СПИСОК патентов США - подгруппа МПК16 H04L27/144
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9602153 | Radio receiving apparatus for receiving frequency-modulated radio signal | |||
2016 | |||||
| 2 | 9455851 | Efficient encoding/decoding algorithm for MTS constrained MFSK communications | |||
| 3 | 9450793 | Device and method of sequence detection for frequency-shift keying | |||
| 4 | 9407204 | Method for processing a frequency-modulated analog signal and corresponding device | |||
| 5 | 9385816 | Methods and arrangements for frequency shift communications by undersampling | |||
| 6 | 9270503 | Methods, devices and systems for receiving and decoding a signal in the presence of noise using slices and warping | |||
2015 | |||||
| 7 | 9225567 | Receiving apparatus and demodulation method | |||
| 8 | 9136813 | Wireless network receiver | |||
2010 | |||||
| 9 | 7860197 | Spectrum-sensing algorithms and methods | |||
2008 | |||||
| 10 | 7330523 | Estimating frequency offset | |||
2006 | |||||
| 11 | 7058140 | Sliding-window multi-carrier frequency division multiplexing system | |||
| 12 | 6989710 | Binary frequency-shift keying demodulator and frequency-to-voltage converter | |||
2005 | |||||
| 13 | 6968019 | IF FSK receiver | |||
| 14 | 6907089 | Digital demodulation and applications thereof | |||
| 15 | 6904538 | System and method for differential data detection | |||
| 16 | 6888902 | Digital variable frequency oscillator | |||
2004 | |||||
| 17 | 6801590 | Method and apparatus for symbol independent discriminator correlator automatic frequency control | |||
| 18 | 6785347 | Nonlinear-least squares based method and apparatus for FSK signal decoding | |||
| 19 | 6775324 | Digital signal modulation system | |||
| 20 | 6762642 | Method and apparatus for frequency shift-keying demodulation and applications thereof | |||
| 21 | 6724836 | Detection of signals transmitted by frequency-shift keying modulation techniques | |||
| 22 | 6703896 | Method and demodulator for FSK demodulation, and receiver including such a demodulator device | |||
| 23 | 6697439 | Carrier acquisition in a DC/MA system | |||
2003 | |||||
| 24 | 6671332 | Zero IF receiver with reduced AM detector | |||
| 25 | 6639458 | FM demodulator capable of providing demodulated data with high determination accuracy | |||
| 26 | 6603820 | Demodulator having rotation means for frequency offset correction | |||
| 27 | 6570946 | One-hot decoded phase shift prescaler | |||
| 28 | 6570938 | Method and apparatus for recovering data symbols from a signal received by a radio communication device | |||
| 29 | 6566940 | Method and apparatus for frequency shift-keying demodulation and applications thereof | |||
| 30 | 6563887 | Direct conversion receiver for frequency-shift keying modulated signals | |||
| 31 | 6553083 | Frequency control and orthogonal detection circuit and FSK receiver | |||
2002 | |||||
| 32 | 6498568 | Pipeline communication system | |||
| 33 | 6493406 | Method and apparatus for symbol independent discriminator correlator automatic frequency control | |||
| 34 | 6487260 | Method and apparatus for efficient correlation detection | |||
| 35 | 6437693 | FSK receiver | |||
| 36 | 6433591 | Frequency-voltage conversion circuit and receiving apparatus | |||
| 37 | 6408035 | Simplified receiver for frequency shift keyed signals | |||
| 38 | 6359942 | FSK demodulator | |||
| 39 | 6351498 | Robust digital modulation and demodulation scheme for radio communications involving fading | |||
2001 | |||||
| 40 | 6332007 | Automatic frequency control in FSK receiver using voltage window deviation | |||
| 41 | 6323727 | Apparatus and method for detecting digital FM | |||
| 42 | 6263014 | Method and apparatus for correlation detection of multi-level signals with non-standard deviations | |||
| 43 | 6252438 | Frequency-voltage conversion circuit and receiving apparatus | |||
2000 | |||||
| 44 | 6144253 | Digital FSK demodulator | |||
| 45 | 6104238 | FM demodulator including tuning of a filter and detector | |||
