Imaging system and endoscope
AssigneeOlympus Corporation
InventorYasunari Harada
Life of this patent
Estimating the term…
Abstract
In an imaging system, a video output circuit is configured to convert an analog video signal into digital data and output serial data including the digital data to a signal line on the basis of a serial clock having a higher frequency than a frequency of the camera clock. A camera-clock generation circuit is configured to generate the camera clock synchronized with the system clock output to the signal line. A serial-clock generation circuit is configured to generate the serial clock synchronized with the system clock output to the signal line. A system-clock output circuit is configured to output the system clock to the signal line in a blanking period.
Claims10
An imaging system, comprising:
- a camera unit;
- and
- a control unit that is configured to operate on the basis of a system clock and is connected to the camera unit by a signal line that transmits serial data and the system clock,
- wherein the camera unit comprises:
- an imager configured to generate an analog video signal on the basis of a camera clock;
- a video output circuit configured to convert the analog video signal into digital data and output the serial data including the digital data to the signal line on the basis of a serial clock having a higher frequency than a frequency of the camera clock;
- a camera-clock generation circuit configured to generate the camera clock synchronized with the system clock output to the signal line;
- and
- a serial-clock generation circuit configured to generate the serial clock synchronized with the system clock output to the signal line, and
- the control unit comprises:
- a video reception circuit that is electrically connected to the signal line and is configured to receive the serial data;
- and
- a system-clock output circuit configured to output the system clock to the signal line in a blanking period during which output of the serial data to the signal line is stopped.
An endoscope connected to a control unit by a signal line that transmits serial data and a system clock, the endoscope comprising:
- an imager configured to generate an analog video signal on the basis of a camera clock;
- a video output circuit configured to convert the analog video signal into digital data and output the serial data including the digital data to the signal line on the basis of a serial clock having a higher frequency than a frequency of the camera clock;
- a camera-clock generation circuit configured to generate the camera clock synchronized with the system clock output to the signal line in a blanking period during which output of the serial data to the signal line is stopped;
- and
- a serial-clock generation circuit configured to generate the serial clock synchronized with the system clock output to the signal line.
Dependencies are inferred from the claim text.