Celebrity Inventors
Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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 |
| 8174949 | Systems and methods for format efficient timing recovery in a read channel Various embodiments of the present invention provide systems, methods and media formats for processing user data derived from a storage medium. As an example, a system is described that includes a storage medium with a series of data. The series of data includes a s... | 05/08/2012 |
| 8089845 | Offset compensator and optical disc drive using the same The generation of a pseudo-lock is prevented in a JFB offset compensator whose use has been conventionally limited due to a tendency to generate the pseudo-lock, and performance degradation of a PLL and a Viterbi decoder is suppressed. A means for monitoring an offs... | 01/03/2012 |
| 8064310 | Optical disk recording device which detects pre-pit distribution and shifts recording position accordingly An optical disk recording device that detects a shift of the recording position with respect to an optical disk, has a pre-pit distribution detecting circuit that detects the distribution of pre-pits for a plurality of wobbles based on binarized pre-pit signals obta... | 11/22/2011 |
| 8040777 | Information recording method, information recording medium and information recording apparatus An information recording method using a recording medium includes forming a plurality of recording pulses in accordance with both a reference waveform having been stored in the recording medium and data regarding a shifting value relying on material of the recording... | 10/18/2011 |
| 8000200 | HFM enable control system A modulation control system for use with a high frequency modulator is described. This system comprises a latch for selectively receiving enable signals, wherein the latch transmits a latched signal in response to receiving at least two of the enable signals; a sele... | 08/16/2011 |
| 7974169 | Wobble channel clocking Devices, systems, methods, and other embodiments associated with wobble channel clocking are described. In one embodiment, an apparatus implemented with a clock generator, a clock scaling logic, radio frequency channel logic, and wobble channel log. The clock genera... | 07/05/2011 |
| 7835244 | Optical disc apparatus and ADIP decoder An ADIP decoder for decoding address in pre-groove (ADIP) of a wobble of an optical disc, has: a band pass filter that filters a wobble signal having a period corresponding to the wobble; a wobble PLL circuit that divides a frequency of a phase-locked clock signal i... | 11/16/2010 |
| 7817522 | Recording clock generation apparatus There is provided an optical disc recording apparatus containing a small-area circuit that is adaptable to both of the formats of DVD-R/RW and +RW/+R standards. The apparatus is provided with a circuit (106) for converting a 32T-cycle binarized wobble ... | 10/19/2010 |
| 7590041 | Playback signal processing device In a playback signal processing device for extracting, from an analog playback signal, playback data and a clock synchronized with the playback data, a digital equalizer 2 is disposed outside a clock extraction loop formed by an interpolator 3, a timin... | 09/15/2009 |
| 7535810 | Data reproduction apparatus A fast synchronization pull-in and an optimum error correction are achieved in a reproduction apparatus for reproducing data recorded on a recording medium even in the case where the quality of input data involving a seek or defect is low. A seek amount detection bl... | 05/19/2009 |
| 7496022 | Method and apparatus of adjusting phase of a sampling clock and prediction timing of a synchronization signal through a disc signal A detection apparatus of an optical storage device for detecting a synchronization signal includes a sampling module for sampling a disc signal to generate a plurality of sampled data, a comparing module coupled to the sampling module for comparing the sampled data ... | 02/24/2009 |
| 7436747 | Detector and method for detecting synchronization signals in disc system A detector and a method for detecting synchronization signals in a disc system are disclosed. The method includes sampling a disc signal with a sampling clock to generate a plurality of sampled data, comparing the plurality of sampled data with a predetermined synch... | 10/14/2008 |
| 7433286 | Jitter detection apparatus In a jitter detection apparatus, a playback RF signal 3 detected from an optical disc medium 1 is subjected to waveform shaping, and thereafter, converted into a digital RF signal 6 with a sampling clock having a cycle twice as long as a cycle o... | 10/07/2008 |
| 7430158 | Music player with adjustable pitch controller A media player having variable pitch is disclosed. The player incorporates a memory buffer that is responsive to a user-designated pitch adjustment. The result is that a user can manually control and adjust the pitch of prerecorded CDs and MP3s or other digital medi... | 09/30/2008 |
| 7426160 | Device for detecting position information from an optical record carrier An optical record carrier (1) is provided with tracks having a groove (4) wobbled in a transverse direction and predetermined positions (18) along the track. The wobble comprises a substantially monotonous undulation (15). Local excursion... | 09/16/2008 |
| 7408871 | Optical disc with wobbled tracks and apparatus using this optical disc Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is the ... | 08/05/2008 |
| 7400569 | Optical disc with wobbled tracks and apparatus using this optical disc Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is the ... | 07/15/2008 |
| 7385900 | Reproducing apparatus A transversal filter subjects a reproduced signal to partial-response waveform equalization responsive to tap coefficients to generate an equalization-resultant signal. There is generated 0-point information representing whether or not the reproduced signal correspo... | 06/10/2008 |
| 7366271 | Clock and data recovery device coping with variable data rates A clock and data recovery (CDR) device is disclosed that is capable of recovering a clock signal from a data signal that has a variable data rate. The CDR device includes a reference clock generating section for dividing a basic clock by a first predetermined value ... | 04/29/2008 |
| 7349302 | Optical disk recording apparatus and optical disk recording method For protecting the recording from shifting in the position, by conducting sync detection, correctly, from land pre pits, in an optical type recording disc, even if sync pattern errors, in more detail, synchronization is conducted on a recording circuit, with certain... | 03/25/2008 |
| 7337216 | Electronic system architecture An electronic system architecture comprises a plurality of client devices connected in a hierarchical structure in which the client devices form nodes in the structure interconnected by communications links. One client device at the top of the hierarchical structure... | 02/26/2008 |
