Abstract: A code multiplexing/reading apparatus includes a first register. Two codes that reside in a predetermined relationship are outputted from the first register, which are superimposed on a video signal to be recorded by operation of switches. Consequently, a video recording device records a code-multiplexed video signal on a recording medium. When the code-multiplexed video signal is reproduced from the medium by a video reproducing device, two codes taken out of the reproduced video signal are compared with each other by a comparator. When the two codes are “1001101” and “0110010”, the inversion of the former code agrees with the latter code. Therefore, the former code is outputted as a predetermined code from a second register.

Abstract: A bus bar is connected between a battery post and a stud bolt to which an electric power supply wire is connected. An opening is provided in a housing in which an explosive sealing portion is accommodated. Just before the opening, a broken portion of the bus bar is provided. In the broken portion, a recess portion is formed, and this portion of the broken portion is thin. On both sides of the broken portion, a cutout portions are formed. In case of emergency, electric current generates in a trigger wire, and an explosive in the explosive sealing portion is exploded. An explosive force is directed to the opening of the housing, and the broken portion located just before the opening receives the explosive force forward. Due to the foregoing, the recess portion is broken and both broken pieces are bent at the cutout portions and opened being separated from each other. In this way, an electric power supply circuit is shut off.

Abstract: The invention enables an electronic system, which is conveniently operated by a user, to be easily installed in a vehicle, such as an automobile, etc. A structure of electric equipment for a vehicle is provided, wherein vehicle-side connectors are disposed in a plurality of places in the vehicle. Constituent elements of an electronic system used in the vehicle are partly combined with a detachable connector capable of being connected to any one of the vehicle-side connectors to thereby form a detachable unit. Electronic system constituent elements in the detachable unit and electronic system constituent elements provided in the vehicle body are connected to each other to construct a new electronic system when the detachable connection is connected to any one of the vehicle-side connectors. As a result, a user's favorite detachable unit can be used in a user's favorite position.

Abstract: A circuit breaking device includes a socket provided on the way of a circuit, a plug movably disposed in a direction that the plug is inserted into and removed from the socket, an explosive exploding in response to a trigger signal given thereto to thereby drive the plug by explosion force to move advanced, and the plug which is normally disposed in a retreated position at where the plug is in a conductive state with said socket, while the plug is in a non-conductive state with said socket when the plug moves to an advanced position.

Abstract: An apparatus for detecting a trouble location in a wire harness can easily detect a location of any trouble such as breakage or short circuit in electric wires in a wire harness and in particular can detect the trouble location by way of a simple structure utilizing a portion with a shield function. In the detecting apparatus, a pulse signal is transmitted in electric wires (2) in a wire harness (1), in which a trouble location is to be detected, and in a sensing line juxtaposed along the electric wires (2) at their ends. A measuring device (20) receives a reflected wave from a transmitted wave and measures a difference in time between the transmitted wave and the reflected wave. A distance from a transmitting end point to a trouble location point is determined in accordance with the difference in time and a signal propagation velocity. Each electric wire (2) in the wire harness (1) is a single wire having no splice portion and a shielded wire having a conductive shield sheath (10).

Abstract: A microcomputer 4 responds to an instruction signal to turn the load L on or off to control the FET 2 through the drive circuit 5. The microcomputer 4 samples an electric current I.sub.L which is supplied through the A/D converter 6 and which flows in the load L at every predetermined sampling time T.sub.S and subjects the sampled electric current I.sub.L to a comparison with a known rated current value I.sub.R for the load L. When I.sub.L .gtoreq.I.sub.R is satisfied, the microcomputer 4 starts counting energizing time T. When the accumulated value of I.sub.L .times.T.sub.S is enlarged to a predetermined value S.sub.O, the microcomputer 4 turns the FET 2 off. When the detected electric current I.sub.L is larger than an upper limit I.sub.O (>I.sub.R) determined previously, the microcomputer 4 immediately turns the FET 2 off through the drive circuit 5.

Abstract: A method for detecting a trouble location in wire harnesses can easily detect a position of trouble such as breakage, short circuit, or the like in the wire harnesses without bringing enlargement and complication into the wire harnesses. This method includes the steps of: setting each of electric wires (2) in a main line part (4) and a branch line part (5) of a wire harness (1) as a sensing line, the wires (2) being juxtaposed to each other in the respective parts (4, 5); transmitting a pulse wave in a measuring line of a trouble electric wire in the wire harness and the sensing line corresponding to the measuring line at their ends by a pulse generating unit (11); receiving a pulse wave reflected at a trouble point and measuring a difference in time between the transmitted pulse wave and the reflected pulse wave by a synchroscope (12); and computing a distance from a measuring point to the trouble point in accordance with the difference in time and a pulse propagation velocity by a computing unit (13).

Abstract: An electrical connection construction for connecting conductive members of an internal circuit of an electrical connection box and wires of a wiring harness, in which the wires of the wiring harness are inserted into the electrical connection box through openings formed on the electrical connection box such that conductors of the wires of the wiring harness are connected to the conductive members of the internal circuit of the electrical connection box, respectively by a joining member.

Abstract: A video signal outputting apparatus includes an A/D converter, and video signals Y1-1 and Y3-1 outputted from the A/D converter are written into areas C1 and C3 of a VRAM, and therefore, images according to the video signals are displayed on a monitor. Then, video signals Y1-2 and Y3-2 are outputted from the A/D converter, and written into an area C5 of a further VRAM and the area C1 of the VRAM, respectively. Images according to the video signals Y1-2 and Y3-1 are displayed on the monitor at a timing that writing of the video signal Y1-2 is finished, and images according to the video signals Y1-2 and Y3-2 are displayed at a timing that writing of the video signal Y3-2 is finished.

Abstract: An electric power distribution system is shown where even if supply of electric power is interrupted, other normal electric part systems can be operated. A number of electric power distribution portions are supplied with electric power through at least two systems of electric power lines. The amounts of electric currents in the two systems of the trunk lines respectively are detected and monitored by a sensor and each current detection portion. Moreover, a controller controls a switch corresponding to a sensor which has detected an abnormal value among output values from a number of current detection portions to make non-conductive the trunk line from which the abnormal value has been detected. If a fault takes place in, for example, the trunk line between the electric power distribution portions, the two ends of the trunk line respectively are disconnected by the switch.

Abstract: A flame-retardant spray-foamable phenolic urethane composition comprising a polyisocyanate component, a polyol component, an urethane-forming catalyst, a blowing agent and a foam stabilizer, wherein the polyol component comprises:(1) a modified benzylic ether phenol resin obtained by adding from 20 to 100 parts by weight of a polyhydric alcohol or its alkyleneoxide adduct to 100 parts by weight of a benzylic ether phenolic resin, followed by heating under reduced pressure, and(2) other polyol, in such amounts as to satisfy the following equation:(x+y)/z=0.2-1.5wherein x is the amount by weight of the polyhydric alcohol or its alkyleneoxide adduct, y is the amount by weight of said other polyol, and z is the amount by weight of the benzylic ether phenol resin.