СПИСОК патентов США - подгруппа МПК16 H04B14/06


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№ п/п Номер патента Название патента

2017

19602325Transmitter and method of transmitting
29602223Differential signal transmission

2016

39531416Radiofrequency signal receiver designed to be installed on a satellite
49461688Power efficient communications
59438375Method for encoding information object and encoder using the same
69431965Selectable-input-impedance radio-frequency reception amplifier
79401829Method for generating a filter bank for receiving a signal modulated by continuous phase modulation, and method for receiving said signal
89344108Device having a delta-sigma modulator and a switching amplifier connected thereto
99338190System and method for managing multimedia communications across convergent networks
109332585Non-synchronized ADPCM with discontinuous transmission
119331654Dual squelch detectors and methods for low power states
129270419Wireless communication device and communication terminal

2015

139210430Reference picture set signaling and restriction on an electronic device
149191042Interference cancellation technique for channel estimation in OFDM receivers
159136813Wireless network receiver
169054903Signal equalization with compensation for scrambling code correlation
179042462Differential signal transmission
189014320Interference whitening filters for MIMO maximum likelihood receivers
199014281Delta-sigma modulator and transmitter including the same
208964860Digital modulator
218948326Circuit architecture for I/Q mismatch mitigation in direct conversion receivers

2014

228923414Systems and methods for adaptive sample quantization
238923391Encoding apparatus, control method for encoding apparatus and program
248908778Rail-to-rail comparator, pulse amplitude modulation receiver, and communication system using the same
258873645Information transmission apparatus
268873644Isolated modulator circuit with synchronized pulse generator for self-monitoring reset with capacitively-coupled isolation barrier
278855250Wireless communication system with improved automatic gain control
288855215Phase/frequency synthesis using periodic sigma-delta modulated bit-stream techniques
298805432Mobile communication terminal and transmission power control method of the same
308798164System and method for automatic filter generation using sampled sinc function with windowed smoothing
318755447Wireless audio equipment using a quadrature modulation system
328737491Analog-to-digital converter based decision feedback equalization
338737490Analog-to-digital converter based decision feedback equalization
348711720Cognitive radio cooperative spectrum sensing method and fusion center performing cognitive radio cooperative spectrum sensing
358705588Systems and methods for using code space in spread-spectrum communications
368675728Transmitting apparatus and method, and receiving apparatus and method
378675646Method for encoding information object and encoder using the same
388670490Signal transmission apparatus
398654864System and method for selectively performing single-ended and differential signaling
408654377Data communication device, communication control method, and program
418644436Method and apparatus for enhanced uplink general rake channel estimation

2013

428619882Data modulation circuit
438594205Multiple description coding communication system
448559574System and method for adjacent channel power detection and dynamic bandwidth filter control
458559530Transmitters providing cycle encoded signals
468521522Audio coding/decoding method and apparatus using excess quantization information
478509108Apparatus and method for detecting voice period in mobile communication system
488488684Methods and systems for hybrid MIMO decoding
498462857Method and receiver for decoding digital information
508432977Information processing apparatus and signal transmission method
518406314Two-dimensional DPCM with PCM escape mode
528391374Method and apparatus for selective disregard of Co-channel transmissions on a medium
538379781Apparatus and method for adaptive receive signal decoding based on channel variation in communication system
548369467Automatic gain control system

2012

558340445Image encoding device, image encoding method, image encoding/decoding system
568340229Method and apparatus for reducing the interferences between a wideband device and a narrowband device interfering with the wideband device
578311131Method for interpolating at least two position-dependent, periodic analog signals that are dephased relative each other
588300711Adaptive differential pulse code modulation/demodulation system and method
598254508Method and apparatus for frequency tracking in a space time transmit diversity receiver
608254503Tracking automatic gain control of orthogonal frequency domain multiplexing systems
618238495Method and apparatus for reducing the interferences between a wideband device and a narrowband interferer
628223904Multiple hypothesis decoding
638208588Single-carrier/multi-carrier community receiver and related signal processing method
648194780Differential signal output device
658149928Receivers for cycle encoded signals
668121182High performance equalizer with enhanced DFE having reduced complexity
678111793System and method for adjacent channel power detection and dynamic bandwidth filter control
688107751DPCM with adaptive range and PCM escape mode
698098743Pilot signal transmission method and radio communication system for enabling measurement of reception quality with high accuracy

