Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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 |
| 7982985 | Method and apparatus for adapting a finite impulse response equalizer in a hard disk drive read channel A method and apparatus for adapting an FIR equalizer in a hard disk drive read channel which determines again direction and/or a phase direction of an FIR response c of the FIR equalizer, and calculates a constraint so that the update does not change the FIR respons... | 07/19/2011 |
| 7859778 | Deterministic phase mismatch correction in servo position estimation systems A method includes estimating a phase difference between components of a position signal in a servo position estimation system, and correcting the phase difference of the components of the position signal to provide a phase-compensated position signal. ... | 12/28/2010 |
| 7278069 | Data transmission apparatus for high-speed transmission of digital data and method for automatic skew calibration A data transmission apparatus and method employing the phase noise characteristics within the receiving registers to measure and control the characteristics of the channel as a function of the data pattern and to compensate for production tolerances within the chann... | 10/02/2007 |
| 7245686 | Fast skew detector Signal processing apparatus, including a circuit which processes signals received on multiple channels so as to extract therefrom at least first and second sequences of symbols, and a FIFO, which receives and stores at least one bit of each of the symbols in a first... | 07/17/2007 |
| 7219270 | Device and method for using a lessened load to measure signal skew at the output of an integrated circuit A device and method are provided for testing the timing of an output signal from a circuit. The output signal can be sent from a circuit contained within a portion of an integrated circuit, and represents a response to a test pattern or stimuli applied to that circu... | 05/15/2007 |
| 7155654 | Low complexity error concealment for wireless transmission An apparatus and method for concealing errors in digital data. An interpolator estimates a value of a sample of digital data from other samples of the digital data. The interpolator has an input for inputting the digital data and an output for outputting the estimat... | 12/26/2006 |
| 7149950 | Assisted memory device for reading and writing single and multiple units of data A device comprises a memory array in which a plurality of codewords is stored. Each codeword comprises an error correction code and a data block that comprises a plurality of units of data. The device further comprises an error code correction module coupled to the ... | 12/12/2006 |
| 7143332 | Methods and structures for providing programmable width and error correction in memory arrays in programmable logic devices A random access memory (RAM) in a programmable logic device (PLD) supports error correction as well as a configurable data width. The number of bits in a user data word varies by the selected configuration of the RAM, while the number of bits in the error correction... | 11/28/2006 |
| 7130317 | Method and circuit for de-skewing data in a communication system Method and circuitry for de-skewing data in data communication networks such as a SONET. The data is sent from a system chip to a framer chip where the data is de-skewed. To detect data skew, the system chip sends a training sequence to the framer chip. The informat... | 10/31/2006 |
| 7032140 | Method and system for synchronization in the presence of thermal asperity A method (and system) of finding byte synchronization over random data, which includes selecting a synchronization symbol maximizing the Hamming distance when slid over itself, and appending the synchronization symbol to random data. ... | 04/18/2006 |
| 7020729 | Protocol independent data transmission interface Transmitting data across a scalable, flexible speed, serial bus in a communication protocol independent manner. ... | 03/28/2006 |
| 7017065 | System and method for processing information, and recording medium To provide an integrated information processing unit that is capable of producing images and sounds of high quality. It includes a control unit, information processing units, and a merge unit. Each of the information processing units includes a counter for synchroni... | 03/21/2006 |
| 6980385 | Apparatus for information recording and reproducing In order to generate a sampling clock having a higher accuracy, a synchronous signal generating circuit is provided with a phase error detector, detecting a phase error of a read out signal digitized on the basis of FDTS algorithm, and a VCO, controlling an oscillat... | 12/27/2005 |
| 6970435 | Data alignment compensator An apparatus and method that correct skew associated with data receive from different transmission links. A known training pattern is sent through the transmission links. The training pattern is recovered and forwarded through delay registers/selecter logic to a mem... | 11/29/2005 |
| 6956709 | Write velocity identification in a PRML system A tape drive and method of identifying write velocity during reading are provided. When a track is being read, a lead-in code of the data signal is processed prior to determining the data stream. The lead-in code identifies the velocity with which the track data wer... | 10/18/2005 |
| 6915462 | Method and apparatus for a programmable deskew circuit An invention is provided for a deskewer that corrects skew on a data channel. The deskewer includes a delay calculator that calculates deskew data indicating the amount of delay needed to correct skew on a data channel. Coupled to the delay calculator is a deskew ci... | 07/05/2005 |
| 6791776 | Apparatus for information recording and reproducing In order to generate a sampling clock having a higher accuracy, a synchronous signal generating circuit is provided with a phase error detector, detecting a phase error of a read out signal digitized on the basis of FDTS algorithm, and a VCO, controlling an oscillat... | 09/14/2004 |
| 6747826 | Clock recovery apparatus A reproduction signal 10 is processed in an AD converter 4 and an equalizer 16 to be a decoder input signal 12. The decoder input signal 12 is used to calculate a phase error signal 25 and a quality judgement signal 26 | 06/08/2004 |
| 6738206 | Decision error compensation technique for decision-directed timing recovery loop A circuit for use in a phase lock loop including a first phase detector to detect a first phase error between input signals, the first phase detector obtaining the first phase error during a first time period, a second phase detector to detect a second phase error b... | 05/18/2004 |
| 6560053 | Clock recovery apparatus A reproduction signal 10 is processed in an AD converter 4 and an equalizer 16 to be a decoder input signal 12. The decoder input signal 12 is used to calculate a phase error signal 25 and a quality judgement signal 26. A phase-frequency error detection c... | 05/06/2003 |
| 6173022 | Synchronizing audio signal samples taken at different sampling rates Audio signal samples taken at different sampling rates are synchronized. A plurality of channels of audio data are sampled at different rates and recognizable synchronization data are added to selected samples of at least one channel of the plurality of c... | 01/09/2001 |
| 5986834 | Clock circuit for the reading of sequentially recorded information elements in a multitrack recording system A clock circuit for the reading of sequential information elements includes a phase-locked loop for the control of the controlled oscillator. In the case of a reading system with n tracks, the phase computation circuit, the digital filter and the controll... | 11/16/1999 |
| 5938791 | Device for detecting margin of information recording and reproducing apparatus An information recording and reproducing apparatus provided with the maximum likelihood decoding utilizes a standard deviation of difference metrics as an estimating function for adjustment for the purpose of achieving a short-time adjustment with a small... | 08/17/1999 |
| 5909329 | High-speed video printer with tracking adjustment of slave tape A video printer for printing a magnetic pattern of a master tape on a slave tape comprises a read head for reading a control signal printed on the slave tape, a phase shift circuit for shifting a phase of the control signal read by the read head, and a wr... | 06/01/1999 |
| 5841597 | Divided master tape production device, dubbing device and dubbing system which is equipped with these devices A high-speed dubbing system which is not a complicated system adjusts phase shifts to return a plurality of multiple divided master tape audio signals to a time series signal array which is the same as that of the original master tape signal. The dubbing ... | 11/24/1998 |
| 5530599 | Apparatus for compensating a delay time of time code signal used in a digital audio tape recorder A digital tape recorder is provided in which main digital signals and time code signals are recorded on a magnetic tape after realization of the timing concurrence between these signals. To this end, a delay correction circuit 23 for delaying the input ti... | 06/25/1996 |
| 5513051 | Image signal recording and reproducing apparatus having a quasi-fixed head An image signal recording and reproducing apparatus comprises a head array having a plurality of head gaps for recording and reproducing the image; a piezoelectric actuator having a polarization direction and for moving the head array downwards and upward... | 04/30/1996 |
| 5442491 | Synchronizing data tracks using global force windows and track sync counters in a multitrack tape device A method and apparatus which first calculates track to track skew in a tape device and then uses the results of that calculation to adjust the windows for detection of sync and resync characters. The system makes use of global circuitry which adjusts the ... | 08/15/1995 |
| 5424880 | Information signal recording and reproducing apparatus capable of automatically adjusting phase variations An information signal recording and reproducing apparatus having a reproducing head at a position anterior to a recording head by a distance corresponding to a predetermined time interval for recording an information signal on a recording medium and repro... | 06/13/1995 |
| 5416809 | Digital phase locked loop apparatus A digital phase-locked loop circuit for compact discs is provided. Averaging circuits are used to determine the wavelength of each pattern in an eight-to-fourteen modulation signal reproduced from a given compact disc by computing an average value of the ... | 05/16/1995 |
| 5357380 | Method and apparatus for indicating when each track is in burst in a multitrack tape device A method and apparatus which first calculates track to track skew in a tape device and then uses the results of that calculation to adjust the windows for detection of sync and resync characters. The system makes use of global circuitry which adjusts the ... | 10/18/1994 |
| 5347517 | Information processing apparatus An information processing apparatus having the function of reproducing digital information recorded on a recording medium has binarizing circuit for transforming a reproduction signal read from the recording medium into a binary signal, circuit for making... | 09/13/1994 |
| 5345344 | System and method for removing noise when switching between heads in a digital video cassette recorder Audio playback system and method for a Hi-Fi VCR capable of preventing an occurrence of noise when audio heads are switched. When an azimuth occurs with respect to each arrangement angle of audio heads or when one of audio signals played back audio heads ... | 09/06/1994 |
| 5276528 | Color video signal recorder A color video signal recorder is arranged to record on one and the same recording medium first and second signals which are obtained by frequency dividing at different phases the frequency modulation wave of a frequency modulated color video signal which ... | 01/04/1994 |
| 5218486 | Correction of long term drift and short term fluctuating corruption of a signal An arrangement to remove drift and wow and flutter in a tape recording comprising recording a control signal tone derived from a reference clock (159) in a dedicated control channel or embedded in a signal channel. The control signal on playback (151) is ... | 06/08/1993 |
| 5109303 | Apparatus for accurate time alignment of signal data derived from multiple channels Apparatus is disclosed for adding a calibration signal with known phase-timing relationships to identify a time of onset for each input channel being monitored separately. A signal generator produces alignment signals which are introduced to a switch netw... | 04/28/1992 |
| 5029021 | Video recording/reproducing apparatus and method of editing video tape A video recording/reproducing apparatus comprises a variable delay circuit for delaying an input video signal which is to be newly recorded on a recording medium and a delay controller for controlling a delay provided by this variable delay circuit. At th... | 07/02/1991 |
| 5019919 | Apparatus for recording and reproducing divided signals of an angle modulated signal A recording and/or reproducing apparatus is arranged to simultaneously record on a recording medium a plurality of divided signals which are inverted at different timing points from each other according to the inverting timing of an angle modulated inform... | 05/28/1991 |
| 4956720 | Jitter control circuit having signal delay device using CMOS supply voltage control A signal delay device comprises a CMOS gate circuit having an input terminal to which a binary input signal to be delayed is applied, an output terminal from which a delayed signal is derived and power voltage supply terminals to which operation power vol... | 09/11/1990 |
| 4954911 | Reproducing apparatus having a mechanism for compensating time-base fluctuations A reproducing apparatus for reproducing a recording from a record bearing medium on which a plurality of different pilot signals having different frequencies are recorded in rotation along with an information signal, one in each of recording tracks of the... | 09/04/1990 |
