Nokia Corporation

Nokia Technologies Oy

Emberion Oy

Juha Rakkola

Martti Voutilainen

Sami Kallioinen

Kimmo Koli

Pekka Korpinen

Teemu Salo

Jukka Salminen

Michel Rene Gustave Gillet

A photosensitive field-effect transistor which can be configured to provide an electrical response when illuminated by electromagnetic radiation incident on the transistor. The field-effect transistor has a channel () made from a two-dimensional material and comprises a photoactive layer () which can be configured to donate charge carriers to the transistor channel () when electromagnetic radiation is absorbed in the photoactive layer (). The photosensitive field-effect transistor comprises a top electrode () which is in contact with the photoactive layer on one or more contact areas which together form a contact pattern. With a suitably patterned top electrode (), a voltage applied to the electrode can function as an electrical shutter which can switch the photosensitive field-effect transistor between a light-sensitive state and a light-immune state.

Photosensitive field-effect transistor

An apparatus comprises at least one processor and at least one memory including computer code. The at least one memory and the computer code are configured to with the at least one processor cause the apparatus to at least perform receiving a first message from a first port, the first message for transmission in a communications network. The first message comprises at least one destination address. The apparatus is also configured to perform determining whether the first message is deliverable and generating a second message comprising the at least one destination address for each undeliverable address; and transmitting the second message.

Method and an apparatus for a gateway

An energy-efficient acceleration measurement system is presented. The system includes an accelerometer, responsive to acceleration of the system, for providing an accelerometer output signal having a magnitude indicative of at least one component of the acceleration. A motion detector is responsive to the accelerometer output signal, and provides a processor interrupt signal, but only if the magnitude of acceleration reaches a threshold. The processor, responsive to the processor interrupt signal, measures the acceleration with higher accuracy than the motion detector is capable of, but in a way that consumes more power than was needed by the motion detector.

Low power motion detector

Growing community of inventors

Espoo, Finland

Juha Rakkola