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Class Information
Number: 360/40
Name: Dynamic magnetic information storage or retrieval > General processing of a digital signal > In specific code or form
Description: Subject matter including generating a waveform from digital data or reproducing such a waveform, the frequency, shape, polarity or other characteristic thereof being indicative of the digital data.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616134 |
Systems and methods for enumerative encoding and decoding of maximum-transition-run codes and PRML (G,I,M) codes |
Nov. 10, 2009 |
| 7612959 |
Method for correcting added and lost bits in a hard disk drive using error correction codes |
Nov. 3, 2009 |
| 7583458 |
Channel optimization metrics |
Sep. 1, 2009 |
| 7457066 |
Method and apparatus for phase-shift null-burst-pattern |
Nov. 25, 2008 |
| 7433141 |
Data randomization for rewriting in recording/reproduction apparatus |
Oct. 7, 2008 |
| 7379452 |
Synchronous read channel |
May. 27, 2008 |
| 7372652 |
Correcting errors in disk drive read back signals by iterating with the Reed-Solomon decoder |
May. 13, 2008 |
| 7359132 |
Equalization preamble region in digital data storage (DDS) format |
Apr. 15, 2008 |
| 7286065 |
Method and apparatus for DC-level constrained coding |
Oct. 23, 2007 |
| 7253979 |
Method and device for data read/write, recording medium, and program product |
Aug. 7, 2007 |
| 7199955 |
Decoding apparatus and decoding method |
Apr. 3, 2007 |
| 7095340 |
Run-length violation detection circuitry and methods for using the same |
Aug. 22, 2006 |
| 7071851 |
Techniques for implementing non-uniform constraints in modulation encoded data |
Jul. 4, 2006 |
| 7064687 |
Techniques for modulating data using short block encoders |
Jun. 20, 2006 |
| 7042666 |
Disk drive having improved timing marks |
May. 9, 2006 |
| 7031085 |
Version tracking of disk write operations |
Apr. 18, 2006 |
| 6999259 |
Master disc and method of manufacturing the same |
Feb. 14, 2006 |
| 6992856 |
Systems for limiting channel control values to thereby improve servo-demodulation robustness |
Jan. 31, 2006 |
| 6992855 |
Methods for limiting channel control values to thereby improve servo-demodulation robustness |
Jan. 31, 2006 |
| 6961197 |
Correcting errors in disk drive read back signals by iterating with the Reed-Solomon decoder |
Nov. 1, 2005 |
| 6947232 |
User data wedge media certification apparatus and method |
Sep. 20, 2005 |
| 6930845 |
Data writing and reading |
Aug. 16, 2005 |
| 6922297 |
Double-attribute method of encoding and decoding magnetic data |
Jul. 26, 2005 |
| 6894855 |
Magnetic disk drive including read channel for processing differentiated read signal |
May. 17, 2005 |
| 6888480 |
Run-length violation detection circuitry and methods for using the same |
May. 3, 2005 |
| 6829306 |
Method and apparatus of converting a series of data words into a modulated signal |
Dec. 7, 2004 |
| 6819512 |
Triple-attribute method of encoding and decoding magnetic data |
Nov. 16, 2004 |
| 6775082 |
Digital VFO phase control device |
Aug. 10, 2004 |
| 6768603 |
Precompensation technique and MTR code for high data rate recording |
Jul. 27, 2004 |
| 6744580 |
Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data |
Jun. 1, 2004 |
| 6735028 |
Method and apparatus for increasing data storage capacity via phase and amplitude modulation |
May. 11, 2004 |
| 6731228 |
Method and apparatus of converting a series of data words into a modulated signal |
May. 4, 2004 |
| 6704154 |
Decoding apparatus and decoding method |
Mar. 9, 2004 |
| 6678103 |
Methods and apparatus for increased magnetic coding density by precise placement of magnetic transitions |
Jan. 13, 2004 |
| 6678104 |
Equalization pre-amble region in digital data storage (DDS) format |
Jan. 13, 2004 |
| 6657800 |
Viterbi detector and method for recovering a binary sequence from a read signal |
Dec. 2, 2003 |
| 6647445 |
Data transmission by an alternating frequency analog signal |
Nov. 11, 2003 |
| 6597526 |
Magnetic tape drive apparatus including a variable rate encoder |
Jul. 22, 2003 |
| 6577460 |
Method and apparatus for improving track format efficiency in a direct access storage device |
Jun. 10, 2003 |
| 6577255 |
Method and apparatus for encoding digital data |
Jun. 10, 2003 |
| 6553541 |
Reduced-complexity sequence detection |
Apr. 22, 2003 |
| 6549351 |
Auxiliary data encoding in a disk drive system |
Apr. 15, 2003 |
| 6532122 |
Data storage apparatus and magnetic recording method |
Mar. 11, 2003 |
| 6493161 |
Pulse-mode writer |
Dec. 10, 2002 |
| 6473252 |
Biphasic multiple level storage method |
Oct. 29, 2002 |
| 6441979 |
Apparatus for recording and reproducing digital information signals of different transmission rates |
Aug. 27, 2002 |
| 6430713 |
System and method for constructing low complexity block coders |
Aug. 6, 2002 |
| 6417788 |
High rate runlength limited codes for 10-bit ECC symbols |
Jul. 9, 2002 |
| 6414814 |
Method and apparatus for minimizing once per revolution positional errors in single disc servo track writing |
Jul. 2, 2002 |
| 6404573 |
Full and half-rate signal space detection for channels with a time-varying MTR |
Jun. 11, 2002 |
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