@chapman89,
I don't have any direct link to oculi, but I have a vague recollection of someone joining a dot, possibly from a like by RT or another BrainChip notable.
This patent application was filed in the name of Fris Inc, but was invented by Charbel Rizk (CEO/CTO of Oculi) et al.
US2022272285A1 SENSING AND PROCESSING UNIT GENERATING A TRIGGER SIGNAL UPON OCCURRENCE OF SPECIFIED CONDITIONS
Priorities
US202163152776P·2021-02-23; US202217678881A·2022-02-23
View attachment 29723
A sensing and processing electronic circuit includes a sensing array having a plurality of sensing elements each having a sensor configured to produce an output signal in response to detection of an environmental parameter. The circuit includes a triggering unit configured to generate a trigger signal that causes an action to occur. The trigger signal is generated based on selected activated sensing elements satisfying one or more specifiable conditions. A sensing element is activated when a characteristic value based on the output value of the sensing element crosses one or more thresholds so that the characteristic value is above, below, within or outside of a specified range of values or when a difference value between the characteristic value and a previous or template value of the sensing element crosses one or more thresholds so that the difference value is above, below, within or outside of a specified range of values.
Item 350 shows the processing circuit for each individual pixel to detect the events from the analog photodetector/photodiode (pixel) signal.
Interestingly, oculi apply correction for analog variability to the individual pixels, a similar problem to ReRAM:
, the gain value (gain register 352) represents the slope of the sensor response to light incident on the sensor. As each sensing element or pixel has a respective gain register 352 and a respective offset register 356 , the sensors can be calibrated and individual differences accounted for across the array, with the sensing elements or pixels having individual adjustment to the sensed values accordingly.
The detection threshold of each pixel evaluation circuit is adjustable. This feature may be used to remove events caused by camera movement.
Afternoon Diogenese,@chapman89,
I don't have any direct link to oculi, but I have a vague recollection of someone joining a dot, possibly from a like by RT or another BrainChip notable.
This patent application was filed in the name of Fris Inc, but was invented by Charbel Rizk (CEO/CTO of Oculi) et al.
US2022272285A1 SENSING AND PROCESSING UNIT GENERATING A TRIGGER SIGNAL UPON OCCURRENCE OF SPECIFIED CONDITIONS
Priorities
US202163152776P·2021-02-23; US202217678881A·2022-02-23
View attachment 29723
A sensing and processing electronic circuit includes a sensing array having a plurality of sensing elements each having a sensor configured to produce an output signal in response to detection of an environmental parameter. The circuit includes a triggering unit configured to generate a trigger signal that causes an action to occur. The trigger signal is generated based on selected activated sensing elements satisfying one or more specifiable conditions. A sensing element is activated when a characteristic value based on the output value of the sensing element crosses one or more thresholds so that the characteristic value is above, below, within or outside of a specified range of values or when a difference value between the characteristic value and a previous or template value of the sensing element crosses one or more thresholds so that the difference value is above, below, within or outside of a specified range of values.
Item 350 shows the processing circuit for each individual pixel to detect the events from the analog photodetector/photodiode (pixel) signal.
Interestingly, oculi apply correction for analog variability to the individual pixels, a similar problem to ReRAM:
, the gain value (gain register 352) represents the slope of the sensor response to light incident on the sensor. As each sensing element or pixel has a respective gain register 352 and a respective offset register 356 , the sensors can be calibrated and individual differences accounted for across the array, with the sensing elements or pixels having individual adjustment to the sensed values accordingly.
The detection threshold of each pixel evaluation circuit is adjustable. This feature may be used to remove events caused by camera movement.
Thankyou as per usual.
Humour....
SENSING AND PROCESSING UNIT GENERATING A TRIGGER SIGNAL UPON OCCURRENCE OF SPECIFIED CONDITIONS.
This about sums up myself as a BRN holder pressently.
.
Regards,
Esq