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: 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: The present invention provides a chipset for transferring data through an electromagnetically coupled bus system. The chipset includes a modulator, a matching circuit and a demodulator. The modulator modifies a clock to encode multiple bits in a complementary pair of symbols. The matching circuit modifies the clock signal to generate a complementary pair of reference signals that is transmitted with the complementary symbol pair, and the demodulator decodes a second set of bits from selected properties of a complementary pair of transferred symbols.

Abstract: Calibrating return time includes determining clock calibration information based on clock signals local to a master device and return clock signals corresponding to each of at least two slave devices, storing clock calibration information with respect to each of the slave devices with which the master device will communicate using a bus, and, after the clock calibration information has been stored, resynchronizing data signals that are received from each of the slave devices based on the corresponding stored clock calibration information.

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 combining programming signals to provide an output signal, the properties of which depend only on selected properties of the programming signals. An embodiment of the invention includes first and second edge-to-pulse converters. The first edge-to-pulse converter generates an intermediate signal having a width determined by received initiation and termination signals. The second edge-to-pulse converter generates an output signal, responsive to the intermediate signal and the termination signal. The output signal has a width determined by a first edge of the initiation signal and a first edge of the termination signal.

Abstract: The present invention provides a mechanism for combining programming signals to provide an output signal, the properties of which depend only on selected properties of the programming signals. An embodiment of the invention includes first and second edge-to-pulse converters. The first edge-to-pulse converter generates an intermediate signal having a width determined by received initiation and termination signals. The second edge-to-pulse converter generates an output signal, responsive to the intermediate signal and the termination signal. The output signal has a width determined by a first edge of the initiation signal and a first edge of the termination signal.

Abstract: Calibrating return time includes determining clock calibration information based on clock signals local to a master device and return clock signals corresponding to each of at least two slave devices, storing clock calibration information with respect to each of the slave devices with which the master device will communicate using a bus, and, after the clock calibration information has been stored, resynchronizing data signals that are received from each of the slave devices based on the corresponding stored clock calibration information.

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: Performing low power modulation enabling a modulation scheme that conveys at least two bits of information using differential voltages having variable common mode voltage and using two voltage references and rejecting the common mode voltage.

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: The present invention provides a mechanism for combining programming signals to provide an output signal, the properties of which depend only on selected properties of the programming signals. An embodiment of the invention includes first and second edge-to-pulse converters. The first edge-to-pulse converter generates an intermediate signal having a width determined by received initiation and termination signals. The second edge-to-pulse converter generates an output signal, responsive to the intermediate signal and the termination signal. The output signal has a width determined by a first edge of the initiation signal and a first edge of the termination signal.