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公开(公告)号：BR8307184A
公开(公告)日：1984-08-07
申请号：BR8307184
申请日：1983-12-27
Applicant: IBM
Inventor： CROISIER ALAIN
Abstract: A multipoint connection system adapted to operate in the time-division multiplex mode. The system includes an output link (21), connected to the output of a control station (10) and to the input of each of the work stations (WS-1, WS-2), and a U-shaped input link (22) one leg of which has its end connected to the input of the control station and the other leg (22-2) of which is terminated by an impedance (Z2) and is connected to the output of each work station. The signals on the output link and on leg (22-2) travel in the same direction, thereby eliminating the need to provide adjustable means of determining the transmission times specific to each work station.
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公开(公告)号：AU2168883A
公开(公告)日：1984-07-05
申请号：AU2168883
申请日：1983-11-25
Applicant: IBM
Inventor： CROISIER ALAIN
Abstract: A multipoint connection system adapted to operate in the time-division multiplex mode. The system includes an output link (21), connected to the output of a control station (10) and to the input of each of the work stations (WS-1, WS-2), and a U-shaped input link (22) one leg of which has its end connected to the input of the control station and the other leg (22-2) of which is terminated by an impedance (Z2) and is connected to the output of each work station. The signals on the output link and on leg (22-2) travel in the same direction, thereby eliminating the need to provide adjustable means of determining the transmission times specific to each work station.
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公开(公告)号：CA1075840A
公开(公告)日：1980-04-15
申请号：CA286484
申请日：1977-09-12
Applicant: IBM
Inventor： CROISIER ALAIN , JACQUART CHRISTIAN A
Abstract: CIRCUIT FOR INTERFACING AN AUDIO FREQUENCY LINE TO CENTRAL UNIT An interface circuit interfacing an AF line to a central unit. This circuit makes use of an RF transformer mounted in such a way that the AF useful signal to be transmitted modulates an RF carrier generated in the primary winding of transformer and that the resulting modulated signal is demodulated (through DET) by a full wave rectifier and low pass filter in the secondary winding of the same before its being transmitted onto the line. FR9-76-004
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公开(公告)号：FR2389277A1
公开(公告)日：1978-11-24
申请号：FR7713995
申请日：1977-04-29
Applicant: IBM FRANCE
Inventor： CROISIER ALAIN , ESTEBAN DANIEL , GALAND CLAUDE
Abstract: A coding process, given a total number of available bits per unit time, allocates to each of a plurality of signal channels a number of bits proportional to information in the channel. The process is useful for transcoding BCPCM (Block Coded PCM) voice signals for lower bit rate and conserving transmission channel bandwidth.
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公开(公告)号：BE857998A
公开(公告)日：1977-12-16
申请号：BE180340
申请日：1977-08-22
Applicant: IBM
Inventor： CROISIER ALAIN , JACQUART CHRISTIAN
Abstract: A circuit for interfacing an AF line to a central unit makes use of an RF transformer Tr. Said transformer is so arranged that the source AF signal to be transmitted modulates an RF carrier generated in a primary winding of the transformer and the resulting modulated signal in the secondary winding is demodulated before being transmitted to a line which is thereby linked to the source.
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Patent Agency Ranking
公开(公告)号：FR2330117A1
公开(公告)日：1977-05-27
申请号：FR7533884
申请日：1975-10-31
Applicant: IBM FRANCE
Inventor： CROISIER ALAIN , GLAISE RENE
IPC: G11C27/04 , G11C19/18 , H01L21/33 , H01L21/339 , H01L29/70 , H01L29/762 , H03H11/26 , G11C19/28
Abstract: Arrangement allowing an input bucket brigade (BBD) stage to feed several other BBD stages in parallel with no loss of the signal transferred from the input stage to the subsequent ones. An input voltage corresponding to a charge quantity is stored in the second capacitor of the input BBD stage. The drain of the output transistor of the input stage is connected to a first BBD stage wherein the first capacitor is connected to the source electrode of the first transistor of a second BBD stage. The first transistors of both stages are controlled by the same clock pulses. When these transistors are turned on, the capacitors connected thereto are in series with the second capacitor of the input stage. Consequently, the same current will flow through these capacitors, which will thus store the same charges so that the charge representing the input voltage will be reproduced in the first capacitors of the two BBD stages connected to the input stage. Means are provided for grounding the terminal of the first capacitor in the first stage that is connected to the source of the first transistor in the second stage at the time the transfer of the duplicated charge takes place.
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公开(公告)号：DE2314194A1
公开(公告)日：1973-10-18
申请号：DE2314194
申请日：1973-03-22
Applicant: IBM
Inventor： CROISIER ALAIN
IPC: H04B3/04 , H04L27/18 , H04L27/233 , H04L27/22
Abstract: A method and apparatus for selectively reducing the phase shift contributions caused by transmission impairments such as noise and phase jitter, takes advantage of the fact that for phase modulated data signals capable of assuming one of M discrete values, when the noise phase shift due to impairment in transmission is less than pi /M in a system capable of discriminating between discrete data encoded phase shifts of 2 pi /M. Accordingly, each received discrete signal of phase magnitude theta is multiplied by 2 pi /M. The integral portion of the product represents the phase shift of data whereas the fractional value represents the phase shift caused by impairments. The fractional value is multiplied by a parameter alpha and algebraically combined with a reference value. The reference value is subtracted from the discrete signal theta to reduce the phase shift of the transmission impairments. By varying the value of alpha , the type of demodulation can be altered. For example, for alpha =0, the demodulator is coherent, while for alpha =1 the demodulator operates differentially. The reference value is in effect a predictor of the noise contribution and its magnitude is modified by the algebraic addition of the product of the fraction part and the parameter alpha .
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公开(公告)号：FR1515850A
公开(公告)日：1968-03-08
申请号：FR06007714
申请日：1966-01-04
Applicant: IBM FRANCE
Inventor： CROISIER ALAIN
IPC: H01H63/36
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公开(公告)号：FR1494357A
公开(公告)日：1967-09-08
申请号：FR06007961
申请日：1966-07-26
Applicant: IBM FRANCE
Inventor： CROISIER ALAIN , MORLEC EMILE , PQULET ALAIN
IPC: H04M19/02
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