公开(公告)号：US11290224B2

公开(公告)日：2022-03-29

申请号：US16868422

申请日：2020-05-06

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Alessandro Tomasoni ,  Daniele Lo Iacono ,  Fabio Osnato

IPC: H04L5/00 ,  H04B1/04 ,  H04B1/06 ,  H04L27/36 ,  H04W52/02 ,  G16Y10/75 ,  H04W84/12

Abstract: A method of operating a radio transmitter configured to transmit at least one sequence of logic values by transmitting transmission signals selected in a constellation diagram having a certain cardinality comprises selecting said transmission signals out of a first subset of transmission signals in said constellation diagram, said first subset comprising a first number of transmission signals, and a second subset of transmission signals in said constellation diagram, said second subset comprising a second number of transmission signals, wherein. The transmission signals in the second subset of transmission signals have an energy higher than the transmission signals in the first subset of transmission signals. The sum of said first number of transmission signals and said second number of transmission signals is less than said cardinality.

公开(公告)号：US12260910B2

公开(公告)日：2025-03-25

申请号：US18148380

申请日：2022-12-29

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Fabio Enrico Carlo Disegni ,  Marcella Carissimi ,  Alessandro Tomasoni ,  Daniele Lo Iacono

IPC: G11C13/00

Abstract: The present disclosure is directed to a sense amplifier architecture for a memory device having a plurality of memory cells. Groups of non-volatile memory cells store respective codewords formed by stored logic states, logic high or logic low, of the memory cells of the group. The sense amplifier architecture has a plurality of sense amplifier reading branches, each sense amplifier reading branch coupled to a respective memory cell and configured to provide an output signal, which is indicative of a cell current flowing through the same memory cell; a comparison stage, to perform a comparison between the cell currents of memory cells of a group; and a logic stage, to determine, based on comparison results provided by the comparison stage, a read codeword corresponding to the group of memory cells. Information may be stored in different subsets of codewords, the sense amplifier architecture in this case having a subset definition circuit, to allow a preliminary determination of the subset to which a codeword to be read belongs to, based on reference signals.

公开(公告)号：US09025689B2

公开(公告)日：2015-05-05

申请号：US13873081

申请日：2013-04-29

Applicant: STMicroelectronics S.r.l.

Inventor： Massimiliano Siti ,  Alessandro Tomasoni ,  Marco Ferrari ,  Sandro Bellini ,  Oscar Volpatti

IPC: H04L1/00 ,  H04B7/04 ,  H04L25/03 ,  H04L1/06

CPC classification number: H04L1/0055 ,  H04B7/0413 ,  H04L1/005 ,  H04L1/0064 ,  H04L1/0656 ,  H04L25/03171 ,  H04L25/03292 ,  H04L25/03331 ,  H04L25/03891 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: An embodiment of an arrangement detects sequences of digitally modulated symbols from multiple sources. The arrangement identifies a suitable set of candidate values for at least one transmitted sequence of symbols and determines for each candidate value a set of sequences of transmitted symbols. The arrangement estimates at least one further set of sequences of transmitted symbols, calculates a metric for each sequence of transmitted symbols, and selects the sequence that maximizes the metric. At the end, a-posteriori bit soft output information for the selected sequence is calculated from the metrics for said sequences. Generally, these calculations are based on the information coming from a channel-state-information matrix and a-priori information on the modulated symbols from a second module, such as a forward error-correction-code (ECC) decoder.

Abstract translation: 布置的实施例检测来自多个源的数字调制符号的序列。 该装置为至少一个发送的符号序列识别适当的一组候选值，并且为每个候选值确定一组发送符号的序列。 该装置估计至少一组另外的发送符号序列集合，计算发送符号的每个序列的度量，并选择使度量最大化的序列。 最后，从所述序列的度量计算所选序列的后验位软输出信息。 通常，这些计算基于来自信道状态信息矩阵的信息和来自第二模块（诸如前向纠错码（ECC））解码器的调制符号的先验信息。