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Class 360/84 - Rotating head


Subclass of Class 360 - Dynamic magnetic information storage or retrieval
Definition: Subject matter wherein the movement of the head is a rotational
No. of patents: 322
Last issue date: 08/26/2008


1                  
NumberTitleIssue Date
7417713Optical disc with a theft deterrent coating
An optical disc used for storing content includes a theft control area selected to render the disc unreadable. The disc must be exposed to radiation of a specific wavelength before it can be read by a regular device. The theft control area may include an area that c...
08/26/2008
7412153Information recording device and method, and information recording system
In recording information, an SMPTE 339M-defined UMID buried in video and audio material signals to be recorded to a magnetic tape (30) or a UMID generated from information other than the material signals, is written to a contactless memory tag (37), wh...
08/12/2008
7342742Magnetic recording and reproduction apparatus
A magnetic recording and reproduction apparatus includes a rotatable head cylinder for recording information to, and/or reproducing information from, a magnetic tape; a tape pull-out member for pulling out the magnetic tape; and a guide member for guiding the tape p...
03/11/2008
7260884Method of manufacturing a drum assembly associated with video tape machine
A method of manufacturing a drum assembly associated with a digital betacam video tape machine is disclosed. The method includes providing a helical scan drum assembly having a stationary upper drum, a stationary lower drum and a plurality of rotating read/write hea...
08/28/2007
7256958Loading gear supporting apparatus of video cassette recorder
Disclosed is a loading gear supporting apparatus of a video cassette recorder which can assemble a loading gear supporting member which supports a pole base loading gear, a first loading gear, and a second loading gear to a deck more simply. To this end, a locking p...
08/14/2007
7251093Tape system with adjustable wrap angles and method for adjusting tape wrap angle
A method for adjusting a tape wrap angle is described comprising the steps of operating the tape system to generate or regenerate an electrical signal in the head from the tape, either increasing or reducing the tape wrap angle as appropriate until a signal from the...
07/31/2007
7239465Multiple section head assembly for dual azimuth recording
A magnetic head assembly for writing multiple tracks to a tape that travels in a first direction is provided. The assembly includes a first head section for writing a first subset of the tracks, and a second head section for writing a second subset of the tracks. Fu...
07/03/2007
7239662System and method for video error concealment
The present invention provides, in one embodiment, a system and method for concealing video errors. The system encodes, reorders, and packetizes video information into video data packets for transmission over a communication network such that the system conceals err...
07/03/2007
7235168Method for electrochemically forming a hydrodynamic bearing surface
A method of forming a hydrodynamic bearing surface on a workpiece is provided. The method comprises electrochemically etching away all material in a region of the surface, except for portions of the region defined by a land pattern on an etching cathode. The step of...
06/26/2007
7218469Reel driving apparatus and magnetic recording and reproducing device having the same
A reel driving apparatus and a magnetic recording and reproducing device including the reel driving apparatus, where the reel driving apparatus includes: a driver including at least a portion protruding under a deck chassis; a power transmitting unit transmitting a ...
05/15/2007
7170710Magnetic recording and reproduction apparatus
A magnetic recording and reproduction apparatus includes a cylinder; a first chassis section; a second chassis section; and at least first, second and third tape guide members. The second chassis section is movable between a first position and a second position. Whe...
01/30/2007
7096187Compressed audio information
Compressed entertainment content such as audio or video or both includes additional aspects and operations associated their way. The compressed audio may be used to signal computers such as a telephone or reminder for an appointment. A melody line may be extracted f...
08/22/2006
7092192Videotape recording and playback device, and videotape player
The object of the present invention is to reduce the load and specification requirements on the network and the video server. The buffer usage rate is counted and supplied to the tape driving controller 7. In the reproduction mode, the tape driving controller...
08/15/2006
7082015Rotary drum and magnetic reproducing apparatus or magnetic recording and reproducing apparatus using the same
A rotary drum includes a plurality of reproducing heads each having a plus azimuth angle (+azimuth angle), which heads are collectively arranged at a location in the circumferential direction of the rotary drum in such a manner as to be in close proximity to each ot...
