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FRANCE TELECOM

FR953 patents

Top patents by PatentIndex Score

US6713356B1Mar 30, 2004

Method for making a semiconductor device comprising a stack alternately consisting of silicon layers and dielectric material layers

FRANCE TELECOM230 citations99

US5465390ANov 7, 1995

Method for laying out the infrastructure of a cellular communications network

FRANCE TELECOM166 citations99

US6537370B1Mar 25, 2003

Process for obtaining a layer of single-crystal germanium on a substrate of single-crystal silicon, and products obtained

FRANCE TELECOM158 citations98

US6117750ASep 12, 2000

Process for obtaining a layer of single-crystal germanium or silicon on a substrate of single-crystal silicon or germanium, respectively

FRANCE TELECOM123 citations98

US5990013ANov 23, 1999

Process for treating a semiconductor substrate comprising a surface-treatment step

FRANCE TELECOM307 citations98

US7680670B2Mar 16, 2010

Dimensional vector and variable resolution quantization

FRANCE TELECOM54 citations97

US6993070B1Jan 31, 2006

Method and system of iteratively detecting and decoding received symbols coupled with re-estimation of the coefficients of the transmission channel

FRANCE TELECOM70 citations97

US6807410B1Oct 19, 2004

Electronic payment process and system for implementing this process

FRANCE TELECOM147 citations97

US6122763ASep 19, 2000

Process for transmitting information bits with error correction coding and decoder for the implementation of this process

FRANCE TELECOM191 citations97

US6065147AMay 16, 2000

Process for transmitting information bits with error correction coding, coder and decoder for the implementation of this process

FRANCE TELECOM170 citations97

US5452288ASep 19, 1995

Method for the transmission of digital data in radio paging systems and corresponding radio paging receiver

FRANCE TELECOM244 citations97

US5446747AAug 29, 1995

Error-correction coding method with at least two systematic convolutional codings in parallel, corresponding iterative decoding method, decoding module and decoder

FRANCE TELECOM457 citations97

US6429098B1Aug 6, 2002

Process for obtaining a layer of single-crystal germanium or silicon on a substrate of single-crystal silicon or germanium, respectively, and multilayer products obtained

FRANCE TELECOM42 citations96

US6307939B1Oct 23, 2001

Method and equipment for allocating to a television program, which is already conditionally accessed, a complementary conditional access

FRANCE TELECOM204 citations96

US5812965ASep 22, 1998

Process and device for creating comfort noise in a digital speech transmission system

FRANCE TELECOM95 citations96

US5771112AJun 23, 1998

Reconfigurable device for insertion-extraction of wavelengths

FRANCE TELECOM112 citations96

US5717768AFeb 10, 1998

Process for reducing the pre-echoes or post-echoes affecting audio recordings

FRANCE TELECOM88 citations96

US5678220AOct 14, 1997

Device for rejection of the image signal of a signal converted to an intermediate frequency

FRANCE TELECOM106 citations96

US5661806AAug 26, 1997

Process of combined authentication of a telecommunication terminal and of a user module

FRANCE TELECOM249 citations96

US5563897AOct 8, 1996

Method for detecting information bits processed by concatenated block codes

FRANCE TELECOM269 citations96

US5330617AJul 19, 1994

Method for etching integrated-circuit layers to a fixed depth and corresponding integrated circuit

FRANCE TELECOM60 citations96

US5299041AMar 29, 1994

Active matrix, high definition, liquid crystal display structure

FRANCE TELECOM147 citations96

US5218637AJun 8, 1993

Method of transferring a secret, by the exchange of two certificates between two microcomputers which establish reciprocal authorization

FRANCE TELECOM193 citations96

US7720676B2May 18, 2010

Integrated monolithic laser-modulator component with multiple quantum well structure

FRANCE TELECOM99 citations95

US5631768AMay 20, 1997

Technical field of optoelectronics

FRANCE TELECOM87 citations95

US5615265AMar 25, 1997

Process for the transmission and reception of conditional access programs controlled by the same operator

FRANCE TELECOM117 citations95

US5596662AJan 21, 1997

Multichannel optical connection method for optical fibers

FRANCE TELECOM70 citations95

US5589967ADec 31, 1996

Method and device for transmitting and switching packets in an optical network

FRANCE TELECOM70 citations95

US5301233AApr 5, 1994

Process for the transmission and reception of personalized programs

FRANCE TELECOM150 citations95

US5193002AMar 9, 1993

Apparatus for the coding/decoding of image signals

FRANCE TELECOM76 citations95

US5187122AFeb 16, 1993

Process for fabricating an integrated circuit using local silicide interconnection lines

