PROBLEM TO BE SOLVED: To provide a viewing condition update method, update code generation system, update code generation device, viewing condition management device, content reception system, and content distribution system, for appropriately updating a viewing condition.;SOLUTION: There is provided a viewing condition update method, which is a method for updating a content signal's viewing condition in a viewing condition management device (3) for managing the viewing condition, including: a step (S21) of an update code generation system (5) receiving update information showing update content of the viewing condition and identification information on the viewing condition management device; a step (S23) of the update code generation system (5) generating an individual update code on the basis of the update information and the identification information; a step (S41) of the viewing condition management device (3) receiving the update code; and a step (S42) of the viewing condition management device (3) updating the viewing condition on the basis of the update code.;SELECTED DRAWING: Figure 12;COPYRIGHT: (C)2016,JPO&INPIT
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