Personne

Mohammad Amin Shokrollahi

Publications associées (149)

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Differential vector storage for dynamic random access memory

Mohammad Amin Shokrollahi, Harm Cronie

A storage device stores data in groups of memory cells using vectors corresponding to voltage code codewords, each codeword having k entries. Entries have values selected from a set of at least three entry values and 2.sup.n distinct inputs can be encoded ...

2016

Data can be encoded by assigning source symbols to base blocks, assigning base blocks to source blocks and encoding each source block into encoding symbols, where at least one pair of source blocks is such they have at least one base block in common with b ...

2016

Low EMI signaling for parallel conductor interfaces

Mohammad Amin Shokrollahi, Nicolae Chiurtu

Methods are disclosed for creation of vector signaling codes having reduced or minimized electromagnetic emissions when transmitted over multiple conductor communications media such as microstrip channels. Particular code formulation constraints are shown ...

2016

Method and apparatus for low power chip-to-chip communications with constrained ISI ratio

Mohammad Amin Shokrollahi, Ali Hormati

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 herei ...

2016

Methods and apparatus employing FEC codes with permanent inactivation of symbols for encoding and decoding processes

Mohammad Amin Shokrollahi, Lorenz Minder

Encoding of a plurality of encoded symbols is provided wherein an encoded symbol is generated from a combination of a first symbol generated from a first set of intermediate symbols and a second symbol generated from a second set of intermediate symbols, e ...

2016

Methods and systems for energy-efficient communications interface

Mohammad Amin Shokrollahi

In a high-impedance communications interface, driver energy consumption is proportional to the number of signal transitions. For signals having three or more distinct levels, it is possible for a signal driver to salvage energy from some downward signal tr ...

2016

Methods and systems for pin-efficient memory controller interface using vector signaling codes for chip-to-chip communications

Mohammad Amin Shokrollahi, Anant Pratap Singh

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. Controller-side and memory-side embodiments of such channel interfaces are ...

2016

Methods and systems for skew tolerance in and advanced detectors for vector signaling codes for chip-to-chip communication

Mohammad Amin Shokrollahi, Anant Pratap Singh

Advanced detectors for vector signaling codes are disclosed which utilize multi-input comparators, generalized on-level slicing, reference generation based on maximum swing, and reference generation based on recent values. Vector signaling codes communicat ...

2016

Multi-drop communications channels can have significantly deep notches in their frequency response causing a corresponding limitation of the effective data transmission rate. A special time-ordered coding method is described which results in the emitted sp ...

2016

Orthogonal differential vector signaling codes are described which support encoded sub-channels allowing transport of distinct but temporally aligned data and clocking signals over the same transport medium. Embodiments providing enhanced LPDDR interfaces ...

2016