| Patent Number |
Title Of Patent |
Date Issued |
| 5463506 |
Head drum apparatus |
October 31, 1995 |
| A head drum apparatus includes a cylindrical piezoelectric ceramic member formed of a polarized ceramic material and having inner and outer peripheral surfaces. A plurality of electrodes are formed on at least one of the inner and outer peripheral surfaces of the piezoelectric ceramic |
| 5373404 |
Helical scan type rotary head drum unit |
December 13, 1994 |
| The present invention relates to a rotary drum unit in a helical scan type magnetic recording/reproducing device for use with a video tape recorder, digital audio tape recorded, or the like and is intended to permit the stable run of the tape with highly accurate formation of track patte |
| 5270890 |
Helical scan type rotary head apparatus |
December 14, 1993 |
| The present invention relates a helical scan-type magnetic recording and reproducing for use in VTR or DAT. This apparatus includes a head scanning mechanism which helically scans the tape (3) that runs in parallel with a reference plane using a head (4) rotatable along a slit (5) formed |
| 5206771 |
Tape drive mechanism |
April 27, 1993 |
| A tape drive mechanism for a video tape recorder and an audio tape recorder. The tape drive mechanism automatically corrects the position of tape in the width-wise direction thereof without mechanically restricting the edge of tape. Sensors (8) and (8) on a tape path detect a dislocation |
| 4875610 |
Method of and system for driving magnetic tape |
October 24, 1989 |
| A unidirectional traveling-surface-wave by ultrasonic oscillation is generated on a surface of an oscillator, and a magnetic tape is run in the direction opposite to the traveling direction of the surface wave by pressing the surface of the oscillator against a surface of the magnetic |
| 4400666 |
Fixed rate delay circuit |
August 23, 1983 |
| A binary number 2.sup.n can be divided at a rate 2.sup.m by means of shifting down successive digits thereof by m digits, n and m being positive integers which have a relation n>m therebetween. According to the above principle, successive digits of a binary number, which represents |
