04139149 is referenced by 97 patents and cites 4 patents.

A retail store having a computer, point-of-sale terminals, and product code readers at the point-of-sale terminals, includes an electronic price display system. The display system has plural display units, with one display unit at each of the locations in the store where items are held for sale. The computer controls both the prices which are displayed by the display units and the prices which are charged to customers at the point-of-sale terminals. The display units are connected in electrical series by a data transmission line, and price information is transmitted by the computer over the transmission line to the display system in the same order as the display units are connected.

Title
Display system
Application Number
5/829556
Publication Number
4139149
Application Date
August 31, 1977
Publication Date
February 13, 1979
Inventor
Masami S Kaino
Del Mar
CA, US
Philip C Crepeau
San Diego
CA, US
Agent
Stephen F Jewett
Edward Dugas
J T Cavender
Assignee
NCR Corporation
OH, US
IPC
B65G 47/00
G09F 3/20
G06K 15/00
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