Camera head separated type camera device

A camera head separated type camera device, in which a camera head and a camera control unit are connected by a cable,

• wherein the camera head or the camera control unit includes:
• a switch configured to change an amplitude correction value and a rising correction value,
• wherein the camera head includes:
• a Low Voltage Differential Signaling (LVDS) conversion driver module configured to transmit a LVDS signal to a correction control module of the camera control unit;
• a correction control module configured to output the amplitude correction value and the rising correction by changing them through a selection of the switch;
• and
• a LVDS control module configured to control the LVDS conversion driver module based on the amplitude correction value and the rising correction value changed by the correction control module.

A control method for a camera head separated type camera device, in which a camera head and a camera control unit are connected by a cable, the method comprising:

• transferring, with the camera control unit, a predetermined Direct Current (DC) voltage to a correction control module of the camera head;
• transmitting, with a Low Voltage Differential Signaling (LVDS) conversion driver module of the camera head, a LVDS signal to the camera control unit;
• generating, with the correction control module, an amplitude correction value and a rising correction value based on a voltage drop in the DC voltage which has been transferred from the correction control module without any processing, the voltage drop having been measured with a voltage measurement module;
• and
• controlling, with a LVDS control module, the LVDS conversion driver module.

A camera head separated type camera device, in which a camera head and a camera control unit are connected by a cable,

• wherein the camera control unit includes:
• a control module configured to transfer a predetermined Direct Current (DC) voltage to a correction control module of the camera head, and
• wherein the camera head includes:
• a Low Voltage Differential Signaling (LVDS) conversion driver module configured to transmit a LVDS signal to the camera control unit;
• a voltage measurement module included in the correction control module and configured to measure a voltage drop in the DC voltage transferred to the correction control module;
• the correction control module configured to generate an amplitude correction value and a rising correction value based on the voltage drop in the DC voltage measured by the voltage measurement module;
• and
• a LVDS control module configured to control the LVDS conversion driver module based on the amplitude correction value and the rising correction value generated by the correction control module.