1.5B Apple Devices Infringed Caltech Patents, Jury Told

By Craig Clough (January 15, 2020, 11:17 PM EST) -- Apple Inc. and Broadcom Ltd. infringed several California Institute of Technology patents with Wi-Fi chips installed in roughly 1.5 billion iPhone, iPad and MacBook devices sold over the last decade, the university's attorney told a California federal jury as the trial got underway Wednesday.

The Pasadena, California-based private research institution owns three patents on the technology for irregular repeat-accumulate codes implemented in so-called low-density parity check codes, which allow for faster data transmission over Wi-Fi networks.

Apple and Broadcom have been infringing the patents since Apple decided it wanted its devices to operate on LDPC coding in 2009, and the only way...

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