Koninklijke Philips Corporation N.V.

Christoph Hermann

Josef Wasel

Oliver Muelhens

An imaging system () includes a radiation source () that emits radiation that traverses an examination region and a detector array () with a plurality of photon counting detector pixels () that detect radiation traversing the examination region and respectfully generate a signal indicative of the detected radiation. The photon counting detector pixel includes a direct conversion layer () having a first radiation receiving side () and second opposing side (), a cathode () affixed to and covering all of or a substantial portion of the first side, an anode () affixed to a centrally located region () of the second side, wherein the anode includes at least two sub-anodes (N), and a metallization () affixed to the second side, surrounding the anode and the anode region, with a gap between the anode and the metallization. The system further includes a reconstructor () that reconstructs the signal to generate volumetric image data indicative of the examination region.

Photon counting detector pixel having an anode including two or more alternatively selectable and separate sub-anodes

The invention relates to a wireless network comprising a radio network controller and a plurality of assigned terminals which are provided for coding certain data to be transmitted over traffic and control channels and which are provided for changing the respective key necessary for the coding at certain instants. The radio network controller sends a message about a change of the key coded with an old cipher key to a terminal. The terminal responds with a message coded with a new cipher key as an acknowledgement for the new cipher key.

Wireless network with a cipher key change procedure

A wireless network employing a radio network controller and a plurality of assigned terminals which are provided for coding certain data to be transmitted over traffic and control channels and which are provided for changing the respective key necessary for the coding at certain instants. The radio network controller sends a message about a change of the key coded with an old cipher key to a terminal The terminal responds with a message coded with a new cipher key as an acknowledgement for the new cipher key.

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Aachen, Germany

Christoph Hermann