Feature-dependent operating method between two connected equipments and an apparatus for controlling the operating method

A feature-dependent operating method between mutually-connected equipments through a digital interface, comprising the steps of:

• (a) requesting feature information of a connected equipment through the digital interface;
• (b) receiving the requested feature information through the digital interface and storing the received feature information;
• and
• (c) converting the format of data to be offered to the connected equipment by a requested operation based on the stored feature information, and transmitting the format-converted data.

An apparatus for controlling an operation between mutually-connected equippments equipments through a digital interface, comprising:

• a connecting means unit sending and receiving data through the digital interface;
• a storing means unit storing feature information of a connected equipment received through said connecting means;
• a data acquisition means unit obtaining video and/or audio data from a data storage medium;
• a controlling means controller controlling said data acquisition means unit to or not to obtain data from the data storage medium based on the stored feature information;
• and
• a transmitting means unit transmitting data obtained by said data acquisition means unit to the connected equipment through the digital interface.

A method for providing data between mutually-connected equippments equipments through a digital interface, comprising the steps of:

• (a) requesting feature information of a connected equipment through the digital interface;
• (b) checking whether the requested feature information is received or not;
• and
• (c) transmitting the data to be offered according to a requested operation to the connected equipment in a format pre-specified for the connected equipment if the requested feature information is not received.