Abstract:
A system and/or method for recognizing and tracking the sampling phase of a signal received in a local terminal from a remote terminal in digital synchronous transmission systems, said local terminal being associated with a local clock signal also used to synchronize the remote terminal. According to this invention said system for recognizing and tracking the sampling phase (DPA) comprises means (QUAD; QUAD1) able to obtain a plurality of clock signals with determined phase differences to each other (CK, CKQ, CKN, CKQN) from said local clock signal (CK), and means (1,2,3,5,6) able to select a sampling clock signal (CKSEL) of the received signal (DTP) among the plurality of clock signals (CK, CKQ,CKN, CKQN) with determined phase differences to each other, which has a phase substantially coinciding with the phase of the signal received (DTP).
Abstract:
On échantillonne la parole de façon à obtenir des trames vocales successives comportant chacune un nombre prédéterminé d'échantillons. A chaque trame vocale on détermine des paramètres d'un modèle de prédiction linéaire à excitation par code, ces paramètres comportant un mot numérique d'excitation à long terme v i extrait d'un répertoire codé adaptatif DLT et un gain à long terme associé Ga, ainsi qu'un mot d'excitation à court terme cj extrait d'un répertoire codé algébrique DCT et un gain à court terme associé Gc. On somme SM le produit du mot extrait d'excitation à long terme par le gain à long terme associé, avec le produit du mot extrait d'excitation à court terme par le gain à court terme associé, on filtre le mot numérique sommé dans un filtre passe-bas FLCT ayant une fréquence de coupure supérieure au quart de la fréquence d'échantillonnage et inférieure à la moitié de celle-ci, et on met à jour le répertoire codé adaptatif avec le mot filtré.
Abstract:
The invention relates to an encapsulating device for electrical circuitry, which includes at least one pin which is directly attachable to metal such as by welding. This is especially suitable for battery pack applications whereby such an encapsulating device is incorporated in the battery pack and is used as an encapsulating device for the battery protection circuitry.
Abstract:
AC/DC-converters (1) comprise rectifiers (10) for rectifying AC-signals into DC-signals. By providing these AC/DC-converters (1) with voltage dividing capacitors (3,6,5) located between converter-input (12,13) and rectifier (10), the rectifier (10) can be better integrated, due to no longer receiving the entire input voltage present at the converter-input (12,13) of the AC/DC-converter (1), without a conventional transformer comprising an iron core and windings being required. Such an AC/DC-converter (1) is smal sized, of light weight and low costly made. Preferably, a resistor (2,4) is added to a voltage dividing capacitor (3,5) for filtering peak signals, the converter-input (12,13) is symmetric, said rectifier (10) comprises two diodes (20,23) and two transistors (21,22) and a zero-cross detector (24) for switching said transistors (21,22), said AC/DC-converter (1) comprises a down-converter (11) located between said rectifier (10) and converter-output (14,15) for further down-converting purposes and comprising an inductor (8) and a regulator for regulating inductor/capacitor-energies, with buffer capacitors (7,9) being present parallelly to said down-converter (11) for stabilizing purposes, to get a transformerless wallplug adapter.
Abstract:
The present invention provides methods of, computer programs for and apparatus for control and/or observation of a device with communication capabilities by a controller device with hypertext or hypermedia communications capabilities. More particular, but not exclusively, the present invention relates to methods of, computer programs for and apparatus for control and observation of a consumer electronics device with communications capability form a mobile controller device with hypertext or hypermedia communications capability over a proximity bearer.
Abstract:
L'estimation de la vitesse de déplacement d'un terminal mobile d'un système de communication sans fil dialoguant avec une station, comporte un calcul d'une auto-covariance normalisée de la puissance instantanée du signal reçu par le terminal ou par la station.