Dynamic information storage or retrieval – Specific detail of information handling portion of system – Mechanical modification or sensing of storage medium
Patent
1985-03-05
1987-06-23
Cardillo, Raymond F.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Mechanical modification or sensing of storage medium
369139, 369146, H04R 916
Patent
active
046758593
ABSTRACT:
The invention is an intensified field focus moving coil phonocartridge assembly (10) including a rear magnet (32) and a front magnet (34) mounted in an axially juxtaposed manner within a support sleeve (38) so as to define therewith a magnetic field chamber (36). A signal coil subassembly (26) is suspended within the field chamber (36) and affixed to a cantilever (24) having a stylus (22) on its opposite end such that vibrations of the stylus (22) are physically translated to the signal coil subassembly (26). Electrical signals generated by the currents induced in the windings (29 and 30) of the signal coil subassembly (26) by induction caused by vibration within the field chamber (36) are carried to signal output pins (18) for electronic processing. The primary usage for the phonocartridge assembly (10) is in high quality stereo phonographic equipment for playing phonograph records.
REFERENCES:
patent: 3618124 (1971-11-01), Dreisback
patent: 3956598 (1976-05-01), Kawakami et al.
patent: 3963880 (1976-06-01), Ikeda
patent: 4103117 (1978-07-01), Morinaga
patent: 4160268 (1979-07-01), Goto et al.
patent: 4237349 (1980-12-01), Hansen et al.
patent: 4249747 (1981-02-01), Bauer et al.
patent: 4382454 (1983-05-01), Aoki et al.
patent: 4397013 (1983-08-01), Shiomi et al.
patent: 4488284 (1984-12-01), Aoki et al.
patent: 4541877 (1985-09-01), Stadelmaier et al.
Croopnick Bruce J.
Fletcher David W.
Cardillo Raymond F.
Hughes Michael J.
Sumiko, Inc.
Young Wayne R.
LandOfFree
Intensified field focus moving coil phonocartridge assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Intensified field focus moving coil phonocartridge assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intensified field focus moving coil phonocartridge assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-726531