| 46 | 6085073 | Method and system for reducing the sampling rate of a signal for use in demodulating high modulation index frequency modulated signals | |||
| 47 | 6072992 | High-frequency device | |||
| 48 | 6055282 | Digitally sampled phase quantized FM detector for a communication receiver | |||
| 49 | 6052571 | Tuner for PSK or PAM data applications | |||
| 50 | 6047033 | Apparatus and method for signal timing error detection | |||
| 51 | 6046628 | Demodulating device comprising a small circuit and a small consumption power | |||
| 52 | 6038268 | Direct conversion FSK signal radio receiver | |||
| 53 | 6020839 | Analog technique to detect asymmetric radio frequency pulses | |||
| 54 | 6018553 | Multi-level mixer architecture for direct conversion of FSK signals | |||
| 55 | 6011816 | Direct demodulation method and apparatus | |||
1999 | |||||
| 56 | 5994953 | Apparatus and method for detecting digital FM | |||
| 57 | 5974094 | FFT receiver for MFSK | |||
| 58 | 5960042 | Method in a selective call receiver for synchronizing to a multi-level radio signal | |||
| 59 | 5960040 | Communication signal processors and methods | |||
| 60 | 5953373 | Equalizing circuit and method for data communication terminal equipment | |||
1998 | |||||
| 61 | 5852638 | Method and apparatus for demodulating a symbol using symbol fragmentation, correlation and fourier analysis | |||
| 62 | 5828708 | CID demodulator for DCT | |||
| 63 | 5818296 | FSK demodulator using goertzel's discrete fourier transform | |||
| 64 | 5796787 | Receiver and method thereof | |||
| 65 | 5748036 | Non-coherent digital FSK demodulator | |||
| 66 | 5729577 | Signal processor with improved efficiency | |||
1997 | |||||
| 67 | 5703908 | Fixed reference shift keying modulation for mobile radio telecommunications | |||
| 68 | 5668749 | Circuit for performing arithmetic operations in a demodulator | |||
| 69 | 5663989 | Control arrangements for digital radio receivers | |||
| 70 | 5640428 | Direct conversion receiver | |||
| 71 | 5633898 | Automatic frequency control apparatus for FSK receiver and FSK receiver including the same | |||
| 72 | 5612976 | Detectors | |||
| 73 | 5612617 | Frequency detection circuit | |||
1996 | |||||
| 74 | 5583785 | Method and apparatus for signal decoder using instantaneous magnitude and phase detection | |||
| 75 | 5581579 | Method and apparatus to adaptively control the frequency of reception in a digital wireless communication system | |||
| 76 | 5572588 | Method and apparatus for detecting reception of a tone signal | |||
| 77 | 5557637 | Convolutional ambiguity multiple access (CAMA) transmission system | |||
| 78 | 5550865 | Frequency modulator for data transceiver | |||
| 79 | 5548619 | Radio receiver apparatus of orthogonal detection type comprising local oscillator means with improved automatic frequency control arrangement | |||
| 80 | 5539355 | Frequency-shift-keying detector using digital circuits | |||
| 81 | 5533056 | Data encoder/decoder for data transceiver | |||
| 82 | 5530723 | Automatic frequency control arrangement | |||
| 83 | 5521947 | Phase detection reset in phase locked loops used for direct VCO modulation | |||
| 84 | 5519402 | Doppler shift compensation apparatus | |||
| 85 | 5515364 | Radio frequency telecommunications transceiver | |||
| 86 | 5513219 | Apparatus and method for transmitting information with a subminimally modulated transmission signal | |||
| 87 | 5497121 | Automatically correcting data detection circuit and method for FSK modulated signals | |||
| 88 | 5493583 | Wireless data transceiver | |||
1995 | |||||
| 89 | 5475705 | Demodulator for Manchester-coded FM signals | |||
| 90 | 5471187 | Data signal comparation with self-adjusting threshold | |||
| 91 | 5457424 | Quadrature demodulator operable over different IF frequencies | |||
| 92 | 5453714 | Binary FM demodulator with self-adjusting resonant operating frequency according to demodulated binary output signal duty cycle | |||
| 93 | 5451899 | Direct conversion FSK receiver using frequency tracking filters | |||
| 94 | 5450086 | Self-tuning receiver/decoder for frequency shift keying RF data transmission | |||
