Patent ID: 11864866
Assignee: CORTIRIO LIMITED
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. A method according to claim 11, wherein the second measurement mode is implemented by:
applying a first bias voltage to the anode of first photodiode of each pair;
applying the first bias voltage to the cathode of the first diode of each pair and the anode of the second photodiode of each pair, thereby holding the first photodiode of each pair in an unbiased, non-conducting state,
wherein the first bias voltage sequentially increases along the photodiode array for each photodiode pair thereby holding the second photodiode of each pair in a reverse bias state, and
measuring an output of the second photodiode of each photodiode pair from the current output measured at the cathode of the first photodiode connected to the anode of the second photodiode,
and, before or subsequently
applying the first bias voltage to the cathode of the second photodiode of each pair;
applying the same bias voltage to the cathode of the first diode of each pair and the anode of the second photodiode of each pair, thereby holding the second photodiode of each pair in an unbiased, non-conducting state,
wherein the second bias voltage sequentially increases along the photodiode array for each photodiode pair thereby holding the first photodiode of each pair in a reverse bias state, and
measuring an output of the first photodiode of each photodiode pair from the current output measured at the cathode of the first photodiode connected to the anode of the second photodiode.