FRANCE TELECOM142 citations95

US6879290B1Apr 12, 2005

Compact printed “patch” antenna

FRANCE TELECOM106 citations94

US6282167B1Aug 28, 2001

OFDM signal organized so as to simplify reception

FRANCE TELECOM85 citations94

US6014646AJan 11, 2000

Process for making a payment using an account manager

FRANCE TELECOM250 citations94

US5991413ANov 23, 1999

Process for the acceptance of a virtual prepaid card use request permitting the reuse of its serial number

FRANCE TELECOM397 citations94

US5864806AJan 26, 1999

Decision-directed frame-synchronous adaptive equalization filtering of a speech signal by implementing a hidden markov model

FRANCE TELECOM279 citations94

US5812674ASep 22, 1998

Method to simulate the acoustical quality of a room and associated audio-digital processor

FRANCE TELECOM130 citations94

US5748815AMay 5, 1998

Optical component adapted to monitor a multiwavelength link and add-drop multiplexer using this component, application to optical networks

FRANCE TELECOM77 citations94

US5742681AApr 21, 1998

Process for the broadcasting of programmes with progressive conditional access and separation of the information flow and the corresponding receiver

FRANCE TELECOM128 citations94

US5726785AMar 10, 1998

Optical add-drop multiplexer using optical circulators and photoinduced Bragg gratings

FRANCE TELECOM99 citations94

US5581572ADec 3, 1996

Wavelength-tunable, distributed bragg reflector laser having selectively activated, virtual diffraction gratings

FRANCE TELECOM91 citations94

US5495098AFeb 27, 1996

Smart card updating process

FRANCE TELECOM69 citations94

Showing the top 50 of 953 patents by PatentIndex Score.

FRANCE TELECOM

Top patents by PatentIndex Score

Method for making a semiconductor device comprising a stack alternately consisting of silicon layers and dielectric material layers

Method for laying out the infrastructure of a cellular communications network

Process for obtaining a layer of single-crystal germanium on a substrate of single-crystal silicon, and products obtained

Process for obtaining a layer of single-crystal germanium or silicon on a substrate of single-crystal silicon or germanium, respectively

Process for treating a semiconductor substrate comprising a surface-treatment step

Dimensional vector and variable resolution quantization

Method and system of iteratively detecting and decoding received symbols coupled with re-estimation of the coefficients of the transmission channel

Electronic payment process and system for implementing this process

Process for transmitting information bits with error correction coding and decoder for the implementation of this process

Process for transmitting information bits with error correction coding, coder and decoder for the implementation of this process

Method for the transmission of digital data in radio paging systems and corresponding radio paging receiver

Error-correction coding method with at least two systematic convolutional codings in parallel, corresponding iterative decoding method, decoding module and decoder

Process for obtaining a layer of single-crystal germanium or silicon on a substrate of single-crystal silicon or germanium, respectively, and multilayer products obtained

Method and equipment for allocating to a television program, which is already conditionally accessed, a complementary conditional access

Process and device for creating comfort noise in a digital speech transmission system

Reconfigurable device for insertion-extraction of wavelengths

Process for reducing the pre-echoes or post-echoes affecting audio recordings

Device for rejection of the image signal of a signal converted to an intermediate frequency

Process of combined authentication of a telecommunication terminal and of a user module

Method for detecting information bits processed by concatenated block codes

Method for etching integrated-circuit layers to a fixed depth and corresponding integrated circuit

Active matrix, high definition, liquid crystal display structure

Method of transferring a secret, by the exchange of two certificates between two microcomputers which establish reciprocal authorization

Method and device for spectral reconstruction of an audio signal

Transmission error concealment in an audio signal

Home-based remote medical assistance

Videoconference system

Telecommunications network with fixed and mobile subscribers

Compact printed antenna for radiation at low elevation

Smart card based system for telephone-securized transactions

Algebraic code-excited linear prediction speech coding method

Integrated monolithic laser-modulator component with multiple quantum well structure

Technical field of optoelectronics

Process for the transmission and reception of conditional access programs controlled by the same operator

Multichannel optical connection method for optical fibers

Method and device for transmitting and switching packets in an optical network

Process for the transmission and reception of personalized programs

Apparatus for the coding/decoding of image signals

Process for fabricating an integrated circuit using local silicide interconnection lines

Compact printed “patch” antenna

OFDM signal organized so as to simplify reception

Process for making a payment using an account manager

Process for the acceptance of a virtual prepaid card use request permitting the reuse of its serial number

Decision-directed frame-synchronous adaptive equalization filtering of a speech signal by implementing a hidden markov model

Method to simulate the acoustical quality of a room and associated audio-digital processor

Optical component adapted to monitor a multiwavelength link and add-drop multiplexer using this component, application to optical networks

Process for the broadcasting of programmes with progressive conditional access and separation of the information flow and the corresponding receiver

Optical add-drop multiplexer using optical circulators and photoinduced Bragg gratings

Wavelength-tunable, distributed bragg reflector laser having selectively activated, virtual diffraction gratings

Smart card updating process