Stmicroelectronics N.v.

Stmicroelectronics S.a.

Thierry Arnaud

Friedbert Berens

Fritz Lebowsky

Didier Helal

Chiara Cattaneo

Régis Cattenoz

Philippe Gouessant

A detection device includes an antenna for receiving an incident signal, and for delivering a base signal. A comparator receives the base signal and provides an intermediate signal representative of the sign of the base signal relative to a reference signal. A sampling circuit samples the intermediate signal for providing a digital signal. A digital processing circuit correlates the digital signal with a predetermined correlation signal.

Method and device for detecting pulses of an incident pulse signal of the ultra wideband type

The transmission power of a cellular mobile telephone is adjusted as a function of received power information. The celluar mobile telephone is equipped with a variable-gain amplifier that covers the transmission power range, and the gain and supply voltage of the amplifier are tuned as a function of the received power information.

Process and device for monitoring the transmission power of a mobile terminal, for example a cellular mobile telephone, in particular capable of operating according to the UMTS standard

An incident pulse signal of the ultra wideband type conveys digital information that is coded using pulses having a known theoretical shape. A decoding device includes an input for receiving the incident signal, and for delivering a base signal. A comparator receives the base signal and delivers an intermediate signal representative of the sign of the base signal with respect to a reference. A sampling circuit samples the intermediate signal for delivering a digital signal. A digital processing circuit correlates the digital signal with a reference correlation signal corresponding to a theoretical base signal arising from the reception of a theoretical pulse having the known theoretical shape.

Method and device for decoding an incident pulse signal of the ultra wideband type, in particular for a wireless communication system

The electrical consumption of a cellular mobile telephone is reduced by using fractional-division phase-locked loops receiving a frequency reference from a fairly inaccurate quartz oscillator. Electrical consumption is also reduced by switching the output of the oscillator onto the input of the processing stage when the transmission/reception stage is inactive. The fractional-division phase-locked loops can then be deactivated.

Process for reducing the electrical consumption of a transmitter/receiver of digital information, in particular a cellular mobile telephone, and corresponding transmitter/receiver

A remote terminal includes a receiver stage for receiving a transmitted signal and for delivering an analog signal. The remote terminal further includes an analog/digital converter for converting the analog signal to a digital signal, and a processing stage for processing the digital signal. The analog/digital converter is a delta-sigma converter having adjustable parameters, and the processing stage includes a tuning circuit for adjusting these parameters on the fly as a function of the transmission standard, of the actual rate of transmission of the useful data, and of the actual conditions of reception.

Process for the analog/digital conversion of an analog signal within a terminal of a wireless communication system, for example a mobile telephone, and corresponding terminal

Growing community of inventors

Poisy, France

Thierry Arnaud