User protection in a multimode personal communication device
First Claim
1. A method for preventing acoustic shock in a portable communication device (PCD), comprisingproviding in the PCD a plurality of audio streams including a telephony audio stream and at least a second audio stream;
- reproducing the second audio stream using a loudspeaker in the PCD having a high capacity audio output capability;
responsive to the occurrence of a telephony session, re-routing the second audio stream from the loudspeaker to a handset speaker in the PCD having a low capacity audio output capability, and reproducing the telephony audio stream and the second audio stream using the handset speaker;
upon termination of the telephony session, re-routing the second audio stream from the handset speaker to the loudspeaker;
subsequent to said re-routing gradually increasing an audio output drive level of the second audio stream over a period of time in accordance with a predetermined ramp function until the audio output drive level of the second audio stream corresponds with the predetermined output drive level setting for the second audio stream; and
during said period of time, selectively reproducing with the loudspeaker a series of warning tones at the audio output drive level for the second audio stream as determined by the predetermined ramp function.
1 Assignment
0 Petitions
Accused Products
Abstract
Portable communication device (100) generates a telephony audio stream and at least a second audio stream. Responsive to the occurrence of a telephony session, the second audio stream is re-routed from a loudspeaker (234) to a handset speaker (230) in the PCD (100) having a low capacity audio output capability. Upon termination of the telephony session, the second audio stream is re-routed from the handset speaker (230) to the loudspeaker (234). Subsequent to such re-routing, an audio output drive level of the second audio stream is caused to gradually increase over a period of time in accordance with a predetermined ramp function. A series of warning tones are reproduced to warn the user of the potential for high volume audio.
14 Citations
22 Claims
-
1. A method for preventing acoustic shock in a portable communication device (PCD), comprising
providing in the PCD a plurality of audio streams including a telephony audio stream and at least a second audio stream; -
reproducing the second audio stream using a loudspeaker in the PCD having a high capacity audio output capability; responsive to the occurrence of a telephony session, re-routing the second audio stream from the loudspeaker to a handset speaker in the PCD having a low capacity audio output capability, and reproducing the telephony audio stream and the second audio stream using the handset speaker; upon termination of the telephony session, re-routing the second audio stream from the handset speaker to the loudspeaker; subsequent to said re-routing gradually increasing an audio output drive level of the second audio stream over a period of time in accordance with a predetermined ramp function until the audio output drive level of the second audio stream corresponds with the predetermined output drive level setting for the second audio stream; and during said period of time, selectively reproducing with the loudspeaker a series of warning tones at the audio output drive level for the second audio stream as determined by the predetermined ramp function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method for protecting a user of a portable communication device (PCD), comprising
generating in the PCD a plurality of audio streams including a telephony audio stream and at least a second audio stream; -
reproducing the second audio stream using a loudspeaker in the PCD having a high capacity audio output capability; responsive to the occurrence of a telephony session, re-routing the second audio stream from the loudspeaker to a handset speaker in the PCD having a low capacity audio output capability, and exclusively reproducing the telephony audio stream and the second audio stream using the handset speaker; upon termination of the telephony session, re-routing the second audio stream from the handset speaker to the loudspeaker; subsequent to said re-routing gradually increasing an audio output drive level of the second audio stream over a period of time in accordance with a predetermined ramp function until the audio output drive level of the second audio stream corresponds with the predetermined output drive level setting for the second audio stream; and during said period of time, selectively increasing a maximum allowed RF transmit power level of at least one transmitter included in the PCD. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A portable communication device (PCD), comprising
at least one processing device configured to generate a plurality of audio streams including a telephony audio stream and at least a second audio stream; -
cause the second audio stream to be reproduced using a loudspeaker in the PCD having a high capacity audio output capability; responsive to the occurrence of a telephony session, cause the re-routing of the second audio stream from the loudspeaker to a handset speaker in the PCD having a low capacity audio output capability, and causing the telephony audio stream and the second audio stream to be reproduced using the handset speaker; re-route the second audio stream from the handset speaker to the loudspeaker upon termination of the telephony session; subsequent to said re-routing gradually cause an audio output drive level of the second audio stream to increase over a period of time in accordance with a predetermined ramp function until the audio output drive level of the second audio stream corresponds with the predetermined output drive level setting for the second audio stream; and during the period of time, cause the loudspeaker to reproduce a series of warning tones at the audio output drive level for the second audio stream as determined by the predetermined ramp function.
-
-
19. A portable communication device (PCD) with user protection, comprising at least one processing device configured to
generate in the PCD a plurality of audio streams including a telephony audio stream and at least a second audio stream; -
cause the second audio stream to be reproduced using a loudspeaker in the PCD having a high capacity audio output capability; responsive to the occurrence of a telephony session, cause re-routing of the second audio stream from the loudspeaker to a handset speaker in the PCD having a low capacity audio output capability, and to exclusively reproduce the telephony audio stream and the second audio stream using the handset speaker; upon termination of the telephony session, cause re-routing of the second audio stream from the handset speaker to the loudspeaker; subsequent to said re-routing, cause a gradual increase in an audio output drive level of the second audio stream over a period of time in accordance with a predetermined ramp function until the audio output drive level of the second audio stream corresponds with the predetermined output drive level setting for the second audio stream; and during the period of time, cause the loudspeaker to reproduce a series of warning tones at a tone audio output drive level determined by the predetermined ramp function. - View Dependent Claims (20)
-
-
21. A method for protecting a user of a portable communication device (PCD), comprising:
-
generating in the PCD at least one audio stream; reproducing the at least one audio stream using a loudspeaker in the PCD having a high capacity audio output capability; responsive to the initiation of a low audio listening session in which only a low capacity audio output capability is selected for reproduction of audio, selectively decreasing an output drive level for a loudspeaker and a maximum allowed RF transmit power level of at least one transmitter device included in the PCD; and selectively increasing the output drive level for the loudspeaker and a maximum allowed RF transmit power level of the at least one transmitter device included in the PCD during a period of time following termination of the low audio listening session. - View Dependent Claims (22)
-
Specification