| Patents for H03H 21 - Adaptive networks (3,855) |
|---|
| 10/28/1993 | CA2131890A1 A method for avoiding self-oscillation in conjunction with echo cancellation |
| 10/26/1993 | US5257292 Circuit arrangement for influencing the frequency response of a digital audio signal |
| 10/20/1993 | EP0566362A2 Adaptive signal equaliser |
| 10/17/1993 | CA2066314A1 Automatic scsi termination |
| 10/13/1993 | EP0565479A1 Multi-channel signal separation using cross-polyspectra |
| 10/13/1993 | EP0564751A1 High-resolution digital filter |
| 10/12/1993 | US5252932 Waveform equalizing filter unit |
| 10/05/1993 | US5251237 Receiver for a digital transmission system |
| 09/30/1993 | WO1993019418A1 Method and apparatus for reduced-complexity viterbi-type sequence detectors |
| 09/30/1993 | DE4306638A1 Spatial noise reducing device for vehicle passenger compartment - generates and updates compensating noise to interfere with transmitted periodic spatial noise |
| 09/29/1993 | EP0561881A1 Compensating filters |
| 09/28/1993 | US5249040 Adaptive device for separating a luminance signal and a color signal |
| 09/23/1993 | DE4308923A1 Active noise reduction system for vehicle passenger compartment - uses control noise sources for adaptive noise cancellation under control of detected residual noise level |
| 09/22/1993 | EP0561133A1 Multi-channel echo cancellation with adaptive filters having selectable coefficient vectors |
| 09/22/1993 | EP0560945A1 Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media |
| 09/21/1993 | US5247541 Automatic equalizer for a data transmission channel |
| 09/21/1993 | US5247470 Method and apparatus for estimating signal components of a filter output |
| 09/21/1993 | US5247401 Replay equalization circuit in digital image recorder |
| 09/14/1993 | US5245561 Adaptive filter capable of quickly identifying an unknown system |
| 09/14/1993 | US5245556 Adaptive equalizer method and apparatus |
| 09/07/1993 | US5243624 Method and apparatus for updating coefficients in a complex adaptive equalizer |
| 09/01/1993 | EP0558312A1 Adaptive noise reduction circuit for a sound reproduction system |
| 08/19/1993 | WO1993016527A1 Method and apparatus for ghost cancelling and/or equalizing |
| 08/18/1993 | EP0555786A2 Active noise cancellation system |
| 08/17/1993 | US5237524 Method of low-pass filtering and arrangement for performing said method |
| 08/11/1993 | EP0554494A1 Non-recursive digital adaptive filter |
| 08/10/1993 | US5235647 Digital transmission system, an apparatus for recording and/or reproducing, and a transmitter and a receiver for use in the transmission system |
| 08/05/1993 | WO1993015501A1 Active noise cancellation |
| 08/04/1993 | EP0554120A2 Adaptive transversal equalizer |
| 08/03/1993 | US5233633 Automatic frequency control by an adaptive filter |
| 08/03/1993 | US5233550 Adaptive balance filter |
| 08/03/1993 | US5233548 Method and network configuration for attaining a continuous variation in the transfer function of an adaptive recursive network for processing discrete-time signals |
| 07/22/1993 | WO1993014566A1 Apparatus for reducing the risk of undesirable parameterdrift of an adaptive filter used for echo cancellation |
| 07/22/1993 | CA2125658A1 Apparatus for reducing the risk of undesirable parameter drift of an adaptive filter used for echo cancellation |
| 07/21/1993 | EP0552046A2 Complementary logic circuit |
| 07/20/1993 | US5230007 Method for optimizing an adaptive filter update coefficient |
| 07/20/1993 | US5230006 Adaptive equalizer capable of effectively removing a remaining fading in an equalized signal |
| 07/14/1993 | EP0551081A2 Adaptive equalizer and receiver |
| 07/14/1993 | EP0550990A2 Combined and simplified multiplexing with dithered analog to digital converter |
| 07/13/1993 | US5228058 Adaptive equalizer |
| 07/06/1993 | US5226057 Receiver and adaptive digital notch filter |
| 07/06/1993 | US5225836 Electronic filters, repeated signal charge conversion apparatus, hearing aids and methods |
| 06/30/1993 | EP0549019A2 Decision feedback equalisation system with low error propagation |
| 06/22/1993 | US5222084 Echo canceler having adaptive digital filter unit associated with delta-sigma modulation circuit |
| 06/15/1993 | US5220466 Method and apparatus for digital filter control in a partial-response maximum-likelihood disk drive system |
| 06/09/1993 | DE4241130A1 Producing two channel sound field - using successive addition and subtraction of initial front and rear left and right signals to obtain left and right channel signals for headphones |
| 06/08/1993 | US5218639 Method and apparatus for changing bit rate of digitized analog |
