Dynamic magnetic information storage or retrieval – Record editing
Patent
1986-09-18
1990-06-05
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
Record editing
360 64, 360 84, 360 101, 358312, 358313, H04N 578
Patent
active
049318837
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., between opposing heads of like azimuth) corresponds to a half horizontal video line and provides for precise self-interlacing of the repeated fields.
REFERENCES:
patent: Re29999 (1979-05-01), Hirota
patent: 3359365 (1967-12-01), Kihora
patent: 3718755 (1973-02-01), Crosno
patent: 4040101 (1977-08-01), Zoellner et al.
patent: 4073666 (1978-02-01), Lomax et al.
patent: 4075666 (1978-02-01), Lomax et al.
patent: 4283737 (1981-08-01), Nikami
patent: 4426666 (1984-01-01), Kobayashi et al.
patent: 4486792 (1984-12-01), Edakubo et al.
Translation of JP44-19333.
Baumeister Hans-Peter
Bernstein Lawrence J.
DiPietro Matthew
Hickok William K.
Hochreiter William T.
Eastman Kodak Company
Psitos Aristotelis M.
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