Abstract: A method of mixing audio channels is effective at rebalancing the audio without introducing unwanted artifacts or overly softening the discrete presentation of the original audio. This is accomplished between any two or more input channels by processing the audio channels to generate one or more “correlated” audio signals for each pair of input channels. The in-phase correlated signal representing content in both channels that is the same or very similar with little or no phase or time delay is mixed with the input channels. The present approach may also generate an out-of-phase correlated signal (same or similar signals with appreciable time or phase delay) that is typically discarded and a pair of independent signals (signals not present in the other input channel) that may be mixed with the input channels. The provision of both the in-phase correlated signal and the pair of independent signals makes the present approach well suited for the downmixing of audio channels as well.

Abstract: A multichannel audio format provides a truly discrete as well as a backward compatible mix for surround-sound, front or other discrete audio channels in cinema, home theater, or music environments. The additional discrete audio signals are mixed with the existing discrete audio channels into a predetermined format such as the 5.1 audio format. In addition these additional discrete audio channels are encoded and appended to the predetermined format as extension bits in the bitstream. The existing base of multichannel decoders can be used in combination with a mix decoder to reproduce truly discrete N.1 multichannel audio.

Abstract: An Aviation Weather Awareness and Reporting Enhancements (AWARE) system provides situational awareness by effectively filtering, analyzing and visualizing aviation weather data and specific hazard alerts in preflight, in-cockpit and controller applications. The AWARE system includes a temporal-spatial databases that filters weather data and a Bayesian network that assesses specific hazards in the filtered weather data in the context of pilot preferences, aircraft properties and airport properties. The filtered weather data and hazard alerts are then displayed on a client.

Abstract: In a motion picture subtitle system a shutter such as a mechanical dowser, LCLV, or E/O diffuser is inserted in the optical path between the supplemental projector and the motion picture screen and synchronized to the projection of the subtitles to reduce visual artifacts and enhance the cinematic presentation. A controller is arranged to receive the subtitles from a storage medium, to provide the subtitles to the supplemental projector in synchronism with the projection of the motion picture, and to alternately cause the shutter to pass the modulated light beam during an “on” state in synchronism with the motion picture so the subtitles are superimposed at desired times on desired portions of the motion picture and cause the shutter to attenuate the light beam during an “off” state.