Abstract: This invention relates to a distributed speech recognition method comprising at least one user terminal and at least one server which can communicate with each other by means of a telecommunication network. The inventive method comprises the following steps consisting in: at the user terminal, attempting to associate a saved form with the signal to be recognized and, independently of said step, transmitting a signal to the server, indicating the signal to be recognized; and, at the server, attempting to associate a saved form with the signal received.

Abstract: The subject of the invention is a substrate provided on at least part of at least one of its faces with a coating having photocatalytic properties, containing photocatalytic titanium oxide, especially crystallized in the anatase form, in an essentially mineral binder comprising at least one semiconducting metal oxide. The subject of the invention is also a process for obtaining said substrate, especially by thermal decomposition of precursors or by a vacuum deposition technique.

Abstract: The invention relates to a method of determining the complex impedance Z(fm) of a non-steady electrochemical system, comprising the following steps consisting in: bringing the system to a selected voltage condition and applying a sinusoidal signal with frequency fm thereto; immediately thereafter, measuring successive values for voltage and current at regular time intervals ?T; calculating the discrete Fourier transforms for voltage (E(f)) and current (I(f)), the voltage transform being calculated for the single frequency fm of the sinusoidal signal and the current transform being calculated for frequency fm and for two adjacent frequencies fm?1 and fm+1 on either side of frequency fm; and calculating the impedance using the following formula: Z(fm)=E(fm)/I*(fm), wherein I* denotes a corrected current such that Re[I*(fm)]=Re[I*(fm)]?(Re[I(fm+1)]+Re[I(fm?1)]2, Im[I*(fm)]=Im[I(fm)]?Im[I(fm+1)]+Im[I(fm?1)])/2.

Abstract: This invention relates to a distributed speech recognition method comprising at least one user terminal and at least one server which can communicate with each other by means of a telecommunication network. The inventive method comprises the following steps consisting in: at the user terminal, attempting to associate a saved form with the signal to be recognized and, independently of said step, transmitting a signal to the server, indicating the signal to be recognized; and, at the server, attempting to associate a saved form with the signal received.

Abstract: This invention relates to a distributed speech recognition system. The inventive system consists of: at least one user terminal comprising means for obtaining an audio signal to be recognized, parameter calculation means and control means which are used to select a signal to be transmitted; and a server comprising means for receiving the signal, parameter calculation means, recognition means and control means which are used to control the calculation means and the recognition means according to the signal received.

Abstract: The invention relates to a method of determining the complex impedance Z(fm) of a non-steady electrochemical system, comprising the following steps consisting in: bringing the system to a selected voltage condition and applying a sinusoidal signal with frequency fm thereto; immediately thereafter, measuring successive values for voltage and current at regular time intervals ?T; calculating the discrete Fourier transforms for voltage (E(f)) and current (I(f)), the voltage transform being calculated for the single frequency fm of the sinusoidal signal and the current transform being calculated for frequency fm and for two adjacent frequencies fm?1 and fm+1 on either side of frequency fm; and calculating the impedance using the following formula: Z(fm)=E(fm)/I*(fm), wherein I* denotes a corrected current such that Re[I*(fm)]=Re[I(fm)]?{Re[I(fm+1)]+Re[I(fm?1)]}/2, Im[I*(fm)]=Im[I(fm)]?{Im[I(fm+1)]+Im[I(fm?1)]}/2.

Abstract: The subject of the invention is a substrate provided on at least part of at least one of its faces with a coating having photocatalytic properties, containing photocatalytic titanium oxide, especially crystallized in the anatase form, in an essentially mineral binder comprising at least one semiconducting metal oxide.

Abstract: The present invention relates to copolymers, to a process for their preparation and to their use for the production of ionically conductive materials. A copolymer according to the invention consists of monomer units corresponding to the formula --CH.sub.2 --O--CHR--CH.sub.2 O (I) and monomer units corresponding to the formula --CH.sub.2 --CHR'--O-- (II), in which: R denotes a hydrogen atom, a linear or branched alkyl radical containing from 1 to 8 carbon atoms or a radical CH.sub.3 (--O--CH.sub.2 --CH.sub.2).sub.n --O--CH.sub.2 --, in which 1.ltoreq.n.ltoreq.10; R' denotes an aliphatic radical containing an unsaturation which can be polymerized by a radical route and inert in the conditions of cationic polymerization. The copolymers can be obtained by cationic polymerization of the appropriate oxirane and dioxolane. Application to the production of ionically conductive materials.

Abstract: An apparatus displays the torque reached by a tightening tool on a case which is independent from the tool proper. For this purpose, the tool has diodes for transmitting infrared radiation, for example, while the case has diodes for receiving this radiation. In this way, the tool may be employed in any position while the case is placed in a visible region and displays the value of the torque applied to the part to be tightened.

Abstract: Distributed arithmetic oversampling recursive digital filter comprising a recursive part constituted by q registers of a circulating nature, a non-recursive part of order p constituted by series registers, a memory divided into N memory blocks, a modulo N counter with .alpha. outputs, an adder--subtracter connected to the memory, an accumulator register, and a frequency clock f.sub.s. The filter is characterized in that the non-recursive part only comprises K series registers, K being an integer defined by the double inequality:(K-1)N+2.sup..alpha. -N.ltoreq.p+P-1.ltoreq.KN+2.sup..alpha. -Nand in that it comprises multiplexers able to make these K registers recirculating N-1 times out of N and circulating 1 time out of N, these multiplexers being controlled by the outputs of the counter.

Abstract: Digital processing circuit forming a weighted sum of digital signals. It comprises n groups of M series registers (10/1, . . . , 10/nM) into which are introduced the signals to be processed, n multiplexers (15/1, 15/2, . . . , 15/n), a memory (20) containing precalculated quantities characteristic of the weighted sum to be formed, said memory having a capacity of 2 .sup..beta.+n words distributed into different blocks, a modulo M counter (25), an adder-subtracter (30) connected to the memory, an accumulator-register (40) connected to the adder-subtracter and a clock (50) actuating the counter and the registers. The circuit is in that the memory is subdivided into [M-(2.sup..beta. -M)] blocks of 2.sup.n words and into (2.sup..beta. -M) blocks of 2.sup.n+1 words, said blocks being selected by the bits supplied to the outputs of the counter, in that it comprises supplementary series registers, whose number is at the most equal to 2.sup..beta.

Abstract: Delta-Sigma noise-shaping coder with two analog integrators and Delta-Sigma decoder with two digital integrators. The coder comprises an operational amplifier with two analog integrators in its feedback loop and two cascaded flipflops both connected to the input of the operational amplifier through resistors having a predetermined ratio. The configuration of the integrators is particular and results of the identification of the z-transfer function of the coder to be designed with the p-transfer function of a known integrator (p, Laplace's variable). The decoder comprises a digital integrator-filter of order two and two cascaded flipflops both connected to the input of the filter through amplifiers having gains in a predetermined ratio.