| Patents for H03H 17 - Networks using digital techniques (9,654) |
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| 02/17/1982 | EP0046121A2 Digital filters and application thereof to demodulation |
| 02/17/1982 | EP0046105A1 Fast digital operator device |
| 02/17/1982 | EP0045801A1 Digital pseudo continuous tone detector. |
| 02/10/1982 | EP0045596A2 Image processing filter |
| 02/09/1982 | CA1118104A1 Lattice filter for waveform or speech synthesis circuits using digital logic |
| 01/26/1982 | US4313195 Reduced sample rate data acquisition system |
| 01/21/1982 | WO1982000230A1 Arrangement for adjusting an adaptive digital balance filter included in a subscriber unit |
| 01/19/1982 | CA1116703A1 Digital filters with control of limit cycles |
| 01/19/1982 | CA1116702A1 Recursive type digital filter |
| 12/30/1981 | EP0042452A1 Signal processor computing arrangement and method of operating said arrangement |
| 12/29/1981 | CA1115355A1 Binary transversal filter |
| 12/24/1981 | WO1981003728A1 Subscriber line audio processing circuit apparatus |
| 12/24/1981 | WO1981003725A1 Interpolative analog-to-digital converter for subscriber line audio processing circuit apparatus |
| 12/24/1981 | WO1981003724A1 Interpolative encoder for subscriber line audio processing circuit apparatus |
| 12/15/1981 | CA1114461A1 Decimation, linear phase, digital fir filter |
| 12/15/1981 | CA1114460A1 Digital filter arrangement for non-uniformly quantized pcm |
| 12/10/1981 | WO1981003589A1 Switched-capacitor interpolation filter |
| 12/10/1981 | WO1981003587A1 Switched-capacitor cosine filter |
| 12/10/1981 | WO1981003566A1 Artificial reverberation generator |
| 12/08/1981 | US4305133 Recursive type digital filter |
| 12/08/1981 | US4305132 Method to eliminate the noise at known frequency |
| 12/01/1981 | US4303895 Automatic equalizer |
| 12/01/1981 | CA1113553A1 High pass switched capacitor filter section |
| 11/26/1981 | WO1981003392A1 Improvements in signal processing |
| 11/24/1981 | US4302817 Digital Pseudo continuous tone detector |
| 11/24/1981 | US4302631 Decimator apparatus for decreasing the word rate of a digital signal of the type employed in digital telephone systems |
| 10/13/1981 | CA1110769A1 Digital signal processing arrangement |
| 09/01/1981 | US4287595 Adaptive delta-modulation network |
| 08/26/1981 | EP0034241A2 Non-recursive digital filter |
| 08/20/1981 | WO1981002353A1 Digital pseudo continuous tone detector |
| 08/18/1981 | US4285045 Delay circuit |
| 08/04/1981 | US4282606 Broadcast delay line |
| 08/04/1981 | US4282579 Discrete Fourier transform system using the dual chirp-Z transform |
| 07/28/1981 | US4281318 Digital-to-digital code converter |
| 07/28/1981 | CA1106001A1 Frequency domain automatic equalizer using minimum mean square error correction criteria |
| 07/07/1981 | US4277834 Wave-signal-processing system with a two-dimensional recursive digital filter |
| 07/01/1981 | EP0031084A2 Charge transfer signal processing apparatus |
| 06/23/1981 | US4275268 Mixing apparatus |
| 06/23/1981 | CA1103798A1 Method and apparatus for eliminating deadband in digital recursive filters |
| 05/28/1981 | WO1981001464A1 Method and apparatus for obtaining derivatives of photometric signals |
| 05/27/1981 | EP0029239A1 Low-pass filtering circuit and method of using the same |
| 05/26/1981 | US4270209 Digital compressive receiver |
| 05/26/1981 | US4270026 Interpolator apparatus for increasing the word rate of a digital signal of the type employed in digital telephone systems |
| 05/05/1981 | US4266205 Resonator formed in integrated MOS technology utilizing switched capacitors |
| 04/28/1981 | US4264865 Method of delaying digital signals |
| 04/24/1981 | EP0020710A4 Digital filters with control of limit cycles. |
| 04/16/1981 | WO1981001088A1 Equalizer for complex data signals |
| 04/07/1981 | US4261051 Time-division-multiplexed exchanger |
| 04/07/1981 | CA1098971A1 Recursive-type digital filter |
| 03/31/1981 | US4259597 Charge transfer signal processing apparatus |
| 03/24/1981 | US4258340 Amplitude equalizer |