2011

708050332System and method for selectively performing single-ended and differential signaling
718036282Multi-tiered quantization of channel state information in multiple antenna systems
728031783Phase noise shaping using sigma delta modulation in a timing recovery unit
737983347Multiple differential transmission system including signal transmitter and signal receiver connected via three signal lines
747965157Cancellation of anti-resonance in resonators
757957472Enhanced signaling sensitivity using multiple references
767920622Digital broadcasting transmitter, turbo stream processing method thereof, and digital broadcasting system having the same
777916801Time-domain equalization for discrete multi-tone systems
787894557Signal interference measurement

2010

797817725Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same
807809555Speech signal classification system and method
817809205Image processing method, image processing apparatus, image forming apparatus and recording medium
827809204Method and apparatus for encoding and decoding key value data of coordinate interpolator
837804922System and method for adjacent channel power detection and dynamic bandwidth filter control
847792385Scratch pad for storing intermediate loop filter data
857720160Phase noise shaping using sigma delta modulation in a timing recovery unit
867720159Receivers for cycle encoded signals
877714873Strategies for compressing textures
887671631Low voltage differential signal receiving device
897643637Efficient code constructions via cryptographic assumptions

2009

907636396Method of testing remote power line carrier pick-up coil
917630445Establishing slot boundaries of slots of a diversity control feedback signal
927561635Variable coder apparatus for resonant power conversion and method
937558326Method and apparatus for sending auxiliary data on a TMDS-like link
947554953Radio communication system
957539244Receiver for performing adaptive equalization and method
967522669Method and apparatus for selective disregard of co-channel transmissions on a medium
977499674Method and system for repeat request in hybrid ultra wideband-bluetooth radio

2008

987453942Method and unit for substracting quantization noise from a PCM signal
997450648Digital signal processing device, a method and a delta-sigma modulator using the same method
1007430239Bit-detection arrangement and apparatus for reproducing information
1017386052Automation device using FSK modulation
1027376555Encoding and decoding of overlapping audio signal values by differential encoding/decoding
1037369615Soft demodulation method and apparatus
1047356085Embedded multiple description scalar quantizers for progressive image transmission
1057336713Method and apparatus for encoding and decoding data
1067333547Methods and devices for dynamic quantizing input of a soft decision decoder
1077330555Coding device and method, and recording medium
1087315602Digital spread spectrum frequency synthesizer

2007

1097308032Oversampling D/A converter and method for shaping nonlinear intersymbol interference in an oversampling D/A converter
1107298783Method of compressing sounds in mobile terminals
1117295617ADPCM decoder
1127289565Multiple description coding communication system
1137266152Digital signal processing device and digital signal processing method
1147257164Class D amplifier
1157224757Method and apparatus for improving the performance of delta-sigma modulators
1167221711Multilevel data encoding and modulation technique
1177194036Digital data processing circuits and systems with delta-sigma modulator filtering
1187184483Technique for emulating differential signaling
1197177377Avoidance mechanism for co-channel interference in a network

2006

1207145954Method and apparatus for mapping pulses to a non-fixed layout
1217145936Bandpass delta sigma truncator and method of truncating a multi-bit digital signal
1227136420Recording of super-audio or like one-bit-per-sample signals on a PCM recorder
1237116721Delta-sigma modulators with integral digital low-pass filtering
1247113118Digital signal encoding apparatus and method, digital signal decoding apparatus and method, and digital signal transmission system
1257110460Delta-sigma modulators with integral digital low-pass filtering
1267098828Complex band-pass .DELTA..SIGMA. AD modulator for use in AD converter circuit
1277088779Method and apparatus for reducing the word length of a digital input signal and method and apparatus for recovering a digital input signal
1287075995Three-order sigma-delta modulator
1297065142ADSL encoder and decoder
1307054372Digital transmission line tap circuit
1317034728Bandpass delta-sigma modulator with distributed feedforward paths
1327034727Bandpass sigma-delta modulator
1337031395Apparatus and methods for digital-to-analog conversion
1347023938Receiver for discrete multitone modulated signals having window function
1357020208Differential clock signals encoded with data
1367016421Time-interleaved delta sigma analog to digital modulator
1376999516Technique for emulating differential signaling
1386990152Digital signal processing device and a method and a .DELTA.-.sigma. sigma modulator using the same method
1396985532Ultra wideband (UWB) transmitter architecture
1406985531Dual domain differential encoder/decoder

2005

1416944212Method and apparatus for the spectrally efficient encoding and decoding of discrete data into and from analog waveforms
1426914940Device for improving voice signal in quality
1436876698Tunable narrow-band filter including sigma-delta modulator
1446865230Filter system with reduced switch thermal noise and a .SIGMA..DELTA. modulator using such a filter
1456853633Methods of providing signal parameter information using delta-modulation and related systems and terminals
1466839387Self-dithering sigma-delta converter and communication device incorporating same

