ClassID:

225859

H04L25/4902 - page 3 - CPC Classification

Classification description:

Baseband systems; Synchronous or start-stop systems, e.g. for Baudot code; Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems Pulse width modulation; Pulse position modulation

Recent Application in this class:
#601
20080130762
2008-06-05

Method for transmitting data

#602
20080130734
2008-06-05

Method and system for receiving pulse width keyed signals

#603
20080130685
2008-06-05

Method and apparatus for data transfer using a time division multiple frequency scheme supplemented with polarity modulation

#604
20080123730
2008-05-29

System and method for implementing a single-wire serial protocol

#605
20080112491
2008-05-15

Error detection and correction for base-band wireless systems

#606
20080088750
2008-04-17

Display Device with Speaker Grill

#607
20080086571
2008-04-10

Method of transmitting data including a structured linear database

#608
20080075153
2008-03-27

Method and apparatus for applying codes having pre-defined properties

#609
20080064966
2008-03-13

Devices, systems and methods for endocardial pressure measurement

#610
20080063044
2008-03-13

Burst control pulse generating circuit

#611
20080056399
2008-03-06

GMSK and OFDM nonlinearly and linearly amplified cellular and wireless networks

#612
20080049606
2008-02-28

Bidirectional communication

#613
20080046163
2008-02-21

Ignition control process

#614
20080037623
2008-02-14

Noncoherent UWB cooperative communications system

#615
20080031310
2008-02-07

Cross-correlated TDMA, spread spectrum, CDMA and OFDM systems

#616
20080013962
2008-01-17

Pulse-Modulated Signal Demodulation Circuit, and Photoreceiver Circuit and Electric Appliance Provided Therewith

#617
20080012688
2008-01-17

SECURE RFID BASED ULTRA-WIDEBAND TIME-HOPPED PULSE-POSITION MODULATION

#618
20070297487
2007-12-27

Modulating circuit, transmitting apparatus using the same, receiving apparatus and communication system

#619
20070273790
2007-11-29

Television apparatus

#620
20070250802
2007-10-25

Pulse link and apparatus for transmitting data and timing information on a single line

#621
20070237209
2007-10-11

Space-time coding method for a UWB pulse-type multi-antenna system

#622
20070223600
2007-09-27

Radio communication method and system for using pattern variation to identify pre-detection signal

#623
20070194827
2007-08-23

Device and method for pulse width modulation

#624
20070190953
2007-08-16

Method of generating uwb pulses

#625
20070177321
2007-08-02

Method for increasing the information density in signal-transmission lines

#626
20070159241
2007-07-12

Demodulator for demodulating pulse position modulated signal

#627
20070143080
2007-06-21

Signal-driven recovery of a digital pulse stream

#628
20070140115
2007-06-21

Method for selection of an available transmission channel by sending a negative decision value and an additional positive decision value and corresponding base station, mobile terminal and mobile radio network

#629
20070133801
2007-06-14

Pulse position based-chaotic modulation (PPB-CM) communication system and method

#630
20070133526
2007-06-14

Remote access communication system and control method thereof

#631
20070116135
2007-05-24

Communication system

#632
20070116059
2007-05-24

Circuit and method for synchronization

#633
20070110149
2007-05-17

Frequency offset differential pulse position modulation

#634
20070110126
2007-05-17

Radio communication system and communication apparatus

#635
20070110125
2007-05-17

Transmitting device, receiving device, and communication system

#636
20070098112
2007-05-03

Clock-edge modulated serial link with DC-balance control

#637
20070098062
2007-05-03

Signal transmitting and receiving method over wireless network and a reader

#638
20070094362
2007-04-26

Method for automatically configuring terminal equipment

#639
20070092265
2007-04-26

Multilevel pulse position modulation for efficient fiber optic communication

#640
20070086327
2007-04-19

Frequency offset differential pulse position modulation

#641
20070086326
2007-04-19

Frequency offset differential pulse position modulation

#642
20070071114
2007-03-29

Mobile multifrequency transmitter transmitting on frequencies based on geographic locations and a method thereof

#643
20070064587
2007-03-22

Frequency offset differential pulse position modulation

#644
20070058579
2007-03-15

Method for processing calls from multiple communication networks and equipment thereof

#645
20070053472
2007-03-08

Receivers and demodulators for TDMA and other modulated systems

#646
20070053471
2007-03-08

Antenna systems, receivers and demodulators for cross-correlated and other signals

#647
20070046512
2007-03-01

Data conversion system

#648
20070045551
2007-03-01

Camera module apparatus with IR-cut-coated window glass

#649
20070045550
2007-03-01

Miniature camera module with lens containing image sensor

#650
20070036230
2007-02-15

Transmitter for operating multiple devices

#651
20070036203
2007-02-15

Processor, modulators and transceivers for spread spectrum, CDMA, CSMA, OFDM, TDM, TDMA cross correlated and filtered systems

