An on/off switchable source of a continuous optical signal at a respective wavelength (.lamda..sub.2) is provided to be turned off when the wavelength (.lamda..sub.1) of the modulated incoming signal corresponds to the respective wavelength (.lamda..sub.2) generated by the source while turning said source on when the wavelength (.lamda..sub.1) of the incoming signal differs from the source wavelength (.lamda..sub.2). A Michelson interferometer is provided adapted to receive the incoming signal a...

A vehicle gearbox (2) comprises a centrally operating device (28) for releasing the clutch (6), which is provided between the clutch disc and the clutch bell housing of the gearbox (2). A transmission control unit (22) provided on or in the gearbox (2) is both electrically connected directly with the device (28) and the medium for actuating the clutch (6) is received directly from the transmission control unit (22).

A repeater apparatus (1001) is constituted from infrared transmitter sections (1s, 2s, 3s) and infrared receiver sections (1r, 2r, 3r) as well as connection control sections (1C, 2C, 3C) and further a repeater section (101), thereby attaining independent communications with the individual one of several associated equipments with respect to infrared communication apparatus of the direct emission type which supports only one-to-one (1-to-1) or one-to-several (1-to-N) communication schemes, thus e...

According to a PLL circuit of the present invention, an output of a phase comparator is adjusted according to a space-to-mark transition-probability of an input signal so that an output of a voltage controlled oscillator has a predetermined frequency and phase. Therefore, even when a phase of a timing clock is set other than at 0, an output of the PLL circuit can be kept at the set phase, irrespective of the space-to-mark transition-probability. By using the PLL circuit as such in an optical com...

The present invention provides an optical wavelength multiplexing transmission apparatus and an optical output control method for an optical wavelength multiplexing transmission apparatus in an optical wavelength multiplexing transmission system using a main signal light and an OSC light. The optical wavelength multiplexing transmission apparatus (10a) is made up of a first transmitting/receiving section (52a) a second transmitting/receiving section (52b) and an apparatus supervisory control uni...

A glass ceramics having a chemical composition of aRO.bNb.sub.2.O.sub.5.cSiO.sub.2.dB.sub.2O.sub.3.eTeO.sub.2.fX (where R represents Ba and/or Sr, X represents one or more oxide selected from the group consisting of TiO.sub.2, ZrO.sub.2, P.sub.2O.sub.5 and ZnO, a>b.gtoreq.0.05, 0.60.gtoreq.c.gtoreq.0, 0.70.gtoreq.d.gtoreq.0, 0.70.gtoreq.e.gtoreq.0, c+d+e.gtoreq.0.175, a+b+c+d+e=1.0 and 0.10.gtoreq.f.gtoreq.0). The ratio dielectric constant at 1 kHz .epsilon..sub.1 to dielectric constant at 10...

A chargeable battery for medical diagnostic instruments includes a battery having an outer sheathing (2) in which an Li-ion cell (11) and a protective circuit are accommodated along with a charge/discharge module (12, 13).

At the time of shifting from one gear train among a plurality of gear trains to another gear train, a transmission for controlling a transfer torque variable mechanism and supplementing torque during shifting, during a period of transferring at least a part of torque of an engine by the transfer torque variable means, controls so as to generate engine torque larger than engine torque before the period at least once and carries out shifting.

The present invention relates to devices and methods for providing controlled environments for surgical procedures, as well as transplantation and wound healing. In particular, one embodiment of the present invention provides devices and methods to provide an anaerobic environment for incision sites. In other embodiments, the present invention provides devices and methods to maintain anaerobic conditions during the collection, transport, and implantation of organs, tissues, cells, and other tran...

In a counter shaft type transmission equipped with a pair of transmission gear trains, the input shaft of the first gear train is connected with the engine and the second gear train is connected with the engine via a motor. The torque of the first gear train is briefly shifted onto the second gear train while a gear change in the first gear train is accomplished. By setting the gear ratio of the second gear train to a half-position of gear ratio of the first gear train, motor capacity and batter...