Abstract: A data processing apparatus including a waveform data acquisition unit which acquires waveform data of a consumption current and/or a voltage of a target device, a feature value extraction unit which extracts a waveform feature value from the waveform data, an environment data acquisition unit which acquires environment data indicating an environment of the target device at the time when the waveform data is acquired, an operation state data acquisition unit which acquires operation state data indicating an operation state of the target device at the time the waveform data is acquired, a distance calculation unit which calculates a distance between each of members including the waveform feature value, the environment data, and the operation state data, and each of a plurality of reference members, a grouping unit which groups the members, and a registration unit which registers a group satisfying a predetermined condition as training data.

Abstract: A data processing apparatus including a waveform data acquisition unit which acquires waveform data of a consumption current and/or a voltage of a target device, a feature value extraction unit which extracts a waveform feature value from the waveform data, an environment data acquisition unit which acquires environment data indicating an environment of the target device at the time when the waveform data is acquired, an operation state data acquisition unit which acquires operation state data indicating an operation state of the target device at the time the waveform data is acquired, a distance calculation unit which calculates a distance between each of members including the waveform feature value, the environment data, and the operation state data, and each of a plurality of reference members, a grouping unit which groups the members, and a registration unit which registers a group satisfying a predetermined condition as training data.

Abstract: A slip ring device includes a hollow pipe-shaped shaft rotatably supported inside a tubular body of a main case through a bearing and an electricity-collecting body integrally and concentrically provided in the shaft. The electricity-collecting body preferably includes a plurality of electricity-collecting rings and a plurality of insulating rings alternately layered with one another. The slip ring device further includes a plurality of brushes held by the main case and tip end portions making sliding contact with outer circumferential surfaces of the electricity-collecting rings and a plurality of lead lines introduced into the shaft. The lead lines include tip end portions electrically connected to the respective electricity-collecting rings. Two or more of the lead lines include shielded lines.

Abstract: A slip ring device includes a hollow pipe-shaped shaft rotatably supported inside a tubular body of a main case through a bearing and an electricity-collecting body integrally and concentrically provided in the shaft. The electricity-collecting body preferably includes a plurality of electricity-collecting rings and a plurality of insulating rings alternately layered with one another. The slip ring device further includes a plurality of brushes held by the main case and tip end portions making sliding contact with outer circumferential surfaces of the electricity-collecting rings and a plurality of lead lines introduced into the shaft. The lead lines include tip end portions electrically connected to the respective electricity-collecting rings. Two or more of the lead lines include shielded lines.

Abstract: A joystick for an electro-hydraulic control system is provided with a rotary potentiometer having a pivotable arm. This pivotable arm is integrally arranged on a rotary shaft and pivots responsive to pivotal control of a joystick in a predetermined direction or a direction opposite to the predetermined direction. The joystick is also provided with a torsion coil spring for normally holding the pivotable arm in a neutral position, a pin arranged on the pivotable arm and capable of expanding the torsion coil spring upon pivotal movement of the pivotable arm, a holding pin for holding the torsion coil spring at its coil portion, and a cover member having a pair of guide portions for limiting movements of the coil portion of the torsion coil spring in the predetermined direction and the opposition direction when the torsion coil spring is in its neutral position.

Abstract: A joystick for an electro-hydraulic control system is provided with a rotary potentiometer having a pivotable arm. This pivotable arm is integrally arranged on a rotary shaft and pivots responsive to pivotal control of a joystick in a predetermined direction or a direction opposite to the predetermined direction. The joystick is also provided with a torsion coil spring for normally holding the pivotable arm in a neutral position, a pin arranged on the pivotable arm and capable of expanding the torsion coil spring upon pivotal movement of the pivotable arm, a holding pin for holding the torsion coil spring at its coil portion, and a cover member having a pair of guide portions for limiting movements of the coil portion of the torsion coil spring in the predetermined direction and the opposition direction when the torsion coil spring is in its neutral position.

Abstract: In an industrial robot having a plurality of arms, each arm is coupled with other elements, such as a mounting base, another arm, a robotic hand, and revolved by a motion of the revolvable joint. The revolvable joint has a rotary electric connecting structure such as a slip ring or a rotary transformer which can be rotated endlessly. Electric powers for driving motors by which the arms are revolved and control signals for controlling the driving of the motors are supplied or transmitted through the rotary electric connecting structure, so that the arms can be rotated endlessly without twisting or breaking of electric cables.

