TWI456897B - 通用序列匯流排裝置的干擾防護方法 - Google Patents
通用序列匯流排裝置的干擾防護方法 Download PDFInfo
- Publication number
- TWI456897B TWI456897B TW100120458A TW100120458A TWI456897B TW I456897 B TWI456897 B TW I456897B TW 100120458 A TW100120458 A TW 100120458A TW 100120458 A TW100120458 A TW 100120458A TW I456897 B TWI456897 B TW I456897B
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- status
- level adjustment
- status signal
- protection method
- Prior art date
Links
Landscapes
- Dc Digital Transmission (AREA)
- Information Transfer Systems (AREA)
- Bus Control (AREA)
Claims (10)
- 一種干擾防護方法,適用於一USB裝置,該USB裝置包括一電源接腳、一接地接腳以及二資料接腳與一USB狀態模式,該干擾防護方法包括下列步驟:偵測該USB裝置,在該電源接腳及該接地接腳間的電壓差大於一門檻值時,判斷一干擾訊號發生;根據該干擾訊號產生一致能訊號;根據該USB裝置的資料封包傳輸狀態,產生一狀態訊號,該狀態訊號係為一IDLE狀態訊號、一TX狀態訊號或一RX狀態訊號的其中之一;以及根據該致能訊號以及該狀態訊號產生一第一準位調整訊號或一第二準位調整訊號;其中,依據該第一準位調整訊號及該第二準位調整訊號改變該USB狀態模式,使該二資料接腳間的電壓差維持在一實質固定的準位。
- 如請求項1之干擾防護方法,其中該根據該致能訊號以及該狀態訊號產生該第一準位調整訊號或該第二準位調整訊號的步驟,還包括當該狀態訊號係為該IDLE狀態訊號時,根據該致能訊號以及該狀態訊號產生該第一準位調整訊號,使該USB裝置由一RX模式切換為一TX模式。
- 如請求項1之干擾防護方法,其中該根據該致能訊號以及該狀態訊號產生該第一準位調整訊號或該第二準位調整訊號的步驟,還包括當該狀態訊號係為該TX狀態訊號時,根據該致能訊號以及該狀態訊號產生該第二準位調整訊號,使該USB裝置維持在一TX模式,並調整USB PHY之驅動能力。
- 如請求項1之干擾防護方法,更包括根據一預設值重置該致能訊號。
- 如請求項1之干擾防護方法,其中該根據該USB裝置的資料封包傳輸狀態,產生一狀態訊號,該狀態訊號係為一IDLE狀態訊號、一TX狀態訊號或一RX狀態訊號的其中之一的步驟還包括對該二資料接腳上的訊號進行解碼以產生該狀態訊號。
- 如請求項1之干擾防護方法,更包括經由一實體層將該第一準位調整訊號及該第二準位調整訊號轉換成電流形式,以驅動該二資料接腳。
- 一種適用於USB裝置的干擾防護方法,該USB裝置包括一電源接腳、一接地接腳以及二質料接腳與一IDLE狀態訊號,該干擾防護方法包括下列步驟;偵測該USB裝置,在該電源接腳及該接地接腳間的電壓差大於一門檻值時,判斷一干擾訊號發生;根據該干擾訊號產生一致能訊號;根據該致能訊號以及該IDLE狀態訊號產生一準位調整訊號;以及根據該準位調整訊號使該USB裝置由一RX模式切換為一TX模式;其中,該準位調整訊號使該二資料接腳間的電壓差維持在一實質固定的準位。
- 如請求項7之干擾防護方法,更包括根據一預設值重置該致能訊號。
- 如請求項7之干擾防護方法,其中該根據該USB裝置的資料封包傳輸狀態,產生一狀態訊號,該狀態訊號係為一IDLE狀態訊號、一TX狀態訊號或一RX狀態訊號的其中之一的步驟還包括對該二資料接腳上的訊號進行解碼以產生該狀態訊號。
- 如請求項7之干擾防護方法,更包括經由一實體層將該第一準位調整訊號及該第二準位調整訊號轉換成電流形式,以驅動該二資料接腳。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW100120458A TWI456897B (zh) | 2011-06-10 | 2011-06-10 | 通用序列匯流排裝置的干擾防護方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW100120458A TWI456897B (zh) | 2011-06-10 | 2011-06-10 | 通用序列匯流排裝置的干擾防護方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201251327A TW201251327A (en) | 2012-12-16 |
TWI456897B true TWI456897B (zh) | 2014-10-11 |
Family
ID=48139445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW100120458A TWI456897B (zh) | 2011-06-10 | 2011-06-10 | 通用序列匯流排裝置的干擾防護方法 |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI456897B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109740105B (zh) * | 2018-12-29 | 2024-04-30 | 江苏金智科技股份有限公司 | 一种用于母线保护装置的抗工频磁场干扰方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005085151A (ja) * | 2003-09-10 | 2005-03-31 | Renesas Technology Corp | Usbバッファ回路 |
