Patent ID: 7593301
Filing Date: 2009-09-22
Classification: G11B

Abstract:
1. A recording apparatus for generating write pulses suitable for various optical recording media, the recording apparatus comprising: a pattern detector receiving a non return to zero inverted (NRZI) signal and distinguishing between information about a mark and information about a space; a memory storing timing parameters for a start pulse, a middle pulse, an ending pulse, and a cooling pulse of the write pulses corresponding to each of the various recording media; a register accessed as an activation table that determines whether a laser signal is to be turned on/off at time points set by the timing parameters; a parameter fetcher fetching suitable timing parameters from the memory in response to a result of the distinguishing by the pattern detector; and a write pulse generator generating the write pulses based on the timing parameters received from the parameter fetcher and information stored in the register, wherein the timing parameters comprise parameter ts