Abstract: Disclosed is a linear motor which includes a stator and a mover. The stator extends along a first axis. The mover is arranged so as to extend along the first axis and radially face the stator. The mover has a pole interval along the first axis different from that of the stator. At least one of the stator and the mover has a plurality of permanent magnets arranged in alignment with each other along the first axis, and a plurality of yoke parts arranged in alignment with each other along the first axis. The permanent magnets are provided, for each pole, in a continuous range along the first axis. The permanent magnets are polar anisotropic magnets that are magnetized from both end portions along the first axis to a radial end portion at a center along the first axis, or magnetized in the reverse directions to these.

Abstract: A communication apparatus connected to a first another communication apparatus is configured to: obtain a sending time of a time synchronization packet for performing time synchronization processing in accordance with precision time protocol (PTP), sent from a second another communication apparatus connected to the first another communication apparatus, in the second another communication apparatus; obtain a reception time of the time synchronization packet in the communication apparatus; and calculate a residence time of the time synchronization packet in the first another communication apparatus using the sending time and the reception time in a case where the first another communication apparatus functions as an apparatus operating as a repeater that sends a packet received from the communication apparatus or the second another communication apparatus without applying certain processing to the packet.

Abstract: A communication apparatus including a plurality of communication interfaces, a plurality of clocks, and a plurality of output units each associated with a corresponding clock, synchronizes the clocks with a time server, checks whether the clocks are in synchronization with the time server, and selects as a synchronization signal supplied to another apparatus a synchronization signal output from a corresponding output unit associated with the corresponding clock in synchronization with the time server from among the synchronization signals output from the output units. Each output unit starts outputting the signal when a time of the corresponding clock reaches a start time designated by an external apparatus, and outputs the signal when the time of the clock reaches the start time, even with the clock associated with the corresponding output unit out of synchronization with the time server.

Abstract: A communication apparatus comprises a general-purpose memory, and a high-speed memory that allows higher-speed access than the general-purpose memory. Protocol processing is executed to packetize transmission data using a general-purpose buffer allocated to the general-purpose memory and/or a high-speed buffer allocated to the high-speed memory as network buffers.

Abstract: An annular motor core has a plurality of split core pieces, each of which includes a yoke portion and a tooth. The split core pieces are circumferentially located and arranged in an annular shape such that the yoke portions of the core pieces form an annular shape as a whole and that the distal ends of the teeth of the core pieces face inward or outward each in a radial direction of the core. The core further includes an annular holder, which has joint portions at a plurality of positions in a circumferential direction of the holder. A first end of each of the core pieces is pivotably joined to the corresponding one of the joint portions. Each core piece can be pivoted about the corresponding joint portion relative to the holder such that a second end of the core piece moves in a radial direction of the holder.

Abstract: A communication apparatus comprises a general-purpose memory, and a high-speed memory that allows higher-speed access than the general-purpose memory. Protocol processing is executed to packetize transmission data using a general-purpose buffer allocated to the general-purpose memory and/or a high-speed buffer allocated to the high-speed memory as network buffers.

Abstract: An annular motor core has a plurality of split core pieces, each of which includes a yoke portion and a tooth. The split core pieces are circumferentially located and arranged in an annular shape such that the yoke portions of the core pieces form an annular shape as a whole and that the distal ends of the teeth of the core pieces face inward or outward each in a radial direction of the core. The core further includes an annular holder, which has joint portions at a plurality of positions in a circumferential direction of the holder. A first end of each of the core pieces is pivotably joined to the corresponding one of the joint portions. Each core piece can be pivoted about the corresponding joint portion relative to the holder such that a second end of the core piece moves in a radial direction of the holder.

Abstract: A camera control system capable of controlling a plurality of cameras determines whether or not the camera to be controlled is controllable. The display state of an interface is used for performing a camera operation is changed in accordance with a result of this determination.

Abstract: A camera control system capable of controlling a plurality of cameras determined whether or not the camera to be controlled is controllable. The display state of an interface used for performing a camera operation is changed in accordance with a result of this determination.

