Intel Corporation

Nandu J Marketkar

Thomas F Knight, Jr

Rajeevan Amirtharajah

John R Benham

Thomas D Simon

John Critchlow

Mark E Naylor

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.

Symbol-based signaling device for an electromagnetically-coupled bus system

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.

Electromagnetically-coupled bus system

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.

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.

Electromagnetic coupler flexible circuit with a curved coupling portion

An apparatus comprises a first device comprising a carrier having one or more conductive areas to form a portion of an electromagnetic coupler and a socket to mount the first device relative to a second device having one or more conductive areas to form the electromagnetic coupler. The socket defines a coupler region in which the carrier is inserted to align the carrier relative to the second device.

Electromagnetic coupler alignment

The present invention provides a mechanism for supporting high digital bandwidth in a multi-drop bus system. A first device of the system encodes multiple bits in a symbol and drives the encoded symbol onto the multi-drop bus. Multiple receiving devices are linked to the bus through electromagnetic couplers. A receiving device samples the encoded symbol through the electromagnetic coupler and recovers the encoded bits from the sampled symbol.

Symbol-based signaling for an electromagnetically-coupled bus system

Electromagnetic coupler circuit board having at least one angled conductive trace

A device comprises a component having circuitry, a carrier comprising one or more conductive areas to form a portion of an electromagnetic coupler, and a clamp to secure the carrier to the device.

Clamp to secure carrier to device for electromagnetic coupler

Electromagnetic coupler

An apparatus comprises a first device having one or more conductive areas to form a portion of an electromagnetic coupler and a socket to mount the first device relative to a second device having one or more conductive areas to form the electromagnetic coupler.

Electromagnetic coupler socket

A first device has a first conductive area. A second device has a second conductive area. An electromagnetic coupler is formed by a dielectric between the first conductive area and the second conductive area that is separable at a dielectric interface between the first conductive area and the second conductive area.

Interconnect mechanics for electromagnetic coupler

A high-speed digital distribution system is presented that includes a transmission line bus that carries modulated digital signals and reference signals. The transmission line bus has a first end electrically connected to a bus interface that modulates digital data onto said transmission line bus and demodulates modulated digital data signals that it receives from the transmission line bus. The bus interface can transmit and receive a reference signal. At least one digital component interface is in electromagnetic communication with the transmission line bus, and each digital component interface can also modulate digital data onto the transmission line bus and can demodulate modulated digital data signals received from the transmission line bus, and can transmit and receive a reference signal. The transmission line bus communicates modulated digital data in association with the reference signal between and among an external device connected to the bus interface and the at least one digital component interface. In one embodiment, the digital data is quadrature amplitude modulated with an encoding that uses one to five bits for the phase component and zero to three bits for the amplitude component. In another embodiment the transmission line bus has characteristic impedance and has matched terminations at its first and second ends.

Growing community of inventors

Boylston, MA, United States of America

Nandu J Marketkar