Method for delivering different departments of a supermarket with department specific informations

摘要

1. A method for delivering to different departments of a supermarket equipped with a plurality of shopping carts department-specific informations which are digitally stored in central control equipment, subsequently transmitted on lines to the respective department and transmitted there in a wireless manner to be received and reproduced by the receiving units of the shopping carts within the respective department, wherein each of said department-specific informations is digitally processed before being stored in the central control equipment, subsequently time-compressed in a certain cycle and, after having been transmitted on lines to the respective department, serially transmitted in a wireless manner ; and wherein each information transmitted in compressed form and having been received by the receiving units of the shopping carts within the respective department, is temporarily stored and, after expansion to the original information length, finally reproduced in analogous form in the audio-frequency range.