公开(公告)号：DE60220572D1

公开(公告)日：2007-07-26

申请号：DE60220572

申请日：2002-03-20

Applicant: ST MICROELECTRONICS SA

Inventor： JOISSON MARC ,  GARCIA LUC ,  GENS MARC

IPC: H04L27/14 ,  H04L27/152 ,  H04L27/156

Abstract: A receiver of a frequency-modulated signal is provided. The receiver includes a frequency-transposition unit for lowering the frequency of the frequency-modulated signal, and a digital demodulator for regenerating a digital signal from the frequency-transposed signal. The frequency-transposition unit includes a local oscillator for generating a local oscillator signal used in lowering the frequency of the frequency-modulated signal. The frequency-transposed signal is sampled in the digital demodulator at the rate of a sampling signal, and the sampling signal is generated by the local oscillator of the frequency-transposition unit. In a preferred embodiment, the local oscillator includes at least one frequency-divider circuit that delivers the sampling signal. Also provided is a method for regenerating a digital signal from a frequency-modulated signal.

公开(公告)号：DE69709029D1

公开(公告)日：2002-01-24

申请号：DE69709029

申请日：1997-10-24

Applicant: ST MICROELECTRONICS SA

Inventor： GENS MARC ,  VAN ZANTEN FRANCOIS

IPC: G05F1/59

Abstract: The voltage regulator delivers a controlled output voltage via MOSFET power transistors (M10M, M10L), with the output voltage set relative to a reference potential (VBG). The regulator has two input terminals (EM, EL), each connected to an independent supply source (VM, VL). An automatic selection circuit (11) connects the higher of the input voltages to the regulator input. The terminal connected to the lower supply voltage is automatically isolated from the remainder of the circuit. The selector (11) introduces a small voltage drop, equal to the voltage drop over a single power transistor, between the input and the output of the regulator.

公开(公告)号：DE69421134T2

公开(公告)日：2000-02-03

申请号：DE69421134

申请日：1994-08-03

Applicant: ST MICROELECTRONICS SA

Inventor： GENS MARC ,  JIMENEZ JEAN

IPC: H01L27/04 ,  H01L21/822 ,  H01L27/02 ,  H02H7/20 ,  H02H9/04

Abstract: The present invention relates to a structure for protection against electrostatic overvoltages for the terminals of an integrated circuit of multiple supplies, each supply being connected between a high-potential terminal and a low-potential terminal. Each terminal (P1, P2, etc.) of the circuit, including supply terminals (VDD1, VDD2..., VSS1, VSS2...), is connected to the anode of a first diode (D1), the cathode of which is linked to a first conducting rail (R1) and to the cathode of a second diode (D2) the anode of which is linked to a second conducting rail (R2). A unidirectional clipper component (Z) is linked by its cathode to the first rail and by its anode to the second rail.

公开(公告)号：FR2822616B1

公开(公告)日：2003-08-01

申请号：FR0103788

申请日：2001-03-21

Applicant: ST MICROELECTRONICS SA

Inventor： JOISSON MARC ,  GARCIA LUC ,  GENS MARC

IPC: H04L27/156 ,  H04L27/14

Abstract: A receiver of a frequency-modulated signal is provided. The receiver includes a frequency-transposition unit for lowering the frequency of the frequency-modulated signal, and a digital demodulator for regenerating a digital signal from the frequency-transposed signal. The frequency-transposition unit includes a local oscillator for generating a local oscillator signal used in lowering the frequency of the frequency-modulated signal. The frequency-transposed signal is sampled in the digital demodulator at the rate of a sampling signal, and the sampling signal is generated by the local oscillator of the frequency-transposition unit. In a preferred embodiment, the local oscillator includes at least one frequency-divider circuit that delivers the sampling signal. Also provided is a method for regenerating a digital signal from a frequency-modulated signal.

公开(公告)号：FR2822616A1

公开(公告)日：2002-09-27

申请号：FR0103788

申请日：2001-03-21

Applicant: ST MICROELECTRONICS SA

Inventor： JOISSON MARC ,  GARCIA LUC ,  GENS MARC

IPC: H04L27/156 ,  H04L27/14

Abstract: An integrated circuit FSK receiver digitally demodulates the intermediate frequency with a sampling signal (ECH) from the frequency conversion module (12) local oscillator (14) phase locked loop first division circuit (20)

公开(公告)号：DE69709030D1

公开(公告)日：2002-01-24

申请号：DE69709030

申请日：1997-10-24

Applicant: ST MICROELECTRONICS SA

Inventor： GENS MARC ,  VAN ZANTEN FRANCOIS

IPC: G05F1/59 ,  G05F1/575

Abstract: The voltage regulator has an input terminal (EL) which is connected to a supply voltage (VL). A reference generator circuit (1') delivers a reference voltage (VBG) which is proportional to the required regulated output voltage (VR). An amplifier circuit (2') amplifies the error signal between the reference voltage and the actual output voltage to produce a constant of proportionality. A capacitor (C) is connected across the output of the regulator to sustain the output voltage temporarily and the energy stored in the capacitor is used to temporarily supply the regulator circuit if the supply voltage falls. A comparator (12) delivers an external logic signal if the supply voltage falls.

公开(公告)号：DE69421134D1

公开(公告)日：1999-11-18

申请号：DE69421134

申请日：1994-08-03

Applicant: ST MICROELECTRONICS SA

Inventor： GENS MARC ,  JIMENEZ JEAN

IPC: H01L27/04 ,  H01L21/822 ,  H01L27/02 ,  H02H7/20 ,  H02H9/04

Abstract: The present invention relates to a structure for protection against electrostatic overvoltages for the terminals of an integrated circuit of multiple supplies, each supply being connected between a high-potential terminal and a low-potential terminal. Each terminal (P1, P2, etc.) of the circuit, including supply terminals (VDD1, VDD2..., VSS1, VSS2...), is connected to the anode of a first diode (D1), the cathode of which is linked to a first conducting rail (R1) and to the cathode of a second diode (D2) the anode of which is linked to a second conducting rail (R2). A unidirectional clipper component (Z) is linked by its cathode to the first rail and by its anode to the second rail.