Point of sale automatic announcing system with preprogrammed capacity

作者: Donald W. Curtis , Michael A. Branciforte , Terry L. Tucker

DOI:

关键词: Volume controlReal-time computingControl systemEngineeringControl signalVolume (computing)Point of sale

摘要: A multi-track tape player having at least one program or commercial message recorded on each of a plurality the tracks thereof is connected to source background music by control system which, periodically, in response signal from timing mechanism, activates successive ones player. As commences, material caused fade out until completion program, whereupon returns. separate volume for and allows be played higher than material. Further includes various special selection circuits overrides which adapt skip tracks, cancel being played, start regardless sequence means.

参考文章(9)