Integrated audio amplification circuit with multi-functional external terminals
US9787267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2016 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | May 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/03
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates in one aspect to an audio amplification circuit comprising an input terminal for receipt of an input signal from a transducer. A signal processor is operatively coupled to the input terminal for receipt and processing of the input signal to generate a processed digital audio signal in accordance with a programmable configuration setting of the signal processor. A serial data transmission interface is configured for receipt of the processed digital audio signal and supply of a corresponding digital audio stream at an output terminal of the integrated audio amplification circuit. A serial data receipt interface is operatively coupled to an externally accessible configuration terminal of the integrated audio amplification circuit and a controller is configured to adjust one of the programmable configuration setting of the signal processor and a format of a digital audio stream in accordance with first configuration data received through the serial data receipt interface. The controller is in a first state is responsive to a logic state of the externally accessible configuration terminal to control the format of the digital audio stream or the programmable…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.