Portable sound reproducing system and method

• US 20070112448A1
• Filed: 12/29/2006
• Published: 05/17/2007
• Est. Priority Date: 11/24/1997
• Status: Active Grant

• Current Assignee: iRiver Limited
• Original Assignee: Texas MP3 Technologies Limited
• Inventors: Hwang, Jung-ha, Moon, Kwang-su
• Granted Patent: US 8,214,064 B2
• Time in Patent Office: Days
• US Class Current: 700/94
• CPC Class Codes: G06T 9/007 Transform coding, e.g. discrete cosine transform
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 2020/00014 the compressed signal being an audio signal
• CPC Class Codes: G11B 2020/00057 MPEG-1 or MPEG-2 audio layer III [MP3]
• CPC Class Codes: G11B 2020/10546 specifically adapted for audio data
• CPC Class Codes: G11B 2220/61 wherein solid state memory is used for storing A/V content storing computer data in solid state memories G06F
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11C 2207/16 Solid state audio deprecated, only for historical reasons, G06F3/16, G11B
• CPC Class Codes: G11C 5/141 Battery and back-up supplies
• CPC Class Codes: G11C 7/1006 Data managing, e.g. manipulating data before writing or reading out, data bus switches or control circuits therefor
• CPC Class Codes: G11C 7/16 Storage of analogue signals in digital stores using an arrangement comprising analogue/digital [A/D] converters, digital memories and digital/analogue [D/A] converters

Abstract

A portable audio device suitable for reproducing MPEG encoded data includes a plurality of inputs, one or more memory chips, a display, an audio output, one or more processors, and a battery. The plurality of inputs includes a forward input, a reverse input, and a play control input. The one or more memory chips store compressed digitized audio data. The one or more processors are responsive to selection of at least one of the plurality of inputs to reproduce select rows of compressed digitized audio data stored in the data in an audio format and to provide information to the display.

Claims

1. A handheld portable audio device for reproducing MPEG encoded audio data, the handheld portable audio device comprising:

a plurality of inputs, including a forward input, a reverse input, and a play control input;

one or more memory chips to store multiple selections of compressed digitized audio data;

a display;

one or more processors to reproduce the multiple selections of compressed digitized audio data in an audible format and to provide information to the display;

a re-chargeable battery;

an output receptive to headphones;

wherein the multiple selections of compressed digitized audio data are compressed according to a Moving Pictures Expert Group (MPEG) compression standard;

wherein, when a selection of compressed digitized audio data is being reproduced, the display provides the selection'"'"'s title;

wherein, when the selection of compressed digitized audio data is being reproduced, selection of the forward input for a first amount of time will cause the one or more processors to reproduce another selection of compressed digitized audio data;

wherein, when the selection of compressed digitized audio data is being reproduced, selection of the reverse input for a second amount of time will cause the one or more processors to begin reproducing the selection of compressed digitized audio data from its beginning;

wherein, when the selection of compressed digitized audio data is being reproduced, selection of the play control input will cause the one or more processors to stop reproducing the selection of compressed digitized audio data;

wherein, when no selection of compressed digitized audio data is being reproduced, selection of the play control input will cause the one or more processors to begin playing the selection of compressed digitized audio data; and

wherein, when the power level of the re-chargeable battery falls below a selected level, the display provides an indication relating to the power level.

2. The handheld portable audio device of claim 1, wherein:

when the selection of compressed digitized audio data is being reproduced, selection of the forward input for a third amount of time will cause the one or more processors to reproduce the selection of compressed digitized audio data at a rapid speed; and

when the selection of compressed digitized audio data is being reproduced, selection of the reverse input for a fourth amount of time will cause the one or more processors to begin advancing toward the beginning of the selection of compressed digitized audio data.

3. The handheld portable audio device of claim 2, further comprising a plurality of buttons, including:

a reverse button, wherein the reverse input is selected when the reverse button is depressed;

a forward button, wherein the forward input is selected when the forward button is depressed; and

a play/stop button, wherein the play control input is selected when the play/stop button is depressed.

4. The handheld portable audio device of claim 2, wherein the first time is less than the third time, and the second time is less than the fourth time.

5. The handheld portable audio device of claim 2, wherein the first and second times are less than approximately 1 second and the second and fourth times are greater than approximately 1 second.

6. The handheld portable audio device of claim 1, wherein selecting the play control input for an extended period turns the handheld portable audio device off.

