Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7974032 | Non-linear transition shift identification and compensation A system for identifying and compensating for non-linear transition shift in a magnetic medium data storage device is disclosed. The non-linear transition shift compensation system includes a non-linear transition shift estimation module adapted to generate non-line... | 07/05/2011 |
| 7859780 | Systems and methods for on-the-fly write pre-compensation estimation Various embodiments of the present invention provide systems and methods for write pre-compensation. For example, various embodiments of the present invention provide systems for on-the-fly estimation of write pre-compensation values. Such systems include a magnetic... | 12/28/2010 |
| 7751137 | Method for improving sequence detection performance by removing excess paths A method leverages knowledge of the actual or ideal bit sequence to improve the performance of any sequence detector. This improved performance results by constraining the sequence detector when the sequence detector has knowledge of known patterns within the sample... | 07/06/2010 |
| 7583459 | Method and apparatus for write precompensation in a magnetic recording system A phase interpolator is provided that, in one implementation, includes an output node, a plurality of phase input circuits, and a plurality of switches corresponding to the plurality of phase input circuits. Each phase input circuit is operable to receive a given ph... | 09/01/2009 |
| 7515368 | Precompensation circuit for magnetic recording A pre-compensation circuit comprises a clock delay generator that generates clock delay data based on a clock signal having a first clock rate. A reference clock delay unit receives the clock signal and generates reference clock delay information based on the first ... | 04/07/2009 |
| 7334165 | Signal processing apparatus and a data recording and reproducing apparatus including local memory processor In a data recovery processing, the conventional overhead, primarily, latency due to a rotational recording media is removed. Secondary, in a signal processing or in a recording and reproducing apparatus, reliability of data reproduction is improved by repeatedly pro... | 02/19/2008 |
| 7328412 | Method and apparatus for displaying a gain control interface with non-linear gain levels A method for displaying a gain control interface having a gain level display with non-linear gain levels. The gain level display has a first end having an associated first pixel offset value and a second end having an associated second pixel offset value. A range of... | 02/05/2008 |
| 7310823 | Digital information recording apparatus and outputting apparatus A digital information recording apparatus includes multiple recording circuits for making multiple copies. The apparatus limits the number of copies, however, in accordance with copy information provided within the digital information itself. When the number of copi... | 12/18/2007 |
| 7278071 | Receiving circuit for receiving message signals The invention relates to a receiving circuit for receiving message signals, having a sampler for converting the message signal into a sampled signal, an analyzing unit for decoding the sampled signal and checking it for errors, and a control unit for controlling the... | 10/02/2007 |
| 7251090 | Pattern dependent write equalization A pattern dependent write equalization method is disclosed. The method includes identifying a trait of a data pattern in a stream of write data. A characteristic of a write equalization signal is then defined according to the identified trait for the data pattern. | 07/31/2007 |
| 7245445 | Method of managing defects in hard disk drive, recording media therefor and hard disk drive therefor A method of managing defects in a hard disk drive, and more particularly, a method of managing defects in a hard disk drive in a case where a position of defects on a disk is known in advance. A data zone is allocated to predetermined tracks around tracks including ... | 07/17/2007 |
| 7245451 | Methods using extended servo patterns with variable multi-pass servowriting and self-servowriting The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second... | 07/17/2007 |
| 7227714 | Methods for conditional servowriting To account for head misplacement while servowriting, conditional writing and/or trimming of servo information can be used. Conditional servowriting allows servowriting to be disabled when it is determined that servo information will not be written and/or trimmed at ... | 06/05/2007 |
| 7203607 | System and method for determining intergranular exchange in perpendicular recording media A method for estimating the average intergranular exchange field using measurements of major and minor hysteresis loops. The method also facilitates deshearing hysteresis loops for analysis purposes in perpendicular media. This estimation technique is especially imp... | 04/10/2007 |
| 7196866 | Interconnect structure having multiple layers of traces for electrical connection to a tape head assembly An apparatus and method for electrically coupling read elements and write elements of a tape head assembly to another component includes an interconnect structure having plural layers of traces, with the traces comprising write traces electrically connected to respe... | 03/27/2007 |
| 7190546 | Systems using extended servo patterns with variable multi-pass servowriting and self-servowriting The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second... | 03/13/2007 |
| 7184231 | Precompensation circuit for magnetic recording In a precompensation circuit for magnetic recording of data signals, a clock produces clock signals at a predetermined rate to clock the recording of the data signals. A clock delay generator generates clock delay data relative to the generated clock signals for suc... | 02/27/2007 |
| 7180696 | Methods for selective multi-pass servowriting and self-servowriting The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second... | 02/20/2007 |
| 7180695 | Systems for self-servowriting with multiple passes per servowriting step The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where servo bursts are used to define a position on the media, trimming a first burst and writing a second burst on separate re... | 02/20/2007 |
| 7167330 | Over-writing data in a recording system A recording system stores recording cycle information identifying the parameters for recording user data on a particular data sector. During a subsequent operation, the recording system employs the recording cycle information to select a different set of parameters ... | 01/23/2007 |
| 7167335 | Systems for variable multi-pass servowriting and self-servowriting The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second... | 01/23/2007 |
