СПИСОК патентов США - подгруппа МПК16 H04B14/02


Выделить слова в названиях патентов:


№ п/п Номер патента Название патента

2017

19600986Signalling system

2016

29496969Double integrator pulse wave shaper apparatus, system and method
39436171Motor control system, motor control device, brushless motor, and motor control method
49374174Pulse width modulated (PWM) sensor interface using a terminated symmetrical physical layer
59363033Multiplexed pulse modulation using superposition
69350463Electronic device, communication method, audio device and amplifier device using pulse density modulation for communication
79350418System and method of using variable pulses for symbology
89306774Communication apparatus
99293918Powerline pulse position modulated three-phase transmitter apparatus and method
109252835Time-phase-hopping modulation and demodulation of multiple bit streams with phase-change frequency control, such as for wireless chip area network
119231709Transmitting and/or receiving data in a side channel

2015

129203661Communication system
139191877Method and apparatus for wireless transmission of data packets
149059790Ultra-wide band communication apparatus and method

2014

158886032Wavelength multiplexing optical transmission system, transmitter, and receiver
168805185Wavelength-division multiplexing transmission device

2013

178463133Signal framing in a coherent optical receiver

2010

187844183System and a method for transmission of information
197684221Method and circuit for galvanically isolated transmission of a signal

2009

207546001Monolithic photonic integrated circuit (PIC) with forward error correction (FEC)
217529531Apparatus and methods for estimating a sleep clock frequency

2008

227472057Detector for use in voice communications systems

2007

237221872On-line dispersion compensation device for a wavelength division optical transmission system
247164859Free-space dynamic wavelength routing systems with interleaved channels for enhanced performance

2006

257151893Data transmission system, transmission method of optical network monitor control signal, and node
267113705Methods and apparatus for sensing multiple wavelengths simultaneously in a single wavelength sensing device
277062174Wavelength division multiplexing add-drop multiplexer using an optical tapped delay line

2005

286961305Polarity-alternated pulse width CDMA and method for measuring distance using the same
296952461Sampling frequency conversion apparatus
306947795Frame length modulation and pulse position modulation for telemetry of analog and digital data
316944212Method and apparatus for the spectrally efficient encoding and decoding of discrete data into and from analog waveforms
326940892Spread spectrum transmission apparatus, spread spectrum reception apparatus, and spread spectrum communication system
336914940Device for improving voice signal in quality
346912245Apparatus for calculating decision parameters in an IMT-2000 system
356882301Time domain radio transmission system
366876698Tunable narrow-band filter including sigma-delta modulator
376865230Filter system with reduced switch thermal noise and a .SIGMA..DELTA. modulator using such a filter
386853633Methods of providing signal parameter information using delta-modulation and related systems and terminals
396847675Ultrawide-band communication system and method
406839387Self-dithering sigma-delta converter and communication device incorporating same

2004

416823019Reduced DC transients in a sigma delta filter
426823018Multiple description coding communication system
436819275Audio signal compression
446816101High-speed analog-to-digital converter using a unique gray code
456775297Computer-based conversion of digital signals
466738428Apparatus and methods for decoding a predictively encoded signal and removing granular noise
476711122Frequency offset differential pulse position modulation
486687293Method, system and apparatus for calibrating a pulse position modulation (PPM) decoder to a PPM signal
496683548Analog isolation system with digital communication across a capacitive barrier

2003

506639946Sigma delta modulator with SAW filter
516636573Precision timing generator system and method
526636567Method of specifying non-allowable pulse characteristics
536636566Method and apparatus for specifying pulse characteristics using a code that satisfies predefined criteria
546606051Pulse-responsive dipole antenna
556600788Narrow-band filter including sigma-delta modulator implemented in a programmable logic device
566594317Simple encoding/decoding technique for code position modulation
576577691Precision timing generator apparatus and associated methods
586574281Voice recording and playback mode using the G.726 half-rate within the personal handy phone system
596570513Isolation system with digital communication across a capacitive barrier
606549580Subset averaged median predictor for differential pulse code modulation
616549567Full duplex ultrawide-band communication system and method
626539061Efficient method for decompressing difference coded signals

