Optical recording apparatus

An apparatus for recording additional information with a record signal on a recording medium, the apparatus comprising:

• receiving means for receiving the record signal;
• first generating means for generating first additional information;
• recording means for recording the first additional information and the record signal on the recording medium;
• reproducing means for reproducing the first additional information and the record signal from the recording medium;
• first detecting means for detecting the first additional information recorded at a record end position on the basis of a reproduced record signal having been recorded with the first additional information, the reproduced record signal reproduced by the reproducing means, the detecting means thereby generating first detection data;
• selecting means for selecting between the first additional information obtained from the first generating means and the first detection data, thereby generating first selection data;
• a first memory for alternatively storing the first additional information obtained from the first generating means and the first selection data;
• control means for controlling operations of the first generating means, the recording means, the reproducing means, the first selecting means, and the first memory, the control means controlling the first generating means and the recording means to stop operation of the recording means after a first portion of the first additional information obtained from the first generating means is recorded on the recording medium, the control means further controlling the recording means and the first memory to restart operation of the recording means in such a manner that a remaining portion of the first additional information from the first memory can be recorded in succession to the first portion of the first additional information in response to the first detection data.

An apparatus for recording additional information together with record signals on a recording medium in a recording system in which the additional information and record signals are stored in frames and in which only a portion of a frame is recorded when recording is halted, the apparatus comprising:

• receiving means for receiving a record signal;
• generating means for generating additional information having a first portion and a remaining portion;
• memory means for storing at least the remaining portion of the additional information generated by the generating means;
• recording means for recording the additional information and the record signal on the recording medium in a unitary frame, the unitary frame having a first portion and a remaining portion;
• and
• control means for controlling operations of the generating means, the recording means, and the memory means, the control means controlling the generating means and the recording means to stop operation of the recording means after the first portion of a last incomplete unitary frame is recorded on the recording medium, the last incomplete unitary frame containing the first portion of the additional information obtained from the generating means, the control means further controlling the recording means and the memory means to restart operation of the recording means such that the remaining portion of the last incomplete unitary frame is recorded in succession to the first portion of the last incomplete unitary frame, the remaining portion of the last incomplete unitary frame containing the remaining portion of the additional information, the remaining portion of the additional information having been stored in memory.

A method of stopping and restarting recording on a recording medium in a recording system in which record signals and additional information are formatted and recorded together in frames, the method comprising the steps of:

• generating additional information, the additional information having a first portion and a remaining portion;
• storing at least the remaining portion of the additional information in a memory;
• stopping the recording process by recording the first portion of the additional information on a recording medium in a first portion of a stopped frame;
• restarting the recording process by recording the stored remaining portion of the additional information in a remaining portion of the stopped frame, so that a complete frame is created, the complete frame containing the first portion and the remaining portion of the stopped frame and containing the first portion and the remaining portion of the additional information.

A method of stopping and restarting recording on a recording medium in a recording system in which record signals and additional information are formatted and recorded together in frames, the method comprising the steps of:

• generating additional information, the additional information having a first portion and a remaining portion;
• stopping the recording process by recording the first portion of the additional information on a recording medium in a first portion of a stopped frame;
• and
• restarting the recording process by
• reproducing recorded signals from the recording medium;
• detecting preceding information data that is contained in a preceding frame that precedes the stopped frame;
• generating at least the remaining portion of the information data using the preceding information data;
• recording the remaining portion of the additional information in a remaining portion of the stopped frame, so that a complete frame is created, the complete frame containing the first portion and the remaining portion of the stopped frame and containing the first portion and the remaining portion of the additional information.