An improved device for timely medication administration that attaches to any original container cap and that measures and displays elapsed time in response to opening or closing of said original container cap is disclosed. The lock release operation piece returns the lock claw to the lock state with the force when the lock release operation is canceled. The actuator uses the data generated by the task manager to actuate the drive unit. % of the branched alcohol alkoxylate and at least 2. Only then, the interrogator transmits a radio wave strong enough to permit the responder to acquire sufficient electric power. The method for generating a bitstream of an audio signal using an encoded audio signal and encoding information includes generating a flag indicating whether the encoded audio signal is a multichannel audio signal, generating a bitstream header including the generated flag, and generating the bitstream using the generated bitstream header and the encoded audio signal.