2002

636489908Wireless local loop terminal and system having high speed, high resolution, digital-to-analog converter with off-line sigma-delta conversion and storage
646473497Digital telephone set
656452547METHOD OF AND APPARATUS FOR EXPANDING THE DIGITAL BIT RATE POTENTIAL FOR COMMUNICATION ADDED TO LORAN-C RADIO NAVIGATION PULSE TRAINS AND THE LIKE, WITHOUT AFFECTING THE NAVIGATION CAPABILITY AND INTEGRITY THEREOF
666430208Ultrawide-band communication system and method
676400294Method of muting a digital signal and a digital signal recording apparatus and a digital signal processing apparatus employing the digital signal muting method
686396877Method and apparatus for combining serial data with a clock signal
696369728Method and system for real-time processing of the recorded PCM data to get the desired full-scale range of values
706341165Coding and decoding of audio signals by using intensity stereo and prediction processes

2001

716317457Pulse density modulator
726310906Chaotic carrier pulse position modulation communication system and method
736304623Precision timing generator system and method
746297755Analog isolation system with digital communication across a capacitive barrier
756256354Voice recording and playback mode using the G.726 half-rate within the personal handy phone system
766225927Analog isolation system with digital communication across a capacitive barrier
776219380Pulse position modulation based transceiver architecture with fast acquisition slot-locked-loop
786212230Method and apparatus for pulse position modulation
796205169Spread spectrum pulse position modulation communication system

2000

806157324Analog to digital voice transmitter
816115415Mapper for high data rate signalling
826115411System and method for spread spectrum code position modulation and wireless local area network employing the same
836108808Apparatus and method for decoding received signals and localization of errors therein by comparison with aberrant data values
846107948Analog isolation system with digital communication across a capacitive barrier
856078620Method and apparatus for performing adaptive differential pulse code modulation
866055266Spread spectrum pulse position modulation communication system
876031862Ultrawide-band communication system and method
886031475Method and device of information transfer between circuits that exchange data via converters

1999

895995534Ultrawide-band communication system and method
905982817Transmission system utilizing different coding principles
915974089Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor
925963581Ultrawide-band communication system and method
935960031Ultrawide-band communication system and method
945958081Energy efficient remote control protocol with improved reliability
955952956Time domain radio transmission system
965926301Method and apparatus for optical wireless communication
975925146Reception data expander having noise reduced in generation of reception data error
985920577Digital signal processing method and apparatus
995870435Quantization/inverse quantization unit selectably accommodating multiple video encoding standards and including differential pulse code modulator
1005862184Mapper for high data rate transmission through channels subject to robbed bit signalling
1015862179Mapper for high data rate signalling

1998

1025844513Method and apparatus for transmitting sigma delta modulated audio signals
1035839100Lossless and loss-limited compression of sampled data signals
1045838724Spectral and power shaping mapper for high data rate signalling
1055825816Spectral and power shaping mapper for high data rate signalling
1065822371Mapper for high data rate signalling
1075815530Data converters for sound equipment
1085815207Differential coding and decoding method and related circuits
1095812081Time domain radio transmission system
1105802108Waveform correction apparatus
1115799039Method and apparatus for error mitigating a received communication signal
1125793754Two-way, two-wire analog/digital communication system
1135745524Self-initialized coder and method thereof
1145732356Method and an arrangement for sound reconstruction during erasures
1155715366Method for the coded transmission of voice signals
1165712871Method and apparatus for implementing a direct-sequence code division multiple access communication system with an M-ary pulse-position modulated spreading-sequence signal
1175712838Method and apparatus for recording on a disk medium a .SIGMA..DELTA.-modulated signal with a sampling frequency n.times.44.1 kHz
1185706308Signal processing apparatus and method for sigma-delta modulated signals including gain adjustment

1997

1195696791Apparatus and method for decoding a sequence of digitally encoded data
1205692127System for transmitting multiple pulses PPM control signal to wireless device to indicate collision in a wired network while placing data on the network
1215687192Circuit arrangement for transmitting information on a two-wire line
1225687189Method of noise reduction for an ADPCM signal
1235687169Full duplex ultrawide-band communication system and method
1245686869Pulse-width modulating device
1255677927Ultrawide-band communication system and method
1265673206Real-time digital audio compression/decompression system
1275666379Best-of-M pulse position modulation detector
1285654990Real-time digital audio compression/decompression system
1295654978Pulse position modulation with spread spectrum
1305640419Covert communication system
1315623511Spread spectrum code pulse position modulated receiver having delay spread compensation
1325621851Method of expanding differential PCM data of speech signals
1335621760Speech coding transmission system and coder and decoder therefor
1345610907Ultrafast time hopping CDMA-RF communications: code-as-carrier, multichannel operation, high data rate operation and data rate on demand
1355608758Radio control device having crystal high frequency module and high frequency phase lockloop for selective use, modules detachably mounted
1365596601Method and apparatus for spread spectrum code pulse position modulation
1375594912Digital signal processing device with optimized ALU circuit and logic block for controlling one of two registers based on the contents of the multiplication register

