Matches 151 - 200 out of 411 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
6496314 Recording/playback apparatus with electric wave transmission  
A recording/playback apparatus accommodates a recording medium in a cassette shell and performs recording and/or playback with respect to the recording medium cassette provided with a cassette-side...
6456448 Magnetic recording system including magnetic recording medium having three-dimensional random orientation of axis of easy magnetization  
A magnetic recording system which can suppress an influence by a thermal fluctuation and is suitable for the high density magnetic recording in which excellent S/N ratio and resolution are obtained...
6441980 Method and mechanism to distinguish valid from outdated recording blocks in a tape drive  
A method and a mechanism enabling the method are described to aid in distinguishing new information from old information on a medium. A new variable called a Master Write Pass Count is created for...
6421195 Magnetic disk media with patterned sections  
A magnetic disk medium patterned linear magnetic channels in a radial direction of the disk is employed in a magnetic disk drive unit. The magnetic channels are patterned by high-resolution...
6414808 Patterning of magnetic media  
A method of generating or modifying patterns of topically specific magnetic modifications in an at least potentially ferromagnetic surface comprising the step of subjecting the surface to a...
6404575 Read/write preamp integrated head and process for fabricating same  
A read/write driver with a read/write head made of semiconductor material for writing and reading data from data media with a preamplifier forming a part of the read/write head for processing write...
6385392 Data processing apparatus and data processing method  
When data including video and/or audio data is dispersed into data each having a predetermined unit and recorded in a non-linear accessible recording medium, or reproducing data dispersed and...
6373649 Reduced head population detection in a disc drive  
An apparatus and method for determining the configuration of a disc drive head-disc assembly (HDA). The HDA includes an array of rotatable discs and an actuator adjacent the discs, with the...
6359744 Reducing thermal decay of data signals recorded on magnetic media  
A data storage device 15 comprises a recording head 35 and a recording media comprising a layer of magnetic material having an anisotropy that is substantially perpendicular to a plane of the...
6351339 Multi-dimensionally oriented magnetic field information storage system  
A disk medium includes a substrate and a designed topography of individually magnetizable features formed on the surface of the substrate. At least a portion of the disk topography is formed from...
6349008 Magnetic recording media, magnetic heads and magnetic read-write apparatus using the same  
A magnetic recording medium wherein, when the axis of easy magnetization of the magnetic recording medium for magnetically recording information by means of a magnetic head is projected onto a...
6336000 Retail video recording booth  
A retail audio-video recording booth includes walls which define an enclosed area for a customer to make an audio video recording. A door assures privacy. A seat or bench allows the customer to sit...
6327112 Adjacent track position detectable information storage apparatus  
An information storage apparatus has a disk medium setting data recording areas along a plurality of tracks concentrically arranged, a head for recording and reproducing data on tracks of the disk...
6327107 Spin tunnel magneto-resistance effect type magnetic sensor and production method thereof  
A magnetic sensor utilizing a spin tunnel magneto-resistance effect (TMR), comprising a tunnel insulating film, a first magnetic layer formed on one of the planes of the tunnel insulating film, a...
6320714 Reduced head population detection in a disc drive  
An apparatus and method for determining the configuration of a disc drive head-disc assembly (HDA). The HDA includes an array of rotatable discs and an actuator adjacent the discs, with the...
6317280 Thermomagnetic recording and reproducing head having a heating head with a width narrower than the magnetic heads, a recording and reproducing device with such a heating head and methods related thereto  
A thermomagnetic recording and reproducing head includes a floating slider, and a heating head, a reproduction-use magnetic head as an MR head and a recording-use magnetic head as a thin-film...
6295178 Cassette and recording/reproducing apparatus and method using the same  
A cassette houses a first and a second tape-like recording medium. The cassette is provided with a first and a second reel, at least a first tape guide provided between the first and second reels,...
6288862 Method and mechanism to distinguish valid from outdated recording blocks in a tape drive  
A method and a mechanism enabling the method are described to aid in distinguishing new information from old information on a medium. A new variable called a Master Write Pass Count is created for...
6262856 Magnetic information reproducing apparatus having power supply field cancellation facility  
A magnetic information reproducing apparatus includes a head which reads magnetic information from a magnetic recording medium, and an electric wire for supplying electric power from a power supply...
6249396 Magnetic media having partitioned and presaturated data tracks  
The present invention provides an apparatus and method of partitioning a recording medium data track into two longitudinal regions and erasing any preexisting signal on each region with a DC bias...
6229662 Magnetic recording/reproducing apparatus and magnetic tape  
A magnetic recording/reproducing apparatus of the helical scan system employing a MR head as a reproducing magnetic head. The magnetic recording/reproducing apparatus includes a MR head 6 and a...
6219193 Superpositioning microactuator control and write current signals in a disc drive  
An apparatus and method for reducing the number of interconnections in a disc drive through microactuator control and write current signal superpositioning. The disc drive includes a rotatable disc...
6212025 Magnetic recording and reproducing method and apparatus employing a magnetically continuous magnetic film  
A magnetic recording and reproducing method comprises the steps of forming magnetic domain walls in reference positions on a magnetic recording medium having a recording layer consisting of a...
6205419 Selective recall and preservation of continuously recorded data  
The invention relates to a process for selectively recording or recalling events, and a device therefor. The process for selectively recording events comprises the steps of: providing an...
6201651 Circuit for reproducing data and apparatus for reading data out of a magnetic disc based on calculated frequency cut off  
An apparatus for reading data out of a magnetic disc includes a circuit for reproducing data, the circuit having a high-pass filter having a cut-off frequency which is a maximum in the range that a...
