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    DIGITAL AM DEMODULATOR
    1.
    发明专利
    DIGITAL AM DEMODULATOR 失效

    公开(公告)号：JP2001028608A

    公开(公告)日：2001-01-30

    申请号：JP2000160376

    申请日：2000-05-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： DELLA TORRE LUIGI ,  RONCHI MARCO ,  VITALI ANDREA

    IPC: H03D1/00 ,  H04L7/00 ,  H04L27/06 ,  H04N5/455

    Abstract: PROBLEM TO BE SOLVED: To restore the frequency and phase of a carrier by generating a first carrier which is not correlated to an input signal, to be modulated, to multiply the first carrier by the input signal, which should be modulated, and removing radiation of undesirable spectrum by plural filters arranged at the up/down stream of a multiplier. SOLUTION: A signal reaching from a tuner 11 is sampled by an analog/ digital converter 12 and supplied to a block 10, next. The block 10 includes an input filter 1, a low-pass filter 2 and a multiplier 3 for removing radiation of undesirable spectrum. In the block 10, the multiplier 3 multiplies a signal outputted from the filter 1 by a carrier given by a carrier generator 13. A digital demodulator includes a means for detecting phase shift between the frequency of an input signal (x), which is given from the converter 12 and supplied to the filter 1, and a local carrier in addition.

    PRESSURE SENSOR HAVING A HIGH FULL-SCALE VALUE WITH PACKAGE THEREOF
    2.
    发明申请
    PRESSURE SENSOR HAVING A HIGH FULL-SCALE VALUE WITH PACKAGE THEREOF 审中-公开
    压力传感器具有包含其中的高全尺寸值

    公开(公告)号：WO2007032032A8

    公开(公告)日：2007-10-04

    申请号：PCT/IT2005000529

    申请日：2005-09-16

    Applicant: ST MICROELECTRONICS SRL ,  MURARI BRUNO ,  RICOTTI GIULIO ,  DELLA TORRE LUIGI ,  VITALI ANDREA LORENZO

    Inventor： MURARI BRUNO ,  RICOTTI GIULIO ,  DELLA TORRE LUIGI ,  VITALI ANDREA LORENZO

    IPC: G01L1/02 ,  G01L9/00

    CPC classification number: G01L9/0054 ,  G01L1/02 ,  G01L5/225 ,  G01L9/0045 ,  G01L9/0089 ,  G01L19/0645 ,  G01L19/146

    Abstract: In a pressure sensor (35), a pressure-sensor element (10) has a monolithic body (12) of semiconductor material, and a first main face (12a) and a second main face (12b) acting on which is a stress resulting from a pressure (P) the value of which is to be determined; and a package (36) encloses the pressure-sensor element (10). The package (36) has an inner chamber (37) containing liquid material (38), and the pressure-sensor element (10) is arranged within the inner chamber (37) in such a manner that the first and second main faces (12a, 12b) are both in contact with the liquid material (38). In particular, the liquid material is a silicone gel.

    Abstract translation: 在压力传感器（35）中，压力传感器元件（10）具有半导体材料的整体（12），并且作用于其上的应力产生的第一主面（12a）和第二主面（12b） 从压力（P）来确定其值; 并且包装（36）包围压力传感器元件（10）。 包装（36）具有容纳液体材料（38）的内室（37），并且压力传感器元件（10）以这样的方式设置在内室（37）内，使得第一和第二主面 ，12b）均与液体材料（38）接触。 特别地，液体材料是硅胶。

    3.
    发明专利
    未知

    公开(公告)号：DE602004008214D1

    公开(公告)日：2007-09-27

    申请号：DE602004008214

    申请日：2004-03-18

    Applicant: ST MICROELECTRONICS SRL

    Inventor： VITALI ANDREA LORENZO ,  ROVATI FABRIZIO SIMONE ,  DELLA TORRE LUIGI

    IPC: H04N7/26 ,  G10L19/02 ,  G10L19/24 ,  H04N7/12 ,  H04N7/46

    Abstract: A method for encoding and decoding media signals, includes the operations of generating at a transmitting side multiple descriptions associated to data of the media signals through a downsampling operation (DS) performed on the data, and decoding at a receiving side the multiple descriptions for reconstructing the data by merging (US) the multiple descriptions. The operation of generating multiple descriptions further includes the operations of obtaining a spectral representation (S) of the data, comprising bands (LS, MS HS) associated to different ranges ((LR, MR HR), the bands (LS, MS HS) being obtained by a suitable quantization operation and comprising at least one highly quantized band (HS), that is subjected to a higher degree of quantization. A scrambling operation (SC, SC') is performed on the spectral representation (S) by moving the at least one highly quantized band (HR) to a different range (LR, MR), the scrambling operation being performed prior the downsampling operation (DS). In decoding, a descrambling operation (DS, DS') is performed before the merging (US) operation on the multiple descriptions. Preferred application is in coding of video signals by using polyphase downsampling (PDMD).

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