Electronic systems and methods for integrated, automatic, medium-quality audio
US9213761B1 · kind B1 · utility
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4References
20Claims
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Key dates
| Filing date | Jun 3, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jul 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor device includes a single substrate including circuitry to implement a processor, a memory coupled to the processor, an audio interface module configured to provide data in pulse-code modulation (PCM) format having a first signal to noise ratio (SNR), and a medium quality speaker module configured to receive the PCM data, convert the data from the PCM format to a pulse-width modulation (PWM) format independently of the processor, and provide the data in the PWM format having a second SNR to at least one general purpose input-output pin on the substrate, the first SNR is greater than the second SNR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.