Patent ID: 8866584
Filing Date: 2014-10-21
Classification: G06F,G06K,H04L

Abstract:
1. A control device that controls at least one function, comprising: a count unit that counts a number of reception signals received from an external device existing outside the control device; an authentication unit that identifies the external device as an authenticated device or an unauthenticated device by using pre-stored information for authentication and information extracted from the reception signal; a control condition retention unit that retains a condition that is set based on a number of authenticated devices and a number of unauthenticated devices, and a control content for controlling the at least one function according to the condition in such a manner that the condition and the control content are associated with each other; and a function control unit that specifies the control content and controls the at least one function based on a counting result by the count unit, and wherein the count unit comprises: an identification unit that extracts identification information from the reception signals; an identification information retention unit that receives the identification information from the identification unit, retains the identification information and time information at which the identification information is received, and deletes identification information for which a predetermined set time has elapsed; a counter that refers to the identification information retention unit at arbitrary time intervals and counts a number of retained identification information pieces; and a decision unit that is notified of the number of identification information pieces, and determines a stop of communication according to the number of identification information pieces and notifies the function control unit of the stop of communication, wherein the counter comprises: an authenticated device count unit that counts a number of authenticated devices identified by the authentication unit and retains the counted number; and an unauthenticated device count unit that counts a number of unauthenticated devices identified by the authentication unit and retains the counted number, and wherein the function control unit specifies the control content by using the counting result by the counting unit, the counting result by the counting unit including at least one of a decision result notified from the decision unit, the number of authenticate devices retained by the authenticated device count unit, and the number of unauthenticated devices retained by the unauthenticated device count unit, and thereby controls the at least one function.