Digital signal routing circuit
US9774951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2015 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Sep 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit for digital signal routing. The integrated circuit has analog and digital inputs and outputs, including digital interfaces for connection to other integrated circuits. Inputs, including the digital interfaces, act as data sources. Outputs, including the digital interfaces, act as data destinations. The integrated circuit also includes signal processing blocks, which can act as data sources and data destinations. Signal routing is achieved by means of a multiply-accumulate block, which takes data from one or more data source and, after any required scaling, generates output data for a data destination. Data from a data source is buffered for an entire period of a data sample clock so that the multiply-accumulate block can retrieve the data at any point in the period, and output data of the multiply-accumulate block is buffered for an entire period of the data sample clock so that the data destination can retrieve the data at any point in the period. Multiple signal paths can be defined by configuration data supplied to the device, either by a user, or by software. The multiply-accumulate block operates on a time division multiplexed basis, so that multiple sign…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.