Patent ID: 8598534

Claim:
A diagnostic imaging device comprising: a signal processing circuit which processes hit signals from a detector array which detects radiation from an imaging region, the hit signals being indicative of a corresponding detector being hit by a radiation photon, the signal processing circuit including: a plurality of input channels, each input channel receiving hit signals from a corresponding detector element such that each input channel corresponds to a location at which each hit signal is received; summers that each sum hit signals from a subset of the plurality of input channels; a plurality of integrators, each integrator integrating signals from the the summer of one of the subsets to determine an energy value associated with each radiation hit; a plurality of analog-to-digital converters (ADCs) for converting the integrated energy value into a digital energy value, there being one ADC for each subset of input channels; a plurality of time to digital converters (TDCs) that receive the hit signals and generate a digital time stamps, the ADCs and TDCs being in a 1:1 ratio; OR logic that relays signal hits from the subset of the plurality of input channels to the ADC and one of the time to digital converters, the subset including more than one input channel such that more than one input channel is connected with each ADC and/or each time-to-digital converter; a register and read out which reads out the locations, the digital energy values, and the digital time stamps for hit signals.