| 06/08/1993 | US5218621 Adaptive digital equalization filter |
| 06/08/1993 | US5218560 Circuit for controlling tap gains at rapid speed in an adaptive filter |
| 06/08/1993 | CA1318952C Adaptive digital filter and an echo canceler incorporating the same |
| 06/01/1993 | US5216721 Multi-channel active acoustic attenuation system |
| 06/01/1993 | US5216629 Adjusting filter coefficients |
| 06/01/1993 | US5216611 Integrated enroute and approach guidance system for aircraft |
| 06/01/1993 | US5216589 Adaptive apparatus |
| 05/26/1993 | EP0543568A2 High resolution filtering using low resolution processors |
| 05/25/1993 | US5214671 Adaptive equalizer |
| 05/25/1993 | US5214510 Adaptive digital aperture compensation and noise cancel circuit |
| 05/25/1993 | CA1318366C Hybrid stochastic gradient for convergence of adaptive filters |
| 05/18/1993 | CA1318003C Digital echo canceller |
| 05/12/1993 | EP0541225A1 Equalizer for data receiver apparatus |
| 05/11/1993 | US5210774 Adaptive equalization system and method for equalizing a signal in a dce |
| 05/05/1993 | EP0540216A1 Filter |
| 05/05/1993 | EP0539939A1 Active noise cancellation system |
| 04/29/1993 | WO1993008644A1 Element for filtering a regulating variable of a regulating system |
| 04/28/1993 | EP0539017A2 Adaptive frequency dependent compensation for telecommunication channels |
| 04/20/1993 | US5204683 Radar receiver for a radar having a digital beam forming antenna |
| 04/14/1993 | EP0536504A2 Accuracy bootstrapping |
| 04/07/1993 | EP0535403A1 Reception of TDMA digital data signal with compensation for channel variations |
| 04/06/1993 | US5200977 Terminal unit apparatus for time division multiplexing access communications system |
| 03/31/1993 | WO1993007688A1 Viterbi equalizer for radio receiver |
| 03/31/1993 | EP0534489A2 Fractional equaliser for use with a DFE |
| 03/30/1993 | USRE34205 Adaptive recognizing device |
| 03/30/1993 | US5199047 Receiver for a digital transmission system |
| 03/30/1993 | CA1315356C Digital adaptive filter and method of convergence therein |
| 03/23/1993 | US5197020 Wave digital filter composed of delays and n-port adaptors |
| 03/17/1993 | EP0532353A2 High-speed DFE with low residual fading |
| 03/17/1993 | EP0205526B1 Image filtering apparatus and method |
| 03/16/1993 | US5194832 Transversal equalizer |
| 03/10/1993 | EP0530423A1 Adaptive echo cancellation method and device for implementing said method |
| 03/03/1993 | EP0529585A2 Channel impulse response estimator for MLSE receiver for rapidly changing channels |
| 02/24/1993 | EP0528738A1 Method and circuit for adapting the coefficients in the equalizer of a modem |
| 02/23/1993 | US5189637 Method and apparatus for preventing erroneous echoelimination and equalization |
| 02/18/1993 | WO1993003544A1 Process for compensating for quasi-periodic disturbances of measurement signals |
| 02/17/1993 | EP0325590B1 Circuitry for converting measurement signals disturbed by a disturbance function into undisturbed signals |
| 02/16/1993 | US5187481 Method of correcting gain errors |
| 02/03/1993 | EP0525900A2 Filter circuit for preprocessing a video signal |
| 02/03/1993 | EP0525772A1 Method of and apparatus for identifying unknown system using adaptive filter |
| 02/03/1993 | EP0525456A1 System using plurality of adaptive digital filters |
| 02/03/1993 | EP0525408A2 Method for multiframe Wiener restoration of noisy and blurred image sequences |
| 01/27/1993 | EP0524597A1 Iterative method for reducing intersymbol interference |
| 01/27/1993 | EP0524560A2 Method and apparatus for updating coefficients in a complex adaptive equalizer |
| 01/27/1993 | EP0524231A1 Process and circuit arrangement for correcting the frequency response of a signal and/or affecting interference in a regulating circuit |
| 01/20/1993 | EP0523595A1 Realization of a normalized adaptive Schur-RLS-Lattice filter |
| 01/14/1993 | DE4121356A1 Separating specified signal mixt. esp. in radio transmission - supplying signal mixt., including possible interference signal, to signal evaluator |
| 01/13/1993 | EP0522528A1 A prediction filter |
| 01/13/1993 | EP0521868A1 Digital virtual earth active cancellation system |
| 01/12/1993 | US5179575 Tracking algorithm for equalizers following variable gain circuitry |
| 12/30/1992 | EP0520969A2 Maximum likelihood sequence estimation for a mobile digital cellular radio receiver |
| 12/29/1992 | WO1993000747A1 Automatic frequency control by an adaptive filter |
| 12/29/1992 | WO1993000741A1 A method for optimizing an adaptive filter update coefficient |