Audio device

• US 20050063556A1
• Filed: 09/23/2003
• Published: 03/24/2005
• Est. Priority Date: 09/23/2003
• Status: Abandoned Application

• Current Assignee: Little Tikes Company The
• Original Assignee: Little Tikes Company The
• Inventors: Hui, Chi Kong (Stanley), Smith, Steve, McEachen, Peter C., Keller, Mike, Kanoza, Jason
• Application Number:
  US10/669,513
• Publication Number:
  US 20050063556A1
• Time in Patent Office: Days
• US Class Current: 381/104
• CPC Class Codes: H03G 3/30 in amplifiers having semiconductor devices
• CPC Class Codes: H03G 3/301 the gain being continuously variable
• CPC Class Codes: H04S 7/302 Electronic adaptation of stereophonic sound system to listener position or orientation H04S7/301 takes precedence

Abstract

An audio device having a primary audio purpose of producing a programmed audio output for a listener. The audio device comprises sound-generating components that generate the programmed audio output, and these components include an emitter that audibly emits this programmed output at a playing volume. A proximity sensor senses the distance to the listener, and this sensed distance corresponds to the distance between the listener and the emitter. Volume-adjusting components adjust the playing volume to prevent it from being at an unacceptable level for the sensed distance.

Claims

1. An audio device having a primary audio purpose of producing a programmed audio output for a listener, said device comprising:

sound-generating components that generate the programmed audio output and include an emitter that audibly emits the programmed output at a playing volume;

a proximity sensor that senses a distance between it and the listener, this sensed distance corresponding to a distance between the listener and the emitter; and

volume-adjusting components which adjust the playing volume to prevent it from being at an unacceptable level at the sensed distance.

2. An audio device as set forth in claim 1, wherein the playing volume remains in its adjusted condition until a reset is performed.

3. An audio device as set forth in claim 2, wherein the volume-adjusting components are configured to provide a delay between performance of the reset and initiation of the reset.

4. An audio device as set forth in claim 1, wherein the volume-adjusting components are configured to reduce the playing volume if the listener is within a certain range and if the playing volume is at an unacceptable level for this range.

5. An audio device as set forth in claim 4, wherein the volume-adjusting components are configured to reduce the playing volume to zero if the listener is within said certain range and if the playing volume is at an unacceptable level for this range.

6. An audio device as set forth in claim 5, wherein the reduction of volume to zero is accomplished by interrupting power to at least some of the sound generating components.

7. An audio device as set forth in claim 4, wherein the reduction of volume is accomplished by reducing the playing volume to a level greater than zero.

8. An audio device as set forth in claim 7, wherein the reduced playing volume is equal to or less than a threshold.

9. An audio device as set forth in claim 8, wherein the threshold corresponds to a pre-established safe volume level for said certain range.

10. An audio device as set forth in claim 1, wherein the volume-adjusting components are configured to increase the playing volume if the listener is outside a certain range and if the playing volume is unacceptably low for this range.

11. An audio device as set forth in claim 1, wherein the sound-generating components comprise a volume setter for setting a desired level for the playing volume and wherein the volume-adjusting components override the volume setter.

12. An audio device as set forth in claim 11, wherein the volume-adjusting components are configured to reduce the playing volume if the listener is within a certain range of the emitter and if the set playing volume is at an unacceptable level for this range, and wherein the playing volume returns to the set volume upon the listener moving outside the certain range.

13. An audio device as set forth in claim 1, wherein the volume-adjusting components adjust the playing volume to different levels when the listener is at different distances from the sound generator.

14. An audio device as set forth in claim 1, wherein there is a threshold A for a predetermined range A, and wherein, when the sensed distance is less than or equal to range A, the volume-adjusting components adjust the playing volume if necessary based upon a comparison with the threshold A.

15. An audio device as set forth in claim 14, wherein the volume-adjusting components reduce the playing volume when the playing volume exceeds the threshold A.

16. An audio device as set forth in claim 14, wherein the volume-adjusting components increase the playing volume when the playing volume is less than the threshold A.

17. An audio device as set forth in claim 16, wherein the volume-adjusting components reduce the playing volume when the playing volume exceeds the threshold A.

18. An audio device as set forth in claim 14, wherein there is a threshold B for a range B greater than the range A, and wherein, when the sensed distance is greater than range A but less than or equal to range B, the volume-adjusting components adjust the playing volume based upon a comparison with the threshold B.

19. An audio device as set forth in claim 18, wherein:

when the sensed distance is less than or equal to range A, the volume-adjusting components reduce the playing volume when the playing volume exceeds the threshold A; and

when the sensed distance is greater than range A and less than or equal to range B, the volume-adjusting components reduce the playing volume when the playing volume exceeds the threshold B.

20. An audio device as set forth in claim 18, wherein:

when the sensed distance is less than or equal to range A, the volume-adjusting components increase the playing volume when the playing volume is less than or equal to the threshold A; and

when the sensed distance is greater than range A and less than or equal to range B, the volume-adjusting components increase the playing volume when the playing volume is less than or equal to the threshold A.

21. An audio device as set forth in claim 18, wherein:

when the sensed distance is less than or equal to range A, the volume-adjusting components reduce the playing volume when it exceeds the threshold A and increase the playing volume when it is less than or equal to the threshold A;

when the sensed distance is greater than range A and less than or equal to range B, the volume-adjusting components reduce the playing volume when the playing volume exceeds the threshold B and increase the playing volume when it is less than or equal to threshold A.

22. An audio device as set forth in claim 18, wherein there is a predetermined acceptable volume threshold C for a predetermined range C greater than the range B, and wherein, when the sensed distance is greater than range B but less than or equal to range C, the volume-adjusting components adjust the playing volume based on the threshold C.

23. An audio device as set forth in claim 1, wherein the volume-adjusting components determine an unacceptable volume level for the distance sensed by the proximity sensor and then adjust the playing volume based upon the sensed distance.

24. An audio device as set forth in claim 23, wherein the unacceptable volume level occurs when the playing volume exceeds an acceptable volume threshold for a sensed distance and the volume adjustment comprises decreasing the playing volume.

25. An audio device as set forth in claim 24, wherein data used to determine the acceptable volume threshold for a sensed distance is provided by previous testing to establish safe decibel levels.

26. An audio device as set forth in claim 23, wherein the unacceptable volume level occurs when the playing volume is less than an acceptable volume threshold for a sensed distance and the volume adjustment comprises increasing the playing volume.