Information processing system with power saving audio state

Details Information processing system with power saving audio state Information processing system with power saving audio state

1998-08-24

2000-09-12

Etienne, Ario

Electrical computers and digital processing systems: support

Computer power control

Power conservation

713300, 713324, 327356, G06F 132, G06F 126

Patent

active

061192392

ABSTRACT:
An information processing apparatus with which power saving is enabled for the sound function in accordance with the activities of individual peripheral devices that output audio signals. A check is performed to determine whether or not the individual peripheral devices for outputting audio signals are in the muted state, and the mixer circuit is attenuated only when all the devices are in the muted state. The unused state of the sound function of the information processing apparatus is precisely detected, and power consumption can be reduced when the sound function is not in use. In addition, the "power control flag" in the I/O register of the audio controller is monitored, as well as the muted states of the individual peripheral devices. Therefore, even when the system software (e.g., a device driver for operating the audio controller) erroneously sets the power control flag during the reception of audio signals from a peripheral device, or when the playing of music is initiated by an audio function device, such as a CD-ROM drive, while the power control flag is set, the mixer circuit can be precisely re-enabled.

REFERENCES:
patent: 3823399 (1974-07-01), Yamanaka
patent: 5881317 (1999-03-01), Hampsten et al.

Affiliated with

Also associated with

Rating

Information processing system with power saving audio state does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information processing system with power saving audio state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information processing system with power saving audio state will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-106092