Apparatus and method of reproducing audio data using low power
First Claim
Patent Images
1. An apparatus for reproducing audio data, the apparatus comprising:
- a top system to transfer compressed audio data and comprise a central processing unit (CPU); and
a subsystem, distinct from the top system, to receive the compressed audio data, andwherein, the subsystem comprises;
an audio input buffer to store the compressed audio data;
an audio decoding unit to decode the compressed audio data;
an audio output buffer to store the decoded audio data;
a mode determining unit to determine a power mode of the top system between a first mode corresponding to the audio input buffer and a second mode corresponding to the audio output buffer based on a memory resource of the subsystem and an amount of a memory required for reproducing an audio data; and
a power controlling unit to control a power supplied to the top system based on at least one of an amount of audio data stored in the audio input buffer that is consumed and the amount of audio data stored in the audio output buffer that is consumed when the determined power mode corresponds to the second mode,wherein the mode determining unit adjusts a size of the audio input buffer and a size of the audio output buffer based on the determined power mode, andwherein when the determined power mode corresponds to the first mode, the mode determining unit adjusts the size of the audio input buffer to be greater than the size of the audio output buffer, and when the determined power mode corresponds to the second mode, the mode determining unit adjusts the size of the audio output buffer to be greater than the size of the audio input buffer.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for reproducing audio data using low power are provided. The apparatus may reproduce the audio data by determining a power mode based on a memory resource of an internal memory, and an amount of a memory required for reproducing the audio data, controlling a power based on the determined power mode, and decoding the audio data.
10 Citations
20 Claims
-
1. An apparatus for reproducing audio data, the apparatus comprising:
-
a top system to transfer compressed audio data and comprise a central processing unit (CPU); and a subsystem, distinct from the top system, to receive the compressed audio data, and wherein, the subsystem comprises; an audio input buffer to store the compressed audio data; an audio decoding unit to decode the compressed audio data; an audio output buffer to store the decoded audio data; a mode determining unit to determine a power mode of the top system between a first mode corresponding to the audio input buffer and a second mode corresponding to the audio output buffer based on a memory resource of the subsystem and an amount of a memory required for reproducing an audio data; and a power controlling unit to control a power supplied to the top system based on at least one of an amount of audio data stored in the audio input buffer that is consumed and the amount of audio data stored in the audio output buffer that is consumed when the determined power mode corresponds to the second mode, wherein the mode determining unit adjusts a size of the audio input buffer and a size of the audio output buffer based on the determined power mode, and wherein when the determined power mode corresponds to the first mode, the mode determining unit adjusts the size of the audio input buffer to be greater than the size of the audio output buffer, and when the determined power mode corresponds to the second mode, the mode determining unit adjusts the size of the audio output buffer to be greater than the size of the audio input buffer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of reproducing audio data, the method comprising:
-
receiving compressed audio data from a separately provided top system including a central processing unit (CPU), and storing the compressed audio data in an audio input buffer; decoding the compressed audio data using an audio decoding unit, and storing the decoded audio data in an audio output buffer; and determining a power mode of the compressed audio data top system between a first mode corresponding to the audio input buffer and a second mode corresponding to the audio output buffer based on a memory resource of subsystem and an amount of a memory required for reproducing an audio data, and; controlling a power supplied to the top system based on at least one of an amount of audio data stored in the audio input buffer that is consumed and the amount of audio data stored in the audio output buffer that is consumed when the determined power mode corresponds to the second mode, wherein the subsystem comprises the audio input buffer, the audio decoding unit, and the audio output buffer, and is distinct from the top system, wherein the determining comprises adjusting a size of the audio input buffer and a size of the audio output buffer based on the determined power mode, and wherein when the determined power mode corresponds to the first mode, the size of the audio input buffer is adjusted to be greater than the size of the audio output buffer, and when the determined power mode corresponds to the second mode, the size of the audio output buffer is adjusted to be greater than the size of the audio input buffer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification