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"During my service in the United States Congress, I took the initiative in creating the Internet."
Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.
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| Number | Title | Issue Date |
| 8184390 | Data pattern dependent amplitude adjustment Data is processed by receiving data having a value. The amplitude of the received data is adjusted using the processor based at least in part on the value of the received data to obtain modified data. ... | 05/22/2012 |
| 7302749 | Method of making a two-layer lap winding for a multiphase electrical machine The method of making a two-layer lap winding (12) for a multiphase electrical machine includes the steps of winding a first coil unit (20) of a first phase winding (14) around a winding bar (10); subsequently laying a coil connector (1... | 12/04/2007 |
| 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 |
| 7250815 | Amplifier distortion management apparatus, systems, and methods An apparatus and a system, as well as a method and an article, may include detecting an indication of an amplifier output signal amplitude and responsively adjusting the amplifier input signal phase to reduce a change in the phase of the output signal. ... | 07/31/2007 |
| 7126771 | Data read channel and method of controlling the same A data read channel for receiving a signal containing a data stream of different types of data and recovering data therefrom, the channel comprising a main data read channel operable to output a stream of recovered data and a branch from the main data read channel c... | 10/24/2006 |
| 6894855 | Magnetic disk drive including read channel for processing differentiated read signal A disk drive of perpendicular magnetic recording method including a read head comprising a GMR element and a drive using a double-layered disk medium, is disclosed. In the magnetic field response characteristic of the GMR element, the relationship between the degree... | 05/17/2005 |
| 6647445 | Data transmission by an alternating frequency analog signal The present invention provides for the compression of digital and analog data for storage and transmission. Analog data in the form of an analog signal is converted into a digital signal by an analog-to-digital converter. The digital signal is then conver... | 11/11/2003 |
| 6476743 | Magnetic stripe reader A method for decoding information contained in a waveform having a series of peaks is disclosed which is particularly directed to a method for reading a magnetic stripe for example on a card that allows the information on the stripe to be read without the... | 11/05/2002 |
| 6124993 | Digital servo track format with leading and trailing identifiers A digital servo track pattern for a magnetic medium which can be recorded and reproduced by a recording and reproducing system. The servo track pattern has a plurality of digital mark patterns recorded thereon, each of said digital mark patterns having a ... | 09/26/2000 |
| 6021281 | Apparatus and method for recording information on a film A recording device for recording film information concerning photography made to each of a plurality of exposure areas on respective recordable areas corresponding to the plurality of exposure areas, includes: a film feeder which feeds the film; a recordi... | 02/01/2000 |
| 5623376 | Digital information restoring device including period detector A digital information restoring device is arranged to detect time between level transition points of a digital signal which indicates digital information by means of variations in its period, output the resultant period data, calculate an average value of... | 04/22/1997 |
| 5466920 | Real time decoding for card transaction terminal Real time decoding methods and apparatus for a card transaction terminal used for reading a magnetic stripe on a data card. The method is implemented in a microcomputer employed in the terminal. The data decode method for the microcomputer decodes data in... | 11/14/1995 |
| 5453603 | Method and apparatus for decoding bi-phase encoded data A method and apparatus are provided for decoding bi-phase encoded data. The apparatus performs the steps of establishing a predicted bit cell length for a bit cell, detecting a leading clocking edge transition of the bit cell, detecting a first edge trans... | 09/26/1995 |
| 5396370 | Process for evaluating binary data of a magnetic storage card A process of scanning and evaluating binary data stored on a magnetic track of a magnetic storage card includes a calibration at the beginning of the scanning operation with certain information stored on the card and a determination of a calibrated time i... | 03/07/1995 |
| 5305156 | Digital data storage apparatus comprising circuit for reducing read errors A hard disk drive is disclosed wherein data is so recorded on the disk that a transducer puts out a waveform having a positive peak followed by a negative peak for each bit representative of a logic one of the data. For eliminating the read error that wil... | 04/19/1994 |
| 5229894 | Method and apparatus for reading and decoding information using a magnetoresistive sensor In a method and apparatus for decoding data recorded on magnetic storage medium such as a "swipe card" to yield decoded data values, a magnetoresistive sensor is used to read the data as a pulse stream from the medium and to measure the widths of the rece... | 07/20/1993 |
| 5130863 | Digital signal recording apparatus for recording plural kinds of digital information signals having different respective bit rates In a digital signal recording apparatus it is possible to input plural kinds of digital information signals having different bit rates from one another. Recording is performed for each data block which includes a predetermined amount of data which include... | 07/14/1992 |
| 5128809 | Coherent multi-frequency synthesis Methods and circuitry for generating sector and data cell timing frequencies for banded variable frequency sector disc drive systems with dedicated plus embedded servo positioning systems which have the timing signals synchronized to servo track informati... | 07/07/1992 |
| 5003408 | Method and apparatus for removing data stream variations The specification discloses means for correcting timing variations present in a data stream emanating from a data storage device such as a magnetic tape drive or the like before the data stream is applied to the data separator or other such input device o... | 03/26/1991 |
| 4987500 | Self compensating high density data recording and detection scheme The present invention utilizes a dual frequency data writing scheme. At a first frequency, flux transitions are achieved which result in large excursions of the information signal. In the preferred embodiment, the first frequency approximates the maximum ... | 01/22/1991 |
