公开(公告)号：US09820074B2

公开(公告)日：2017-11-14

申请号：US14777516

申请日：2014-03-14

Applicant: Apple Inc.

Inventor： Joshua Atkins ,  Adam Strauss

IPC: H04S7/00 ,  G06F3/06 ,  G06F17/15

CPC classification number: H04S7/30 ,  G06F3/0604 ,  G06F3/064 ,  G06F3/0659 ,  G06F3/0673 ,  G06F17/156 ,  H04S2400/03 ,  H04S2420/01 ,  H04S2420/07

Abstract: A processor can be associated with a memory for storing convolution data. A plurality of M filters from a corresponding plurality of M input channels to a selected one output channel can be provided, wherein each filter can be represented by a corresponding index, m. Each of the M filters can be partitioned into K respective filter partitions, wherein each respective filter partition can be represented by a corresponding index, k. A frequency-domain representation of each filter partition can be provided, wherein each frequency-domain representation of a filter partition comprises N frequency bins and a corresponding frequency-domain filter coefficient, wherein each respective frequency bin can be represented by a corresponding index, n. The memory can store such information in an arrangement suitable for the processor to concurrently receive sufficient information to concurrently convolve a frame of each input signal with the respective filters.