Integrated realization of sensing and processing
View Patent ↗An integrated sensing device comprising an array of sensor processor cells capable of being arranged into a detection array: Each sensor processor cell comprises a sensing medium; at least one transconductance amplifier configured for feedforward template multiplication; at least one transconductance amplifier configured for feedback template weights; a plurality of local dynamic memory cells; a data bus for data transfer; and a local logic unit. The array of sensor processor cells, by responding to data control signals, is capable of transforming, reshaping, and modulating the original sensed image into varied represenations which include (and extend) traditional spatial and temporal processing transformations.
1. A system comprising:
a programmable sensing array having a plurality of cells, each programmable sensing array cell including:
a sensor,
memory holding a sensing weight factor, and
a variable gain transconductance amplifier with an input connected to the sensor, the amplifier variable gain based on the sensing weight factor;
a programmable cellular logic array having a plurality of cells, each programmable cellular logic array cell including:
memory holding an output weight factor, and
logic generating an output signal based on a received signal and on the output weight factor; and
a bus interconnecting the programmable sensing array and the programmable cellular array, the bus delivering output from at least one transconductance amplifier in the programmable sensing array as the received signal for logic in at least one cell of the programmable cellular logic array.
2. The system of claim 1 wherein at least one sensor in the programmable sensing array is a photosensor.
3. The system of claim 1 further comprising control logic in communication with the programmable cellular logic array, the control logic operative to command at least a subset of the programmable cellular logic array cells to perform a sequence of operations on transconductance amplifier output received over the bus.
4. The system of claim 1 wherein the size of the array of cells in the programmable sensing array equals the size of the array of cells in the programmable cellular logic array.