Loudspeaker control circuit

Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion

Reexamination Certificate

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Details

Other Related Categories

C381S111000

Type

Reexamination Certificate

Status

active

Patent number

07091893

Description

ABSTRACT:
A loudspeaker control circuit includes a bit splitter, a complement module and a digital-to-analog converter. The bit splitter divides a data item representing an acoustic signal into a high order bit group and a low order bit group. The complement module determines a complement of at least one of the high order bit group and the low order bit group. The complement module may be connected in series to the digital-to-analog converter. The digital-to-analog converter converts the high order bit group and the low order bit group from a digital format to an analog format.

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Amar Palacherla, “Using PWM to Generate Analog Output”, 4pp., Microchip Technology, Inc., 1997, no month.
Dennis Bohn, “Digital Dharma of Audio A/D Converters”, 10pp., RaneNote 137, Rane Corporation, 1997, no month.

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