公开(公告)号：US20020003586A1

公开(公告)日：2002-01-10

申请号：US09827306

申请日：2001-04-05

Applicant: STMicroelectronics S.A.

Inventor： Pierre Busson ,  Pierre-Olivier Jouffre ,  Frederic Paillardet

IPC: H04N007/20 ,  H04N005/50

CPC classification number: H03G3/3068 ,  H03G3/3089

Abstract: A tuner includes an analog block, a digital block, and an analog/digital conversion stage connected therebetween. The analog block includes a first attenuator/controlled-gain amplifier stage connected upstream to a frequency transposition stage. The overall mean power of the entire signal received by the tuner is calculated during a phase of initialization. This overall calculated power is compared in the digital block with a first predetermined reference value corresponding to a maximum power desired at a predetermined location of the analog block. The gain of the first attenuator/amplifier stage is adjusted to minimize the deviation between the overall calculated power and the reference value. In a phase of normal operation, one of the channels of the signal received is selected, with the gain of the first attenuator/ amplifier stage being fixed.

Abstract translation: 调谐器包括模拟块，数字块和连接在它们之间的模拟/数字转换级。 模拟模块包括连接到频率转置级上游的第一衰减器/受控增益放大器级。 在初始化阶段计算由调谐器接收的整个信号的总平均功率。 该总计算功率在数字模块中与对应于模拟模块的预定位置所需的最大功率的第一预定参考值进行比较。 调整第一衰减器/放大器级的增益以最小化总计算功率与参考值之间的偏差。 在正常工作阶段，选择所接收信号的通道之一，第一衰减器/放大器级的增益是固定的。

公开(公告)号：US20040268396A1

公开(公告)日：2004-12-30

申请号：US10814818

申请日：2004-03-31

Applicant: STMicroelectronics S.A.

Inventor： Pierre Busson ,  Pierre-Oliver Jouffre ,  Bernard Louis-Gavet

IPC: H04N007/20

CPC classification number: H04N7/20 ,  H04L27/148

Abstract: An integrated circuit is embodied on a monolithic substrate and incorporates a tuning module of the direct sampling type that is able to receive satellite digital television analog signals composed of several channels, as well as several channel decoding digital modules connected at the output of the tuning module so as to deliver respectively simultaneously several streams of data packets corresponding to several different selected channels.

Abstract translation: 集成电路体现在单片基板上，并且包括能够接收由几个通道组成的卫星数字电视模拟信号的直接采样类型的调谐模块，以及连接在调谐模块的输出端的多个通道解码数字模块 以便分别同时传送与若干不同选择的信道相对应的若干数据分组流。

公开(公告)号：US20030053562A1

公开(公告)日：2003-03-20

申请号：US10150524

申请日：2002-05-17

Applicant: STMicroelectronics S.A.

Inventor： Pierre Busson ,  Bernard Louis-Gavet ,  Pierre-Olivier Jouffre

IPC: H03D003/00 ,  H03K009/06

CPC classification number: H04N21/6143 ,  H04L27/06 ,  H04N7/20

Abstract: The component, fully integrated onto a monolithic substrate, includes a tuner, a demodulator, and a channel decoder. The overall filtering is carried out in two parts, a baseband analog filtering and a digital Nyquist filtering removing the information of adjacent channels. It outputs a stream of MPEG data.

Abstract translation: 完全集成到单片基板上的部件包括调谐器，解调器和通道解码器。 整体滤波分为两部分：基带模拟滤波和数字奈奎斯特滤波，去除相邻信道的信息。 它输出一个MPEG数据流。

公开(公告)号：US20040259512A1

公开(公告)日：2004-12-23

申请号：US10819367

申请日：2004-04-06

Applicant: STMicroelectronics S.A.

Inventor： Pierre Busson ,  Pierre-Oliver Jouffre ,  Bruno Paille

IPC: H04B001/18 ,  H04B001/28

CPC classification number: H04N5/4446 ,  H03D7/165 ,  H04B1/28 ,  H04N5/4401 ,  H04N5/455 ,  H04N21/426 ,  H04N21/6112

Abstract: An integrated superheterodyne dual-conversion tuner upconverts a signal so as to place it outside a reception band, and then downconverts the signal with a non-zero intermediate frequency. A first filter of the bulk acoustic wave type is positioned between the up and down conversion and is calibrated in such a way as to accurately determine its central frequency. A second filter of a microelectromechanical type receives the downconverted signal and is calibrated in such a way as to accurately determine its central frequency.

Abstract translation: 集成的超外差双转换调谐器将信号上变频以将其置于接收频带外，然后以非零中频下变频信号。 体声波型的第一滤波器位于上下转换之间，并且以这样的方式进行校准，以便准确地确定其中心频率。 微机电类型的第二滤波器接收下变频信号，并且以这样一种精确地确定其中心频率的方式进行校准。

公开(公告)号：US20040257480A1

公开(公告)日：2004-12-23

申请号：US10814621

申请日：2004-03-31

Applicant: STMicroelectronics S.A.

Inventor： Pierre Busson ,  Daniel Saias ,  Frederic Paillardet ,  Franck Montaudon

IPC: H04N005/50

CPC classification number: H04N5/4446 ,  H03D3/007 ,  H03D7/161 ,  H04L2027/0016 ,  H04L2027/0024 ,  H04N5/4401 ,  H04N5/455 ,  H04N21/426 ,  H04N21/6112

Abstract: A dual-conversion tuner firstly upconverts so as to place itself outside the receive band and then downconverts with zero intermediate frequency. A filter of the surface acoustic wave type is disposed between the two frequency transposition stages of the tuner. After baseband filtering, the signals are digitized then processed in a digital block comprising a channel decoding module. With the exception of the surface acoustic wave filter, the components are entirely embodied in integrated fashion.

Abstract translation: 首先将双转换调谐器上变频，将其自身置于接收频带外，然后以零中频下变频。 表面声波型滤波器设置在调谐器的两个频率转置级之间。 在基带滤波之后，信号被数字化，然后在包括信道解码模块的数字块中进行处理。 除了表面声波滤波器之外，组件完全以整体方式体现。

公开(公告)号：US20040252245A1

公开(公告)日：2004-12-16

申请号：US10819086

申请日：2004-04-06

Applicant: STMicroelectronics S.A.

Inventor： Pierre Busson ,  Pierre-Oliver Jouffre ,  Bruno Paille

IPC: H04N005/455

CPC classification number: H03D7/161 ,  H04N5/4401 ,  H04N21/426 ,  H04N21/6112

Abstract: An integrated circuit includes a dual-conversion tuner, firstly upconverting so as to place a signal outside the reception band, then downconverting with zero intermediate frequency. A bulk acoustic wave type filter is calibrated in such a way as to accurately determine its central frequency. This filter is positioned between the two frequency transposition stages of the tuner. After baseband filtering, the signals are digitized then processed in a digital block BNM which includes a channel decoding module.

Abstract translation: 集成电路包括双转换调谐器，首先上变频以将信号放在接收频带外，然后以零中频下变频。 体积声波型滤波器被校准，以便准确地确定其中心频率。 该滤波器位于调谐器的两个频率转置级之间。 在基带滤波之后，信号被数字化，然后在包括信道解码模块的数字块BNM中进行处理。