Patent ID: 6011894
Filing Date: 2000-01-04
Classification: G11B,H04N

Abstract:
A recording and reproducing apparatus for recording video signal and indexing signal to seperate video signal areas and subcode areas, respectively, of diagonal tracks formed on a tape by a rotating head, said apparatus comprising:tape drive means for driving the tape;an add command generator for generating an add command to add said indexing signal;an indexing signal control for setting and resetting said indexing signal;recording means for recording the video signal to the video signal area and the indexing signal, if any, to the subcode area of each track;reproducing means for reproducing a recorded signal from said tape;switching means for switching between a recording mode in which said recording means is connected to said head and a reproducing mode in which said reproducing means is connected to said head;indexing signal detection means for detecting set and reset states of said indexing signal during said reproducing mode; andediting control means for controlling said indexing signal control in response to said add command such that a portion of the tape is reproduced for a second predetermined amount to detect any leading edge of previously recorded indexing signal, and if a leading edge of a previously recorded as a set state from a first said indexing signal is recorded as a set state from a first position where said add command is generated to a second position which is before said leading edge by a first predetermined amount,wherein, if said leading edge is detected, said editing control means preserves said leading edge on said tape when recording said indexing signal.