MPEG portable sound reproducing system and a reproducing method thereof
DCFirst Claim
1. A portable audio device suitable for reproducing MPEG encoded data, the portable audio device comprising:
- a plurality of inputs, including a forward input, a reverse input, a play control input, and a random input;
a non-removable data storage to store compressed digitized audio data;
a display;
an audio output;
at least one processor, responsive to selection of at least one of the plurality of inputs, to convert selected compressed digitized audio data stored in the non-removable data storage for reproduction by the audio output and to provide information to the display;
a battery; and
wherein, when a first selection of compressed digitized audio data is being reproduced, the display provides at least one of the first selection'"'"'s title, type, remaining playtime, and reproduction time;
wherein, when a second selection of compressed digitized audio data is being reproduced and in response to selection of the forward input for a first amount of time, the portable audio device advances to another selection of compressed digitized audio data;
wherein, when a third selection of compressed digitized audio data is being reproduced, in response to selection of the reverse input for a second amount of time, the portable audio device begins playing the third selection from a beginning of the third selection of compressed digitized audio data;
wherein, when a fourth selection of compressed digitized audio data is being reproduced, in response to selection of the play control input, the portable audio device stops playing the fourth selection of compressed digitized audio data;
wherein, in response to selection of the random input, the portable audio device reproduces selections of the compressed digitized audio data stored in the non-removable data storage in a random order; and
wherein, when the portable audio device is in a selected mode of operation and a voltage of the battery falls below a selected level, the display provides an indication relating to a power level of the battery.
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Litigations
0 Petitions
Reexamination
Accused Products
Abstract
Disclosed is an MPEG portable sound reproducing system and a method for reproducing sound data compressed using the MPEG method. The inventive system includes power supply means for supplying operational power to the system, the power supply means being realized through a secondary battery; power processing means for rectifying power supplied from the power supply means to stable voltage and current; information display means for displaying numbers and combinations of letters related to operational states of the system; control means for controlling all operations of converting and reproducing sound data compressed using the MPEG method; data storage means for storing MPEG-compressed sound data in a designated address according to signals output from the control means; information selecting means for selecting general operations to reproduce, download, and apply selected sound data stored in the data storage means; sound reproducing means for converting sound data stored in the data storage means into a format audible to users according to signals output from the control means; and transmitting/receiving means for transmitting and receiving sound data and program data from external devices.
83 Citations
30 Claims
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1. A portable audio device suitable for reproducing MPEG encoded data, the portable audio device comprising:
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a plurality of inputs, including a forward input, a reverse input, a play control input, and a random input; a non-removable data storage to store compressed digitized audio data; a display; an audio output; at least one processor, responsive to selection of at least one of the plurality of inputs, to convert selected compressed digitized audio data stored in the non-removable data storage for reproduction by the audio output and to provide information to the display; a battery; and wherein, when a first selection of compressed digitized audio data is being reproduced, the display provides at least one of the first selection'"'"'s title, type, remaining playtime, and reproduction time; wherein, when a second selection of compressed digitized audio data is being reproduced and in response to selection of the forward input for a first amount of time, the portable audio device advances to another selection of compressed digitized audio data; wherein, when a third selection of compressed digitized audio data is being reproduced, in response to selection of the reverse input for a second amount of time, the portable audio device begins playing the third selection from a beginning of the third selection of compressed digitized audio data; wherein, when a fourth selection of compressed digitized audio data is being reproduced, in response to selection of the play control input, the portable audio device stops playing the fourth selection of compressed digitized audio data; wherein, in response to selection of the random input, the portable audio device reproduces selections of the compressed digitized audio data stored in the non-removable data storage in a random order; and wherein, when the portable audio device is in a selected mode of operation and a voltage of the battery falls below a selected level, the display provides an indication relating to a power level of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A portable audio device suitable for reproducing MPEG encoded data, the portable audio device comprising:
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a plurality of inputs, including a forward input, a reverse input, a play control input, and a repeat input; a non-removable data storage to store compressed digitized audio data; a display; an audio output; at least one processor, responsive to selection of at least one of the plurality of inputs, to convert selected compressed digitized audio data stored in the non-removable data storage for reproduction by the audio output and to provide information to the display; a battery; and wherein, when a first selection of compressed digitized audio data is being reproduced, the display provides at least one of the first selection'"'"'s title, type, remaining playtime, and reproduction time; wherein, when a second selection of compressed digitized audio data is being reproduced and in response to selection of the forward input for a first amount of time, the portable audio device advances forward to another selection of compressed digitized audio data; wherein, when a third selection of compressed digitized audio data is being reproduced, in response to selection of the reverse input for a second amount of time, the portable audio device begins playing the third selection from a beginning of the third selection of compressed digitized audio data; wherein, when a fourth selection of compressed digitized audio data is being reproduced, in response to selection of the play control input, the portable audio device stops playing the fourth selection of compressed digitized audio data; wherein, in response to selection of the repeat input, the portable audio device reproduces at least one selection of the compressed digitized audio data stored in the non-removable data storage in a repetitive manner; and wherein, when the portable audio device is in a selected mode of operation and a voltage of the battery falls below a selected level, the display provides an indication relating to a power level of the battery. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification