1
Amir Keyvan Khandani: Wireless transmission with channel state perturbation. Invention Mine, April 14, 2015: US09008208 (107 worldwide citation)

Generating a channel codebook by identifying a subset of antenna configurations from a plurality of antenna configurations of an antenna associated with a transmitter by: transmitting a sequence of symbols from the transmitter to a receiver using the plurality of antenna configurations, wherein each ...


2
Brian Holden, Amin Shokrollahi: Methods and systems for selection of unions of vector signaling codes for power and pin efficient chip-to-chip communication. KANDOU LABS, Invention Mine, July 7, 2015: US09077386 (63 worldwide citation)

Methods and systems are described for communication of data over a communications bus at high speed and high pin efficiency, with good resilience to common mode and other noise. Pin efficiencies of 100% may be achieved even for bus widths of four or fewer wires. Information to be transmitted is enco ...


3
Brian Holden, Amin Shokrollahi: Crossbar switch decoder for vector signaling codes. Kandou Labs, Invention Mine, Robert J Irvine III, March 24, 2015: US08989317 (59 worldwide citation)

An efficient decoding of vector signaling codes is obtained using a circuit that ranks received signal levels, designates ranked values as representing particular code elements, and translates those particular code elements into a decoded result. An optimized ranking circuit combines analog crossbar ...


4
Ali Hormati, Amin Shokrollahi, Roger Ulrich: Method for code evaluation using ISI ratio. KANDOU LABS, Invention Mine, August 4, 2015: US09100232 (57 worldwide citation)

An efficient communications apparatus is described for a vector signaling code to transport data and optionally a clocking signal between integrated circuit devices. Methods of designing such apparatus and their associated codes based on a new metric herein called the “ISI Ratio” are described which ...


5
John Fox, Brian Holden, Peter Hunt, John D Keay, Amin Shokrollahi, Andrew Kevin John Stewart, Giuseppe Surace, Roger Ulrich, Richard Simpson: Methods and systems for high bandwidth chip-to-chip communications interface. Kandou Labs, Invention Mine, June 7, 2016: US09362974 (42 worldwide citation)

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 eac ...


6
Harm Cronie: Multiply accumulate operations in the analog domain. KANDOU LABS, Invention Mine LCC, June 30, 2015: US09069995 (41 worldwide citation)

Fixed capacitive circuits are described which perform arithmetical summation operations over sets of scaled analog values, where the constant parameters of the summations and scaling multiplications are formed as ratios of circuit element values. The passive nature of the design can enable efficient ...


7
Christoph Walter: Multiwire linear equalizer for vector signaling code receiver. KANDOU LABS, Invention Mine, August 11, 2015: US09106465 (31 worldwide citation)

Continuous-time linear equalization of received signals on multiple wire channels while maintaining accurate common mode signal values. Multiwire group signaling using vector signaling codes simultaneously transmits encoded values on multiple wires, requiring multiple receive signals to be sampled s ...


8
Harm Cronie, Amin Shokrollahi: Power and pin efficient chip-to-chip communications with common-mode rejection and SSO resilience. École Polytechnique Fédérale de Lausanne, Invention Mine, April 21, 2015: US09015566 (28 worldwide citation)

In bus communications methods and apparatus, a first set of physical signals representing the information to be conveyed over the bus is provided, and mapped to a codeword of a spherical code, wherein a codeword is representable as a vector of a plurality of components and the bus uses at least as m ...


9
John Fox, Brian Holden, Peter Hunt, John D Keay, Amin Shokrollahi, Richard Simpson, Anant Singh, Andrew Kevin John Stewart, Giuseppe Surace: Methods and systems for chip-to-chip communication with reduced simultaneous switching noise. KANDOU LABS, Invention Mine, September 1, 2015: US09124557 (27 worldwide citation)

Systems and methods are described for transmitting data over physical channels to provide a high speed, low latency interface such as between a memory controller and memory devices with significantly reduced or eliminated Simultaneous Switching Output noise. Controller-side and memory-side embodimen ...


10
Harm Cronie, Amin Shokrollahi: Orthogonal differential vector signaling. ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, Invention Mine, March 15, 2016: US09288089 (22 worldwide citation)

Using a transformation based at least in part on a non-simple orthogonal or unitary matrix, data may be transmitted over a data bus in a manner that is resilient to one or more types of signal noise, that does not require a common reference at the transmission and acquisition points, and/or that has ...