07/25/2006
7073634Automated warehouse row cart and lift
An automated warehouse system row cart includes a lifter that uses cams to raise and lower pallets. Three symmetrical cam lobes are cut into a hollow cylinder. Three matching cam lifters ride these lobes and are attached to an elevator plate. A stepper motor running...
07/11/2006
7057840Magnetic record and playback device
With a magnetic record and playback device that permits rapid switching from fast forward (FF) mode or rewind (REW) mode to playback (FWD) mode, when it is necessary to switch rapidly from fast forward (FF) mode or rewind (REW) mode to playback (FWD) mode, the devic...
06/06/2006
7054100Magnetic tape recording/reproducing device and magnetic tape recording/reproducing system
The present invention is to provide a magnetic tape recording/reproducing device capable of accurately positioning a magnetic tape relative to a magnetic head to thereby improve recording/reproduction characteristics to or from the magnetic tape even when the runnin...
05/30/2006
7028814Method and apparatus for positioning an end of a push rod of a brake actuator
The invention relates to a method and apparatus for positioning components of a brake system, which includes a push rod, a ball end coupled to the push rod, and a force transfer member placed between the push rod and the ball end. The force transfer member has both ...
04/18/2006
7031088Apparatus and method for detecting an abnormality in a recorded signal
An apparatus for detecting an abnormality of a recorded signal of a recorder/player includes a plurality of recording/reproducing heads for recording/reproducing a signal onto/from a medium, and a determining portion for determining an abnormality of the recorded si...
04/18/2006
7019947Head drum assembly mounting structure on a deck of a tape recorder
In a head drum assembly mounting structure on a deck of a tape recorder, a plurality of connecting holes and positioning holes are formed in a drum boss provided at a lower portion of a fixing drum, and a plurality of coupling holes and positioning pins are formed i...
03/28/2006
7018730Data storage tape with patterned surface
Data storage tape includes a substrate having a first side and a second side opposite the first side, a recording layer disposed on the first side of the substrate, and a coating disposed on the second side of the substrate. A surface of the coating has a pattern fo...
03/28/2006
7009794Magnetic recording and reproducing device
In a magnetic recording and reproducing device having a 1ch head and a 2ch head, an azimuth recording operation is carried out on an obliquely evaporated magnetic tape. Angles θ1 and θ2 formed by a direction of a head azim...
03/07/2006
7002777Tape drive head with lower core layer side inclined at angle equal to or greater than azimuth angle and aligned with upper core layer edge
A thin film magnetic head, in which: a magnetic gap thereof is disposed slantingly relative to a direction orthogonal to a scanning direction of the head corresponding to an azimuth angle; an upper magnetic core layer is positioned on a leading side preceding a lowe...
02/21/2006
6961220Laser welded head drum for VCR
In a video recorder with a rotary head drum, a lower drum (1) and drum base (2) are joined together by laser welding to simplify assembly and reduce manufacturing cost. ...
11/01/2005
6937008Rotating angle detector and apparatus thereof for detecting the rotating position of a rotor
A rotating angle detector (10) according to the invention comprises magnetic field generating means for rotating integrally with a detected member and uniformly generating a magnetic field in one direction perpendicularly to a rotating axis in a stationary st...
08/30/2005
6922315Head drum with magnetic mounting of rotary transformer
According to a first aspect the present invention is related to a head drum arrangement allowing a much easier mounting of the rotary transformer. The head drum arrangement comprises a non-rotating lower drum and a rotating upper drum, which are connected by a shaft...
07/26/2005
6909581Tape head assembly with air bearing guide
A transducer head assembly used in a read/write recording apparatus employs an air bearing that supports a carriage on an air cushion for reciprocal motion. The carriage supports a transducer and is moved by a drive in order to read or write on a track located on a ...