Abstract: A camera control system capable of controlling a plurality of cameras determines whether or not the camera to be controlled is controllable. The display state of an interface is used for performing a camera operation is changed in accordance with a result of this determination.

Abstract: Collision occurring on a network is reduced in a multi-point image display system for transmitting and receiving images among multiple points and receiving and displaying the image transmitted from one point at a remote point.

Abstract: This invention relates to an image sensing control method and apparatus, and an image transmission control method, apparatus, and system, in which a camera such as a video camera is connected, the operation of the camera is controlled in accordance with a control command sent from a client via a network, and an image signal sensed by the camera is transmitted to the client via the network. Upon reception of a control command of the pan and tilt angles, zoom value, or the like of the camera from the client, the position control of the camera is done in accordance with the command, and transmission of the image signal sensed by the camera is suspended until the instructed operation is complete. Alternatively, upon reception of such control command, the image signal sensed by the camera is compressed at a high compression ratio, and the compressed image signal is transmitted.

Abstract: A camera control system has one or more cameras, power supply to which can be externally controlled, one or more camera management devices for managing the cameras, one or more terminal stations which communicate with the camera management devices to display images from the cameras, and an instruction device for generating a power turn-on/off instruction of an arbitrary one of the cameras from the terminal station.

Abstract: An information processing apparatus connected to a network to which plural information processing units are connected, in order to enable variation of the image frame rate in a specified information processing apparatus, thereby displaying a watched image in a smoother manner or decreasing the frame rate of unwatched images to increase the frame rate of another image. The information processing apparatus comprises a configuration for recognizing an instruction for varying the amount of image data released from an arbitrary one among the plural information processing apparatus and controlling the amount of image data released from the arbitrary information processing apparatus according to the recognition.

Abstract: A television conference system for holding a television conference by transmitting and receiving image data between a plurality of information processing devices connected via a communicating unit includes a transmission and reception unit for transmitting and receiving image data, and a display unit for displaying the transmitted and received image data and time data. A television conference system for performing a television conference by transmitting and receiving image information between a plurality of information processing devices connected via communicating means, includes a recording unit for recording image information of each of the information processing devices in a recording medium by relating the image information to time information, a time designation unit for designating an arbitrary time, and a reproduction unit for reproducing the image information of each information processing device recorded in the recording medium in accordance with the time designated by the time designation unit.

Abstract: This invention relates to an image sensing control method and apparatus, and an image transmission control method, apparatus, and system, in which a camera such as a video camera is connected, the operation of the camera is controlled in accordance with a control command sent from a client via a network, and an image signal sensed by the camera is transmitted to the client via the network. Upon reception of a control command of the pan and tilt angles, zoom value, or the like of the camera from the client, the position control of the camera is done in accordance with the command, and transmission of the image signal sensed by the camera is suspended until the instructed operation is complete. Alternatively, upon reception of such control command, the image signal sensed by the camera is compressed at a high compression ratio, and the compressed image signal is transmitted.

Abstract: A camera control system has one or more cameras, power supply to which can be externally controlled, one or more camera management devices for managing the cameras, one or more terminal stations which communicate with the camera management devices to display images from the cameras, and an instruction device for generating a power turn-on/off instruction of an arbitrary one of the cameras from the terminal station.

Abstract: A camera control system capable of controlling a plurality of cameras has a determination means for determining whether or not the camera to be controlled is controllable, and a display control means for changing the display state of an interface used for performing a camera operation in accordance with the determination result of the determination means.

Abstract: A communication system easy to be operated upon as to the display method of images generated by image generating units of a plurality of communication terminals and as to the control of each image generating unit.

Abstract: The name of one camera to be controlled is displayed in a camera-name display field of a camera control interface displayed on a screen. When a prescribed operation is performed, the names of cameras capable of being controlled are sorted in accordance with the degrees of frequency of use thereof so that the camera names are displayed in a list in order of decreasing frequency of use. By selecting one of the displayed camera names, the camera is selected as the camera to be controlled.