Dynamic magnetic information storage or retrieval – Record editing
Patent
1993-03-30
1995-07-11
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
Record editing
360 27, 360 371, 360 64, 358312, H04N 578
Patent
active
054326486
ABSTRACT:
The present invention provides a magnetic recording and reproducing unit of a helical scan type having a slow speed tape running mode in which the speed of running a magnetic tape is slower than that of a standard running mode. The magnetic recording and reproducing unit of the present invention has a pair of azimuth heads of mutually different azimuthal angles which are mutually adjacently disposed on the outer periphery of a rotating cylinder and another pair of azimuth heads of mutually different azimuthal angles which are mutually adjacently disposed at positions symmetrical with the first pair of azimuth heads with respect to a rotating center of the rotating cylinder. Each pair of the two pairs of azimuth heads alternately traces tracks recorded with image signals on a magnetic tape to reproduce the recorded image signals. Further, the magnetic recording and reproducing unit of the present invention has a control head for reproducing from the magnetic tape a control signal which is synchronous with a header position of the recorded tracks, a traced azimuth predicting signal generating unit for generating a predetermined azimuth change over signal in response to the control signal, and a switching unit for selecting one of reproduced image signals from the pair of azimuth heads according to the change over signal in the slow speed running mode.
REFERENCES:
patent: 4241365 (1980-12-01), Koda et al.
patent: 4542418 (1985-09-01), Yoneyama et al.
patent: 4796128 (1989-01-01), Takimoto
patent: 4914531 (1990-04-01), Kaaden et al.
patent: 5109305 (1992-04-01), Ohsawa et al.
patent: 5184254 (1993-02-01), Kaneko et al.
patent: 5359462 (1994-10-01), Park et al.
JP59216385 Patent Abstracts of Japan, Toshifumi et al., Magnetic Reproducing Device Apr. 13, 1985 vol. 009085.
Kudo Mitsuru
Okada Yoshinori
Tanaka Masahiro
Watanabe Mitsuhiko
Hitachi , Ltd.
Sniezek Andrew L.
LandOfFree
Magnetic recording and reproducing unit with selection of reprod does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic recording and reproducing unit with selection of reprod, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording and reproducing unit with selection of reprod will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-507675