7. The handheld portable audio device of claim 1, wherein the plurality of inputs includes a random input and wherein, in response to selection of the random input, the one or more processors reproduces the multiple selections of compressed digitized audio data in a random order.

8. The handheld portable audio device of claim 1, wherein the one or more processors includes at least a first processor and a second processor.

9. The handheld portable audio device of claim 8, wherein the first processor is responsive to the plurality of inputs and the second processor reproduces the multiple selections of compressed digitized audio data.

10. The handheld portable audio device of claim 8, wherein the first processor functions as a CPU and the second processor functions as a DSP.

11. The handheld portable audio device of claim 1, further comprising a transmitter/receiver to receive compressed digital sound data from a personal computer.

12. The handheld portable audio device of claim 1, further comprising a transmitter/receiver to receive compressed digital audio data from a telecommunications network.

13. The handheld portable audio device of claim 1, wherein the handheld portable audio device is thinner than a portable CD player.

14. The handheld portable audio device of claim 1, wherein the handheld portable audio device is sized to fit in an average person'"'"'s pocket.

28. The handheld portable audio device of claim 13, wherein the receiver is capable of receiving additional selections of music for storage on the one or more memory chips from a telecommunications network.

29. The handheld portable audio device of claim 28, wherein the telecommunications network is a wireless network.

15. A handheld portable audio device for reproducing selections of music stored as MPEG encoded data on one or more memory chips, the handheld portable audio device comprising:

a forward input, a reverse input, and a play control input;

one or more memory chips for storing a plurality of selections of music and titles of the selections of music, wherein the selections of music include digitized audio data compressed according to a Moving Pictures Expert Group (MPEG) compression standard;

a re-chargeable battery;

a display;

one or more processors to convert the selections of music from digitized audio data to an audible format;

a receiver capable of receiving additional selections of music for storage on the one or more memory chips;

an output receptive to a headphone;

wherein, when a selection of music is being reproduced, the display provides the selection'"'"'s title;

wherein, when the selection of music is being reproduced, selection of the forward input for a first amount of time will cause the one or more processors to reproduce another selection of music;

wherein, when the selection of music is being reproduced, selection of the reverse input for a second amount of time will cause the one or more processors to begin reproducing the selection of music from its beginning;

wherein, when the selection of music is being reproduced, selection of the play control input will cause the one or more processors to stop reproducing the selection of music; and

wherein, when no selection of music is being reproduced, selection of the play control input will cause the one or more processors to begin playing the selection of music.

16. The handheld portable audio device of claim 15, wherein the handheld portable audio device is thinner than a portable CD player.

17. The handheld portable audio device of claim 15, wherein:

when the selection of music is being reproduced, selection of the forward input for a third amount of time will cause the one or more processors to reproduce the selection of music at a rapid speed; and

when the selection of music is being reproduced, selection of the reverse input for a fourth amount of time will cause the one or more processors to begin advancing toward the beginning of the selection of music.

18. The handheld portable audio device of claim 17, further comprising a plurality of buttons, including:

a reverse button, wherein the reverse input is selected when the reverse button is depressed;

a forward button, wherein the forward input is selected when the forward button is depressed; and

a play/stop button, wherein the play control input is selected when the play/stop button is depressed.

19. The handheld portable audio device of claim 18, wherein the handheld portable audio device is thin and lightweight.

20. The handheld portable audio device of claim 19, wherein the first time is less than the third time, and the second time is less than the fourth time.

21. The handheld portable audio device of claim 19, wherein the first and second times are less than approximately 1 second and the third and fourth times are greater than approximately 1 second.

22. The handheld portable audio device of claim 15, wherein selecting the play control input for an extended period turns the handheld portable audio device off.

23. The handheld portable audio device of claim 16, further comprising a random input and wherein, in response to selection of the random input, the one or more processors reproduce the plurality of selections of music in a random order.

24. The handheld portable audio device of claim 23, wherein the one or more processors include at least a first processor and a second processor.

25. The handheld portable audio device of claim 24, wherein the first processor is responsive to the forward input, the reverse input, the play control input, and the random input, and the second processor converts the selections of music from digitized audio data to the audible format.

26. The handheld portable audio device of claim 24, wherein the first processor functions as a CPU and the second processor functions as a DSP.

27. The handheld portable audio device of claim 15, wherein the receiver is capable of receiving additional selections of music for storage on the one or more memory chips from a personal computer.

30. The handheld portable audio device of claim 15, wherein the display displays the power level of the re-chargeable battery.