Apparatus and method for audio computing
US5832438A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1995 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Feb 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G9/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A computer for handling audio signals includes, within one box, programmable digital processing circuitry, read/write memory, digital-to-analog circuitry, one or more speakers, and an equalization element for altering the frequency response of signals applied to the speaker. The equalization element can be used to boost low frequency signals sent to the speaker if the speaker has poor low frequency response. Preferably the computer also has headphone and line-out jacks to which it supplies un-equalized audio outputs. The computer's internal speaker can be driven by a bridge mode amplifier, and, to save space, the speaker's electro-magnetic transducer can be placed in the concave recess formed by its speaker cones. The computer can have two speakers to play stereo. Preferably the computer receives analog inputs, such as from a built-in CD-ROM drive, a mike-in jack, and a line-in jack, and uses an analog-to-digital converter to digitizes these signals so they can be digitally manipulated by the computer. The computer preferably has a devices for selectively supplying the analog output from its digital-to-analog circuitry to either its internal speaker, headphone jack, or line-out jac…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.