摘要:
A device for enabling a local area network wiring structure to simultaneously carry digital data and analog telephone signals on the same transmission medium. It is particularly applicable to a network in star topology, in which remote data units (e.g. personal computers) are each connected to a hub through a cable comprising at least two pairs of conductors, providing a data communication path in each direction. Modules at each end of the cable provide a phantom path for telephony (voice band) signals between a telephone near the data set and a PBX, through both conductor pairs in a phantom circuit arrangement. All such communication paths function simultaneously and without mutual interference. The modules comprise simple and inexpensive passive circuit components.
摘要:
An electrical connector provides both electrically conductive connection and inductive connection, and includes at least one electrically conductive member adapted to provide electrically conductive connection to another electrically conductive member, an inductive electrical member adapted to provide inductive coupling with another inductive electrical member, and wherein the at least one electrically conductive member and the inductive electrical member being held in positional relation to each other to be positioned with respect to a further electrical connector for electrically conductive connection and inductive coupling with respect thereto. A method of connecting electrical signals uses a pair of electrical connectors, each having an electrically conductive connection portion and an inductive connection portion to provide for both electrically conductive connection and inductive coupling between the electrical connectors.
摘要:
A method and apparatus for enabling a local area network wiring structure to simultaneously carry digital data and analog telephone signals on the same transmission medium. It is particularly applicable to a network in star topology, in which remote data units (e.g. personal computers) are each connected to a hub through a cable comprising at least two pairs of conductors, providing a data communication path in each direction. Modules at each end of the cable provide a phantom path for telephony (voice band) signals between a telephone near the data set and a PBX, through both conductor pairs in a phantom circuit arrangement. All such communication paths function simultaneously and without mutual interference. The modules comprise simple and inexpensive passive circuit components.
摘要:
A connection system for the preferably contactless transmission of data and power supply signals between a sensor means and a base unit in a measuring and transmission system comprises a sensor-side and a base-side connection element. An input unit is provided on at least one of the connection elements for inputting sensor-relevant commands.
摘要:
A method and apparatus for enabling a local area network wiring structure to simultaneously carry digital data and analog telephone signals on the same transmission medium. It is particularly applicable to a network in star topology, in which remote data units (e.g. personal computers) are each connected to a hub through a cable comprising at least two pairs of conductors, providing a data communication path in each direction. Modules at each end of the cable provide a phantom path for telephony (voice band) signals between a telephone near the data set and a PBX, through both conductor pairs in a phantom circuit arrangement. All such communication paths function simultaneously and without mutual interference. The modules comprise simple and inexpensive passive circuit components.
摘要:
The invention provides an electrical coupling device. The coupling includes a contactor device and a plurality of electrical contacts which close an electrical circuit between the contactor device and an adaptor device when the adaptor device is brought into physical contact with the contactor device, there being no need for aligning for the electrical contacts of the contactor device with electrical contact of the adaptor device.
摘要:
A wired drill pipe segment includes a tubular body having an axial bore, a box end disposed at a first end of the tubular body having a first core material disposed in the box end, a pin end disposed at a second end of the tubular body having a second core material disposed in the pin end, a first coil winding wound around at least a portion of the first core material and a second coil winding wound around at least a portion of the first core material, a third coil winding wound around at least a portion of the second core material and a fourth coil winding wound around at least a portion of the second core material, a first conductor connected to the first coil winding and the third coil winding and extending through the tubular body, and a second conductor connected to the second coil winding and the fourth coil winding and extending through the tubular body.
摘要:
An electric junction box includes a circuit construct as an internal circuit component. The circuit construct includes relays mounted on one side of a printed circuit board and bus bars fixed on the other side of the printed circuit board. The circuit construct is divided into a basic standard circuit construct and an optional circuit construct, in which the basic circuit construct is used in a plurality of grades of a vehicle family, in different vehicle families of the same grade, or in all vehicle families. Multiple circuit constructs may be combined as necessary and put in a side by side relationship. On the bus bar side of the circuit constructs, a heat sink is attached such that it is exposed to the opening provided on the case of the electric junction box.
摘要:
A wired drill pipe for a drill string of a downhole tool positioned in a wellbore penetrating a subterranean formation is provided. The wired drill pipe includes a drill pipe, a cable and a wire retainer. The drill pipe has a slot at each end thereof. The slots are adapted to receive at least one transformer. The drill pipe has an inner surface defining a passage for the flow of mud therethrough. The cable extends from the transformer into the passage of the drill pipe. The wire retainer is positioned on the inner surface of the drill pipe. The wire retainer is adapted to secure the cable therein.
摘要:
A connector (30) can include a housing (32), a plurality of magnets (14) within the housing used for data transfer and at least one alignment magnet (16 or 18) within the housing used for proper alignment and polarity. The connector can also include at least one magnetic induction circuit (52) coupled to at least one of the plurality of magnets. The plurality of magnets can include a plurality of inductor elements or micro-metric inductor elements. The magnetic induction circuit can be a magnetic induction circuit using Gaussian Minimum Shift Keying modulation. A connector (64) can further include an inductive coil (67) operating at a lower frequency than the at least one magnetic induction circuit. The inductive coil can enable contactless energy transfer from the connector to an energy storage device (69) operatively coupled to an electronic product (62).