Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Application No. | Application Title | Issue Date |
| 20110243333 | BTSC ENCODER The disclosed BTSC encoder includes a left high pass filter means for receiving a digital left channel audio signal and for digitally high pass filtering the digital left channel audio signal and thereby generating a digital left filtered signal; a right high pass filte... | 10/06/2011 |
| 20080095381 | BTSC ENCODER The disclosed BTSC encoder includes a left high pass filter means for receiving a digital left channel audio signal and for digitally high pass filtering the digital left channel audio signal and thereby generating a digital left filtered signal; a right high pass filte... | 04/24/2008 |
| 20080019532 | System and method using the pilot frequency from a positive feedback pilot system to improve second loop convergence for a feedforward amplifier A method for controlling alignment of a control loop in an amplifier system includes generating a pilot signal and injecting the pilot signal into the amplifier system. Any uncanceled pilot signal is detected at an output of the control loop. A frequency of the generate... | 01/24/2008 |
| 20070206808 | Multichannel Spectral Mapping Audio Apparatus and Method 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 ... | 09/06/2007 |
| 20070206805 | Multichannel Spectral Mapping Audio Apparatus and Method 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 ... | 09/06/2007 |
| 20070206809 | Multichannel Spectral Mapping Audio Apparatus and Method 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 ... | 09/06/2007 |
| 20070206806 | Multichannel Spectral Mapping Audio Apparatus and Method 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 ... | 09/06/2007 |
| 20070206807 | Multichannel Spectral Mapping Audio Apparatus and Method 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 ... | 09/06/2007 |
