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Class Information
Number: 360/77.16
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head > Track centering > Elongated web carrier (i.e., tape) > Transverse scan path > Having head deflection drive (e.g., piezoelectric bimorph)
Description: Subject matter having an electrostatically actuated device for moving the transducer head.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7312945 |
Techniques for adjusting for actuator non-linearities in a data storage system |
Dec. 25, 2007 |
| 6704158 |
Shear mode multilayered collocated micro-actuator for dual-stage servo controllers in disk drives |
Mar. 9, 2004 |
| 6600619 |
Vibration control of piezoelectric microactuator |
Jul. 29, 2003 |
| 6216050 |
Actuator control apparatus and magnetic disk unit |
Apr. 10, 2001 |
| 6118613 |
Electromagnetic actuator drive circuit |
Sep. 12, 2000 |
| 6115204 |
Rotary head type magnetic recording/reproducing apparatus employing dynamic closed loop and semi-closed loop or open loop tracking systems |
Sep. 5, 2000 |
| 5969898 |
Method and system for reading data that is unreadable by a tape drive |
Oct. 19, 1999 |
| 5963388 |
Signal recording or reproducing apparatus |
Oct. 5, 1999 |
| 5933289 |
Magnetic recording/reproducing device with wireless transmission of position control signal to head transducer on rotary drum |
Aug. 3, 1999 |
| 5880953 |
Control system and information recording and reproducing apparatus |
Mar. 9, 1999 |
| 5870244 |
Magnetic recording/reproduction apparatus and method for adjusting head height therein |
Feb. 9, 1999 |
| 5867336 |
Apparatus and method for rotary head height measurement |
Feb. 2, 1999 |
| 5694273 |
Rotary head type magnetic recording reproducing apparatus |
Dec. 2, 1997 |
| 5684652 |
Rotary magnetic head device using plural magnets and coils to position plural magnetic heads |
Nov. 4, 1997 |
| 5682076 |
Ceramic disc-drive actuator |
Oct. 28, 1997 |
| 5675449 |
Magnetic recording/reproducing device with wireless transmission of position control signal to head transducer on rotary drum |
Oct. 7, 1997 |
| 5654843 |
Method and apparatus for following curved tracks on a tape |
Aug. 5, 1997 |
| 5646803 |
Rotary magnetic head device with head base and transducer having linear expansion coefficients in a similar range |
Jul. 8, 1997 |
| 5566378 |
Movable head position controlling device for magnetic recording and reproducing apparatuses |
Oct. 15, 1996 |
| 5521769 |
Magnetic tape drive with displaceable head capable of a re-try operation |
May. 28, 1996 |
| 5513051 |
Image signal recording and reproducing apparatus having a quasi-fixed head |
Apr. 30, 1996 |
| 5502606 |
Rotary magnetic head device having plural magnetic heads which are independently movable |
Mar. 26, 1996 |
| 5500777 |
Magnetic head drive which uses independently controlled piezo-electric elements |
Mar. 19, 1996 |
| 5463506 |
Head drum apparatus |
Oct. 31, 1995 |
| 5450256 |
Rotary head adjuster |
Sep. 12, 1995 |
| 5444581 |
Rotary head for use in a magnetic recordiang and reproducing apparatus wihich includes height adjuster |
Aug. 22, 1995 |
| 5432658 |
Rotary-magnetic-head dynamic track following device |
Jul. 11, 1995 |
| 5404252 |
Movable head position controlling device for magnetic recording and reproducing apparatuses |
Apr. 4, 1995 |
| 5402279 |
Tracking apparatus for helical scan video tape recorders |
Mar. 28, 1995 |
| 5400192 |
Storage device having vibratory head |
Mar. 21, 1995 |
| 5384676 |
Magnetic head position controller in a magnetic recording and reproducing apparatus |
Jan. 24, 1995 |
| 5379164 |
Helical scan system information signal recording/reproducing apparatus using control signal phase data and head height data from memory during control signal drop out |
Jan. 3, 1995 |
| 5373404 |
Helical scan type rotary head drum unit |
Dec. 13, 1994 |
| 5343342 |
Magnetic recording and playback system with feedback control of a movable transducer head |
Aug. 30, 1994 |
| 5343348 |
Actuator for displacing a magnetic head |
Aug. 30, 1994 |
| 5343334 |
Video tape that records, plays back, and rerecords video signals to overcome dropouts |
Aug. 30, 1994 |
| 5341256 |
Rotary head adjuster |
Aug. 23, 1994 |
| 5331480 |
Dynamic tracking reproduction apparatus |
Jul. 19, 1994 |
| 5313347 |
Rotating magnetic head for a magnetic recording reproduction system |
May. 17, 1994 |
| 5280399 |
Video signal recording apparatus |
Jan. 18, 1994 |
| 5274515 |
Tracking control device for a video tape recorder |
Dec. 28, 1993 |
| 5270891 |
Vertically distant magnetic head units with piezoelectric error tracking |
Dec. 14, 1993 |
| 5270529 |
Device for sensing rotary head position of magnetic recording and reproducing apparatus |
Dec. 14, 1993 |
| 5270890 |
Helical scan type rotary head apparatus |
Dec. 14, 1993 |
| 5256850 |
Azimuth adjusting method for magnetic head |
Oct. 26, 1993 |
| 5255140 |
VCR magnetic recording head for both digital and VHS format |
Oct. 19, 1993 |
| 5247404 |
Magnetic recording and reproducing apparatus with magnetic head displacement correction |
Sep. 21, 1993 |
| 5241434 |
Magnetic recording signal reproducing apparatus |
Aug. 31, 1993 |
| 5223992 |
Rotary magnetic head device in magnetic recording and reproducing apparatus |
Jun. 29, 1993 |
| 5210663 |
Tracking control device and magnetic recording and reproducing apparatus using the device |
May. 11, 1993 |
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