MIT spin-out Lyric Semiconductor launches new kind of computing with probability processing circuits

SANTA CLARA & AUSTIN, USA: Lyric Semiconductor, Inc. a DARPA- and venture-funded MIT spin-out, has emerged from stealth mode to launch a new technology called probability processing, which is poised to deliver a fundamental change in processing performance and power consumption.

With over a decade of development at MIT and at Lyric Semiconductor, Lyric's probability processing technology calculates in a completely new way, enabling orders-of-magnitude improvement in processor efficiency. Lyric Error Correction (LEC) for flash memory, the first commercial application of probability processing, offers a 30X reduction in die size and a 12X improvement in power consumption all at higher throughput compared to today's digital solutions.

Lyric Semiconductor has developed an alternative to digital computing. The company is redesigning processing circuits from the ground up to natively process probabilities -- from the gate circuits to the processor architecture to the programming language. As a result, many applications that today require a thousand conventional processors will soon run in just one Lyric processor, providing 1,000X efficiencies in cost, power, and size.

For over 60 years, computers have been based on digital computing principles. Data is represented as bits (1s and 0s). Boolean logic gates perform operations on these bits. Lyric has invented a new kind of logic gate circuit that uses transistors as dimmer switches instead of as on/off switches. These circuits can accept inputs and calculate outputs that are between 0 and 1, directly representing probabilities -- levels of certainty.

A digital processor steps through these operations serially in order to perform a function. In order to improve efficiency even further, Lyric's processors are designed to perform many probability computations in parallel.

Lyric's approach can accelerate search, fraud detection, spam filtering, financial modeling, genome sequence analysis, and many other important present and future applications that involve simultaneously considering many possible alternatives and deciding on the best fit -- the best guess for the answer.

In theory, digital processors can perform these calculations, but in practice, they do so very inefficiently. As a result, a huge amount of processing overhead is required, costing an enormous amount of space, power and money.

"After a decade of development, we have no shortage of opportunities for our probability processing technology, but we are currently focused on a modest list of both short and long-term applications that will see enormous gains in performance," says Lyric Semiconductor CEO and co-founder Ben Vigoda.

"We are starting with Lyric Error Correction but ultimately plan to develop a more general purpose probability processor that will truly change the landscape for many applications."