Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 21 - Head arrangements not specific to the method of recording or reproducing
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
12/1983
12/27/1983US4423446 Magnetic data recording and reading device with magnetic head positioning mechanism
12/27/1983CA1159559A1 Rotary recording medium reproducing apparatus capable of performing automatic search reproduction
12/27/1983CA1159558A1 Apparatus for detecting position of a reproducing transducer in a rotary recording medium reproducing apparatus
12/20/1983US4422169 Lens assembly for a video recorder-playback machine
12/20/1983US4422115 Lightweight dual head support assembly for magnetic disk drives
12/20/1983US4422110 Method and apparatus for multi-track data translation on a disc
12/20/1983US4422104 Time base error correcting apparatus for video player
12/20/1983US4422103 Device for reducing the effect of time base variations in video disc player
12/20/1983CA1159144A1 Dual mini-disk drive
12/13/1983US4420827 Disc reproducing system
12/13/1983US4420780 Self-loading magnetic head air bearing slider
12/07/1983EP0095766A1 Servo circuit for a signal reproducing apparatus
12/06/1983US4419707 Flexible band positioning device for a read/write head
12/06/1983US4419701 Data transducer position control system for rotating disk data storage equipment
11/1983
11/29/1983US4418371 Rolling bias spring
11/29/1983CA1157941A1 Method and apparatus for locating a movable servo controlled member during position signal drop-out
11/24/1983WO1983004133A1 Sector servo seek control
11/24/1983WO1983004130A1 Linear head actuator
11/24/1983WO1983004129A1 Head lift mechanism
11/23/1983EP0094712A1 Control voltage generating circuit for a piezoelectric element of a positioning device
11/23/1983EP0094504A1 Lock mechanism for a carriage assembly particularly for use in a disk storage device
11/23/1983EP0094495A2 Position control device for use in a data storage device
11/22/1983CA1157560A1 Deflectable transducer mounting assembly
11/22/1983CA1157504A1 Limited angle electric rotary actuator
11/16/1983EP0094314A1 Continuous-plus-embedded servo data position control system for magnetic disk device
11/16/1983EP0094313A1 Adaptive misposition correcting method and apparatus for magnetic disk servo system
11/15/1983US4416003 Both side record player
11/15/1983US4416002 Method and apparatus for high-density recording and reproduction
11/15/1983US4415941 Linear actuator for memory storage device
11/15/1983US4415939 Head positioning servo for disk drive
11/15/1983US4415936 Jitter compensation system in a rotary recording medium reproducing apparatus
11/15/1983US4415935 Tangential servo control signal generating device for recorded data reproducing device
11/15/1983US4415821 Dynamic magnetic preload bearing structure for a linear motor
11/15/1983CA1157147A1 Suspension for flying magnetic head
11/09/1983EP0093410A2 Apparatus for sensing a magnetic stripe on a recording media
11/08/1983US4414594 Linear actuator for a memory storage apparatus
11/08/1983US4414589 Embedded servo track following system and method for writing servo tracks
11/08/1983US4414586 Pilot signal recording and reproducing system
11/08/1983US4414584 High-speed playback for videodiscs
11/01/1983US4413334 Pickup arm with servo-controlled stylus
11/01/1983US4413292 Rotary recording medium reproducing apparatus capable of performing automatic search reproduction
11/01/1983CA1156366A1 Flylead for a video disc pickup stylus
11/01/1983CA1156364A1 Track error correction system for video disc player
11/01/1983CA1156362A1 Skipper-assisted active search
11/01/1983CA1156360A1 Video disc apparatus for clearing foreign matter from the signal pickup stylus during playback
10/1983
10/26/1983EP0092206A2 Amplifier with broad dynamic range and improved power efficiency
10/26/1983EP0092169A2 Method and apparatus for recovering information from a videodisc
10/26/1983EP0092168A2 Method and apparatus for recovering information from a videodisc
10/26/1983EP0092167A2 Method and apparatus for recovering information from a videodisc
10/26/1983EP0092166A2 Method for recovering information from a videodisc
