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Unibrain Fire-i 501/511/601/701/702/810 Operation Manual Page 27
3. Basic Operation and Features
The Unibrain cameras employ progressive scan CCD sensor which provides features according to each model. Basic
functions and features are similar while each camera of its range would have their specific function support. The
cameras- fully support the IIDC V1.31 specification such as registers, video format, mode of operation and control.
3.1. Brightness
Brightness of the camera can be controlled by changing the black level in the camera. The user can inquire the settings
of the camera and control using the status control register. Adjust the brightness if the appropriate gradation cannot be
obtained due to blurring of black portion of the image. The parameters of Brightness are changed inside the camera. For
brightness, its parameters are shifted by the black level.
4095
0 4095
Inquiry Register
Address Name Field Bit Description
500h BRIGHTN
ESS_INQ
Presence_Inq [0] Presence of this feature
Abs_Control_Inq [1] Capability of control with absolute value
- [2] Reserved
One_Push_Inq [3] One push auto mode (Controlled automatically by
camera only once)
ReadOut_Inq [4] Capability of reading the value of this feature
On/OFF_Inq [5] Capability of switching this feature ON and OFF
Auto_Inq [6] Auto Mode (Controlled automatically by camera)
Manual_Inq [7] Manual Mode (Controlled by user)
Min_Value [8..19] Minimum value for this feature control
Max_Value [20..31] Maximum value for this feature control