1
Harm Cronie, Amin Shokrollahi, Armin Tajalli: Methods and systems for noise resilient, pin-efficient and low power communications with sparse signaling codes. École Polytechnique Fédérale de Lausanne, Robert J Irvine III, February 11, 2014: US08649445 (60 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 sparse signaling code, wherein a codeword is representable as a vector of a plurality of components, some of which are quie ...


2
Roger Ulrich: Multilevel driver for high speed chip-to-chip communications. KANDOU LABS, Invention Mine, January 10, 2017: US09544015 (15 worldwide citation)

Transmission line driver systems are described which are comprised of multiple paralleled driver elements. The paralleled structure allows efficient generation of multiple output signal levels with adjustable output amplitude, optionally including Finite Impulse Response signal shaping and skew pre- ...


3
Roger Ulrich: Multilevel driver for high speed chip-to-chip communications. KANDOU LABS, Invention Mine, March 13, 2018: US09917711 (1 worldwide citation)

Transmission line driver systems are described which are comprised of multiple paralleled driver elements. The paralleled structure allows efficient generation of multiple output signal levels with adjustable output amplitude, optionally including Finite Impulse Response signal shaping and skew pre- ...


4
Armin Tajalli, Harm Cronie, Amin Shokrollahi: Efficient processing and detection of balanced codes. KANDOU LABS, Invention Mine, February 21, 2017: US09577664 (1 worldwide citation)

Circuits that are matched to balanced codes may recover transmitted information in a noise resilient and power efficient manner. Circuit components for processing a balanced code may include one or more of: matched amplification of the signals representing the balanced code, matched equalization and ...


5
Armin Tajalli: Symmetric linear equalization circuit with increased gain. KANDOU LABS, Invention Mine, June 27, 2017: US09692381 (1 worldwide citation)

Circuits providing low noise amplification with continuous time linear equalization are described. An exemplary circuit includes four amplification elements, such as MOS transistors. The amplification elements are arranged in differential pairs, and the differential pairs are cross-coupled with a fr ...


6
Amin Shokrollahi, Roger Ulrich: Fault tolerant chip-to-chip communication with advanced voltage. KANDOU LABS, Invention Mine, February 7, 2017: US09564994 (1 worldwide citation)

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 ...


7
Amin Shokrollahi: Vector signaling with reduced receiver complexity. KANDOU LABS, Invention Mine, May 29, 2018: US09985745

Methods and apparatuses are described to determine subsets of vector signaling codes capable of detection by smaller sets of comparators than required to detect the full code. The resulting lower receiver complexity allows systems utilizing such subset codes to be less complex and require less power ...


8
Amin Shokrollahi: Vector signaling with reduced receiver complexity. Kandou Labs, Invention Mine, June 27, 2017: US09692555

Methods and apparatuses are described to determine subsets of vector signaling codes capable of detection by smaller sets of comparators than required to detect the full code. The resulting lower receiver complexity allows systems utilizing such subset codes to be less complex and require less power ...


9
Armin Tajalli: Lock detector for phase lock loop. KANDOU LABS, Invention Mine, February 27, 2018: US09906358

Methods and systems are described for generating, using a voltage-controlled oscillator (VCO), a plurality of phases of a local clock signal, generating a phase-error signal using a phase comparator receive a phase of the local clock signal and a reference clock signal, and configured to output the ...


10
Amin Shokrollahi, Roger Ulrich: Vector signaling codes with increased signal to noise characteristics. KANDOU LABS, Invention Mine, February 20, 2018: US09900186

Vector signaling codes are synergistically combined with multi-level signaling, the increased alphabet size provided by the multi-level signaling enabling a larger codeword space for a given number of symbols, at the cost of reduced receiver detection margin for each of the multiple signal levels. V ...