Mark forming apparatus and mark forming method
AssigneesSony Dadc Corporation, Sony Corporation
InventorAkiya Saito
Life of this patent
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Abstract
Provided is a mark forming apparatus including a head unit that forms a mark on a recording medium through laser beam irradiation based on a laser driving pulse, a control signal generation unit that generates a control signal at a start timing of the laser driving pulse supplied to the head unit, a multiplier that multiples a synchronization reference signal used to synchronize with the process of forming the mark on the recording medium in the head unit to generate a multiple signal, and a laser driving pulse generation unit that generates the laser driving pulse by setting the start timing of the laser driving pulse at resolution based on the multiple signal in accordance with the control signal.
Claims6
A mark forming apparatus comprising:
- a head unit that forms a mark on a recording medium through laser beam irradiation based on a laser driving pulse;
- a control signal generation unit that generates a control signal at a start timing of the laser driving pulse supplied to the head unit;
- a multiplier that multiples a synchronization reference signal used to synchronize with the process of forming the mark on the recording medium in the head unit to generate a multiple signal;
- and
- a laser driving pulse generation unit that generates the laser driving pulse by setting the start timing of the laser driving pulse at resolution based on the multiple signal in accordance with the control signal.
A mark forming method comprising:
- generating a control signal at a start timing of a laser driving pulse;
- multiplying a synchronization reference signal synchronized with a process of forming a mark on a recording medium to generate a multiple signal;
- generating the laser driving pulse by setting the starting timing of the laser driving pulse at resolution based on the multiple signal in accordance with the control signal;
- and
- forming the mark on the recording medium through laser beam irradiation based on the generated laser driving pulse.
Dependencies are inferred from the claim text.