作者: Niels Harnum , Stan Cox , George Tate
DOI:
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摘要: A device and method for controlling television usage by children or other users. The owner (e.g. parent) of the establishes user access codes authorizing multiple users bestows a time allowance to each control viewing any several video signals (i.e. television, VCR, entertainment systems). Each who has been given an allotted may have replenished periodically, i.e. weekly. user's coded is decremented amount actual used. An activating means controls switches selected signal, upon matching entered code against code, determines whether will be blocked unblocked. Any unmatched signal off-state device's apparatus.