1996

1385574453Digital audio recording apparatus
1395561688Real-time digital audio compression/decompression system
1405559832Method and apparatus for maintaining convergence within an ADPCM communication system during discontinuous transmission
1415555546Apparatus for decoding a DPCM encoded signal
1425550837Adaptive differential pulse code modulation system with transmission error compensation
1435537440Efficient transcoding device and method
1445524024ADPCM synthesizer without look-up table
1455511095Audio signal coding and decoding device
1465506713Optical switching system
1475504835Voice reproducing device

1995

1485469475Transmitter comprising an eletronic arrangement for generating a modulated carrier signal
1495467372Multi channel ADPCM compression and expansion device
1505450444Digital AM transmitter
1515450395Code position modulation system and method for multiple user satellite communications
1525446757Code-division-multiple-access-system based on M-ary pulse-position modulated direct-sequence
1535408583Sound outputting devices using digital displacement data for a PWM sound signal
1545396238Data compressing and expanding apparatus for tone generation
1555384807ADPCM transcoder with integral tone generation and method therefor
1565379355Data encoding using one or more adaptive decision trees

1994

1575363108Time domain radio transmission system
1585337042Vehicle communications network transceiver, transmitter circuit therefor
1595334977ADPCM transcoder wherein different bit numbers are used in code conversion
1605323154Data compressing and expanding apparatus
1615319573Method and apparatus for noise burst detection in a signal processor
1625317522Method and apparatus for noise burst detection in a signal processor
1635313457Code position modulation system and method for multiple user satellite communications
1645309443Dynamic muting method for ADPCM coded speech
1655291484Relay and exchange system for time division multiplex data
1665283679Communications process, transmitter and receiver for analog signals
1675278866Radio communication apparatus with stored coding/decoding procedures

1993

1685265126Voice recording and reproducing apparatus having perpendicular carrier modulation
1695253269Delta-coded lag information for use in a speech coder
1705249201Transmission of multiple carrier signals in a nonlinear system

1992

1715166958Coding apparatus with low-frequency and DC suppression
1725166954Adaptive system for measuring the broadband signal-to-noise ratio of a transmission channel
1735157343Electronic arrangement for receiving a modulated carrier signal
1745155743Digital data converter
1755151698Method for the coding of a digital signal, coder and decoder to implement this method, regeneration method and corresponding regenerator utilizing pulse position modulation
1765113278Communication system and apparatus using chip signals

1991

1775020154Transmission link
1784990914Method and apparatus for interpolative A/D conversion

1990

1794979186Time domain radio transmission system
1804955037Apparatus and methods for recovering alignment from a non-ideally encoded multi-bit digital signal
1814951052Correction of systematic error in an oversampled analog-to-digital converter
1824944012Speech analyzing and synthesizing apparatus utilizing differential value-based variable code length coding and compression of soundless portions
1834930126Time division multiplex system suited for burst analog transmission
1844928318Optical signal transmission system including pulsed FM modulator/demodulator
1854922874Automobile electronic control modules communicating by pulse width modulated signals
1864912765Voice band data rate detector
1874899350Signal communication capable of avoiding an audible reproduction of a sequence of information signals
1884897856Offset correction circuit for a sigma-delta coding device

1989

1894875222Information signal transmission system by predictive differential coding
1904864636Crystal controlled transmitter
1914860312Quality improvement for a digitally transmitted information signal
1924857928Method and arrangement for a sigma delta converter for bandpass signals
1934839923Method and apparatus for time companding an analog signal
1944839897Fault detecting system for ADPCM codec
1954831636Coding transmission equipment for carrying out coding with adaptive quantization
1964821038Method of and apparatus for Loran-C message communication with reduced skywave navigation location errors and the like
1974813057Time domain radio transmission system
1984800391Method of and apparatus for message communication on Loran-C navigational signal broadcasts and the like with reduced navigation errors

1988

1994788692Adaptive differential pulse code modulation system
2004774496Digital encoder and decoder synchronization in the presence of data dropouts
2014768203Signal-to-noise ratio testing in adaptive differential pulse code modulation
2024764769Position coded pulse communication system
2034759038PCM transmission system
2044748446Position coded pulse train
2054743906Time domain radio transmission system
2064733219Converter circuit
2074731798Method for transmitting information, in which the signals are coded as amplitudes of the half-waves or periods of a sinusoidal alternating current
2084723237Signal transmission arrangment, a transmitter and a receiver for such an arrangement and a communication system including such an arrangement