6173363 Data transmission device for reading data from a memory medium and transmitting the data to a magnetic reproducing apparatus with a reduced noise  
A data transmission device which can read information on an IC card without changing a structure of a conventional floppy disc drive is provided. The IC card includes memory elements for storing...
6141177 Signal reproducing device and method with tracking error formation  
A device that reproduces signals recorded on a recording medium includes a unit that forms a tracking error signal from pilot signal components recorded in the signal being reproduced. A controller...
6124998 Information storage device  
A recording unit is provided, to which a write current is supplied in accordance with information to be stored. The recording unit records the information in a recording medium in accordance with...
6112032 Magnetic reproduction circuit for cameras equipped with the function of correctly reproducing magnetic information even under the presence of noise  
A magnetic reproduction circuit for cameras has a magnetic head for detecting magnetic information on a film. In this reproduction circuit, an amplifying circuit amplifies an output signal of the...
6108156 Method for recording a port number of a servo track writer  
A method for recording the port number of a servo track writer for efficiently managing a manufacturing process of a magnetic storage device. In a manufacturing process of a hard disk drive having...
6104331 Reproduced signal processing method, reproduced signal processing circuit, and a magnetic storage apparatus  
A reproduced signal processing circuit includes a variable gain amplifier to which a signal read from a medium by a reproducing head is inputted; an analog-to-digital converter for converting a...
6088183 Arcuate scan read/write assembly  
A circuit having a stationary portion and a rotating portion suitable for an arcuate scan assembly in a storage device is disclosed. The circuit includes a stationary encoder outputting an encoded...
6088181 Magnetic recording/reproducing device using composite head  
A magnetic recording/reproducing device comprises a recording head for magnetically recording a signal on a magnetic recording medium along a predetermined track, and a reproducing head member...
6088179 Method and apparatus for recording and reproducing magnetically, using detection of tunneling current generated by a spin tunnel effect  
A method of and an apparatus for magnetic recording and reproducing comprising: detecting a tunnel current generated by a spin tunnel effect caused between a conductive magnetic recording film, in...
6078453 Method and apparatus for optimizing the servo read channel of a hard disk drive  
A method of deriving optimum read channel parameters for use in reading servo sector data from a disk drive having a head mounted on an actuator, a read channel including a preamplifier, a disk...
6072392 Apparatus and method for monitoring and recording the audible environment of a child, patient, older person or pet left in the care of a third person or persons  
A remote recording unit, which is worn by a child, monitors the ambient sounds in a day care center (for example) and records selected sound bytes that are played back on a docking unit. The time...
6038095 Signal reproducing apparatus  
A signal reproducing apparatus realizes an auto-tracking in reproducing a plurality of recorded signals simultaneously with a simple construction. The signal reproducing apparatus is featured by...
5995313 Thermal asperity suppression using high speed shorting and baseline compensation  
An apparatus and method for suppressing the effects of thermal asperities in readback signals of a hard disc drive are disclosed. A suppression circuit is provided having a clamping path that...
5995309 Magnetic recording medium  
A method for magnetically recording/reproducing comprising recording an information signal by forming a pattern of a soft magnetic material in a magnetic recording medium; providing a...
5991104 Using servowriter medium for quickly written servo-patterns on magnetic media  
Servo-pattern information is magnetically recorded on a product disc by magnetic print-through from a master medium. The master servo-writing medium is brought into close proximity with the product...
5986842 Magnetic disk apparatus with circuit capable of identifying individual specification  
A magnetic disk apparatus is disclosed, in which the product specifications such as the number of heads, the number of disks and the information on the destination of the apparatus can be...
5986836 Magnetic recording method and device  
A magnetic recording method employing a magnetic head and a magnetic recording medium, wherein the size (H n ) of the magnetic field which gives the maximum differential for the direct current...
5959794 Method for precompensating signals for magnetic media noise  
A method and apparatus is disclosed for determining the remanent noise in a magnetic medium by DC saturation of a region thereof and measurement of the remaining DC magnetization. Conventional...
5949600 Signal reproduction method and magnetic recording and reproducing apparatus using tunnel current  
A magnetic recording and reproducing apparatus, including a probe made of a ferromagnetic film movable relative to a magnetic recording medium while having a distal end facing the magnetic...
5926334 Noise reduction system for an audio system  
An input signal from an audio system is divided into a plurality of frequency bands, and the signal in each frequency band is attenuated by an attenuator. The output signals of the attenuators are...
5912779 Method of reading and writing data on a magnetic medium  
A multiple-gap head for transferring data to or from a storage medium is disclosed. Data read by the gaps are directed over a plurality of serial data paths where the data are processed and...
5898532 MR head thermal asperity recovery  
A disc drive data recovery system for recovering data from a magnetic disc having asperities is disclosed. The data recovery system includes a magnetoresistive head for reading magnetically encoded...
5870239 Magnetic reproduction apparatus provided with a cross talk reduction system  
A magnetic reproduction apparatus with a cross-talk reduction system that includes first and second magnetic heads, wherein the distance between the first magnetic head which has a plus azimuth...
5844755 Giant magnetoresistive information recording medium, and associated recording and reproducing method and apparatus  
Information is recorded by applying weak and strong magnetic fields to a giant magnetoresistive medium having a pair of ferromagnetic layers, a nonmagnetic interlayer, and an antiferromagnetic...
5831782 Method and apparatus for supplying optimal bias current to a magnetic head  
Disclosed are a method of and an apparatus for controlling a magnetic disc drive including a magnetic head in which a write head and a read head are separated. The control method comprises: a step...
Matches 151 - 200 out of 411 < 1 2 3 4 5 6 7 8 9 >