Abstract: There is provided a magnetic circuit including a first magnetic body configured to include a magnet and a yoke plate, and a second magnetic body. The yoke plate forms an opening space at a position facing the second magnetic body. The magnet is disposed in the opening space or at a position sandwiched between the yoke plates.

Abstract: An information processing apparatus is provided that includes a control unit to execute an operating system and selectively output a first video signal or both the first video signal and a first audio signal, an external input unit to which an external content signal containing a second video signal and a second audio signal transmitted from an external apparatus is input, and a reproduction state switch control unit to selectively switch a first reproduction state for reproducing the first video signal or both the first video signal and the first audio signal, and a second reproduction state for reproducing the second video signal and the second audio signal, wherein, if input of the external content signal to the external input unit is detected during a reproduction standby state, the reproduction state switch control unit switches the reproduction standby state with the second reproduction state.

Abstract: A protective cover includes an input operating unit and a cover unit. Through the input operating unit, an input operation to an electronic apparatus is performed. In the cover unit, the input operating unit is disposed. In the protective cover, the cover unit includes a folding section and two plate sections connected to the folding section. A connection terminal section is provided to which the electronic apparatus is connected. A wiring section which interconnects the input operating unit and the connection terminal section and which is bent attendantly on folding at the folding section is disposed inside the cover unit. Folding at the folding section into a predetermined shape enables setting of a cover mode in which the electronic apparatus is covered.

Abstract: There is provided an information processing device which includes a receiving unit which receives handwriting data of an electronic pen accompanied by attribute information added by a user; a recognizing unit which recognizes a character string or a graphic from the handwriting data accompanied by the attribute information and associates the attribute information accompanying the handwriting data with the character string or the graphic; a search unit which searches for user-desired information on the basis of the character string or the graphic and the attribute information associated with the character string or the graphic; a converting unit which converts the user-desired information to display data; and a display unit which displays the display data.

Abstract: An information processing system includes an electronic pen, a position detection unit configured to detect the position of a pen tip of the electronic pen and to acquire positional information indicating the position of the pen tip of the electronic pen, a modification ID storage unit configured to store a modification ID for identifying modification of the position indicated by the positional information, a modification ID updating unit configured to update the modification ID, and a reception device including a storage unit and a registration processing unit configured to register the modification ID stored by the modification ID storage unit and the positional information acquired by the position detection unit in the storage unit as associated information.

Abstract: An information processing apparatus is provided that includes a control unit to execute an operating system and selectively output a first video signal or both the first video signal and a first audio signal, an external input unit to which an external content signal containing a second video signal and a second audio signal transmitted from an external apparatus is input, and a reproduction state switch control unit to selectively switch a first reproduction state for reproducing the first video signal or both the first video signal and the first audio signal, and a second reproduction state for reproducing the second video signal and the second audio signal, wherein, if input of the external content signal to the external input unit is detected during a reproduction standby state, the reproduction state switch control unit switches the reproduction standby state with the second reproduction state.

Abstract: The invention provides a portable information processing apparatus such as a notebook personal computer which is improved in operability for an operation element which can be rotated and pushed in. A lid member having a display screen is mounted for pivotal folding and unfolding movement on and with respect to a body of a notebook personal computer. A keyboard, a touch pad, left and right click buttons, and an operation element, which can be rotated in the forward and backward directions and can be displaced by a push-in operation, are provided on an upper face of the body. For example, when the operation element is rotated, an application is selected, and the selected application is executed by a push-in operation of the operation element.

Abstract: The invention provides a portable information processing apparatus such as a notebook personal computer which is improved in operability for an operation element which can be rotated and pushed in. A lid member having a display screen is mounted for pivotal folding and unfolding movement on and with respect to a body of a notebook personal computer. A keyboard, a touch pad, left and right click buttons, and an operation element, which can be rotated in the forward and backward directions and can be displaced by a push-in operation, are provided on an upper face of the body. For example, when the operation element is rotated, an application is selected, and the selected application is executed by a push-in operation of the operation element.