摘要:
Embodiments of a method for controlling access to a shared communications medium by a plurality of nodes are disclosed. The method may comprise predicting, for each node of the plurality of nodes, whether an event will occur within a sensing field of that node at a future time and adapting a communications schedule of each node in response to the prediction regarding that node. Wireless sensor networks and computer readable media implementing embodiments of a method for controlling access to a shared communications medium by a plurality of nodes are also disclosed.
摘要:
In a cellular video telephone having a built-in battery, the remaining electric power of the battery is detected. The data communication speed and the display of image on a display are variably controlled based on the detected remaining battery power, that is, the communication speed is lowered and the display is turned off, as the remaining power decreases. Alternatively or in addition, the communication speed and the image display are controlled variably based on availability of external power source in the course of voice and image communication.
摘要:
A motion detection apparatus includes an inertia motion detection section which detects an inertia motion of an object to be measured by using at least one of an acceleration sensor or an angular velocity sensor. An image pickup section which picks up a peripheral image of the object to be measured. An image comparison section which compares images picked up at different points in time by the image pickup section. A camera position and posture acquiring section which detects a position and a posture of the object to be measured by using a result of comparing the images by the image comparison section. A spatial position and posture acquiring section which detects a position and a posture in space of the object to be measured on the basis of information obtained by the inertia motion detection section and the camera position and posture acquiring section.
摘要:
A navigation apparatus comprises a navigation-related information generating section and a display section. The navigation-related information generating section measures the position and orientation of an object and a target in a three-dimensional space and generate navigation-related information to be used for navigating the object toward the target. The display section displays the navigation-related information generated by the navigation-related information generating section in any of different modes depending on the relationship of the position and orientation of the object and that of the target. A surgical operation image acquisition/display apparatus comprises an observation section, an image display section and a specifying section. The observation section includes a plurality of observation sections whose position and orientation is modifiable. The image display section is adapted to alternatively display any of the images obtained by the observation sections or synthetically combine and display the combined images. The specifying section specifies the image to be displayed to the image display section according to the position and orientation of the observation section.
摘要:
A substrate cleaning apparatus is provided that includes a cleaning cup for receiving a to-be-cleaned substrate, a table in the cleaning cup, a first, second, and third nozzles, a pure water heating mechanism configured to supply hot pure water, a branch line, a control mechanism, and an open/close valve, provided between the branch line and the pipe, wherein the open/close valve is configured to interrupt emission of hot water from the third nozzle by opening the open/close valve to lower the pressure in the pipe.
摘要:
Communication speed of a radio communication device such as a portable telephone is controlled according to temperature of a transmitting amplifier to avoid overheating of the device. The transmitting amplifier temperature is detected by a temperature detector installed in the device. When the transmitting amplifier temperature is lower than a first temperature, the communication speed is set at a high level to transmit both voice and image data. When the transmitting amplifier temperature exceeds the first temperature, the communication speed is automatically switched to a low level to avoid overheating of the device. Under the low speed communication, only the voice data are transmitted. When the transmitting amplifier temperature becomes below a second temperature that is lower than the first temperature, the communication speed is switched back to the high level to resume transmission of both voice and image data. Thus, the communication device is protected from overheating without interrupting communication.
摘要:
This specification discloses an invention directed to an ultrasonic cleaning apparatus for cleaning a cleaning target. The ultrasonic cleaning apparatus includes a liquid discharge nozzle having a discharge port to discharge a liquid therethrough, an ultrasonic vibrator for applying ultrasonic vibrations to the liquid which is to be supplied to the nozzle, and a cleaning member which is mounted on the discharge port of the nozzle, vibrates while holding therein the liquid discharged through the discharge port, and comes into contact with the cleaning target with a predetermined area, thereby scrub-cleaning the surface of the cleaning target.
摘要:
A movement detection device includes a self-sustaining movement detection unit which is attached to an operator's body and detects a movement or a posture of an attached part of the operator's body. An image pickup section picks up a projected image from an optical system which simultaneously inputs a peripheral image. An image conversion section converts an all azimuth image picked up by the image pickup section into a cylindrical panorama image. An image recognition section includes cylindrical panorama images at different times. A camera posture estimation section acquires movement information of the image pickup section based on a comparison result of the image recognition section. A space sensor posture estimation section acquires a position/posture of the attached part in a space based on information of the self-sustaining movement detection unit and the camera posture estimation section.
摘要:
A communication device such as a portable video telephone capable of transmitting images as well as sound is capable of preventing the transmission of dark and featureless images resulting from the device being used in a dark location. When an image is to be transmitted, a device controller determines if the present ambient light level is too dark by measuring the light level of a light sensor. If the ambient light is inadequate, the controller generates a brightness warning on the device display, and stops image transmission.
摘要:
A reference frame adapted to be fitted to a subject of medical treatment and provided with markers for determining the position or the orientation of the subject comprises fitting section for fitting the reference frame with the subject at least three spots (tops of the left and right ears and the nasal projection) along the undulations of the surface thereof and three or more than three markers detectable at least ether in an X-ray image or in an MRI image of the reference frame, the markers being to be arranged at predetermined positions not connectable by a straight line. A surgical operation navigating system determines the coordinates of the markers in a coordinate system defined for the image taken for the purpose of medical examination of the subject who is carrying the reference frame on the basis of the obtained image. Then the corresponding relationship is established between the coordinate system for the image for examination and the coordinate system for the real space containing the markers on the basis of the result of the operation of determining the coordinates of the markers in the coordinate system for the image for examination and the coordinates of the markers in the coordinate system for the real space.