Personal on-demand audio entertainment device that is untethered and allows wireless download of content

• US 20020040255A1
• Filed: 10/03/2001
• Published: 04/04/2002
• Est. Priority Date: 10/03/2000
• Status: Active Grant

• Current Assignee: FreeSystems Pte Ltd.
• Original Assignee: FreeSystems Pte Ltd.
• Inventors: Neoh, Chong Lim
• Granted Patent: US 6,728,585 B2
• Time in Patent Office: Days
• US Class Current: 700/94
• CPC Class Codes: H04R 1/1041 Mechanical or electronic switches, or control elements switches in general H01H
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 5/033 Headphones for stereophonic communication details thereof, e.g. relating to batteries, cables or control elements H04R1/10

Abstract

Described is a personal on-demand audio entertainment system with a base unit attached to a personal computer or other source, a headphone unit and a remote control unit. The base unit transmits digital audio content to the headphone unit using infrared, radio frequency, magnetic or electromagnetic coupling. These data are stored in solid-state memory within the headphone unit. In the headphone unit, the stored digital audio content is converted to analog audio signals, amplified and sent to transducers for conversion to audio signal for the listener during playback. The system is designed such that playback may occur during the downloading process. The remote control unit also uses infrared, radio frequency, magnetic or electromagnetic coupling for communication to the headphone unit. This communication is made using a different channel and does not interfere with the audio data downloading. The remote control unit has a display and allows for control of player functions and modification of audio characteristics such as volume, bass, treble, balance, etc.

Claims

1. A personal on-demand audio entertainment device comprising:

a base transmitter unit connected to a digital audio signal source;

a remote control unit comprising;

a display;

a plurality of controls; and

a control transmitter to transmit control signals; and

a headphone unit comprising;

a first receiver for wireless downloading of said digital audio signals from said base transmitter;

a storage device for storing said digital audio signals;

a decoder for converting said stored digital audio signals into analog audio signals;

an amplifier to increase the amplitude of said analog audio signals;

a transducer for converting said analog audio signals into sound waves during audio playback;

a second receiver for wireless reception of said control signals from said remote control unit; and

a control circuit to interpret said control signals providing control of said playback.

2. The device according to claim 1 wherein said controls on said remote control unit are selected from the group consisting of volume, bass, treble, fast forward, reverse, skip, repeat, song title search, battery life, number of songs stored, elapsed time and on/off.

3. The device according to claim 1 wherein said downloading of said digital audio signals from said base transmitter may occur simultaneously with said audio playback.

4. The device according to claim 1 wherein said downloading of said digital audio signals from said base transmitter may occur simultaneously while said headphones are receiving said control signals.

5. The device according to claim 1 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using infrared transmission.

6. The device according to claim 1 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using radio frequency transmission.

7. The device according to claim 1 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using electromagnetic coupling.

8. The device according to claim 1 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using magnetic coupling.

9. The device according to claim 1 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using infrared transmission.

10. The device according to claim 1 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using radio frequency transmission.

11. The device according to claim 1 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using electromagnetic transmission.

12. The device according to claim 1 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using magnetic coupling.

14. The device according to claim 13 wherein said controls on said remote control unit are selected from the group consisting of volume, bass, treble, fast forward, reverse, skip, repeat, song title search, battery life, number of songs stored, elapsed time and on/off.

15. The device according to claim 13 wherein said downloading of said digital audio signals from said base transmitter may occur simultaneously while said headphones are receiving said control signals.

16. The device according to claim 13 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using infrared transmission.

17. The device according to claim 13 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using radio frequency transmission.

18. The device according to claim 13 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using electromagnetic transmission.

19. The device according to claim 13 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using magnetic coupling.

20. The device according to claim 13 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using infrared transmission.

21. The device according to claim 13 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using radio frequency transmission.

22. The device according to claim 13 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using electromagnetic transmission.

23. The device according to claim 13 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using magnetic coupling.

25. The device according to claim 24 wherein said controls on said remote control unit are selected from the group consisting of volume, bass, treble, fast forward, reverse, skip, repeat, song title search, battery life, number of songs stored, elapsed time and on/off.

26. The device according to claim 24 wherein said downloading of said digital audio signals from said base transmitter may occur simultaneously while said headphones are receiving said control signals.

27. The device according to claim 24 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using infrared transmission.

28. The device according to claim 24 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using radio frequency transmission.

29. The device according to claim 24 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using electromagnetic transmission.

30. The device according to claim 24 wherein said downloading of said digital audio signals from said base transmitter to said headphones is accomplished using magnetic coupling.

31. The device according to claim 24 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using infrared transmission.

32. The device according to claim 24 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using radio frequency transmission.

33. The device according to claim 24 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using electromagnetic transmission.

34. The device according to claim 24 wherein said transmission of said control signals from said remote control unit to said headphones is accomplished using magnetic coupling.

13. A personal on-demand audio entertainment device comprising:

a base transmitter unit connected to a digital audio signal source;

a remote control unit comprising;

a display;

a plurality of controls; and

a control transmitter to transmit control signals; and

a headphone unit comprising;

a first receiver for downloading of said digital audio signals from said base transmitter;

a storage device for storing said digital audio signals;

a decoder for converting said stored digital audio signals into analog audio signals;

an amplifier to increase the amplitude of said analog audio signals;

a transducer for converting said analog audio signals into sound waves during audio playback wherein said downloading of said digital audio signals from said base transmitter may occur simultaneously with said audio playback;

a second receiver for receiving said control signals from said remote control unit; and

a control circuit to interpret said control signals providing control of said playback.

24. A personal on-demand audio entertainment device comprising:

a base transmitter unit connected to a digital audio signal source;

a remote control unit comprising;

a display;

a plurality of controls; and

a control transmitter to transmit control signals; and

a headphone unit comprising;

a first receiver for downloading of said digital audio signals from said base transmitter;

a storage device for storing said digital audio signals;

a decoder for converting said stored digital audio signals into analog audio signals;

an amplifier to increase the amplitude of said analog audio signals;

a transducer for converting said analog audio signals into sound waves during audio playback wherein said downloading of said digital audio signals from said base transmitter may occur simultaneously with said audio playback;

a second receiver for receiving said control signals from said remote control unit wherein said downloading of said digital audio signals from said base transmitter may occur simultaneously while said headphones are receiving said control signals; and

a control circuit to interpret said control signals providing control of said playback.