| 7164371 | Method and apparatus for data coding for high density recording channels exhibiting low frequency contents A method and apparatus for data coding for high-density recording channels exhibiting low frequency contents is disclosed. Coding is used that satisfies both Running Digital Sum (RDS) and Maximum Transition Run (MTR) properties, which are desirable for achieving hig... | 01/16/2007 |
| 7158407 | Triple pulse method for MRAM toggle bit characterization A method is provided for testing magnetic bits (3, 104, 514) of an array. A train of first (702), second (704), and third (706) pulses is provided to a desired bit, the first and second pulses beginning at a substantially similar low fiel... | 01/02/2007 |
| 7149043 | Methods for self-servowriting using write-current variation In order to account for the misplacement of a write element during a servowriting process, the width of the information being written can be varied. In a self-servowriting disk drive, for example, the write current supplied to a read/write head can be adjusted to va... | 12/12/2006 |
| 7139142 | Determination of magnetic tape write quality employing write equalization transitions A signal sampler digitally samples magnetic signals detected by read head(s) of a magnetic tape drive, and a signal quality system extracts from the digital samples of a format required signal of the magnetic signals, such as a data set separator pattern, an estimat... | 11/21/2006 |
| 7130939 | Controlling and managing plurality of disk drives in disk enclosure having serial port wherein serial to parallel converters are connected to individual disk drives A disk enclosure is provided with a plurality of HDDs, an enclosure manager that outputs control and management information of the disk enclosure, and S/P converters that are provided for the respective HDDs. Each S/P converter converts a control and management comm... | 10/31/2006 |
| 7126778 | Process of dynamically adjusting the operating parameters of a computer storage device according to environmental conditions It has been discovered by the inventors that the efficiency and data integrity of a storage device can be improved by dynamically adjusting certain operating parameters to optimal values during the operation of the storage device. In one embodiment, the physical pro... | 10/24/2006 |
| 7123430 | Method and apparatus for providing write pre-compensation using a read timing path A method and apparatus for providing write pre-compensation using a read timing path is disclosed. The present invention generates a first phase clock signal having a first phase and being synchronized with a read signal of a read path, generates a second phase cloc... | 10/17/2006 |
| 7123429 | Method and apparatus for providing write pre-compensation using a read timing path A method and apparatus for providing write pre-compensation using a read timing path is disclosed. The present invention generates a first phase clock signal having a first phase and being synchronized with a read signal of a read path, generates a second phase cloc... | 10/17/2006 |
| 7104443 | Method and system for facilitating electronic funds transactions A method and system for executing electronic funds transactions using a merchant based debit (MBD) card in a merchant-centric system that provides for reduced fees to acquiring merchants and remitting a portion of the collected fees to issuing merchants. The system ... | 09/12/2006 |
| 7106543 | Methods for self-servowriting with multiple passes per servowriting step The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second... | 09/12/2006 |
| 7099105 | Systems for selective multi-pass servowriting and self-servowriting The amount of position error written into a servo burst pattern can be reduced by using additional media revolutions to write the pattern. Where the edges of two servo bursts are used to define a position on the media, trimming the first burst and writing the second... | 08/29/2006 |
| 7092179 | Write precompensation amount setting method and apparatus A write precompensation amount setting method and apparatus comprise a function detecting the respective head characteristics with an electric current used at an ordinary temperature and a irregular electric current, and a function setting an optimum write precompen... | 08/15/2006 |
| 7088536 | Magnetically recorded data reproduction apparatus and method thereof A magnetically recorded data reproduction apparatus that reproduces magnetically recorded data using a magnetoresistive head and method thereof. The recorded data are reproduced by a magnetoresistive head and supplied to a reproduction amplifier. A signal from an AG... | 08/08/2006 |
| 7085085 | Disk driving apparatus and method for operating disk driving apparatus A first delay circuit receives a sampling clock obtained by multiplying detected frequency of reference clock patterns and outputs delay clocks from first delay stages, respectively. Recording frequency of the sampling clock is not obtained using the reference clock... | 08/01/2006 |
| 7064592 | Method and apparatus for numeric optimization of the control of a delay-locked loop in a network device A method of setting a delay offset in slave Delay-Locked Loop (DLL) modules by a master DLL module is disclosed. The method includes determining whether a delay tap value needs to be adjusted based on a comparison with a reference clock signal, calculating a delay o... | 06/20/2006 |
| 7061283 | Differential clock driver circuit A system for driving a differential signal on a signal line and converting the differential signal from a rail-to-rail differential signal to a small signal differential signal is described. An exemplary embodiment of the circuit includes a first programmable differ... | 06/13/2006 |
| 7058555 | Predictor for optimal selective power transfer A predictor for optimal transducer power gain computes the maximum transducer power gain attainable by a lossless matching network for a given load operating over selected non-overlapping (disjoint) sub-bands within a frequency band of operation. ... | 06/06/2006 |
| 7028214 | Signal processing apparatus and a data recording and reproducing apparatus including local memory processor In a data recovery processing, the conventional overhead, primarily, latency due to a rotational recording media is removed. Secondary, in a signal processing or in a recording and reproducing apparatus, reliability of data reproduction is improved by repeatedly pro... | 04/11/2006 |
| 7027244 | Systems for self-servowriting using write-current variation In order to account for the misplacement of a write element during a servowriting process, the width of the information being written can be varied. In a self-servowriting disk drive, for example, the write current supplied to a read/write head can be adjusted to va... | 04/11/2006 |
