Freescale Semiconductor,inc.

Nxp Usa, Inc.

Motorola Corporation

Christophe Landez

Olivier Vincent Doare

Didier Salle

Hao Li

Gilles Montoriol

Hugues Beaulaton

Thierry Cassagnes

Michel Burri

Pierre Pascal Savary

Laurent Gauthier

Robert Gach

Akbar Ghazinour

Xavier Lhuillier

Stephane Colomines

Philippe Freitas

Valerie Escarpit

A circuitry for and a method of generating a frequency modulated radar transmitter signal are provided. The circuitry comprises a modulation signal generator for generating a modulation signal having a waveform describing a required frequency modulation of the frequency modulated radar transmitter signal and comprises a PLL circuitry for generating the frequency modulated radar transmitter signal in dependence of the modulation signal. In the PLL circuitry a controllable frequency divider controls the output frequency of the PLL circuitry in dependence of the modulation signal. The PLL circuitry further comprises a phase detector, a controllable oscillator and possibly a low pass filter. The PLL circuitry further comprises a calibration circuitry being configured to control a parameter of at least one of the phase detector and the controllable oscillator to maintain a loop gain of PLL circuitry.

Circuitry for and method of generating a frequency modulated radar transmitter signal, a radar transceiver circuit and a radar system

An integrated circuit comprises a frequency detector. The frequency detector comprises a timer state machine unit operably couplable to a timer and arranged to receive an incoming carrier signal; determine whether the incoming carrier signal comprises a valid frequency; generate a valid carrier indication when the incoming carrier signal is determined as having a valid frequency; and adjust the timer between at least a first timing mode of operation and a second timing mode of operation of the frequency detector in response to the determination.

Integrated circuit device, electronic device and method for frequency detection

Versatility and flexibility of integrated circuits can be accomplished by remote control via a serial interface, such as SPI. Read/write accesses to the SPI slave node can be achieved according to SPI protocol by the master node. Additionally, a state machine associated to the slave node SPI needs a local clock to exercise the control of the analog functions following a write access. The serial protocol defines a serial data word transfer to comprise a number of reserved clock cycles that are not assigned for communicating a data bit value of the data word. The slave device comprises a clock unit coupled to the serial clock line for providing a derived clock based on reserved clock cycles. The derived clock is used internally in the slave device to perform internal synchronous operations.

Clock for serial communication device

An integrated circuit comprises frequency generation circuitry for controlling a frequency source for an automotive radar system. The frequency generation circuitry comprises a Phase Locked Loop (PLL) arranged to generate a control signal for controlling the frequency source, a fractional-N divider located within a feedback loop of the PLL, and frequency pattern control logic operably coupled to the fractional-N divider and arranged to control the fractional-N divider, by way of a frequency control signal, such that the PLL generates a Frequency Modulated Continuous Wave (FMCW) control signal.

Integrated circuit comprising frequency generation circuitry for controlling a frequency source

A wake-up control system comprises a plurality of different signal analyzer units. The plurality of different signal analyzer units may process a value of a different parameter of an incoming signal received at an input of a receiver and provide a false wake-up indication for the parameter when the value of the parameter is outside an acceptance range for the value. The system further comprises an evaluation unit connected to the plurality of different signal analyzer units for receiving the false wake-up indications. The evaluation unit may provide a false wake-up parameter information identifying an identified parameter of the different parameters when a sum of the false wake-up indications is outside an occurrence range for the false wake-up indications for the identified parameter.

Wake-up control system and method for controlling receiver wake-up

In accordance with an embodiment of the invention there is provided a sample and hold demodulator circuit ( ) for use in an automotive immobilizer to recover modulation information from a received modulated carrier signal (V ). Sample and hold circuitry samples signals to recover the modulation information therein, and control circuitry ( ) is coupled to the sample and hold circuitry for controlling operation thereof. The control circuitry includes shift register circuitry ( ) for receiving a second received signal having a same frequency as a carrier frequency of the received modulated carrier signal and for producing at its outputs signals (SAMPLE, SAMPLE , LATCH) for controlling operation of the sample and hold circuitry. The sample and hold demodulator circuit provides a single IC solution, allowing amplitude and phase demodulation to be performed with a single sample and hold circuit.

Sample and hold demodulator circuit

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Toulouse, France

Christophe Landez