#652
20070025437
2007-02-01

Precision timing pulse width communications

#653
20070002943
2007-01-04

Suppressed carrier quadrature pulse modulator

#654
20060288277
2006-12-21

Communication apparatus and display method

#655
20060280112
2006-12-14

Signal transmitting apparatus, power supplying system, and serial communication apparatus

#656
20060279663
2006-12-14

Arrangement for and method of projecting a level image

#657
20060274838
2006-12-07

Agile RF band OFDM spread spectrum and cross-correlated systems

#658
20060269012
2006-11-30

Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data

#659
20060245765
2006-11-02

Methods of spread-pulse modulation and nonlinear time domain equalization for fiber optic communication channels

#660
20060245758
2006-11-02

Systems with spread-pulse modulation and nonlinear time domain equalization for fiber optic communication channels

#661
20060245757
2006-11-02

Apparatus with spread-pulse modulation and nonlinear time domain equalization for fiber optic communication channels

#662
20060239693
2006-10-26

Communication apparatus

#663
20060233278
2006-10-19

Method and apparatus for generating reference voltage to adjust for attenuation

#664
20060233233
2006-10-19

Method and device for receiving or transmitting a signal with encoded data

#665
20060226958
2006-10-12

System and method for power line communication

#666
20060222089
2006-10-05

System for multiplexing independent signals

#667
20060221924
2006-10-05

Mobile communications terminal for transmitting data frames in wireless lan and method thereof

#668
20060215709
2006-09-28

Code conversion circuit

#669
20060212903
2006-09-21

Moving picture processing device, information processing device, and program thereof

#670
20060203936
2006-09-14

Pulse detection in wireless communications system

#671
20060203713
2006-09-14

Efficient signal transmission methods and apparatus using a shared transmission resource

#672
20060192894
2006-08-31

Moving picture processing device, information processing device, and program thereof

#673
20060192537
2006-08-31

Power line communication using power factor correction circuits

#674
20060188002
2006-08-24

Method and apparatus for decoding an incident UWB signal with inter symbol interferences

#675
20060186915
2006-08-24

Method and apparatus for calibrating a multi-level current mode driver having a plurality of source calibration signals

#676
20060182246
2006-08-17

Maintenance information communication terminal, image forming apparatus provided with same, maintenance information management host, and communication method

#677
20060182166
2006-08-17

Multi-antenna communication system

#678
20060181631
2006-08-17

Moving picture processing device, information processing device, and program thereof

#679
20060179311
2006-08-10

System for providing device authentication in a wireless network

#680
20060171415
2006-08-03

Electronic system for vehicles and a method for reducing the electromagnetic interference on electronic systems in vehicles

#681
20060170453
2006-08-03

Low latency multi-level communication interface

#682
20060166619
2006-07-27

Method for adjusting acquisition speed in a wireless network

#683
20060160545
2006-07-20

Methods and apparatus for identifying asset location in communication networks

#684
20060159244
2006-07-20

Method and apparatus for quick modern reconnect

#685
20060146913
2006-07-06

TDMA, spread spectrum RF agile filtered signal transmission

#686
20060140600
2006-06-29

Image sensing apparatus with camera shake correction function

#687
20060140114
2006-06-29

Link throughput enhancer

#688
20060139493
2006-06-29

Displaying apparatus and control method thereof

#689
20060125690
2006-06-15

Methods and apparatus for identifying asset location in communication networks

#690
20060114315
2006-06-01

Mixed media telecommunication call manager

#691
20060112293
2006-05-25

Interface for compressed data transfer between host system and parallel data processing system

#692
20060109898
2006-05-25

Powerline communication PHY with a digital direct drive output stage

#693
20060093029
2006-05-04

Apparatus and method for grey encoding modulated data

#694
20060088121
2006-04-27

Clock modulation systems

#695
20060083320
2006-04-20

Demodulation of multiple signals

#696
20060072925
2006-04-06

Circuit arrangement for electrically isolated transmission of an electrical signal with an optocoupler

#697
20060072684
2006-04-06

Data communication for wired and wireless communication

#698
20060072647
2006-04-06

Hybrid communication and broadcast systems

#699
20060072646
2006-04-06

Broadband, ultra wideband and ultra narrowband reconfigurable interoperable systems

#700
20060067423
2006-03-30

Low power radio transmitter using pulse transmissions

#701
20060062329
2006-03-23

Apparatus and method for adaptive digital locking and soft evaluation of data symbols in a wireless digital communication system

