Abstract:
Filtered digital information representative of the power of an output signal from an amplifier is generated, and control information from a setpoint representative of a desired power for the output signal is generated from the desired response time for the establishment of the power and from a model to be followed for the establishment. In addition, a gain control and a bias current control are established for each initial variable-gain amplifier from the filtered digital information, from the control information and from a polynomial digital regulation of the RST type whose polynomial coefficients are determined from input parameters comprising characteristics of each variable-gain amplifier and from characteristics of the filter generating the filtered digital information.
Abstract:
A system and method is provided for estimating a sequence of N bits ({circumflex over (x)}0{circumflex over (x)}1 . . . {circumflex over (x)}N−1) corresponding to a received sequence of M digital data (r0r1 . . . rM−1). The method includes determining candidate sequences of MRS digital data from a reduced reference sequence space comprising 2NRS reduced reference sequences of MRS reference digital data (s0s1 . . . sMRS−1), MRS being less than M, and 2NRS being less than or equal to 2N. The method further includes making up each candidate sequence with remaining reference symbols to obtain at least one complete candidate sequence of M digital data, and determining the sequence of N bits ({circumflex over (x)}0{circumflex over (x)}1 . . . {circumflex over (x)}N−1) from the complete candidate sequences.
Abstract:
An ultra wide band (UWB) device includes a first control unit for controlling a UWB data stream according to a first operation mode, and a second control unit for controlling the UWB data stream according to a low duty cycle operation mode. An activation unit selectively activates the first and second control units.
Abstract:
Successive sequences of interleaved data samples extracted from a virtual memory having L0 columns and C0 rows are de-interleaved. The de-interleaving includes receiving each sequence of the interleaved data samples, and writing row by row the received sequences of interleaved data samples in a de-interleaving memory array having L rows and C columns, with L being greater or equal to L0 and C being greater or equal to C0. The data samples stored in the de-interleaving memory array are de-interleaved sub-array by sub-array. Each sub-array is a square cluster array having a number SQ of rows and columns. A cluster array is a row of the square cluster array comprising SQ data samples, with the number L of rows and the number C of columns of the de-interleaving memory array being multiples of the number SQ of rows and columns.
Abstract:
Successive groups of N bits are delivered at a delivery frequency Fe greater than a predetermined frequency PRF. At least one of the successive groups includes at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF. This digital cue is converted into the base pulse, and the base pulse is filtered using a high-pass filter for providing a pulse of the ultra wideband type within the window with a temporal accuracy equal to 1/N*Fe.
Abstract translation:N个比特的连续组以大于预定频率PRF的传送频率Fe传送。 连续组中的至少一个包括至少一个位的至少一个子群,其限定长度为1 / PRF的窗口内的至少一个基本脉冲的位置和形状的至少一个数字提示。 该数字提示被转换成基本脉冲,并且使用高通滤波器对基本脉冲进行滤波,以便以等于1 / N * Fe的时间精度在窗口内提供超宽带类型的脉冲。
Abstract:
A data cache memory coupled to a processor including processor clusters are adapted to operate simultaneously on scalar and vectorial data by providing data locations in the data cache memory for storing data for processing. The data locations are accessed either in a scalar mode or in a vectorial mode. This is done by explicitly mapping the data locations that are scalar and the data locations that are vectorial.
Abstract:
A calibration is performed tone per tone during interframe spacing. A peak detection is used for measuring the level of the corresponding signal, and a gain correction coefficient is stored for correcting the digital complex modulation coefficients provided by the mapping.
Abstract:
When delivering a broadband service, such as xDSL, without inband POTS, it is necessary to separate the analogue POTS signal and the xDSL signal from each other at both the CO (Central Office) and the CP (Customer's Premises). This can be achieved by using an active POTS splitter. The present invention incorporates test functionality for the line between the CP and the CO, or ONU (Optical Network Unit), in the POTS splitter. This enables two-sided measurements on the line, both during installation and during operation. The measurements are performed at the CO and upon request, or when the test device automatically sends a test message/signal. In this way there is no need for field technicians at the CP side. The POTS splitter can have a unique identity code that is transmitted to the CO each time a test is started, or on receipt of a request from the CO.
Abstract:
A power amplification device includes an input for receiving a signal having a useful or desired frequency band, and power amplification circuitry of the delta-sigma type connected to the input. The power amplification circuitry exhibits an order greater than or equal to one in the useful frequency band, and an order greater than or equal to one outside the useful frequency band.
Abstract:
A device for decoding an incident FEC encoded packet of data within an ARQ scheme. The device includes a processor or processing means for performing successive decoding processes of successive intermediate FEC code encoded packets related to the incident FEC code encoded packet. The processor or processing means includes a FEC decoder. The processor or processing means included a determination unit or determination means for determining initial decoding conditions from the FEC code decoding result concerning the preceding intermediate FEC code encoded packet and from the current intermediate FEC code encoded packet, and the FEC decoder is for performing the current FEC code decoding using the initial decoding conditions.