2004

1476823019Reduced DC transients in a sigma delta filter
1486823018Multiple description coding communication system
1496819275Audio signal compression
1506775297Computer-based conversion of digital signals
1516738428Apparatus and methods for decoding a predictively encoded signal and removing granular noise
1526683548Analog isolation system with digital communication across a capacitive barrier

2003

1536639946Sigma delta modulator with SAW filter
1546636567Method of specifying non-allowable pulse characteristics
1556636566Method and apparatus for specifying pulse characteristics using a code that satisfies predefined criteria
1566600788Narrow-band filter including sigma-delta modulator implemented in a programmable logic device
1576574281Voice recording and playback mode using the G.726 half-rate within the personal handy phone system
1586570513Isolation system with digital communication across a capacitive barrier
1596549580Subset averaged median predictor for differential pulse code modulation
1606539061Efficient method for decompressing difference coded signals

2002

1616489908Wireless local loop terminal and system having high speed, high resolution, digital-to-analog converter with off-line sigma-delta conversion and storage
1626473497Digital telephone set
1636400294Method of muting a digital signal and a digital signal recording apparatus and a digital signal processing apparatus employing the digital signal muting method
1646396877Method and apparatus for combining serial data with a clock signal
1656369728Method and system for real-time processing of the recorded PCM data to get the desired full-scale range of values
1666341165Coding and decoding of audio signals by using intensity stereo and prediction processes

2001

1676297755Analog isolation system with digital communication across a capacitive barrier
1686256354Voice recording and playback mode using the G.726 half-rate within the personal handy phone system
1696225927Analog isolation system with digital communication across a capacitive barrier

2000

1706157324Analog to digital voice transmitter
1716108808Apparatus and method for decoding received signals and localization of errors therein by comparison with aberrant data values
1726107948Analog isolation system with digital communication across a capacitive barrier
1736078620Method and apparatus for performing adaptive differential pulse code modulation
1746031475Method and device of information transfer between circuits that exchange data via converters

1999

1755982817Transmission system utilizing different coding principles
1765974089Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor
1775925146Reception data expander having noise reduced in generation of reception data error
1785920577Digital signal processing method and apparatus
1795870435Quantization/inverse quantization unit selectably accommodating multiple video encoding standards and including differential pulse code modulator

1998

1805844513Method and apparatus for transmitting sigma delta modulated audio signals
1815839100Lossless and loss-limited compression of sampled data signals
1825815530Data converters for sound equipment
1835815207Differential coding and decoding method and related circuits
1845802108Waveform correction apparatus
1855799039Method and apparatus for error mitigating a received communication signal
1865745524Self-initialized coder and method thereof
1875732356Method and an arrangement for sound reconstruction during erasures
1885715366Method for the coded transmission of voice signals
1895712838Method and apparatus for recording on a disk medium a .SIGMA..DELTA.-modulated signal with a sampling frequency n.times.44.1 kHz
1905706308Signal processing apparatus and method for sigma-delta modulated signals including gain adjustment

1997

1915696791Apparatus and method for decoding a sequence of digitally encoded data
1925687189Method of noise reduction for an ADPCM signal
1935673206Real-time digital audio compression/decompression system
1945654990Real-time digital audio compression/decompression system
1955621851Method of expanding differential PCM data of speech signals
1965621760Speech coding transmission system and coder and decoder therefor
1975594912Digital 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

1985574453Digital audio recording apparatus
1995561688Real-time digital audio compression/decompression system
2005559832Method and apparatus for maintaining convergence within an ADPCM communication system during discontinuous transmission
2015555546Apparatus for decoding a DPCM encoded signal
2025550837Adaptive differential pulse code modulation system with transmission error compensation
2035537440Efficient transcoding device and method
2045524024ADPCM synthesizer without look-up table
2055511095Audio signal coding and decoding device
2065504835Voice reproducing device

1995

2075469475Transmitter comprising an eletronic arrangement for generating a modulated carrier signal
2085467372Multi channel ADPCM compression and expansion device
2095408583Sound outputting devices using digital displacement data for a PWM sound signal
2105396238Data compressing and expanding apparatus for tone generation
2115384807ADPCM transcoder with integral tone generation and method therefor
2125379355Data encoding using one or more adaptive decision trees

1994

2135334977ADPCM transcoder wherein different bit numbers are used in code conversion
2145323154Data compressing and expanding apparatus
2155319573Method and apparatus for noise burst detection in a signal processor
2165317522Method and apparatus for noise burst detection in a signal processor
2175309443Dynamic muting method for ADPCM coded speech
2185291484Relay and exchange system for time division multiplex data

