| Patent | Date |
|---|
Arrangement for cancelling a composite echo signal
Grant 4,862,450 - Guidoux August 29, 1 | 1989-08-29 |
Differential pulse code modulation arrangement, associated decoding arrangement and transmission system comprising at least such an encoding or decoding arrangement
Grant 4,860,314 - Boisson August 22, 1 | 1989-08-22 |
Analogue scrambling system with dynamic band permutation
Grant 4,852,166 - Masson July 25, 1 | 1989-07-25 |
Apparatus for detecting and discriminating phase jumps in a periodic signal and its application to a telephone tone signal with phase inversions
Grant 4,829,566 - Lassaux , et al. May 9, 1 | 1989-05-09 |
Signal analysing and synthesizing filter bank system
Grant 4,799,179 - Masson , et al. January 17, 1 | 1989-01-17 |
Apparatus for controlling transmission power over a digital radio communication channel
Grant 4,777,653 - Bonnerot , et al. October 11, 1 | 1988-10-11 |
Processor to carry out data processing in different modes and multiplication device suitable for such a processor
Grant 4,755,965 - Mary , et al. July 5, 1 | 1988-07-05 |
Diversity channel data receiver with automatic alignment over a .+-.3.5-bit range
Grant 4,744,095 - Cornet , et al. May 10, 1 | 1988-05-10 |
Echo canceller and center clipper control arrangement
Grant 4,679,230 - Lassaux , et al. July 7, 1 | 1987-07-07 |
Self-adaptive equalizer for baseband data signals
Grant 4,577,329 - Brie , et al. March 18, 1 | 1986-03-18 |
Method and apparatus for reducing the convergence time of an echo canceller
Grant 4,571,720 - Chevreau , et al. February 18, 1 | 1986-02-18 |
Transmission system using differential pulse code modulation with adaptive prediction
Grant 4,520,491 - Raulin , et al. May 28, 1 | 1985-05-28 |
Acoustic feedback cancelling electro-acoustic transducer network
Grant 4,485,272 - Duong , et al. November 27, 1 | 1984-11-27 |
System of transmitting information between a central station and sub-stations
Grant 4,472,802 - Pin , et al. September 18, 1 | 1984-09-18 |
Off-hook detector with reduced sensitivity to common mode
Grant 4,456,791 - Forestier June 26, 1 | 1984-06-26 |
Hands free telephone with switchable gain in the two speech signal paths
Grant 4,454,384 - Ferrieu , et al. June 12, 1 | 1984-06-12 |
System for tele-locating regenerative repeaters
Grant 4,425,662 - Jeandot January 10, 1 | 1984-01-10 |
Automatic sound level control of telephone station
Grant 4,386,236 - Ferrieu , et al. May 31, 1 | 1983-05-31 |
Filter device comprising switched-capacitance integrating networks
Grant 4,383,228 - Gaillard May 10, 1 | 1983-05-10 |
Transmission system using differential pulse code modulation
Grant 4,361,893 - Bonnerot November 30, 1 | 1982-11-30 |
Apparatus for detecting the closure of a subscriber's line during ringing
Grant 4,356,355 - Ferrieu , et al. October 26, 1 | 1982-10-26 |
Electronic subscriber junctor
Grant 4,356,354 - Ferrieu October 26, 1 | 1982-10-26 |
Circuit for rapidly resynchronizing a clock
Grant 4,309,662 - Baudoux January 5, 1 | 1982-01-05 |
Device for supervising a transmultiplexer
Grant 4,304,000 - Bonnerot , et al. December 1, 1 | 1981-12-01 |
Balancing amplifier
Grant 4,296,383 - Jeandot , et al. October 20, 1 | 1981-10-20 |
Synchronizing circuit for a digital arrangement
Grant 4,229,825 - Guidoux October 21, 1 | 1980-10-21 |
Arrangement for processing a delta modulation signal, in particular for decoding these signals
Grant 4,225,963 - Ferrieu September 30, 1 | 1980-09-30 |
Device for measuring the range of a moving target and the speed at which it approaches or recedes
Grant 4,205,314 - Strauch May 27, 1 | 1980-05-27 |
Radio-electric system for locating a given object
Grant 4,151,525 - Strauch , et al. April 24, 1 | 1979-04-24 |
Frequency modulator for high-precision range measurements
Grant 4,107,679 - Strauch , et al. August 15, 1 | 1978-08-15 |
Arrangement for processing auxiliary signals in a frequency multiplex transmission system
Grant 4,101,738 - Bellanger , et al. July 18, 1 | 1978-07-18 |
Discrete transversal filter
Grant 4,092,618 - Guidoux May 30, 1 | 1978-05-30 |
Device for connecting optical fibers
Grant 4,062,620 - Pirolli December 13, 1 | 1977-12-13 |
Double odd discrete fourier transformer
Grant 4,051,357 - Bonnerot September 27, 1 | 1977-09-27 |
Circuit arrangement for digitally processing a given number of channel signals
Grant 3,971,922 - Bellanger , et al. July 27, 1 | 1976-07-27 |
Arrangement for simultaneously producing signals having an increasing frequency and signals having a decreasing frequency
Grant 3,962,653 - Basset June 8, 1 | 1976-06-08 |
Vocoder system using delta modulation
Grant 3,952,164 - David , et al. April 20, 1 | 1976-04-20 |
Time multiplexed digital filter
Grant 3,930,147 - Bellanger , et al. December 30, 1 | 1975-12-30 |
Low pass nonrecusine digital filter
Grant 3,928,755 - Bellanger , et al. December 23, 1 | 1975-12-23 |
Receiver for synchronous data signals, including a detector for detecting transmission speed changes
Grant 3,876,833 - Breant April 8, 1 | 1975-04-08 |
Automatic Equalizing Arrangement For A Data Transmission Channel
Grant 3,868,603 - Guidoux February 25, 1 | 1975-02-25 |
System For Synchronous Data Transmission Through A Digital Transmission Channel
Grant 3,819,853 - Stein June 25, 1 | 1974-06-25 |
Numerical Filter And Digital Data Transmission System Including Said Filter
Grant 3,801,913 - Daguet , et al. April 2, 1 | 1974-04-02 |
Repeater Fault Localization System
Grant 3,758,728 - Le Roch , et al. September 11, 1 | 1973-09-11 |
Detection Circuit Including Compensation For The Threshold Of The Forward Characteristic Of A Semiconductor Junction
Grant 3,571,735 - Ducamus , et al. March 23, 1 | 1971-03-23 |
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