Abstract: The present invention provides an apparatus for transferring data through an electromagnetic coupler. The apparatus comprises a transmitter to encode a first plurality of bits into a symbol, a receiver to decode a transferred symbol into a second plurality of bits; and a coupling element having a geometry that provides robust electromagnetic transfer of the symbol and the transferred symbol. For one embodiment of the apparatus, the coupling element has a zig-zag geometry.

Abstract: A system includes a first bus coupler element, a second bus coupler element, and a visual element associated with the second bus coupler element and including a transparent media enabling the second coupler element to be visually aligned with the first coupler element.

Abstract: A controller sends signals to an electromagnetic coupler associated with a bus. The signals are arranged to set a coupling strength of the coupler.

Abstract: A controller sends signals to an electromagnetic coupler associated with a bus. The signals are arranged to set a coupling strength of the coupler.

Abstract: A controller sends signals to an electromagnetic coupler associated with a bus. The signals are arranged to set a coupling strength of the coupler.

Abstract: In some embodiments, a hybrid coupler is provided with a resistive coupler to conductively tap a transmission line and an electromagnetic coupler to be disposed next to the transmission line to electromagnetically tap it. Other embodiments are disclosed herein.

Abstract: A system includes a first bus coupler element, a second bus coupler element, and a visual element associated with the second bus coupler element and including a transparent media enabling the second coupler element to be visually aligned with the first coupler element.

Abstract: In some embodiments, a first conducting line, having a characteristic impedance, connects to a digital device while a second conducting line, also having a characteristic impedance, connects to another digital device. An impedance pathway connects the two conducting lines and has an impedance of at least one-third of the first conducting line's characteristic impedance and of at least one-third of the second conducting line's characteristic impedances. Other embodiments are claimed.

Abstract: Electromagnetic coupling locations are provided along a bus. Devices can be respectively coupled at the locations for communication on the bus. Electromagnetic coupling strengths associated with at least some coupling locations are caused to have different, selected values.

Abstract: A controller sends signals to an electromagnetic coupler associated with a bus. The signals are arranged to set a coupling strength of the coupler.

Abstract: The present invention provides a mechanism for supporting high digital bandwidth in a multi-drop bus system. A first device of the system is electrically coupled to a bus. Multiple receiving devices are coupled to the bus through associated electromagnetic couplers having coupling coefficients in a specified range. The geometries of the electromagnetic couplers are selected to reduce variations in the coupling coefficients with changes in the relative positions of the coupler components.

Abstract: A connector is configured for insertion and removal of a digital device. The connector has contacts arranged to make electrical connection to conductors on the digital device while the digital device is inserted in the connector. A first electromagnetic coupler is connected to at least one of the contacts of the connector. The electromagnetic coupler is configured for electromagnetic coupling at an interface to a second electromagnetic coupler that is connected to a communication bus.

Abstract: An assembly (for example, an assembly in the form of an interposer that is distinct from a motherboard and from the devices that communicate with the motherboard) includes electromagnetic couplings. Each of the electromagnetic couplings couples signals being communicated between a device and a bus. Each of the electromagnetic couplings is connected to (a) an associated bus connector to provide connections of the couplings to the bus, and (b) an associated device connector to provide connections of the couplings to the device.

Abstract: A compact electromagnetic coupler for use with digital transmission system is described. In one embodiment, the apparatus includes a first transmission structure, including a portion having a geometry. A second transmission structure having the geometry and positioned proximate the portion of the first transmission line structure having the geometry to form a compact electromagnetic coupler with the first transmission structure a geometry of the electromagnetic coupler to enable placement within a footprint of a standard card connector. The compact electromagnetic coupler so formed enables reconstruction of the logical state and timing of a signal transmitted along the first transmission structure.

Abstract: An electromagnetic (EM) coupler including a first transmission structure having a first geometry, and a second transmission structure having a second geometry and forming an EM coupler with the first transmission structure, the first and second geometries being selected to reduce sensitivity of EM coupling to relative positions of the first and second transmission structures is disclosed.

Abstract: A system includes a first bus coupler element, a second bus coupler element, and a visual element associated with the second bus coupler element and including a transparent media enabling the second coupler element to be visually aligned with the first coupler element.

Abstract: A compact electromagnetic coupler for use with digital transmission system is described. In one embodiment, the apparatus includes a first transmission structure, including a portion having a geometry. A second transmission structure having the geometry and positioned proximate the portion of the first transmission line structure having the geometry to form a compact electromagnetic coupler with the first transmission structure a geometry of the electromagnetic coupler to enable placement within a footprint of a standard card connector. The compact electromagnetic coupler so formed enables reconstruction of the logical state and timing of a signal transmitted along the first transmission structure.

Abstract: The method of networking comprises connecting a first coupler to a first and second transmission line to couple the first and second transmission lines, connecting a second coupler to the second and a third transmission line to couple the second and third transmission lines, connecting a third coupler to the first and third transmission line to couple the first and third transmission lines, connecting a first end of the first transmission line to a first digital device, connecting a first end of the second transmission line to a second digital device, and connecting a first end of the third transmission line to a third digital device. A signal is transmitted through the first, second, or third transmission line, by one of the digital devices, and is received by at least one digital device different from the transmitting digital device.

Abstract: A system includes a first bus coupler element, a second bus coupler element, and a visual element associated with the second bus coupler element and including a transparent media enabling the second coupler element to be visually aligned with the first coupler element.

Abstract: The present invention provides a mechanism for supporting high digital bandwidth in a multi-drop bus system. A first device of the system is electrically coupled to a bus. Multiple receiving devices are coupled to the bus through associated electromagnetic couplers having coupling coefficients in a specified range. The geometries of the electromagnetic couplers are selected to reduce variations in the coupling coefficients with changes in the relative positions of the coupler components.