| 7333578 | Linear data recovery phase detector An input data sequence is sampled according to a sampling clock such that a first set of samples corresponds to data values and a second set of samples corresponds to edges between the data values. The phase error between data transitions in the input sequence and t... | 02/19/2008 |
| 7310296 | Method for decoding address in pre-groove data of an optical disc drive A method for optical drive decoding of address in pre-groove (ADIP) data is provided to decode an input wobble signal to an ADIP unit signal. The method includes generating a wobble carrier frequency signal having the same phase with the wobble signal, multiplying t... | 12/18/2007 |
| 7295559 | Clock synchronization over a packet network using SRTS without a common network clock A method for recovering a service clock through a packet network for the provision of isochronous services uses a two-layer arrangement wherein stable oscillators are provided at the transmitting and receiving nodes. ACR is used to tune the local oscillators over a ... | 11/13/2007 |
| 7292513 | Method of correcting clock of compact disk and circuit thereof A circuit for correcting a clock of a compact signal and a method therefor. The method comprises: receiving a data signal and a clock signal; and generating a sync pattern signal by using the clock signal to check the data signal. Then, a detection window signal acc... | 11/06/2007 |
| 7274645 | Reproduction signal processing apparatus and optical disc player including the same A reproduction signal processing apparatus includes: a reproduction unit, an A/D converter for sampling a reproduction signal to obtain a multi-bit digital signal, a phase-locked loop controller for outputting a reproduction clock that is in phase with clock compone... | 09/25/2007 |
| 7272093 | Apparatus for controlling an optical disk drive by calculating a target frequency of a DPLL signal A control circuit for an optical disk drive includes a frequency detector, a phase detector, a low pass filter, a voltage-controlled oscillator (VCO), and a controller. The frequency detector and the phase detector both receive an eight-to-fourteen modulation (EFM) ... | 09/18/2007 |
| 7263048 | Method for decoding disc information A pre-treating circuit for accessing the disc and a method thereof, which are especially used for treating the signal waveform that violates the encoding rule of the disc information, are provided. The present invention can modulate the signal waveform that violates... | 08/28/2007 |
| 7257066 | Data defect detection using soft decision result A defect detection device for detecting a defect of data recorded on a recording medium includes a waveform state detection part generating information representing a state of a waveform of a reproduced signal from the recording medium based on soft decision results... | 08/14/2007 |
| 7242658 | Apparatus to generate a bit clock and a method of generating the bit clock An apparatus and a method to accurately generate a bit clock synchronized with digital data. The apparatus includes an edge detecting unit, a first edge counter, a second edge counter, a first counter, and a bit clock generating unit. The edge detecting unit detects... | 07/10/2007 |
| 7242651 | Disk reproduction device The invention provides a disk playback device wherein a disk (1) is irradiated with a laser beam from an optical head (4) to reproduce signals from the disk, and which comprises an external synchronizing signal producing circuit (8) and a delay ... | 07/10/2007 |
| 7230897 | Defect detection device The defect detection device includes: an amplification section for amplifying a reflection signal corresponding to the intensity of light reflected from an optical disc according to a control signal indicating recording or playback; an envelope detection section for... | 06/12/2007 |
| 7224838 | Method and apparatus for recovery of encoded data using central value The present invention provides a method for comprising data by determining a central value that is greater than the minimum value and less than the maximum value of the range of data. In one embodiment, the central value is chosen to be a value that substantially re... | 05/29/2007 |
| 7224663 | Optical recording medium, method of recording information to an optical recording medium, and information recording apparatus It is an object of the present invention to provide a method of recording information to an optical recording medium that is suited to achieving high data transfer rates. The optical recording medium according to the present invention comprises a method of re... | 05/29/2007 |
| 7221295 | High speed serializer-deserializer A high speed serializer-deserializer (SerDes) that passes significantly more data through a channel for a given analog bandwidth and signal-to-noise ratio. This SerDes technique involves converting a plurality of bits to be transferred to positions of edges of a wav... | 05/22/2007 |
| 7212596 | Data detection circuit and method A data detection circuit and method detect a first bit that is the least significant among bits having a value 1 in N-bit input binary data and a second bit that is the second least significant among bits having the value 1 in the N-bit input data. The data detectio... | 05/01/2007 |
| 7200093 | Method and related apparatus for decoding information carried by wobble signals An apparatus for generating a wobble clock includes an operation circuit for receiving a wobble signal and counting cycles of an oscillating signal during a cycle of the wobble signal to derive a cycle value and for comparing the cycle value with a preset cycle valu... | 04/03/2007 |
| 7200081 | Write strategy circuit, write strategy method, and optical disk apparatus A write strategy circuit and a write strategy method for capturing data are disclosed. A strategy clock generator generates a strategy clock signal based on a channel clock signal. A phase controller produces a capturing channel clock signal by controlling a phase o... | 04/03/2007 |
| 7197000 | Method of generating an efficient sequence of multi-level random numbers used for an information recording medium A method of generating an efficient sequence of “nm+m−1” level random numbers, each sub-sequence of “m” successive random numbers thereof having a different pattern, including the steps of generating a sequence of n-level random numbers b... | 03/27/2007 |
| 7193951 | Disk device and method for controlling threshold value of disc device A disk apparatus (10) includes a spindle (62) to which a magnetooptical disk (60) is attached. An FCM is formed on the magnetooptical disk (60) along a track at intervals of a predetermined period, a laser beam having a different light am... | 03/20/2007 |
