摘要:
A private communication system using bus type transmission path, in which a plurality of communication terminal devices for carrying out communications and a system main device for exchanging communications from the communication terminal devices are connected by upward and downward digital transmission paths for transmitting data in forms of upward and downward transmission frames formed by a plurality of cells in fixed length. The system main device determines an allocation of idle cells in each upward transmission frame to a communication from each communication terminal device according to a communication request made by each communication terminal device, and transmits a notification for the determined allocation to each communication terminal device by using an idle cell among the cells in each downward transmission frame, such that each communication terminal device recognizes allocated cells on the upward digital transmission path available for the communication from each communication terminal device according to the notification transmitted through the downward digital transmission path.
摘要:
A transfer molding apparatus, wherein said top-half mold and said bottom-half mold form a plurality of cavities interconnected, and wherein said pressure adjusting means reduces the pressure of the cavities every time a specified amount of resin is supplied into any one of a plurality of cavities.
摘要:
An electromagnetic relay in which terminal pieces carrying fixed contact pieces can be assembled in the case for the electromagnetic relay from above. The case consists of a main case accommodating an electromagnet unit, a terminal case accommodating a contact unit and mounted on the main case, and a cover which is mounted on the terminal case. Each of the terminal pieces is fitted into a mounting position in a certain direction to be made immobile in any other direction perpendicular thereto. The cover is provided with a plurality of projections each of which engages with one of the terminal pieces to prevent it from moving in the said certain direction. Thus, the terminal pieces may be assembled from the upper end of the terminal case, and the work required for this assembly process may be significantly reduced. According to this structure, since the terminal case may be integrally provided with a bottom wall which separates the contact unit in the terminal case from the electromagnet unit accommodated in the main case, a better insulation can be achieved without in any way complicating the assembly process.
摘要:
A program information producing apparatus broadcasts program information of a next program belonging to the same program group as a subjective program in addition to the program information of the subjective program. A broadcast receiving apparatus displays the program information of the next program based on the received program information of the subjective program, thereby allowing a viewer to make a reservation of the next program after checking its content during the user viewing each event of a series of programs.
摘要:
This electronic component assembly includes: a body construction comprising a planar base portion, a fin provided as projecting from the planar base portion of the body construction, and a heat generating element fixedly attached to the planar base portion of the body construction. Thereby, very good heat dissipation is made available for the heat generating element, since no intermediate heat dissipating plate is used.
摘要:
A transfer molding apparatus, wherein said top-half mold and said bottom-half mold form a plurality of cavities interconnected, and wherein said pressure adjusting means reduces the pressure of the cavities every time a specified amount of resin is supplied into any one of a plurality of cavities.
摘要:
The present invention provides a transmitter capable of transmitting attribute information of a program while maintaining a high level of secrecy. Specifically, a transmitter (100) in a transmission and reception system comprising the transmitter (100) for transmitting program contents (21) and attribution information (22) of program and a receiver (200) for receiving the program contents (21) and accumulating part or whole of the program contents (21) transmits meaning information (24) indicating the meaning and contents of the attribute information (22) in addition to the attribute information (22).
摘要:
A hybrid relay comprising a mechanical relay provided with mechanical contact unit adapted to be actuated by an electromagnet, an electronic relay consisting of a semiconductor device, and a drive switch for supplying a drive current to the electromagnet, wherein the mechanical contact unit comprises: a first contact mechanism for controlling a load current of the hybrid relay; and a second contact mechanism for controlling a control current for a control gate of the semiconductor device; a contact point gap of the first contact mechanism being larger than that of the second contact mechanism. Thus, it is ensured that the first contact mechanism is engaged after the second contact mechanism and is disengaged before the second contact mechanism. Preferably, the mechanical contact unit further comprises a third contact mechanism, for controlling the leak current of the semiconductor device, which may be provided with a delay mechanism for delaying the returning action thereof. By maintaining the orders of engagement and disengagement of the three contact mechanisms, even when the load of the hybrid relay contains an inductive element, the generation of electric arcs in the first and third contact mechanisms is avoided. The addition of the delay mechanism simplifies the adjustment of the contact gaps of the three contact mechanisms.
摘要:
An improved push-button switch which is so arranged that generation of heat at a journalled portion of a movable piece is eliminated by forming contacts of the movable piece into double-break contacts so that no current flows through the journalled portion, while a sufficient contact gap is available even when the push-button switch is made into a compact size.
摘要:
A method of transfer molding, wherein a top-half mold and a bottom-half mold of an apparatus form a plurality of cavities interconnected, and wherein a pressure adjuster reduces the pressure of the cavities every time a specified amount of resin is supplied into any one of a plurality of cavities.