Dynamic magnetic information storage or retrieval – Head mounting – For moving head during transducing
Reexamination Certificate
2000-03-09
2001-05-15
Cao, Allen T. (Department: 2754)
Dynamic magnetic information storage or retrieval
Head mounting
For moving head during transducing
Reexamination Certificate
active
06233123
ABSTRACT:
DETAILED DESCRIPTION OF THE INVENTION
1. Field of the Invention
This invention relates to a magnetic record reproducing apparatus, and more particularly, to a video tape recorder and a television with a video tape recorder to it.
2. Prior Art
In the conventional magnetic record reproducing apparatus, and more particularly, a video tape recorder, a power circuit, and a circuit except for it, namely, a video circuit were engaged in another print wiring substrate, and were positioned at a distance to avoid the influences of electric noises and magnetic fields and heat of the power pulse transfer.
PROBLEMS TO BE SOLVED BY THE INVENTION
A shield plate was required to be covered on the power circuit, because the power circuit and the video circuit were hard to avoid the influences of the magnetic field of the pulse transfer for power use in the space limited even if they were positioned at some distance.
Between the print wiring substrate engaged with the power circuit and the print wiring substrate with the video circuit being engaged with it were required many connecting wirings, whereby the operationally was worse and further electric noises were easy to be provided in these wirings.
An object of this invention is to provide a magnetic record reproducing apparatus having a configuration aimed at reducing the cost.
MEANS FOR SOLVING THE PROBLEMS
In the magnetic record reproducing apparatus of this invention, the power circuit is provided with a transfer having a core with a gap being formed init, and the transfer is positioned so that a direction for connecting the S pole with the N pole by the leakage magnetic flux from the gap of the core and a direction for connecting the central portion of the cylinder, where the magnetic head is provided with the central portion of the gap of the transfer may become approximately vertical, and the cylinder and the transfer is positioned with such a length being open as a reading signal by the magnetic head is hardly influenced by the leakage magnetic flux.
Thus, the magnetic flux leaking from the transfer hardly comes out in the direction of the magnetic head. Since the cylinder where the magnetic head is provided and the transfer are positioned with such a distance being open as a reading signal by the magnetic head is hardly influenced by the leakage magnetic flux, the magnetic head is hardly subject to ill influences by the leakage magnetic flux.
In the magnetic record reproducing apparatus of this invention, the electronic parts of the power circuit is engaged with a power region which is one region in one print wiring substrate, the electronic parts for the record reproducing use, having a magnetic head except for the electronic parts of the power circuit, is provided with the print wiring substrate mounted in the record reproducing circuit region which is a region except for the power region of the print wiring substrate Also, the power circuit of the power region is provided with a transfer having a core with a gap being formed in it, the transfer is positioned so that a direction for connecting the S pole with the N pole by the leakage magnetic flux the gap of the core and a direction for connecting the central portion of the cylinder, where the magnetic head is provided, with the central portion of the gap of the transfer may become approximately vertical, and the cylinder and the transfer are positioned with such a distance being open as a reading signal by the magnetic head is hardly influenced by the leakage magnetic flux.
In this case the magnetic flux leak from the transfer hardly comes out in the direction of the magnetic head. Since the cylinder where the magnetic head is provided and the transfer is positioned with such a distance being open as a reading signal by the magnetic head is hardly influenced by the leakage magnetic flux, the magnetic head is hardly subject to ill influences by the leakage magnetic flux. The electronic parts of the power circuit, and the record reproducing electronic parts such as a magnetic head except for the electronic parts of the power circuit are positioned an one print wiring substrate by the positioning in different region on the print wiring substrate.
In a magnetic record reproducing apparatus of this invention, the above description can be conducted even if the transfer is large in relatively leakage magnetic flux as in the pulse transfer.
The magnetic record reproducing apparatus is to include the magnetic reproducing specific apparatus.
REFERENCES:
patent: 5053881 (1991-10-01), Campisi
patent: 5094513 (1992-03-01), Fukuda
patent: 5564778 (1996-10-01), Higuchi et al.
patent: 59-154486 (1984-09-01), None
patent: 2-41574 (1990-03-01), None
patent: 3016157 (1995-09-01), None
Panasonic PV-1230 Service Manual. (Figs. on pp. 5-7 of vol. 5 & 2; The 2 Items About Transformer Products on p. 104; Items in 2 are in English on Lower Right Half of the Same Page).
Cao Allen T.
Funai Electric Co. Ltd.
LandOfFree
Magnetic recording/reproducing apparatus 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/reproducing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording/reproducing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2526433