Portable computer with low-power audio CD-player
AssigneeCompaq Information Technologies Group, L.P.
InventorLee Atkinson
Life of this patent
Estimating the term…
Abstract
A system and method to reduce power. consumption in a portable computer system while allowing the CDROM drive to continue playing audio CDs. When the system enters a suspend mode, the status of the CDROM drive is checked, and if it is playing an audio CD, it remains powered, otherwise power to the CDROM drive, is also suspended. The system recognizes when the audio CD is finished playing and then places the CDROM drive into the suspend mode.
Claims18
A method for operating a portable computer system, comprising the steps of:
- receiving a command to place said system in a suspend mode;
- determining whether an audio CD is playing in a CDROM drive;
- if an audio CD is not playing, placing said system in a suspend mode;
- if an audio CD is playing, continuing to operate said CDROM drive, while placing the remainder of said system in a suspend mode.
A method for operating a portable computer system, comprising the steps of:
- receiving a command to place said system in a suspend mode;
- determining whether an audio CD is playing in a CDROM drive;
- if an audio CD is playing, then
- leaving said CDROM drive in its present state;
- isolating at least one of a plurality of CDROM control signals from other system signals;
- placing a digital section of an audio CODEC in a suspend mode;
- leaving an analog section of said audio CODEC in an active mode;
- and
- leaving at least one audio power amplifier in an active state;
- if an audio CD is not playing, then
- placing said CDROM drive in a suspend mode;
- placing said audio and digital sections of said CODEC in a suspend mode;
- placing said audio power amplifier in a suspend mode.
A portable computer system comprising:
- a microprocessor;
- a memory connected to said microprocessor;
- a display device connected to display data generated by said microprocessor;
- an audio controller connected to said microprocessor;
- an audio input device connected to said audio controller for reading audio data;
- a battery connected to power said microprocessor, memory, display device, audio controller, and audio input device;
- wherein said system may be placed in a suspend mode in which said microprocessor and display are placed reduced power state;
- and
- wherein said audio input device and said audio controller may be is selectably placed in a reduced power state when said system is in said suspend mode.
Dependencies are inferred from the claim text.