Filter system and method of designing a convolutional filter
US-2025055445-A1 · Feb 13, 2025 · US
Parallel digital filtering of an audio channel
US9075697B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9075697-B2 |
| Application number | US-201213602032-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 31, 2012 |
| Priority date | Aug 31, 2012 |
| Publication date | Jul 7, 2015 |
| Grant date | Jul 7, 2015 |
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Abstract
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An electronic audio apparatus is described that uses a digital audio filter in which a splitter separates an input frame of discrete time audio into different time interval portions. Separate digital filter blocks then operate in parallel upon those time interval portions, respectively. A combiner merges the filtered portions into a single audio channel signal. Other embodiments are also described and claimed.
First claim
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What is claimed is: 1. A method for filtering an audio signal, comprising: receiving a frame of discrete time audio in a single audio channel; time-splitting the frame into a first time interval portion and a second time interval portion; digital filtering in parallel the first and second time interval portions, wherein said digital filtering comprises passing the first and second portions through separate first and second IIR filters, respectively; and combining the filtere…
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- H03H17/0283Primary
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9075697B2 cover?
- An electronic audio apparatus is described that uses a digital audio filter in which a splitter separates an input frame of discrete time audio into different time interval portions. Separate digital filter blocks then operate in parallel upon those time interval portions, respectively. A combiner merges the filtered portions into a single audio channel signal. Other embodiments are also descri…
- Who is the assignee on this patent?
- Powell Richard M, Lindahl Aram M, Apple Inc
- What technology area does this patent fall under?
- Primary CPC classification H03H17/0283. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).