Abstract: Systems and methods are described for transmitting data over physical channels to provide a high bandwidth, low latency interface between integrated circuit chips with low power utilization. Communication is performed using group signaling over multiple wires using a vector signaling code, where each wire carries a low-swing signal that may take on more than two signal values.

Abstract: Vector signaling code communications systems rely on group transmission of code symbols using multiple signaling channels that may have differing propagation characteristics, resulting in differing received signal levels, waveforms, and symbol arrival times, and thus that should be actively monitored and adjusted to minimize differential signal characteristics. Information obtained during symbol decode may be analyzed to identify channel operational characteristics during normal operation and perform non-disruptive channel adjustments, including per-channel adjustment of sample-and-hold timing to realign code symbol groups. Initialization or start-up adjustment may also be performed using intentionally-transmitted training patterns.

Abstract: Digital information is communicated between stacked integrated circuit devices by inductive coupling between arrays of inductors formed from integrated circuit wiring layers. This can be done using a combination of push-pull drivers, common inductor return legs, and balanced sparse ternary encoding. Embodiments result in low power utilization and high pin efficiency.

Abstract: Systems and circuits are described for transmitting data over physical channels to provide a fault tolerant, high speed, low latency interface such as between a memory controller and memory devices. Communications signals are communicated over interconnection groups comprised of multiple wires, with the described encoding and decoding permitting continued communication in the presence of a wire failure within an interconnection group. An efficient distributable voltage regulator to provide communications driver power is also disclosed.

Abstract: An efficient regulated power supply for a communications interface is disclosed using a data-dependent charge pump design. Data patterns known to produce increased power supply load concurrently raise power supply source current, leading to significant overall power savings for the combined communications driver and regulator over known switched and linear regulator solutions.

Abstract: Systems and methods are described for transmitting data over physical channels to provide a high bandwidth, low latency interface between integrated circuit chips with low power utilization. Communication is performed using group signaling over multiple wires using a vector signaling code, where each wire carries a low-swing signal that may take on more than two signal values.

Abstract: Systems and methods are described for transmitting data over physical channels to provide a high bandwidth, low latency interface between integrated circuit chips with low power utilization. Communication is performed using group signaling over multiple wires using a vector signaling code, where each wire carries a low-swing signal that may take on more than two signal values.

Abstract: The invention provides methods for characterizing the condition or status of a tissue or organ in a multicellular organism, e.g., an animal, by combining a plurality of clinical measures are combined into a composite clinical score (CCS) and using such a CCS to represent the condition or status of the tissue or organ. The invention provides methods for predicting the condition or status of a tissue or organ in a multicellular organism, e.g., an animal, based on measurements of a set of cellular constituent markers, e.g., measured expression levels of a set of marker genes. The invention also provides methods for selecting the set of marker genes whose expression levels can be used in determining the CCS.