| 03/10/1981 | US4255794 Digital filter |
| 03/10/1981 | CA1097406A1 Recursive digital filter having means to prevent overflow oscillation |
| 02/17/1981 | US4251831 Filter and system incorporating the filter for processing discrete samples of composite signals |
| 02/11/1981 | EP0023555A1 Method and circuit for correcting the phase of the chroma component by digital comb filtering a PAL-television signal |
| 01/28/1981 | EP0023056A1 Arrangement having a non-recursive filter |
| 01/27/1981 | US4247940 Equalizer for complex data signals |
| 01/14/1981 | EP0022302A1 Decimation, linear phase, digital FIR filter |
| 01/07/1981 | EP0021317A2 Adaptive filter with TAP coefficient leakage |
| 01/07/1981 | EP0021018A1 Digital filters |
| 01/07/1981 | EP0020710A1 Digital filters with control of limit cycles. |
| 01/06/1981 | US4243959 Adaptive filter with tap coefficient leakage |
| 12/24/1980 | WO1980002897A1 Adaptive filter with tap coefficient leakage |
| 12/16/1980 | CA1091774A1 Non-recursive in-phase and quadrature discrete filter |
| 11/26/1980 | EP0019261A1 Adjustable attenuator for a digital telecommunication exchange, especially a telephone exchange |
| 11/26/1980 | EP0018983A1 Apparatus for and methods of digital processing |
| 11/25/1980 | US4236224 Low roundoff noise digital filter |
| 11/18/1980 | CA1089994A1 Offset compensating circuit |
| 11/04/1980 | US4232373 Compensation of fluidic transducers |
| 11/04/1980 | US4232192 Moving-average notch filter |
| 11/04/1980 | CA1089028A1 Filter and demodulation arrangement |
| 11/04/1980 | CA1089021A1 Arrangement for compensating carrier phase errors in a receiver for discrete data values |
| 10/28/1980 | US4231101 Digital filter arrangement for non-uniformly quantized PCM |
| 10/28/1980 | US4231100 Arrangement for filtering compressed pulse-code-modulated signals |
| 10/14/1980 | US4228517 Recursive filter |
| 10/14/1980 | CA1087693A1 Frequency domain automatic equalizer utilizing the discrete fourier transform |
| 09/17/1980 | EP0015681A1 Binary transversal filter |
| 09/16/1980 | US4223389 Recursive digital filter having means to prevent overflow oscillation |
| 08/06/1980 | EP0014151A1 Method of treating successive signal samples and digital filter for carrying out the method |
| 08/05/1980 | US4216463 Programmable digital tone detector |
| 07/29/1980 | US4215415 Recursive digital filter comprising a circuit responsive to first sum and feedback sign bits and second sum sign and integer bits for detecting overflow in the second sum |
| 07/29/1980 | US4215314 Dephaser circuit |
| 07/15/1980 | US4213187 Digital filters with control of limit cycles |
| 07/08/1980 | CA1081329A1 Frequency domain automatic equalizer having logic circuitry |
| 07/01/1980 | US4210872 High pass switched capacitor filter section |
| 06/26/1980 | WO1980001324A1 Digital filters with control of limit cycles |
| 06/24/1980 | US4209844 Lattice filter for waveform or speech synthesis circuits using digital logic |
| 06/24/1980 | US4209843 Method and apparatus for signal enhancement with improved digital filtering |
| 06/24/1980 | US4209836 Speech synthesis integrated circuit device |
| 05/27/1980 | CA1078521A1 Digital signal processing device |
| 05/27/1980 | CA1078463A1 Digital filter circuit |
| 05/20/1980 | US4204177 Non-recursive digital filter with reduced output sampling frequency |
| 04/29/1980 | CA1076661A1 Signal processing means and method |
| 04/22/1980 | US4199668 Circuit arrangement for signal equalization in wide-band transmission system |
| 04/22/1980 | CA1076262A1 Method and apparatus for determining the initial values of the coefficients of a complex transversal equalizer |
| 04/22/1980 | CA1076246A1 Noise reduction system |
| 03/25/1980 | US4195350 Method and apparatus for eliminating deadband in digital recursive filters |
| 03/11/1980 | US4193118 Low pass digital averaging filter |
| 03/06/1980 | WO1980000393A1 Apparatus for and methods of digital processing |
| 03/04/1980 | US4192008 Wave digital filter with multiplexed arithmetic hardware |