| 4956831 | Low acoustic noise head actuator A disk drive system has a closed loop servo control system which is specially tuned for optimal deceleration during performance of a track access operation. The servo control system is returned in response to a track jump signal to perform a track jump op... | 09/11/1990 |
| 4876615 | Data decoding system A data decoding system for decoding a digital signal stored on a magnetic medium so that one of logical variables "1" and "0" is indicated by a state inversion of signals "H" and "L" at a time interval of a bit cell period, while the other logical variabl... | 10/24/1989 |
| 4837782 | CMI decoder In a digital communication system, a CMI (Coded Mark Inversion) decoder for extracting an optimum sampling timing from a CMI coded input signal so as to NRZ (Non-Return to Zero) format the input signal. A circuit for producing clock signals which are indi... | 06/06/1989 |
| 4821293 | Digital phase locked loop circuit A digital phase locked loop (PLL) circuit having an input terminal to which an input digital signal is supplied, a counter for counting a reference clock, a digital phase comparator for comparing the phases of the input digital signal and the output of th... | 04/11/1989 |
| 4809304 | Method of extracting a synchronous clock signal from a single- or double-density coded signal, and apparatus for performing the method The invention relates to a method for extracting a synchronous clock signal from a single- or double-density coded signal via a modulation frequency corresponding to the time interval T separating the most closely-spaced pulses of the received signal. Thi... | 02/28/1989 |
| 4809301 | Detection apparatus for bi-phase signals A bi-phase signal detection apparatus having a milti-tapped delay line to delay a coded input signal. A polarity change in the input signal loads the signal on each delay tap into a parallel shift register. A subsequent delayed polarity change will apply ... | 02/28/1989 |
| 4714968 | Digital apparatus for data recovery system A digital apparatus for data recovery system wherein data is recorded in FM or MFM code on magnetic media, comprises a measuring unit that in correspondence of a read pulse n as an input, supplies as an output, information related to the actual duration o... | 12/22/1987 |
| 4672483 | Information recording and reading apparatus having recording error checking circuit An information recording and reading apparatus for a recording medium, such as a magnetic disc or optical disc, which operates under the control of a central controller. The information recorded in the medium is stored in a memory and checked for errors d... | 06/09/1987 |
| 4651328 | Arrangement for supervising a CMI-code converter Arrangement for supervising a CMI-code converter in a PCM-multiplex transmission system, in which a binary signal is converted into a CMI-signal or vice versa, the code converter having a first terminal for the CMI-signal and a second terminal for the bin... | 03/17/1987 |
| 4628372 | Method and apparatus for identifying recorded information segments on a record medium Program segments on a magnetic tape are identified by recording patterns of continuous sine wave signal bursts and blank portions in non-recorded spaces between the program segments, the continuous sine waves all having the same low-frequency relative to ... | 12/09/1986 |
| 4553177 | Method and apparatus for recording data In the recording of information signals the signal elements of which are to have a prescribed length, a read/write head (WRT) is used in which the write gap (W1) is at a distance from the read gap (R) corresponding to the prescribed length. When a signal ... | 11/12/1985 |
| 4532559 | Apparatus for decoding phase encoded data Apparatus is disclosed for reading phase encoded digital data from a nine-track magnetic tape which apparatus includes timing circuitry for deriving a clock signal from the recorded data. A portion of the timing circuitry is associated with each track on ... | 07/30/1985 |
| 4503472 | Bipolar time modulated encoder/decoder system An encoder/decoder is described which allows data transmission on an A.C. coupled transmission system. The encoder converts a serial data stream comprised of combinations of logical "1"'s and "0"'s in an NRZ format to an output pulse train. The latter is ... | 03/05/1985 |
| 4481549 | MFM data encoder with write precompensation A circuit is provided for encoding digital data to be recorded on high-density magnetic storage media. The circuit converts serial data to modified phase modulation encoded serial data with time encoding or write precompensation.... | 11/06/1984 |
| 4473851 | Analog magnetic recording system for binary signals Digital data is recorded onto a cassette tape by utilizing an audio cassette tape recorder under the control by a microprocessor. The microprocessor assigns "0" digital data bit a time sequence of a shorter pulse of a single period (T1) and hav... | 09/25/1984 |
| 4470081 | Controlled return to A.C. digital magnetic and reproducing system The Controlled Return to A.C. (CRA) magnetic recording and reproducing system applies a high frequency erase signal continuously to the write head except at the detents. At the detents polarity controlled interruptions of the high frequency erase signal a... | 09/04/1984 |
| 4462051 | Demodulator for an asynchronous binary signal To decode a binary signal without regard to the speed at which it is read, each transition in the binary signal is detected, and the time lapse between successive transitions is determined to thereby establish the length of a pulse in the binary signal. T... | 07/24/1984 |
| 4459623 | Method and apparatus for recovering NRZ information from MFM data An all digital method and apparatus for recovering NRZ information from MFM data wherein the MFM pulse stream is monitored through hypothetical windows, the receipt of a pulse during a particular window providing information about the data state(s) repres... | 07/10/1984 |
| 4453157 | Bi-phase space code data signal reproducing circuit A bi-phase space code data signal reproducing circuit comprises a clock pulse supplying circuit for supplying a clock pulse having a period which is 1/N (N is an integer) of a bit period T of a bi-phase space code data signal to be reproduced, a shift reg... | 06/05/1984 |
| 4441193 | Frequency-encoding circuit for reducing distortion An electronic circuit produces a composite signal in which a low frequency component signal is followed by a high frequency component signal such that the composite signal resists transmission line distortion. To that end, the circuit generates the half-c... | 04/03/1984 |
