External apparatus, communication apparatus, and control method therefor

摘要

An external apparatus which is controlled by a communication apparatus, comprises a control unit configured to execute functions corresponding to operation information received from the communication apparatus, a changing unit configured to change the operation information that are assigned in every function, wherein the operation information is changed by the changing unit each time connection to the communication apparatus is established, and a transmission unit configured to transmit the changed operation information that are assigned in every function to the communication apparatus together with decryption information for the changed operation information that is encrypted.

主权项

1. An external apparatus which is controlled by a communication apparatus, comprising:
a controller configured to control the external apparatus; and a communication interface configured to communicate with the communication apparatus, wherein the controller functions as a transmission unit, a receiving unit, an operation executing unit and a changing unit, the transmission unit transmits, via the communication interface, operation information including a relation of each function of the external apparatus and operation identifiers, and each operation identifier is assigned in each function of the external apparatus, the receiving unit receives, via the communication interface, at least one of the operation identifiers, the operation executing a unit executes function corresponding to the operation identifier received from the communication apparatus, the changing unit changes the relation of each function of the external apparatus and operation identifiers, wherein the relation is changed by the changing unit each time connection to the communication apparatus is established via the communication interface, and wherein the transmission unit transmits the operation information changed by the changing unit via the communication interface.