#702
20060059507
2006-03-16

Method for storing and transmitting data generated by security module

#703
20060050831
2006-03-09

Speed-variable maximum delay clamping when using variable-delay random PWM switching

#704
20060050777
2006-03-09

Wide window decoder circuit for dual phase pulse modulation

#705
20060050427
2006-03-09

Multi-dimensional coding for high-density storage media applications

#706
20060045204
2006-03-02

Coordinated numerical control of sideband energy and modulation compression method for the radio frequency transmission of high speed data

#707
20060044623
2006-03-02

Apparatus, method, system, and computer program for managing image processing

#708
20060028363
2006-02-09

Precision pulse placement to form a binary pulse signal

#709
20060025168
2006-02-02

Synchronizing push to talk service in wireless communication system

#710
20060025086
2006-02-02

UWB telecommunication system and communication device to be used therein

#711
20060023797
2006-02-02

Signal transmitting/receiving system and method, signal transmitting apparatus and method, signal processing apparatus and method, recording medium, and program for transmitting/receiving signals unaffected by other apparatuses

#712
20060022730
2006-02-02

Hardware/software implementation of a PWM with enhanced features using a standard microprocessor

#713
20060018376
2006-01-26

Method for transmitting a digitized message of little information depth

#714
20060009170
2006-01-12

Numerical control of sideband energy and modulation compression method for the radio frequency transmission of high speed data

#715
20060002530
2006-01-05

Method and apparatus for fast V.90 modem startup

#716
20060002478
2006-01-05

Coding image signal

#717
20050289432
2005-12-29

Read enable generator for a turbo decoder deinterleaved symbol memory

#718
20050289246
2005-12-29

Interpreting I/O operation requests from pageable guests without host intervention

#719
20050286643
2005-12-29

Transmitter circuit, receiver circuit, clock data recovery phase locked loop circuit, data transfer method and data transfer system

#720
20050278132
2005-12-15

PWM dual store protection

#721
20050272383
2005-12-08

Transmitter and a method for transmitting data

#722
20050265503
2005-12-01

Method and system for enabling device functions based on distance information

#723
20050265428
2005-12-01

Agile clock mechanism and method for ultrawide bandwidth communications system

#724
20050261749
2005-11-24

Frame length modulation and pulse position modulation system

#725
20050259720
2005-11-24

Ultra wide bandwidth spread-spectrum communications system

#726
20050249276
2005-11-10

Method and system for receiving pulse width keyed signals

#727
20050243201
2005-11-03

Image data transmission circuit and image data display system

#728
20050242860
2005-11-03

FFT-based multichannel video receiver

#729
20050240607
2005-10-27

Method for communications using a communication protocol

#730
20050232371
2005-10-20

Method and apparatus for data transfer using wideband bursts

#731
20050228907
2005-10-13

Apparatus, method, and computer program product for monitoring and controlling a microcomputer using a single existing pin

#732
20050226624
2005-10-13

Optical pulse position modulation discriminator

#733
20050220187
2005-10-06

Demodulator for pulse-position modulated signals, demodulation method and signal receiver equipped with same

#734
20050219564
2005-10-06

Image forming device, pattern formation method and storage medium storing its program

#735
20050218294
2005-10-06

Image sensor

#736
20050213654
2005-09-29

Apparatus and method for digital phase control of a pulse width modulation generator for microprocessor/DSP in integrated circuits

#737
20050206446
2005-09-22

Demodulator for demodulating pulse position modulated signal

#738
20050185699
2005-08-25

Spread spectrum, cross-correlated and filtered modulated systems

#739
20050182330
2005-08-18

Devices, systems and methods for endocardial pressure measurement

#740
20050180380
2005-08-18

Method for transmitting data

#741
20050175120
2005-08-11

Clock-less serial data interface using a single pin

#742
20050175116
2005-08-11

OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation

#743
20050175076
2005-08-11

System and method for tracking an ultrawide bandwidth signal

#744
20050174145
2005-08-11

Data transmission/reception system

#745
20050165923
2005-07-28

Transmitter device and relay device for performing data transmission control

#746
20050163235
2005-07-28

Method and apparatus for improving error rates in multi-band ultra wideband communication systems

#747
20050146388
2005-07-07

Method and device for pulse width modulation

#748
20050141605
2005-06-30

Pulse modulator and PPM demodulation determining circuit employed in ultra wideband wireless communications

#749
20050140667
2005-06-30

Connection device capable of converting a pixel clock to a character clock

#750
20050138462
2005-06-23

System and method for managing protocol network failures in a cluster system

#751
20050135491
2005-06-23

Ultra-wideband communication system and method

#752
20050131922
2005-06-16

High bandwidth data transport system

#753
20050129092
2005-06-16

Ultra-wideband communication system and method

#754
20050128216
2005-06-16

Connection device capable of mixing an RGB graphics signal and a YUV video signal and related method

