Recording/reading apparatus, method of generating tag list for recording/reading apparatus, and control unit for recording/reading apparatus

A method of controlling a user terminal configured to a control device,

• wherein the device comprises a first circuitry configured to provide a response signal along with a second absolute time point when the device performs an operation in response to an operation instructing signal received via a network;
• a second circuitry configured to store time difference information representing a difference between a first absolute time point and the second absolute time point;
• and a third circuitry configured to correct a current relative time point of content that is being processed, by the time difference information to obtain time information for a tag using the corrected current relative time point, the method comprising:
• transmitting the operation instructing signal to the device;
• storing the first absolute time point when the operation instructing signal is transmitted;
• generating the time difference information by calculating a time difference between the first absolute time point and the second absolute time point;
• and
• transmitting the time difference information to the device,
• wherein the first or second absolute time point depends on a time point detected in common by the device and the user terminal.

A device to be controlled by a user terminal that is configured to generate an operation instructing signal at a first absolute time point, the device comprising:

• a first circuitry configured to provide a response signal and a second absolute time point when the device performs an operation in response to the operation instructing signal received via a network;
• a second circuitry configured to store time difference information representing a difference between the first absolute time point and the second absolute time point;
• and
• a third circuitry configured to correct a current relative time point of content that is being processed, by the time difference information to obtain time information for a tag using the corrected current relative time point,
• wherein the first or second absolute time point depends on a time point detected in common by the device and the user terminal.

A method of controlling a device to be controlled by a user terminal that is configured to generate an operation instructing signal at a first absolute time point, the device comprising a first circuitry configured to provide a response signal and a second absolute time point when the device performs an operation in response to the operation instructing signal received via a network, a second circuitry configured to store time difference information representing a difference between the first absolute time point and the second absolute time point, and a third circuitry configured to correct a current relative time point of content that is being processed, by the time difference information to obtain time information for a tag using the corrected current relative time point, the control method comprising:

• returning the response signal and the second absolute time point when the device performs an operation in response to the operation instructing signal received via the network;
• storing the time difference information transmitted from the user terminal, wherein the time difference signal represents a difference between the first absolute time point and the second absolute time point;
• and
• correcting the current relative time point by the time difference signal to obtain the time information for the tag using the corrected current relative time point,
• wherein the first or second absolute time point depends on a time point detected in common by the device and the user terminal.