Visual/audio system for advertising
作者： Brian Lindsay , Duncan Lindsay
DOI:
关键词:
摘要: A video/audio system for delivering video and audio information, such as news advertisements, entertainment to patrons customers of a petroleum station having LED visual display adjacent speakers. The is controlled by light sensor vary the brightness screen on existing conditions, at night, bright sunlight critical conditions between night sunlight. An microphone detects ambient sound levels site control an amplifier maintain output predetermined level above noise. optimally arranged seen majority gasoline pumps.
google.nl 参考文章(19)
Korda Paul, Automatic contrast and brilliance control system for television receivers ,(1961)
Jack S. Fuhrer, Plural operating mode ambient light responsive television picture control ,(1982)
Andrew J. Mustapick, Automated merchandising system ,(1976)
Donald F. Boyd, Environmental housing for supporting video monitor outdoors ,(1990)
Douglas W. Constable, Ambient light contrast and color control circuit ,(1976)
E Mierzwinski, Ambient light responsive control of brightness, contrast and color saturation ,(1972)
Hans B. Atchley, Video display control ,(1994)
Ervin M. Smith, Fuel dispenser with a human detection and recognition system ,(2002)
Jeremy Ottenstein, Arrangement for automatically controlling brightness of cockpit displays ,(1992)
Frank L. Lane, Jack Duncan, Walter A. Patrick, David N. Grocer, Richard K. Marlette, Nathaniel C. Harrison, Pump top advertisement distribution and display system with performance and sales information feedback ,(1994)