1993

2195265126Voice recording and reproducing apparatus having perpendicular carrier modulation
2205253269Delta-coded lag information for use in a speech coder

1992

2215166958Coding apparatus with low-frequency and DC suppression
2225166954Adaptive system for measuring the broadband signal-to-noise ratio of a transmission channel
2235157343Electronic arrangement for receiving a modulated carrier signal
2245155743Digital data converter

1991

2254990914Method and apparatus for interpolative A/D conversion

1990

2264955037Apparatus and methods for recovering alignment from a non-ideally encoded multi-bit digital signal
2274951052Correction of systematic error in an oversampled analog-to-digital converter
2284944012Speech analyzing and synthesizing apparatus utilizing differential value-based variable code length coding and compression of soundless portions
2294930126Time division multiplex system suited for burst analog transmission
2304912765Voice band data rate detector
2314899350Signal communication capable of avoiding an audible reproduction of a sequence of information signals
2324897856Offset correction circuit for a sigma-delta coding device

1989

2334875222Information signal transmission system by predictive differential coding
2344860312Quality improvement for a digitally transmitted information signal
2354857928Method and arrangement for a sigma delta converter for bandpass signals
2364839923Method and apparatus for time companding an analog signal
2374839897Fault detecting system for ADPCM codec
2384831636Coding transmission equipment for carrying out coding with adaptive quantization

1988

2394788692Adaptive differential pulse code modulation system
2404774496Digital encoder and decoder synchronization in the presence of data dropouts
2414768203Signal-to-noise ratio testing in adaptive differential pulse code modulation
2424759038PCM transmission system
2434733219Converter circuit

1987

2444710957Data detection by statistical analysis
2454700360Extrema coding digitizing signal processing method and apparatus
2464686625Method and apparatus for generating a display of well logging measurements
2474656633Error concealment system

1986

2484630007Delta modulated signal sampling rate converter using digital means
2494617676Predictive communication system filtering arrangement
2504588981Double integration, delta-sigma, analog-digital coder
2514581746Technique for insertion of digital data bursts into an adaptively encoded information bit stream
2524569058Transmission system
2534567883Data compression of ECG data using delta modulation

1985

2544554671Delta modulated communication system
2554549304ADPCM Encoder/decoder with signalling bit insertion
2564542516ADPCM Encoder/decoder with zero code suppression
2574541101Process and device for voice interpolation in a transmission system for digitized voice
2584528551Digital to analog converter employing sigma-delta modulation for use in telephone systems
2594519085Differential data coding and decoding process and system restricting propagation of transmission errors
2604516241Bit compression coding with embedded signaling
2614509150Linear prediction coding for compressing of seismic data

1984

2624466440Heart pacer time-domain processing of internal physiological signals
2634449190Silence editing speech processor
2644439756Delta-Sigma modulator with switch capacitor implementation
2654438523Differential digital modulation and demodulation system with an analog signal-dependent sampling clock
2664437087Adaptive differential PCM coding

1982

2674363127Line signaling apparatus and techniques for digital data links
2684360713Echo detector particularly for speech interpolation communication systems
2694319082Adaptive prediction differential-PCM transmission method and circuit using filtering by sub-bands and spectral analysis
2704314370Wireless intercommunication system
2714314105Delta modulation method and system for signal compression

1981

2724301446Digital transmission system with a double analog integrator Delta Sigma coder and a double digital integrator Delta Sigma decoder
2734276649Receiver for digital signals in line code
2744270027Telephone subscriber line unit with sigma-delta digital to analog converter

1980

2754225963Arrangement for processing a delta modulation signal, in particular for decoding these signals
2764215311Adaptive delta-modulation system
2774184150Circuit arrangement for halving the sampling rate of a delta modulation signal

1979

2784179659Signal transmission system
2794174502Delta modulated digital signal detector
2804142066Suppression of idle channel noise in delta modulation systems

1978

2814122300Data transmission system and application thereof to the transmission of analog signals and of data in a network with delta modulation

1977

2824059800Digital multi-line companded delta modulator
2834039948Multi-channel differential pulse code modulation system
2844008378Multi-radix digital communications system with time-frequency and phase-shift multiplexing

1976

2853979676Delta modulation apparatus
2863962636Device for converting an incoming analog signal into an outgoing PCM signal
2873949299Signal coding for telephone communication system
2883949298Time shared delta modulation system
2893937897Signal coding for telephone communication system
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017