Inventors:
Hans-Peter Baumeister - Churchville NY
William K. Hickok - Brighton NY
Lawrence J. Bernstein - Honeoye Falls NY
Matthew DiPietro - Webster NY
William T. Hochreiter - Rochester NY
International Classification:
H04N 578
Abstract:
A skip-field guard-bandless video tape recorder records and plays back adjacent tracks on a video tape with two closely adjacent heads of opposing head gap azimuth angles (to suppress cross-talk), only during alternate (odd) half-rotations of the head drum. Unavoidable cross-talk of synchronization pulses from adjacent tracks does not create visible interference or timing errors during playback by virtue of a special offset angle. theta. sub. 1, between the adjacent recording heads, proportional to the linear offset distance between adjacent tracks. During playback, skipped fields are "filled-in" by a repetition of each recorded field through a second (duplicate) pair of closely adjacent heads of opposing azimuth positioned to retrace the recorded tracks during the other alternate (even) half-rotations of the head drum. An offset angle. theta. sub. 2 between the two head pairs (i. e.