Patent ID: 6222980
Filing Date: 2001-04-24
Classification: G11B,H04N

Abstract:
A time code signal generating apparatus comprising:a direction detector for detecting a direction of feed of a recording tape;a timer for counting pulses of a clock signal, and outputting a signal representing a first count value corresponding to a number of counted pulses;first means for generating a second count value corresponding to a pulse width related to a first bit represented by an input time code signal reproduced from the recording tape;second means for adding the first count value represented by the output signal of the timer at a first time point and the second count value generated by the first means into a first addition-result value;third means for comparing the first addition-result value generated by the second means and the first count value currently represented by the output signal of the timer to detect that the first count value currently represented by the output signal of the timer comes equal to the first addition-result value generated by the second means;fourth means for generating an output time code signal;fifth means for inverting the output time code signal generated by the fourth means when the third means detects that the first count value currently represented by the output signal of the timer comes equal to the first addition-result value generated by the second means;sixth means for selecting a second bit from among bits represented by the input time code signal in response to the direction detected by the direction detector, wherein the second bit to be selected neighbors the first bit in a normal time direction when the direction detected by the direction detector agrees with a forward direction, and the second bit to be selected neighbors the first bit in a reverse time direction when the direction detected by the direction detector agrees with a reverse direction;seventh means for generating a third count value corresponding to a pulse width related to the second bit selected by the sixth means;eighth means for adding the first count value represented by the output signal of the timer at a second time point after the first time point and the third count value generated by the seventh means into a second addition-result value; andninth means for updating the first addition-result value used by the third means into the second addition-result value generated by the eighth means.