Abstract: A timer apparatus which can simultaneously control the operations of a plurality of timers without adjusting the operation of a counter of each timer in a software manner is provided. Since same address information is added to an operation command to the counter of each timer (20, 30, 40, . . . , 90), the operation commands to the counters are simultaneously written into the registers synchronously with a clock. Thus, the timing to start or stop the operations of the counters of the timers (20, 30, 40, . . . , 90) can be made coincide.

Abstract: A timer apparatus which can simultaneously control the operations of a plurality of timers without adjusting the operation of a counter of each timer in a software manner is provided. The same address information is added to an operation command to the counter of each timer (20, 30, 40, . . . , 90), so the operation commands to the counters are simultaneously written into registers synchronously with a clock. Thus, the timing to start or stop the operations of the counters of the timers (20, 30, 40, . . . , 90) can be made to coincide.

Abstract: A semiconductor integrated circuit includes a bridge circuit which controls a data transfer of a bus line, peripheral circuits which are connected to the bridge circuit through the busline, and a control circuit which is formed at the peripheral circuits. The control circuit receives a select signal and controls the data transfer in the peripheral circuits in accordance with a logic state of the select signal.

Abstract: An optical switch 1 of the present invention comprises an optical fiber arraying member 21 for keeping a plurality of first optical fibers 20 juxtaposed with tip portions thereof being aligned, a movable arm 31, opposed to the optical fiber arraying member, for holding a tip portion of at least one second optical fiber 30, a driving mechanism 40 for driving this movable arm 31 to selectively optically coupling the second optical fiber 30 with an arbitrary first optical fiber 20, a supplying mechanism 60 for, when a first optical fiber 20 is optically coupled with the second optical fiber, dropping and charging an index matching agent to a gap between these optical fibers 20, 30, and drop controllers 67, 68 for controlling the supplying mechanism 60, wherein the index matching agent is dropped and charged into only the gap between the optical fibers, so that foreign matter produced in the driving mechanism 40 or the like is prevented from intruding into the coupling part between the optical fibers 20, 30, thus

Abstract: An optical switch of the present invention comprises an optical fiber arranging member in which tip ends of a plurality of first optical fibers are juxtaposed, a movable arm facing the optical fiber arranging member and fixing a tip end of a second optical fiber, and a drive mechanism for driving at least one of the optical fiber arranging member and the movable arm, for switching of optical connection, in an arrangement direction of the first optical fibers and in a direction perpendicular to the arrangement direction of the first optical fibers to optically couple the second optical fiber with the first optical fiber, wherein the optical fiber arranging member and the movable arm are encased in a sealing case and wherein an antireflection agent is filled in the sealing case.

Abstract: An optical switch of the present invention comprises an optical fiber arranging member in which tip ends of a plurality of first optical fibers are juxtaposed, a movable arm facing the optical fiber arranging member and fixing a tip end of a second optical fiber, and a drive mechanism For driving at least one of the optical fiber arranging member and the movable arm, for switching of optical connection, in an arrangement direction of the first optical fibers and in a direction perpendicular to the arrangement direction of the first optical fibers to optically couple the second optical fiber with the first optical fiber, wherein the optical fiber arranging member and the movable arm are encased in a sealing case and wherein an antireflection agent is filled in the sealing case.

Abstract: A set top terminal of the present invention includes: a tuner unit for receiving a signal from an external input terminal and selecting a signal of a predetermined frequency; a signal processing unit for decoding the selected signal; a modulation unit for outputting a signal obtained by decoding the selected signal from an external output terminal; a control unit for controlling the tuner unit, the signal processing unit and the modulation unit; a power source unit for supplying power to the tuner unit, the signal processing unit, the modulation unit and the control unit, respectively; and a main board on which the tuner unit, the signal processing unit, the modulation unit and the control unit are placed, wherein the tuner unit, the signal processing unit, the modulation unit, the control unit and the power source unit are separate individual bodies.

Abstract: The present invention involves a method of writing an identification number of a CATV receiving apparatus and intends to achieve a rapid write operation and reduction in the capacity of a control program. A microcomputer (7) is reset in a first step (15) and a write pin (13) of a memory write unit (10) is brought into direct engagement with an input/output terminal (8a) of a memory (8) in a second step (16). Subsequently, in a third step (17), a preset identification number of the CATV receiving apparatus is written into the memory (8) through the write pin (13), so that the microcomputer (7) need not start any identification number write program and a rapid write operation can be ensured. No identification number write program is required for the microcomputer (7) and therefore, reduction in the capacity of the control program can be realized.

Abstract: The present invention relates to an optical switch comprising a fiber arranging member having a substrate 1 with a plurality of fiber fixing grooves formed in an upper surface thereof, first optical fibers 2 fixed in the fiber fixing grooves, and a convey mechanism 5 for conveying a second optical fiber 6 to be connected to a corresponding first optical fiber 2 to a corresponding fiber fixing groove, wherein fiber introduction grooves 1h for guiding the end portion of the second optical fiber 6 are formed at the end portions of the fiber fixing grooves that fix the end portions of the first optical fibers 2.

Abstract: Concrete for placement in air featured by the quantity of mixing water of not more than 175 kg/m.sup.3, the content of hydraulic component materials of 400-700 kg/m.sup.3, nonuse of anti-foaming agent, the addition of a water-soluble polymer substance in an amount such as will give a viscosity in a range of 5 to 2,000 centipoises when dissolved in 1,000 g of water of 20.degree. C., and further, the addition of a high-range air-entraining, water-reducing agent in 0.1 to 2% by dry weight of the hydraulic component materials. This method of manufacturing concrete for placement in air has the effects of extremely little segregation, high deformability, and no necessity for consolidation.