Method and apparatus for recording digital signals, medium for recording digital signals, and method and apparatus for transmitting digital signals

摘要

An excellent waveform signal with less jitter is obtained as output signal from a reproducing optical pickup, irrespective of a relative reading speed, and an equalizing circuit is dispensed with on a reproducing apparatus side. An input bit sequence or a recording NRZI signal is provided with spatial frequency characteristics G(fs) by a G(fs) converter (31). An output signal from the G(fs) converter (31) is provided with equalizing frequency characteristics EQ(fs) necessary on a reproducing side by an EQ(fs) converter (32). An output from the EQ(fs) converter (32) is saturation-amplified by a saturation amplifier (24), thereby producing an ideally pre-jittered recording signal that has equivalent enhanced high-frequency component. The recording signal is recorded on an optical disk. <IMAGE>