ELECTRONIC AUDIO DEVICES STEREO

Brand Owner Address Description
QXPANDER QSOUND LABS, INC. Suite 400 3115 12th Street NE Calgary T2E 7J2 Canada electronic audio devices and stereo audio devices, namely, TV's VCR's, radios, stereos, speakers, personal computers and peripheral devices for the foregoing; analog circuits; integrated circuit chips; computer hardware and software for sound synthesis and/or sound enhancement of audio mixing studio systems and home entertainment systems; computer software comprised of digital signal algorithms for processing sound enhancements and distributed on machine readabe media, namely, optical disks, CD-ROMs, floppy disks, hard disks and ROM chips;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other stereo or monaural delivery systems. The invention reduces the data rate needed for the transmission of multichannel digital audio.