| 95 | 5450032 | FSK data demodulator using mixing of quadrature baseband signals | |||
| 96 | 5446762 | Data demodulation circuit for FSK modulated RF signal receiver providing wide-band 90.degree. baseband phase shifting | |||
| 97 | 5444737 | Wireless data transceiver | |||
| 98 | 5444415 | Modulation and demodulation of plural channels using analog and digital components | |||
| 99 | 5436931 | FSK receiver | |||
| 100 | 5420888 | System and method for split phase demodulation of frequency shift keyed signals | |||
| 101 | 5414736 | FSK data receiving system | |||
| 102 | 5412687 | Digital communications equipment using differential quaternary frequency shift keying | |||
| 103 | 5410315 | Group-addressable transponder arrangement | |||
| 104 | 5408695 | Intelligent automatic deviation compensation for wireless modems | |||
| 105 | 5402446 | FSK receiver having a PLL local oscillator operable in intermittent operation in accordance with its phase locked state | |||
| 106 | 5394109 | Digital FSK demodulator with offset cancellation | |||
1994 | |||||
| 107 | 5373533 | FSK signal receiving device | |||
| 108 | 5365470 | Fast fourier transform multiplexed pipeline | |||
| 109 | 5365185 | Frequency controlled loop for demodulating OOK and PSK signals | |||
| 110 | 5345187 | Dual frequency demodulation apparatus for frequency shift keyed (FSK) data signals and FM signals and method therefor | |||
| 111 | 5309113 | FSK data demodulator | |||
| 112 | 5293408 | FSK data receiving system | |||
| 113 | 5287516 | Demodulation process for binary data | |||
1993 | |||||
| 114 | 5245632 | Synchronous FSK detection | |||
| 115 | 5241566 | Full duplex FSK system | |||
| 116 | 5227741 | Variable speed asynchronous modem | |||
| 117 | 5197085 | Radio receiver | |||
1992 | |||||
| 118 | 5157343 | Electronic arrangement for receiving a modulated carrier signal | |||
| 119 | 5091921 | Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency | |||
| 120 | 5081650 | Data receiver | |||
| 121 | 5079513 | Demodulator and radio receiver having such a demodulator | |||
1991 | |||||
| 122 | 5065409 | FSK discriminator | |||
| 123 | 5053717 | FSK demodulator | |||
| 124 | 5040192 | Method and apparatus for optimally autocorrelating an FSK signal | |||
| 125 | 5039951 | Josephson junction FSK demodulator | |||
| 126 | 5015961 | Frequency shift demodulator | |||
| 127 | 5012492 | Apparatus and method for detecting a carrier signal | |||
| 128 | 4987374 | FSK demodulator | |||
1990 | |||||
| 129 | 4893317 | Digital signals and frequency correction in a digital wireless system | |||
1989 | |||||
| 130 | 4881240 | AM equalizer circuit for digital systems | |||
| 131 | 4870659 | FSK demodulation circuit | |||
| 132 | 4866771 | Signaling system | |||
| 133 | 4825448 | Subscriber unit for wireless digital telephone system | |||
| 134 | 4814717 | FSK frequency discriminator for a coherent optical transmission system | |||
1988 | |||||
| 135 | 4763290 | Apparatus for performing a fast Fourier transform | |||
| 136 | 4752742 | Frequency demodulator for recovering digital signals | |||
| 137 | 4745627 | Procedure and circuit for detection of the information of a received signal | |||
| 138 | 4726041 | Digital filter switch for data receiver | |||
| 139 | 4723310 | Digital data transmission system by coherent light wave modulation | |||
1987 | |||||
| 140 | 4716579 | Phase corrector | |||
| 141 | 4713563 | d.c. Block capacitor circuit for rejection of d.c. offset | |||
| 142 | 4696017 | Quadrature signal generator having digitally-controlled phase and amplitude correction | |||
| 143 | 4682117 | Quadrature demodulation data receiver with phase error correction | |||
| 144 | 4680778 | Fast acquisition circuit for synchronous digital receiver operating in wideband noise | |||
| 145 | 4672640 | Radio receiver | |||
| 146 | 4672632 | Optimized communications system and method employing channel synthesis and phase lock detection | |||
| 147 | 4656648 | Process for the noncoherent demodulation of a digital signal | |||
| 148 | 4651107 | Demodulator for digital FM signals | |||
