An endoscope system includes a first capsule endoscope device and a second capsule endoscope device. The first capsule endoscope device is introduced into a living body before the second capsule endoscope device is introduced. The first capsule endoscope device includes a first image sensor and a first processor that controls an imaging operation by the first image sensor. The second capsule endoscope device includes a second image sensor and a second processor that performs a change process for control on an imaging operation by the second image sensor based on first information on the first capsule endoscope device.

The present invention relates to a wireless capsule endoscope and a power supply control method thereof. The method includes controlling the power supply of the capsule endoscope wirelessly and automatically adjusting power consumption of the power supply in the capsule endoscope. The wireless capsule endoscope includes a capsule casing, a light generator arranged at outside of the capsule casing, an opto-electronic switching starter arranged in the capsule casing, a power supply, a control module, a posture sensor, an illumination unit, an image processing device and a radio frequency transmission unit. The power supply being driven by the light generator in the present invention can effectively solve the incompatible problem between a traditional magnetic switch and a magnetic control device. Meanwhile, the control module and the posture detector enable the power supply to be in different working status under different states, which can prolong the service life of the power supply of the capsule endoscope.

A system and method for wirelessly transmitting a video image signal from an endoscopic camera to a receiver or control unit for storage and/or display on a video monitor. Use of a frame-specific, variable compression algorithm capable of progressively encoding a data stream provides for a better performing and higher quality wireless endoscopic camera system capable of generating images at varying resolutions. Use of a short-range, high-performance wireless technology, such as Ultrawideband (UWB), improves the performance capabilities of the system, while minimizing power consumption and extending battery life. Implementations of error correcting codes, as well as the use of multiple transmitting and receiving antennas, further improve the fidelity of the wireless communication.

The present invention relates to a wireless capsule endoscope and a power supply control method thereof. The method includes controlling the power supply of the capsule endoscope wirelessly and automatically adjusting power consumption of the power supply in the capsule endoscope. The wireless capsule endoscope includes a capsule casing, a light generator arranged at outside of the capsule casing, an opto-electronic switching starter arranged in the capsule casing, a power supply, a control module, a posture sensor, an illumination unit, an image processing device and a radio frequency transmission unit. The power supply being driven by the light generator in the present invention can effectively solve the incompatible problem between a traditional magnetic switch and a magnetic control device. Meanwhile, the control module and the posture detector enable the power supply to be in different working status under different states, which can prolong the service life of the power supply of the capsule endoscope.

A light source illumination unit has operation modes including at least a normal electric power mode to operate with first electric power consumption, and a low electric power mode to operate with second electric power consumption lower than the first electric power consumption. A controller selects at least one of the operation modes in accordance with the current usage, and controls the light source illumination unit in accordance with the selected operation mode.

An endoscopic system comprises an image capturing device. The image capturing device captures an image of an examinee and generates a captured image signal with respect to the examinee. A control device is connected to the endoscope. A first controller is disposed in the endoscope and having a first sender/receiver communicating with the control device during a predetermined period when the endoscope is connected to the control device so as to send a plurality of parameters for driving the image capturing device to the control device. A second controller is disposed in the control device and having a second sender/receiver receiving the parameters sent from the first controller during the predetermined period when the endoscope is connected to the control device. An output value controller is disposed in the control device and setting predetermined output values relative to the control device required to drive the image capturing device.

An endoscope includes an insertion portion having a light source portion configured to emit illuminating light therefrom when inserted into a body cavity. An imaging portion is configured to capture an image in the body cavity. A transmission portion configured to transmit the image captured by the imaging portion. A battery is configured to supply electric power needed for endoscopic observation. A power control portion is configured to selectively control a supply of electric power to all of the light source portion, the imaging portion, and the transmission portion in a standby mode in which power consumption is reduced compared with a normal operation mode in which a supply of electric power is performed from the battery to all of the light source portion, the imaging portion, and the transmission portion.

An endoscope apparatus includes a processor comprising hardware, a processor performs a focus control that controls a position of a focus lens to an in-focus position based on an in-focus evaluation value, the focus lens being included in an optical system that forms an image of a captured image that is acquired by an imaging section, and the in-focus evaluation value being calculated from a first area within the captured image, and a change-in-scene detection process that detects whether or not a change in scene has occurred from a second area that includes an area that differs from the first area, wherein the processor is set to a standby state when the position of the focus lens has been controlled to the in-focus position, and resumes the focus control process when a change in scene has been detected when the focus control section is set to the standby state.

The endoscope apparatus includes an endoscope and a video processor. The endoscope apparatus has a voice coil motor provided in a distal end portion of an insertion portion of the endoscope and having a coil with a resistance component, and a signal wire inserted into the insertion portion and connected to both ends of the coil, detects at least one value of a current supplied to the signal wire and a voltage applied to the signal wire, calculates power consumption of the coil from the at least one value detected and resistance value information of the resistance component, and executes a predetermined process based on the calculated power consumption of the coil and power consumption threshold information.

An intraoral scanner includes an image sensor, a projection module, a motion sensor, a memory unit and a processor. The motion sensor senses three motion variations corresponding to three axes according to a motion state of the intraoral scanner. The memory unit stores three first variation thresholds corresponding to the three axes. The processor determines whether the three motion variations are smaller than or equal to the three first variation thresholds, respectively. When the processor determines that at least one of the three motion variations is smaller than or equal to the three first variation thresholds, the processor enables the image sensor and the projection module. When the processor determines that all of the three motion variations are larger than the three first variation thresholds, the processor disables at least one of the image sensor and the projection module.