TWI456491B - 介面電路及具有該介面電路的電子裝置 - Google Patents

介面電路及具有該介面電路的電子裝置 Download PDF

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Publication number
TWI456491B
TWI456491B TW100109339A TW100109339A TWI456491B TW I456491 B TWI456491 B TW I456491B TW 100109339 A TW100109339 A TW 100109339A TW 100109339 A TW100109339 A TW 100109339A TW I456491 B TWI456491 B TW I456491B
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Taiwan
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pin
electrically connected
source terminal
sound source
signal
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TW100109339A
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English (en)
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TW201239749A (en
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Tzu Ping Lin
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Wistron Neweb Corp
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Priority to TW100109339A priority Critical patent/TWI456491B/zh
Priority to US13/422,419 priority patent/US8806079B2/en
Publication of TW201239749A publication Critical patent/TW201239749A/zh
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit For Audible Band Transducer (AREA)

Claims (8)

  1. 一種介面電路，應用於一電子裝置，該電子裝置包括一可與一第二音源端子電連接的第一音源端子，及一音訊模組，該介面電路包含：一偵測模組，電連接於該第一音源端子，且於該第一音源端子與該第二音源端子電連接時輸出一偵測訊號；一控制模組，包括一電連接於該偵測模組且用以接收該偵測訊號的偵測接腳、一訊號接收接腳及一訊號發送接腳；及一切換模組，電連接於該訊號接收接腳、該訊號發送接腳、該第一音源端子及該音訊模組；其中，該控制模組於該偵測接腳接收該偵測訊號時，控制該切換模組將該訊號接收接腳與該第一音源端子電連接，並判斷該訊號接收接腳是否接收到一由該第二音源端子發送的更新資訊，若有，則控制該切換模組將該訊號接收接腳及該訊號發送接腳電連接該第一音源端子，以進行程式更新；該控制模組若判斷該訊號接收接腳無接收到該更新資訊，則控制該切換模組將該音訊模組電連接該第一音源端子，使該音訊模組可發送一音源訊號至該第二音源端子。
  2. 依據申請專利範圍第1項所述之介面電路，其中，該切換模組包括一第一切換單元及一第二切換單元，該第一切換單元電連接於該訊號接收接腳、該訊號發送接腳及該第一音源端子，該第二切換單元電連接於該第一音源端子及該音訊模組，當該控制模組判斷該訊號接收接腳有接收到該更新資訊，則控制該第一切換單元將該訊號接收接腳及該訊號發送接腳電連接該第一音源端子；當該控制模組判斷該訊號接收接腳無接收到該更新資訊，則控制該第二切換單元將該音訊模組電連接該第一音源端子。
  3. 依據申請專利範圍第2項所述之介面電路，其中，該第一音源端子具有一接地的第一接腳、一第二接腳、一第三接腳及一與第二接腳電連接的第四接腳，該控制模組還包括一第二控制接腳及一第三控制接腳，該第一切換單元有一第一通訊埠，電連接於該第四接腳；一第二通訊埠，電連接於該第三接腳；一第一傳輸埠，電連接於該訊號接收接腳；一第二傳輸埠，電連接於該訊號發送接腳；一第一控制埠，電連接於該第三控制接腳，用以控制該第一通訊埠及該第一傳輸埠的電連接與否；及一第二控制埠，電連接於該第二控制接腳，用以控制該第二通訊埠及該第二傳輸埠的電連接與否；該控制模組於該偵測接腳接收該偵測訊號時，控制該第三控制接腳將該第一切換單元的該第一通訊埠與該第一傳輸埠電連接，以使該訊號接收接腳與該第四接腳電連接，且當該控制模組判斷該訊號接收接腳有接收到該更新資訊，則控制該第二控制接腳將該第一切換單元的該第二通訊埠與該第二傳輸埠電連接，以使該訊號接收接腳及該訊號發送接腳分別電連接該第四接腳及該第三接腳。
  4. 依據申請專利範圍第3項所述之介面電路，其中，該控制模組還包括一第一控制接腳，該音源訊號包括一第一音源訊號及一第二音源訊號，該第二切換單元有一第三通訊埠，電連接於該第一音源端子的第四接腳及該第一切換單元的第一通訊埠；一第四通訊埠，電連接於該第一音源端子的第三接腳及該第一切換單元的第二通訊埠；一第三傳輸埠，電連接於該音訊模組並接收該第一音源訊號；一第四傳輸埠，電連接於該音訊模組並接收該第二音源訊號；及一第三控制埠，電連接於該第一控制接腳，用以控制該第三通訊埠與該第三傳輸埠，以及該第四通訊埠與該第四傳輸埠之間電連接與否；當該控制模組判斷該訊號接收接腳無接收到該更新資訊，則控制該第一控制接腳將該第二切換單元的第三通訊埠與該第三傳輸埠電連接，以及該第四通訊埠與該第四傳輸埠電連接，以使該音訊模組電連接該第一音源端子。
  5. 依據申請專利範圍第4項所述之介面電路，其中，該偵測模組具有一第一電阻及一第二電阻，該第一電阻電連接於一電源及該第一音源端子的第二接腳之間，該第二電阻電連接於該第一音源端子的第四接腳及地之間，且於該第一音源端子與該第二音源端子電連接時，由該第一電阻與該第二電阻的電連接處輸出該偵測訊號。
  6. 依據申請專利範圍第1項所述之介面電路，其中，該電子裝置係為一無同步橋接座類型的隨插即用電子裝置。
  7. 依據申請專利範圍第1項所述之介面電路，其中，該第一音源端子係為一3.5mm音源接孔，該第二音源端子係為一3.5mm音源接頭。
  8. 一種電子裝置，包含：一第一音源端子，可供一第二音源端子電連接；一音訊模組；及一如申請專利範圍第1~7項中任一項所述之介面電路。
TW100109339A 2011-03-18 2011-03-18 介面電路及具有該介面電路的電子裝置 TWI456491B (zh)

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TW100109339A TWI456491B (zh) 2011-03-18 2011-03-18 介面電路及具有該介面電路的電子裝置
US13/422,419 US8806079B2 (en) 2011-03-18 2012-03-16 Interface circuit and an electronic device including the same

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US20120239828A1 (en) 2012-09-20
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