Technologies

In this section it is possible to view, also through targeted research, the technologies inserted in the PROMO-TT Database. For further information on the technologies and to contact the CNR Research Teams who developed them, it is necessary to contact the Project Manager (see the references at the bottom of each record card).

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Quasi-Periodic Locked Loop (Q-PLL)

# Record card
38
Description

The Q-PLL is a nonlinear circuit which can maintain a locked state when forced by two incommensurate frequencies.

The locked state is a third frequency parametrically selected among those prescribed by the theory of three-frequency resonances in dynamical systems.

In particular, the locked frequency forms a three-frequency resonance with the frequencies of the quasi- periodic input and is closely related to the pitch perception of complex sound in humans.

Thematic areas
Materials / Properties of materials, corrosion, degradation
ICT & Electronics / Sensor/multi-sensor technology, instrumentation
ICT & Electronics / Optics & Acoustic
ICT & Electronics / Robotics and control systems
Health & Biotech / Medical Device
Health & Biotech / Micro and nanotechnology related to biological sciences
Health & Biotech / Bio-medicals
ICT & Electronics / Electronics and microelectronics
ICT & Electronics / Information processing, information system, workflow management
ICT & Electronics / IT and Telematics applications
ICT & Electronics / Multimedia
ICT & Electronics / Telecommunications