique user code and a original audio signal representation in the form of packets, said unique user code configured to spread the spectrum of said signal and further configured for independent communication operation, the wireless digital audio receiver further configured to be directly communicable with a mobile digital audio transmitter, said mobile wireless digital audio receiver comprising:
- a direct conversion module configured to capture packets and a correct bit sequence within the packets aided by lowering signal detection error through reduced intersymbol interference coding of said audio representation signal respective to said mobile wireless digital audio receiver and said mobile digital audio transmitter, said packets embedded in the received spread spectrum signal, the captured packets corresponding to the unique user code;
a decoder operative to decode reduced intersymbol interference coding of said original audio signal representation, said audio having been wirelessly transmitted and reproduced virtually free from interference from device transmitted signals operating in the wireless digital audio receiver spectrum.
2 Assignments
0 Petitions
Accused Products
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.
18 Citations
2 Claims
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1. A mobile wireless digital audio receiver, configured to receive a unique user code and a original audio signal representation in the form of packets, said unique user code configured to spread the spectrum of said signal and further configured for independent communication operation, the wireless digital audio receiver further configured to be directly communicable with a mobile digital audio transmitter, said mobile wireless digital audio receiver comprising:
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a direct conversion module configured to capture packets and a correct bit sequence within the packets aided by lowering signal detection error through reduced intersymbol interference coding of said audio representation signal respective to said mobile wireless digital audio receiver and said mobile digital audio transmitter, said packets embedded in the received spread spectrum signal, the captured packets corresponding to the unique user code; a decoder operative to decode reduced intersymbol interference coding of said original audio signal representation, said audio having been wirelessly transmitted and reproduced virtually free from interference from device transmitted signals operating in the wireless digital audio receiver spectrum.
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2. A wireless digital audio headphone for receipt of a unique user code and a digital audio representation signal in the form of a packet, said unique user code configured to spread the spectrum of said signal and further configured for independent communication operation, the wireless digital audio headphone further configured to be directly communicable with a mobile digital audio transmitter, said wireless digital audio headphone comprising:
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a direct conversion module configured to capture packets and the correct bit sequence within the packets aided by lowering signal detection error through reduced intersymbol interference coding of said audio representation signal respective to said headphone and said mobile digital audio transmitter, said packets embedded in the received spread spectrum signal, the captured packets corresponding to the unique user code; a decoder operative to decode reduced intersymbol interference coding of said original audio signal representation; a digital-to-analog converter generating an audio output of said original audio signal representation; and a module adapted to reproduce said generated audio output, said audio having been wirelessly transmitted from an audio player and reproduced virtually free from interference from device transmitted signals operating in the wireless headphone spectrum.
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Specification