Abstract: In an industrial robot having a plurality of arms, each arm is coupled with other elements such as a mounting base, another arm, a robotic hand, and revolved by a motion of the revolute joint. The revolute joint has a rotary electric connecting structure such as a slip ring or a rotary transformer which can be rotated endlessly. Electric powers for driving motors by which the arms are revolved and control signals for controlling the driving of the motors are supplied or transmitted through the rotary electric connecting structure, so that the arms can be rotated endlessly without twisting or breaking of electric cables.

Abstract: A rewritable read only memory (ROM) file device having a special area storing a directory, a file allocation table, and a rewritable area. An access controller copies the content of the special area into a buffer by an initialization process. After the initialization process, the access controller converts subsequent access requests to the special area of the ROM file device into an access to the buffer. The access controller detects a termination of a use of the ROM file device and, in response, returns the data stored in the buffer to the device's special area.

Abstract: A CSK modulation is applied to transmit input data for transmission by using N PN code series. A modulator for N series synthesizes a predetermined number (n) of PN code series selected from N PN code series in response to m bits in the input data, and the synthesized code series is transmitted onto a transmission medium through a transmitting interface. The PN code series which is actually transmitted has a maximum value of the absolute magnitude of auto-correlation which is always greater than a maximum value of the absolute value of cross-correlations between the remaining synthesized PN code series.

Abstract: A data browsing apparatus displays data automatically in an automatic page-turning mode. The data browsing apparatus has dynamic picture display parameters comprising a frame display time (w), a frame display pitch (m), and a display priority (r). The dynamic picture display parameters may be calculated based on automatic page-turning options designated by users. Dynamic pictures are displayed with accuracy at the automatic page-turning interval.

Abstract: Before dither-processed data are input to a compression processing section, dither-processed data of a previous frame and dither-processed data of a current frame are subjected to inter-frame differential processing in a differential processing section to form signal series having long white and black run length for the data input to the compression processing section, thereby enhancing the compressibility. A coding control section for performing coding processing beforehand sets a flag for determining whether each of the dither processing, the differential processing and the compression processing is performed. Each processing is performed on the basis of the flag information.

Abstract: The present invention provides new arrangements for various components of a CSK communication system: modulator, correlators, demodulator, carrier detection circuit, and synchronization control circuit. The various improvements provide more accurate demodulation of data from the received signal in the presence of noise and signal deterioration. A modulator configuration permits the CSK system to use two M series codes in which the second code is simply a phase shifted version of the first code. The PN correlators, via shift-registers, efficiently output two correlation signals. The demodulator accepts two correlation signals from the correlators, detects auto-correlation peaks in the correlation signals, and uses the peaks to accurately determine whether the received bit has a value of "1" or "0". The carrier detecting circuit detects the presence of data in the received signal.

Abstract: This invention is directed to various improvements in spread spectrum power line communications. One aspect of the invention relates to collision avoidance between varius "slave" unit transmitters trying to send messages to a single "master" unit receiver by detecting whether the transmission path is in use and refraining from transmitting if it is. Other aspects of the invention relate to controlling the frequencies of spread spectrum data messages transmitted, using gold codes to identify the slave units, and switching frequency bands on the powe line to avoid frequencies where there has been a deterioration of transmission. In each embodiment, the signal modulated over the power line is modulated by a signal which is synchronous with A.C. power flowing through the power line used for communications.

Abstract: A magnetic drum and parts ancillary thereto are enclosed in a housing consisting of an upper casing and a lower casing to form a cassette-type magnetic drum unit for voice information system. The magnetic drum cassette is releasable from the system which includes a magnetic head for reproducing the voice information stored in the magnetic drum.

Abstract: There is disclosed a method of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging current. This disconnecting switch has a movable electrode and a fixed electrode which are arranged in a tank so as to face each other. One of these electrodes is connected to an electrostatic capacity load and the other is connected to a power supply. This test method comprises the steps of: applying a voltage from the power supply through the disconnecting switch to the load to cause the voltage to be trapped in the load; and applying a voltage of the polarity opposite to that of the trapped charged voltage from the power supply to the disconnecting switch to cause the discharge between those electrodes, thereby verifying the performance for insulation to ground.