Abstract: A method for transmitting specific data whose data format is unknown at a relay from a first blockchain network to a second blockchain network via the relay is provided. The method includes steps of: the relay (a) in response to detecting that a blockchain communication message for transmitting the specific data from the first blockchain network following a first data format to the second blockchain network following a second data format is generated, generating a relay message including the blockchain communication message and verification information; and (b) transmitting the relay message to the second blockchain network, thereby instructing the second blockchain network to (i) verify the relay message by using the verification information included in the relay message and (ii) convert the specific data included in the relay message into the second data format to generate converted specific data and then transmit the converted specific data to a receiving party.

Abstract: Disclosed is an apparatus and method for sensing illumination by using an image sensor, in which a camera image sensor embedded in a wireless terminal is used to sense a peripheral illumination without using a conventional photo sensor. The apparatus includes: an image sensor for scanning an image with reference to each gain of Red, Green and Blue (RGB) to generate image data; a control unit for generating a light-emitting control signal or a light-emitting on/off signal with reference to the image data and the gain; and a light-emitting unit for adjusting an illumination of an internal light-emitting device or turning on/off the light-emitting device according to the light-emitting control signal or the light-emitting on/off signal.