#755
20050128202
2005-06-16

GRAPHICS CARD FOR SMOOTHING THE PLAYING OF VIDEO

#756
20050123024
2005-06-09

Ultra-wideband communication system and method

#757
20050122183
2005-06-09

Pulse width modulator circuit having negative bias

#758
20050105606
2005-05-19

PPM receiving system and method using time-interleaved integrators

#759
20050101255
2005-05-12

Radio wave receiver, radio wave reception integrated circuit, wave clock, and repeater

#760
20050094784
2005-05-05

System and method of using variable pulses for symbology

#761
20050089090
2005-04-28

Method and apparatus for generating a distortionless pulse width modulated waveform

#762
20050089083
2005-04-28

System and method for fast acquisition of ultra wideband signals

#763
20050084041
2005-04-21

FSK signal demodulation circuit

#764
20050078942
2005-04-14

Information processing apparatus and method program, and recording medium

#765
20050078019
2005-04-14

Dual phase pulse modulation system

#766
20050077976
2005-04-14

Method for performing dual phase pulse modulation

#767
20050069053
2005-03-31

Adaptive pulse width discrimination using an asynchronous clock

#768
20050066101
2005-03-24

Method and device for connecting sensors or actuators to a bus system

#769
20050058223
2005-03-17

Remote control signal reception circuit, remote control signal reception method, remote control signal reception program, and computer-readable storage medium storing the program

#770
20050058107
2005-03-17

Method and system for repeat request in hybrid ultra wideband-bluetooth radio

#771
20050055551
2005-03-10

Interactive protocol for remote management of access control to scrambled data

#772
20050053208
2005-03-10

Process, arrangement, devices for seizure of a shared telephone line

#773
20050050202
2005-03-03

Application instance level workload distribution affinities

#774
20050046600
2005-03-03

Robust system for transmitting and receiving map data

#775
20050036571
2005-02-17

System and method for low power clear channel assessment

#776
20050036514
2005-02-17

Radio controlled clock and method for retrieving time information from time signals

#777
20050030885
2005-02-10

Frequency offset differential pulse position modulation

#778
20050013392
2005-01-20

Radio signal receiving method and radio signal receiver

#779
20050013390
2005-01-20

Hybrid UWB receiver with matched filters and pulse correlator

#780
20050005179
2005-01-06

Method and apparatus for calibrating a multi-level current mode driver having a plurality of source calibration signals

#781
18498109
2025-02-11

Method and apparatus for transmitting data

#782
17581510
2024-10-01

Timing synchronization in pulse position modulation (PPM) modems

#783
16678979
2020-11-10

Data recovery technique for time interleaved receiver in presence of transmitter pulse width distortion

#784
16457404
2020-11-24

Multi-tap decision feedback equalizer (DFE) architecture with split-path summer circuits

#785
16443078
2020-09-22

PWM signaling and encoding multiple statuses

#786
16285974
2020-02-11

Transmission apparatus and communication system

#787
16006101
2019-01-22

Multi-band radio frequency transmitter

#788
15961737
2019-04-02

Transmitter drive with improved transmitter performance and reliability

#789
15669434
2019-01-08

Noise mitigating quantizer for reducing nonlinear distortion in digital signal transmission

#790
15364602
2018-09-11

Pulse width modulation (PWM) to align clocks across multiple separated cards within a communication system

#791
15354867
2017-11-28

Shock sensor resonance detection for notch filter tuning

#792
15198928
2017-07-11

Transceiver for communication and method for controlling communication

#793
15172617
2017-05-02

Method for symbol clock recovery in pulse position modulation (PPM) systems

#794
15136594
2018-10-16

Phased information pulse method and apparatus

#795
15007515
2017-03-28

Communication system

#796
14863176
2016-11-08

Compact duty modulator

#797
14811311
2016-07-05

Dynamic offset cancellation in sigma-delta converter

#798
14795159
2016-08-23

Method for indirect measurement of the phase delay of a RF-PWM modulator

#799
14536913
2016-03-22

System and method for generating multi-band signal

#800
14464327
2015-02-17

Content delivery based on a light positioning system

#801
14464324
2015-06-09

Content delivery based on a light positioning system

#802
14195378
2015-03-03

Systems and methods for frequency detection

#803
14063518
2015-02-10

Digital power encoder for direct digital-RF transmitter

#804
14020263
2015-01-20

System and method for side band communication in SERDES transmission/receive channels

#805
13936128
2015-08-11

PCM to digital PWM using predistortion

#806
13873268
2014-11-18

Information transmitter with variable pulse width encoding

#807
13246705
2016-05-17

Appending bursts to create a super burst for improved building penetration