06/21/2005
6819529Head drum device with carbon-containing synthetic resin upper drum and larger diameter intermediate drum
A head drum device of the present invention prevents a magnetic tape (2) from clinging to the head drum device (3) due to electrostatic charge by using a carbon-containing synthetic resin as the material of an upper drum (33) in order to reduce ...
11/16/2004
6751057Magnetic recording/reproducing apparatus and rotary head drum device
A guide plate is provided along the respective outer periphery of rotary and fixed drums on the upstream side relative to an inlet portion where a magnetic tape starts making contact with a magnetic head on the rotary drum, an airflow attendant on the rotation of th...
06/15/2004
6747828Apparatus and method for detecting an abnormality in a recorded signal
An apparatus for detecting an abnormality of a recorded signal of a recorder/player includes a plurality of recording/reproducing heads for recording/reproducing a signal onto/from a medium, and a determining portion for determining an abnormality of the recorded si...
06/08/2004
6680808Magnetic millipede for ultra high density magnetic storage
The present invention relates to computer storage systems which have a tip (24) directed close or in contact to the storage medium (10) by which bit-writing and bit-reading is enforced. It is proposed to use a magnetizable storage medium (10), expose it t...
01/20/2004
6661601Cabinet structure for a magnetic tape recorder
Disclosed is a cabinet structure for a magnetic tape recorder having a rear-and-bottom structure to which a deck of the magnetic tape recorder is to be fixed. At least selected part or parts or the whole of the rear-and-bottom structure are of a sheet of ...
12/09/2003
6563664Magnetic signal recording and reproducing apparatus and magnetic signal recording and reproducing method
There are provided an approximately cylindrical rotary drum, a magnetic field applying means and a magnetic field detecting means that are mounted on the rotary drum, signal processing means, and a tracking control means for performing a tracking control ...
05/13/2003
6515833Rotating drum assembly and magnetic recording/reproducing apparatus having a tape-contact piece
A rotating drum assembly, and a magnetic recording/reproducing apparatus including the rotating drum assembly, are provided. The rotating drum assembly comprises a cylindrical rotating drum; a magneto-resistive head installed on the rotating drum to proje...
02/04/2003
6411465Rotary head drum assembly with upper, lower and inner drums with cylindrical surfaces of differing outward radial position
A rotary head in which the tape running load is decreased by setting the tape path cylindrical surface of an upper drum (12) in a range of winding of a tape (31) at an inner side relative to the tape path cylindrical surface of a lower drum (11). Alternat...
06/25/2002
6356416Assembly comprising at least one embedded chip with magnetic head(s)
An assembly including at least one chip with an embedded magnetic head. A base and/or a cover includes at least partially a housing in which the at least one chip is embedded. Such an assembly may find particular application to a magnetic recording system...
03/12/2002
6313965Chassis for mounting a mechanism such as a video cassette recorder
A mechanism chassis 1 comprises a polygonal flat plate portion 11 for arranging a plurality of mechanisms on a surface of thereof, and a plurality of side plate portions 12, 13, 14, 15 bent from the respective contour sides of the flat plate portion 11 to...
11/06/2001
6304410Helical scanning magnetic recording/playback device having multiple pairs of playback heads and recording heads
Two playback heads A1 and A2 having the same azimuth θ and having a track width W11 equivalent to about 1.5 times the track width W2 of the recording head are paired to form a pair of heads. These playback heads A1 and A2 paired to ...
10/16/2001
6172840Magnetic recording/reproduction apparatus including a rotary head cylinder and both vertical and inclined guides for winding a magnetic tape about the rotary head cylinder
An apparatus of the present invention is a magnetic recording/reproduction apparatus for pulling out a magnetic tape from a tape cassette and winding the magnetic tape around a rotary head cylinder, having a rotary head, for a predetermined arc, for recor...
01/09/2001
6125001Method and apparatus for recording digital signal and drum unit for recording FM audio signal and digital signal
A digital signal recording method of the present invention for recording data divided into at least two segments in a recording track on a magnetic tape with a magnetic head mounted onto a rotational drum, includes the steps of: recording a first segment;...
09/26/2000
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