1987

2094713841Synchronous, asynchronous, data rate transparent fiber optic communications link
2104710957Data detection by statistical analysis
2114710748Method and device for converting an analog signal into a pulse signal
2124706300Optical heterodyne detection pulse receiving system and method
2134700360Extrema coding digitizing signal processing method and apparatus
2144686625Method and apparatus for generating a display of well logging measurements
2154656633Error concealment system
2164648133Synchronization tracking in pulse position modulation receiver
2174641317Spread spectrum radio transmission system

1986

2184633523Optical analog data link with simple self-test feature
2194630007Delta modulated signal sampling rate converter using digital means
2204617676Predictive communication system filtering arrangement
2214588981Double integration, delta-sigma, analog-digital coder
2224584720Optical communication system using pulse position modulation
2234581746Technique for insertion of digital data bursts into an adaptively encoded information bit stream
2244569058Transmission system
2254567883Data compression of ECG data using delta modulation

1985

2264554671Delta modulated communication system
2274549304ADPCM Encoder/decoder with signalling bit insertion
2284542516ADPCM Encoder/decoder with zero code suppression
2294541101Process and device for voice interpolation in a transmission system for digitized voice
2304528551Digital to analog converter employing sigma-delta modulation for use in telephone systems
2314527276Digital pulse position modulation communications system with threshold extension
2324519085Differential data coding and decoding process and system restricting propagation of transmission errors
2334516241Bit compression coding with embedded signaling
2344509150Linear prediction coding for compressing of seismic data

1984

2354481677Optical transmitting and receiving apparatus
2364466440Heart pacer time-domain processing of internal physiological signals
2374450564Apparatus for modulating the output signal of a converter
2384449190Silence editing speech processor
2394439756Delta-Sigma modulator with switch capacitor implementation
2404438523Differential digital modulation and demodulation system with an analog signal-dependent sampling clock
2414437087Adaptive differential PCM coding

1983

2424414663Time division multiplex system having transmitted pulses in time channels distributed over and co-transmitted with a frame clock signal component
2434373154Data encoding and/or decoding

1982

2444363127Line signaling apparatus and techniques for digital data links
2454360713Echo detector particularly for speech interpolation communication systems
2464346478Fiber optical sensor system, preferably for measuring physical parameters
2474319082Adaptive prediction differential-PCM transmission method and circuit using filtering by sub-bands and spectral analysis
2484317233Telephone subscriber station
2494314370Wireless intercommunication system
2504314105Delta modulation method and system for signal compression

1981

2514301446Digital transmission system with a double analog integrator Delta Sigma coder and a double digital integrator Delta Sigma decoder
2524300236Radio signalling systems
2534276649Receiver for digital signals in line code
2544270027Telephone subscriber line unit with sigma-delta digital to analog converter

1980

2554230903Data transmission system
2564225963Arrangement for processing a delta modulation signal, in particular for decoding these signals
2574220925Encoding analog signals into digital signals using a triangular reference
2584215311Adaptive delta-modulation system
2594206316Transmitter-receiver system utilizing pulse position modulation and pulse compression
2604184150Circuit arrangement for halving the sampling rate of a delta modulation signal

1979

2614179660Method and device for transmitting pulse-duration modulated signals using two oscillators
2624179659Signal transmission system
2634174502Delta modulated digital signal detector
2644159448Communication systems
2654142066Suppression of idle channel noise in delta modulation systems

1978

2664122300Data transmission system and application thereof to the transmission of analog signals and of data in a network with delta modulation
2674109204Apparatus and method for wideband communication with suppression of harmonic interference
2684088831Synchronization for PCM transmission systems

1977

2694061976Receivers for pulses of different widths
2704061975Receiver for pulses of different widths
2714059800Digital multi-line companded delta modulator
2724039948Multi-channel differential pulse code modulation system
2734008378Multi-radix digital communications system with time-frequency and phase-shift multiplexing
2744005818Pulse signaling system
2754004082Method and system for multiplexing signal for transmission

1976

2763993954Electric communication system
2773979676Delta modulation apparatus
2783962636Device for converting an incoming analog signal into an outgoing PCM signal
2793959586Frequency burst communication system
2803949299Signal coding for telephone communication system
2813949298Time shared delta modulation system
2823937897Signal coding for telephone communication system
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017