BATTERY POWER MONITORING AND AUDIO SIGNAL ATTENUATION

PROBLEM TO BE SOLVED: To reduce the risk of brown outs and resets in a mobile station using a far-field speaker.SOLUTION: A voltage level of a battery and a level of an input audio signal are monitored. When the level of the audio signal increases past a threshold level, and the voltage level of the...

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Bibliographische Detailangaben
Hauptverfasser:	ROY B SILVERSTEIN, DINESH RAMAKRISHNAN
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CALCULATING COMPUTING COUNTING DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PHYSICS PUBLIC ADDRESS SYSTEMS TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To reduce the risk of brown outs and resets in a mobile station using a far-field speaker.SOLUTION: A voltage level of a battery and a level of an input audio signal are monitored. When the level of the audio signal increases past a threshold level, and the voltage level of the battery falls below a threshold voltage, an attenuation is determined and applied to the digital audio signal. The applied attenuation reduces the volume of the audio signal, and reduces the risk of a brown out or a reset due to an insufficient voltage in the mobile station. 【課題】遠方場スピーカを使用している移動局における電圧低下およびリセットのリスクを低下する。【解決手段】バッテリーの電圧レベルおよび入力された音声信号のレベルが監視される。音声信号のレベルが閾値レベルを超えて増加し、バッテリーの電圧レベルが閾値電圧を下回るとき、減衰が決定され、デジタル音声信号に適用される。適用された減衰は、音声信号の量を低下させ、移動局における不十分な電圧による電圧低下またはリセットのリスクを低下する。【選択図】図１