Optical disk recording apparatus

• US 20020003759A1
• Filed: 06/11/2001
• Published: 01/10/2002
• Est. Priority Date: 07/10/2000
• Status: Active Grant

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Hattori, Katsuki
• Granted Patent: US 6,731,576 B2
• Time in Patent Office: Days
• US Class Current: 369/47.33
• CPC Class Codes: G11B 19/04 Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions

Abstract

To provide an optical disk recording apparatus capable of signal recording onto a disk using a laser emitted from an optical pick-up. Signals temporarily stored in the buffer RAM (10) are read, and recorded onto a disk (1). When the amount of signal data in the buffer RAM (10) decreases below a predetermined amount as signals are read therefrom while the read signals are recorded onto the disk (1), the signal recording onto the disk (1) is suspended. When the amount of signal data in the buffer RAM (10) increases to the predetermined amount, the signal recording onto the disk (1) is resumed. The number of occurrences of signal recording suspension and resumption due to the shortage of signals in the buffer RAM (10) is counted.

Claims

1. An optical disk recording apparatus for optically recording data supplied from an external apparatus, onto a disk, comprising:

a buffer memory for temporarily storing the data supplied from an external apparatus;

a control circuit for controlling reading of the data from the buffer memory to supply the data to an optical pick-up and causing the pick-up to record the data onto the disk, in which the reading of the data is suspended when an amount of data stored in the buffer memory is reduced below a first predetermined amount so as to cause the optical pick-up to suspend data recording onto the disk, and the reading of the data is resumed when the amount of data stored in the buffer memory is increased to a second predetermined amount so as to cause the optical pick-up to resume the data recording onto the disk; and

a counter for counting the number of occurrences of suspension and resumption of data recording onto the disk resulting from control of the control circuit.

2. An optical disk recording apparatus according to claim 1, further comprising an output section for outputting information concerning the number of occurrences counted by the counter, to a computer device connected to the optical disk recording apparatus.

3. An optical disk recording apparatus for optically recording data supplied from an external apparatus, onto a disk, comprising:

a buffer memory for temporarily storing the data supplied from an external apparatus;

a control circuit for controlling reading of the data from the buffer memory to supply the data to an optical pick-up and causing the pick-up to record the data onto the disk, in which the reading of the data is suspended when an amount of data stored in the buffer memory is reduced below a first predetermined amount so as to cause the optical pick-up to suspend data recording onto the disk, and the reading of the data is resumed when the amount of data stored in the buffer memory is increased to a second predetermined amount so as to cause the optical pick-up to resume the data recording onto the disk; and

a suspension notifying section for outputting a predetermined signal to a computer device connected to the optical disk recording apparatus whenever the data recording onto the disk is suspended or resumed according to under control of the control circuit.

4. An optical disk recording apparatus for optically recording data supplied from an external apparatus, onto a disk, comprising:

a buffer memory for temporarily storing the data supplied from an external apparatus;

a control circuit for controlling reading of the data from the buffer memory to supply the data to an optical pick-up and causing the pick-up to record the data onto the disk, in which the reading of the data is suspended when an amount of data stored in the buffer memory is reduced below a first predetermined amount so as to cause the optical pick-up to suspend data recording onto the disk, and the reading of the data is resumed when the amount of data stored in the buffer memory is increased to a second predetermined amount so as to cause the optical pick-up to resume the data recording onto the disk; and

a location circuit for locating a point on the disk at which the data recording onto the disk is suspended and resumed according to control of the control circuit.

5. An optical disk recording apparatus according to claim 4, further comprising an output section for outputting location information obtained from the location circuit to a computer device connected to the optical disk recording apparatus.

6. An optical disk recording apparatus according to claim 5, wherein the output section collectively outputs a group of information pieces concerning all suspensions and resumptions of the data recording onto the disk, occurred during one data recording operation, to the computer device.