| 149 | 4649551 | Decoder for a frequency-keyed signal, particularly an FSK-video text signal | |||
| 150 | 4647864 | Variable-delay, sine-cosine non-coherent demodulator | |||
| 151 | 4639935 | Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission | |||
1986 | |||||
| 152 | 4628518 | Radio receiver | |||
| 153 | 4618967 | Radio receiver | |||
| 154 | 4612509 | Frequency shift keyed demodulator | |||
| 155 | 4605903 | FSK demodulator with high noise immunity digital phase detector | |||
| 156 | 4583239 | Digital demodulator arrangement for quadrature signals | |||
| 157 | 4580101 | FM demodulators with local oscillator frequency control circuits | |||
| 158 | 4571738 | Demodulator logic for frequency shift keyed signals | |||
| 159 | 4570125 | FSK Demodulator with concurrent carrier and clock synchronization | |||
| 160 | 4569061 | Phase distortion adaptive detector of minimum shift keying data | |||
| 161 | 4568882 | Digital FSK demodulator circuit | |||
1985 | |||||
| 162 | 4543547 | Demodulation filter for a signal modulated in binary frequency manner | |||
| 163 | 4529941 | FSK Demodulator utilizing multiple-phase reference frequencies | |||
| 164 | 4523324 | Direct modulation FM data receiver | |||
| 165 | 4521892 | Direct conversion radio receiver for FM signals | |||
| 166 | 4517680 | Error vector normalizer | |||
| 167 | 4499425 | Phase velocity sign detector for frequency shift key demodulation | |||
1984 | |||||
| 168 | 4488120 | Frequency shift keying demodulator using a phase locked loop and voltage comparator | |||
| 169 | 4486715 | Frequency shift key demodulator | |||
| 170 | 4475219 | Demodulator for frequency-shift-keyed binary data signals | |||
| 171 | 4462107 | Radio receiver for frequency shift keyed signals | |||
| 172 | 4437068 | FSK Demodulator for frequency-modulation modem | |||
1983 | |||||
| 173 | 4388730 | Noise detector and data signal receiver for a frequency modulation system | |||
| 174 | 4382232 | Device for demodulating signals modulated by frequency-shift keying | |||
1982 | |||||
| 175 | 4359692 | Rapid acquisition shift keyed signal demodulator | |||
| 176 | 4355407 | Device for disconnecting the receiver in case of a small signal-to-noise ratio for a digital-modulated radio system | |||
| 177 | 4336613 | Charge coupled device filters and modems incorporating such filters | |||
| 178 | 4322851 | Decoding logic for frequency shift keying receiver | |||
1981 | |||||
| 179 | 4291275 | Frequency demodulation system | |||
| 180 | 4264975 | Receiver for frequency modulated signals having two quadrature channels | |||
| 181 | 4254503 | Radio receiver for tone modulated signals | |||
1980 | |||||
| 182 | 4234852 | Coherent frequency shift key demodulator | |||
| 183 | 4229698 | Tuning indicator | |||
| 184 | 4193034 | Radio receiver for FSK signals | |||
| 185 | 4193033 | Quadrature transposition stage | |||
| 186 | 4188503 | Digital data communications system | |||
1979 | |||||
| 187 | 4156229 | Bit identification system for borehole acoustical telemetry system | |||
| 188 | 4156194 | Frequency-shift-keyed receiver | |||
1978 | |||||
| 189 | 4096442 | Crosstalk corrector and decision device for FSK | |||
| 190 | 4072905 | Wide acquisition range MSK demodulator input circuit | |||
1977 | |||||
| 191 | 4056838 | In-band signal-to-noise ratio monitor for an FSK relaying system | |||
| 192 | 4054842 | Channel gain imbalance compensation for FSK demodulator | |||
| 193 | 4053836 | Device for transmission of information by pulse code frequency shift modulation | |||
| 194 | 4015206 | Protective relaying modem receiver | |||
| 195 | 4015082 | Multi-channel signal decoder | |||
1976 | |||||
| 196 | 3967202 | Data transmission system including an RF transponder for generating a broad spectrum of intelligence bearing sidebands | |||
| 197 | 3955142 | Single-sideband radiotelephone system | |||
| 198 | 3947769 | Threshold correction system in FSK transmissions | |||
| 199 | 3936762 | Digital phase-lock loop systems for phase processing of signals | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||