10/26/1983EP0092165A2 Method and apparatus for recovering information from a videodisc
10/25/1983US4412319 Video disc player with self calibrating stylus translator
10/25/1983US4412165 Sampled servo position control system
10/18/1983CA1155545A1 Apparatus for controlling the motion of a moving tape
10/05/1983EP0090379A2 Data track searching device
10/05/1983EP0090055A1 Ceramic magnetic head slider
10/04/1983US4408312 Rotary recording medium reproducing apparatus with a tracking control defeating circuit for rapid track access
10/04/1983US4408238 Magnetic head arm assembly
09/1983
09/28/1983EP0089816A2 Apparatus for controlling the tracking position of a head in an apparatus for recording or reproducing information
09/28/1983EP0089715A1 Positioning device for the magnetic head of a disc-shaped magnetic memory
09/28/1983EP0089549A1 Optical disk apparatus
09/27/1983CA1154523A1 Control loop
09/21/1983EP0089277A1 Loading device for the main body of a platform, comprising at least one read/write transducer for an information carrier
09/21/1983EP0089197A1 Video disc reproducing apparatus
09/21/1983EP0089119A1 Optical memory system having an improved short seek capability
09/21/1983EP0089020A2 Data processing apparatus with means for recording data by moving a head to a plurality of tracks
09/20/1983US4406002 Servo system for a videodisc player carriage assembly
09/20/1983US4405956 Tracking apparatus for read/write head
09/20/1983CA1154163A1 Tracking servo apparatus for an optical information reproducing system
09/20/1983CA1154160A1 Bidirectional deflector driver for video disc
09/20/1983CA1154156A1 Nested loop video disc servo system
09/14/1983EP0088662A1 Optical unit associated with an optical head for reading/writing an optical disc
09/14/1983EP0088554A1 Method and system for detecting the position of and apparatus for positioning a read-write head in seek operation on a disk memory having data and servo sectors
09/14/1983EP0088538A1 Optical memory system having an improved track following
09/14/1983EP0088537A1 Optical memory system having an improved long seek capability
09/14/1983EP0088536A1 Optical memory system having improved track following and seeking capabilities
09/13/1983US4404671 Linear drive motor control system
09/13/1983US4404670 Pickup arm retainer for video disc cartridge
09/13/1983US4404669 Stylus assembly
09/13/1983US4404599 Laser recording information and pilot signals for tracking on a grooveless recording
09/07/1983EP0087997A1 Magnetical reproducing and/or recording device
09/07/1983EP0087718A1 Tracking servo control unit for an information reproducing apparatus
09/06/1983US4403316 Swing-arm device for an optical scanning unit
09/06/1983US4403266 Cassette tape player
09/06/1983US4403259 Apparatus for reading information from an information recording disc
09/01/1983WO1983003027A1 Optical memory having a short seek capability
09/01/1983WO1983003026A1 Optical memory system having a long seek capability
09/01/1983WO1983003025A1 Optical memory system having track following
09/01/1983WO1983003024A1 Optically memory system having track following and seeking capabilities
08/1983
08/31/1983EP0087300A2 Rotary head-positioning actuator for a disc data store
08/31/1983EP0087096A1 Head-arm bearing device for at least one scanning head in recording and reading devices for disk-shaped record carriers
08/30/1983US4402072 Video disc mastering using gimballed air puck
08/30/1983US4402070 Transfer control device for a reproducing transducer in a rotary recording medium reproducing apparatus
08/30/1983CA1153110A1 Rotary transducer head assembly
08/23/1983US4400807 Stylus position detecting apparatus
08/23/1983US4400806 Pickup arm suspension for video disc cartridge
08/23/1983US4400749 Carrier device for magnetic-electric transducer on a read/write unit operating with magnetic storage plates
08/23/1983US4400747 Servo system for data storage apparatus
08/23/1983US4400746 Apparatus for and method of determining transverse position of a transducer head relative to read data tracks
08/23/1983CA1152638A1 Memory disc addressing device
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