MP3+Bluetooth功能整合之研究-以Sigmatel 35XX系列及 Bluetooth 單晶片為架構
No Thumbnail Available
Date
2006
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
摘要
由於目前 MP3 數位隨身聽僅提供一般播放功能；且其電源耐久性不足，若無備份電源支援，在緊急需要時，行動續航力將顯不足。此外，因藍芽無線設備具有低輻射的特色，所以對人體的危害也較低。而藍芽無線傳輸技術在傳輸過程中使用跳頻機制，使資料很難被截收，也因此降低其他電磁波干擾所造成的影響，並且可以在傳輸中加密，提供更可靠安全的無線通訊環境；低功率、低成本及成熟的模組整合技術也是發展一個嵌入式系統所需具備的重要特性。為將藍芽無線技術與 MP3 功能整合，在本論文中，我們設計並改良一個具有藍芽無線耳機 Hand-free /set 功能的可攜式 MP3 數位音樂播放器系統。
本系統包括 MP3 播放器、麥克風錄音、電話密錄、外接記憶卡介面、耳機輸出，以及接聽藍芽行動電話( Bluetooth Wireless )功能。此外，為了滿足系統低消耗功率、減少重複充電次數和有效的延長使用時間的需求下，我們選用 LED 燈號及單頻提示音來顯現系統的工作狀態，以避免過多的功率消耗，並設計備援電池電路為避免無電力可用之窘況，以改善行動續航力。
關鍵字：MP3、SDK 軟體開發環境工具、藍芽技術
Abstract Owing to the limited function of current MP3 player walkman, and its shortage of power supply duration, some improvement must be considered to enhance this device. Besides, since the Bluetooth wireless communication system has advantages of low electromagnetic radiation, difficult to capture during frequency-hopping processing, and easy to encrypt in the transmission procedure, it can be made a safe environment for wireless communication. The purpose of this research is to integrate Bluetooth Hand-free/set wireless techniques and MP3 player with low power, low cost embedded system to enhance its performance. The developed MP3 player system using SDK software develops kits includes the function of microphone sound recording, telephone secret recording, external memory card interfacing, earphone output, and being able to receive Bluetooth cellular phone. In addition, the low power dissipation, durable LED display circuit with single tone to alarm the working status was designed to avoid embarrassed condition of facing power failure unexpectedly. The overall function of this developed system has been proved successfully after experiment. Keywords: MP3, SDK software develops kits, Bluetooth
Abstract Owing to the limited function of current MP3 player walkman, and its shortage of power supply duration, some improvement must be considered to enhance this device. Besides, since the Bluetooth wireless communication system has advantages of low electromagnetic radiation, difficult to capture during frequency-hopping processing, and easy to encrypt in the transmission procedure, it can be made a safe environment for wireless communication. The purpose of this research is to integrate Bluetooth Hand-free/set wireless techniques and MP3 player with low power, low cost embedded system to enhance its performance. The developed MP3 player system using SDK software develops kits includes the function of microphone sound recording, telephone secret recording, external memory card interfacing, earphone output, and being able to receive Bluetooth cellular phone. In addition, the low power dissipation, durable LED display circuit with single tone to alarm the working status was designed to avoid embarrassed condition of facing power failure unexpectedly. The overall function of this developed system has been proved successfully after experiment. Keywords: MP3, SDK software develops kits, Bluetooth
Description
Keywords
MP3, SDK 軟體開發環境工具, 藍芽技術, MP3, SDK software develops kits, Bluetooth