Abstract: A substrate, a diaphragm, and a piezoelectric actuator are laminated in this order in a first direction, the diaphragm includes a first layer containing silicon as a constituent element, a second layer disposed between the first layer and the piezoelectric actuator, and containing any one or both of at least one metal element selected from the group made of chromium, titanium, aluminum, tantalum, hafnium, and iridium, and silicon nitride, as a constituent element, and a third layer disposed between the second layer and the piezoelectric actuator and containing zirconium as a constituent element, and a fourth layer containing any one or both of at least one metal element selected from the group made of chromium, titanium, aluminum, tantalum, hafnium, and iridium, and silicon nitride, as a constituent element is provided on the third layer on a piezoelectric actuator side.

Abstract: An EBCOT codec (1) is provided which includes a bit modeling unit (11), arithmetic codec (12), input FIFO memory (13), output FIFO memory (14) and a controller (16). The input and output FIFO memories (13) and (14) have a function to control the bit length of to-be-stored data correspondingly to that of supplied data. For the coding, the input FIFO memory (13) is supplied with a wavelet transform coefficient of 16 bits, and for the decoding, it is supplied with a code data of 8 bits. For the coding, the output FIFO memory (14) outputs 8-bit code data, and for the decoding, it outputs wavelet transform coefficients of 16 bits. Thus, the circuit scale can be reduced and data transfer speed be improved.

Abstract: A ferrule end-surface polishing apparatus for polishing an end-surface of a ferrule for an optical fiber is provided. The apparatus includes a ferrule holder having a holder block capable of sandwiching a cylindrical portion of a ferrule, and a guide block for guiding the ferrule to the holder block; a polisher having a rotatable polishing board for polishing an axial end-surface of the ferrule held by the ferrule holder; and a ferrule transfer device for transferring and loading the ferrule into the ferrule holder, and for removing the ferrule therefrom after polishing. With this configuration, the ferrule polishing operation is automated.

Abstract: An EBCOT codec (1) is provided which includes a bit modeling unit (11), arithmetic codec (12), input FIFO memory (13), output FIFO memory (14) and a controller (16). The input and output FIFO memories (13) and (14) have a function to control the bit length of to-be-stored data correspondingly to that of supplied data. For the coding, the input FIFO memory (13) is supplied with a wavelet transform coefficient of 16 bits, and for the decoding, it is supplied with a code data of 8 bits. For the coding, the output FIFO memory (14) outputs 8-bit code data, and for the decoding, it outputs wavelet transform coefficients of 16 bits. Thus, the circuit scale can be reduced and data transfer speed be improved.

Abstract: A ferrule end-surface polishing apparatus for polishing an end-surface of a ferrule for an optical fiber, comprises ferrule holding means having a holder block capable of sandwiching a cylindrical portion of a ferrule, and a guide block for guiding the ferrule to the holder block, polishing means having a rotatable polishing board for polishing an axial end-surface of the ferrule held by the ferrule holding means, and ferrule transfer means for transferring and loading the ferrule into the ferrule holding means, and for removing the ferrule therefrom after polishing. With this configuration, the ferrule polishing operation is automated.

Abstract: A cable assembler which makes it possible to carry out in a short tact time the assembling of cable terminal which needs a plurality of jigs and tools. A robot delivers a bobbin of cable to various stations in a working area. Processing in accordance with the invention reduces tact time.

Abstract: A multicore cable includes a plurality of cables in parallel and is formed by fusion-welding the plurality of cables with a resin jacket. Each of the plurality of cables is formed by winding a shield around a signaling core wire, which is covered with an insulating material, and a grounding core wire. The resin jacket and the shield are stripped so that a stair portion is formed. The stair portion is coated with an electrically conductive adhesive. A vibration is exerted on the grounding core wire, thereby connecting the shield with the grounding core wire with the electrically conductive adhesive. Eventually, the shield and the grounding core wire are bonded with the electrically conductive adhesive. This allows an electrical connection between the shield and the grounding core wire to be maintained in a desirable condition, thus making it possible to suppress a characteristic impedance variation of the signaling core wire caused by an external factor.

Abstract: A multicore cable includes a plurality of cables in parallel and is formed by fusion-welding the plurality of cables with a resin jacket. Each of the plurality of cables is formed by winding a shield around a signaling core wire, which is covered with an insulating material, and a grounding core wire. The resin jacket and the shield are stripped so that a stair portion is formed. The stair portion is coated with an electrically conductive adhesive. A vibration is exerted on the grounding core wire, thereby connecting the shield with the grounding core wire with the electrically conductive adhesive. Eventually, the shield and the grounding core wire are bonded with the electrically conductive adhesive. This allows an electrical connection between the shield and the grounding core wire to be maintained in a desirable condition, thus making it possible to suppress a characteristic impedance variation of the signaling core wire caused by an external factor.