Apparatus and method for reproducing video signals

Claim 1

An apparatus for reproducing video signals recorded on a record medium in successive parallel record tracks which abut along their longitudinal edges and in which the recorded video signals include information and synchronizing signal portion modulating a carrier, a first set of said record tracks being comprised of every other one of the latter and having video signals recorded therein at a first azimuth angle which is different from a second azimuth angle with which video signals are recorded in the remaining tracks constituting a second set of record tracks, and said synchronizing signal portions of the video signals, as recorded in adjacent tracks, are out of alignment with each other; said apparatus comprising: first and second magnetic heads for sequentially scanning tracks of said first and second sets of tracks, respectively, said first and second magnetic heads having azimuth angles corresponding to said first and second azimuth angles of the respective tracks to be scanned thereby, and each of said heads being dimensioned and guided in the direction transverse to that along the track being scanned so as to span the full width of the track being scanned and to overlap an adjacent track by a distance ΔW=nλ/tanθ (n=1, 2, . . .), wherein λ is the wavelength of the carrier as modulated by said synchronizing signal portions of the video signals in said adjacent track and θ is the difference between said first and second azimuth angles of said heads, so as to substantially attenuate the most troublesome of the cross-talk from said adjacent track.

Claim 2

An apparatus for reproducing video signals recorded on a record medium in successive parallel record tracks which abut along their longitudinal edges and in which the recorded video signals include information and synchronizing signal portion modulating a carrier, a first set of said record tracks being comprised of every other one of the latter and having video signals recorded therein at a first azimuth angle which is different from a second azimuth angle with which video signals are recorded in the remaining tracks constituting a second set of record tracks, and said synchronizing signal portions of the video signals, as recorded in adjacent tracks, are out of alignment with each other; said apparatus comprising: first and second magnetic heads for sequentially scanning tracks of said first and second sets of tracks, respectively, said first and second magnetic heads having azimuth angles corresponding to said first and second azimuth angles of the respective tracks to be scanned thereby, and each of said heads being dimensioned and guided in the direction transverse to that along the track being scanned so as to span the full width of the track being scanned and to overlap an adjacent track by a distance ΔW=nλ/tanθ (n=1, 2, . . .), wherein λ is the wavelength of the carrier as modulated by said synchronizing signal portions of the video signals in said adjacent track and θ is the difference between said first and second azimuth angles of said heads, so as to substantially attenuate the most troublesome of the cross-talk from said adjacent track.