Abstract:
An example impeller includes: an impeller body in which an internal channel is formed, the internal channel extending inside the impeller body in a direction of a rotation axis spirally about the rotation axis to connect an inlet and an outlet; and at least one centrifugal vane provided in the impeller body. The internal channel including the inlet and the outlet has a predetermined passage diameter. An external channel is formed so as to continue to the outlet and go around the circumferential surface of the impeller body, the external channel being defined by the centrifugal vane and being recessed inward in the radial direction from the circumferential surface of the impeller body. At least a part in a flow direction of the external channel has a channel width in the direction of the rotation axis smaller than the width of the outlet.
Abstract:
A control device acquires from the content server options for purchasable video contents to display the options, accepts from an input unit a manipulation for determination of a video content to be purchased out of the options, and sends the viewing device a control event. A viewing device executes purchase processing for the video content, which is determined to be purchased, on the basis of the control event received from the control device, acquires the purchased video content from the content server, and plays the video content on the output unit. The control device further causes a control event to control the play of the video content by the viewing device, and sends the viewing device the control event. The viewing device controls the play of the video content on the basis of the control event received from the control device.
Abstract:
Disclosed is a screen display control method by radio of controlling screen display on an operation target device, by transmitting data based on an operation performed on an operation device to the operation target device through radio communication that comprises extracting touch position coordinates from operation events at intervals of a predetermined time N, the operation events generated by one flick operation on a touch panel of the operation device, and transmitting the extracted touch position coordinates to the operation target device and executing screen scroll display control by the operation target device based on the touch position coordinates received from the operation device at intervals of the predetermined time N. When touch position coordinates are not received at intervals of the predetermined time N, the operation target device predicts the missing touch position coordinates, based on previous received touch position coordinates.
Abstract:
A controlled device generates an authentication random number. A control device accepts input of a random number from an input device. The controlled device verifies if the displayed authentication random number and the random number transferred from the control device are identical to transfer a public key of the controlled device to the control device. The controlled device generates a token. The control device encrypts the token with the public key of the controlled device. The controlled device decrypts the token and verifies if the token transferred from the control device and the generated token are identical to generate a session key. The control device stores the session key into the storage device. The control device controlling the controlled device by encrypted communication using the session key.