Abstract: Provided with a weight release device capable of being operated in deep sea same as the conventional weight release device without accompanying a mechanical operation at all to avoid troubles of mechanical operation occurred in the conventional weight release device. The weight release device includes a housing fixed to the underwater observation device; a thread made of thermoplastic resin; electric heater portions; a weight support plate; a locking member of the thread made of the thermoplastic resin; and a ring for hanging the weight. The thread made of the thermoplastic resin is arranged from a start point housed in the housing, arranged to pass through the first electric heater portion, locked to the locking member of the thread made of the thermoplastic resin, arranged to pass through the second electric heater portion housed in the housing, and returned to an end point housed in the housing. The ring for hanging the weight is fixed to a lower surface of the weight support plate.

Abstract: A power conversion system comprises: a plurality of power conversion devices; and a master controller capable of communicating with the plurality of power conversion devices by a serial communication channel. The master controller transmits the same control command to the plurality of power conversion devices by serial communication via the serial communication channel, and the plurality of power conversion devices each perform power conversion from the primary side to the secondary side on the basis of the same control command.

Abstract: An electric rotating machine includes a rotor and a stator. The rotor has a plurality of pairs of magnetic poles. The stator includes a stator core and a stator coil that is comprised of a plurality of phase windings wound on the stator core. The stator core has, for each of the phase windings of the stator coil, n circumferentially-consecutive single-phase slots, in which only the phase winding is received, per magnetic pole of the rotor, where n is a natural number not less than 2. Each of the phase windings of the stator coil has first to kth sections that are sequentially arranged from one end to the other end of the phase winding, where k is a natural number not less than 2. The first section is received in different ones of the single-phase slots for the phase winding from the kth section.

Abstract: A stator includes a stator core and a stator coil comprised of a plurality of electric conductor segments mounted on the stator core. Each of the electric conductor segments has an insulating coat-removed portion. Each corresponding pair of the insulating coat-removed portions of the electric conductor segments are joined with a joint formed therebetween. Each of the electric conductor segments also has an oblique portion that is comprised of a first part and a second part. The first and second parts extend, along the circumferential direction of the stator core, obliquely with respect to an axial end face of the stator core respectively at first and second oblique angles ?1 and ?2, where ?2>?1. The second part is positioned closer to the joint, where the insulating coat-removed portion of the electric conductor segment is jointed to that of another electric conductor segment, than the first part is.

Abstract: A stator includes a stator core and a stator coil comprised of a plurality of electric conductor segments mounted on the stator core. Each of the electric conductor segments has an insulating coat-removed portion. Each corresponding pair of the insulating coat-removed portions of the electric conductor segments are joined with a joint formed therebetween. Each of the electric conductor segments also has an oblique portion that is comprised of a first part and a second part. The first and second parts extend, along the circumferential direction of the stator core, obliquely with respect to an axial end face of the stator core respectively at first and second oblique angles ?1 and ?2, where ?2??1. The second part is positioned closer to the joint, where the insulating coat-removed portion of the electric conductor segment is jointed to that of another electric conductor segment, than the first part is.

Abstract: A video signal processor, having an input receiving unit for selectively receiving either of a baseband video signal and a composite video signal are selectively input as an input video signal thereto, a 1H delay unit for delaying the selected input video signal by one line period (1H), an inter-line non-correlation component extractor for extracting inter-line non-correlation components between the input video signal and the 1H delay signal from the 1H delay unit, an inter-frame non-correlation component remover for removing inter-frame non-correlation components from the selected input video signal, a first subtractor responsive to the selection of the baseband video signal for subtracting the inter-line non-correlation component from the baseband video signal processed the inter-frame non-correlation component removal at the inter-frame non-correlation component removing means to result noise-reduced baseband video signals, a second subtractor responsive to the selection of the composite video signal the i

Abstract: A vertical impulse detecting circuit 104 detects the difference between a level of data of a present horizontal line of an input composite picture signal and a level of data of each of a horizontal line a plurality of lines ahead and a horizontal line a plurality of lines behind. Either an output signal of a three-line chrominance signal separating circuit 100 or an output signal of a horizontal chrominance signal separating circuit 101 is selected as a chrominance signal (CC) that is supplied to a subtracter 105 according to an output signal of the vertical impulse detecting circuit 104.

Abstract: Image track display apparatus including a memory for delaying an image signal by at least one vertical scanning period, a first subtraction circuit for taking a first difference signal between the image signal and its delayed image signal through the memory. The first difference signal includes first and second polarity components, a non-linear processing circuit for multiplying the one polarity component of the first difference signal by K times (0<K<1) and for reducing the other polarity component of the first difference signal to the zero value when the other polarity component exceeds a prescribed value, a second subtraction circuit for taking a second difference signal between the output signal of the non-linear processing circuit and the image signal, and a display device for displaying the delayed image signal obtained through the memory circuit.