TW200723632A (en) * | 2005-12-15 | 2007-06-16 | Inventec Corp | Current overload status-informing system and the method |
TW200919965A (en) * | 2007-10-19 | 2009-05-01 | High Tech Comp Corp | Detecting circuit and detecting method thereof |
US20090206887A1 (en) * | 2008-02-15 | 2009-08-20 | Analog Devices, Inc. | Differential current output driver with overvoltage protection |
WO2009103315A1 (en) * | 2008-02-20 | 2009-08-27 | Verigy (Singapore) Pte. Ltd. | System, method and computer program for detecting an electrostatic discharge event |
EP2267897A1 (en) * | 2002-05-31 | 2010-12-29 | Fujitsu Semiconductor Limited | Input/output buffer |
US7888969B2 (en) * | 2009-02-06 | 2011-02-15 | Infineon Technologies Ag | Driver circuit for a two-wire conductor and method for generating two output currents for a two-wire conductor |
-
2011
- 2011-06-10 TW TW100120458A patent/TWI456897B/zh active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2267897A1 (en) * | 2002-05-31 | 2010-12-29 | Fujitsu Semiconductor Limited | Input/output buffer |
JP2005085151A (ja) * | 2003-09-10 | 2005-03-31 | Renesas Technology Corp | Usbバッファ回路 |
TW200723632A (en) * | 2005-12-15 | 2007-06-16 | Inventec Corp | Current overload status-informing system and the method |
TW200919965A (en) * | 2007-10-19 | 2009-05-01 | High Tech Comp Corp | Detecting circuit and detecting method thereof |
US20090206887A1 (en) * | 2008-02-15 | 2009-08-20 | Analog Devices, Inc. | Differential current output driver with overvoltage protection |
WO2009103315A1 (en) * | 2008-02-20 | 2009-08-27 | Verigy (Singapore) Pte. Ltd. | System, method and computer program for detecting an electrostatic discharge event |
US7888969B2 (en) * | 2009-02-06 | 2011-02-15 | Infineon Technologies Ag | Driver circuit for a two-wire conductor and method for generating two output currents for a two-wire conductor |
Also Published As
Publication number | Publication date |
---|---|
TW201251327A (en) | 2012-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2528034A4 (en) | Image management device, image management method, program, recording medium, and integrated circuit | |
JP2012010386A5 (zh) | ||
WO2011074896A3 (ko) | 적응적 영상 부호화 장치 및 방법 | |
WO2011107602A3 (en) | Methods and device for laser processing | |
WO2012170864A3 (en) | Efficient transmission for low data rate wlan | |
WO2013090021A3 (en) | Electric power dissipation control | |
WO2012134239A3 (ko) | 디지털 값 생성 장치 및 방법 | |
JP2013510414A5 (zh) | ||
WO2011139435A3 (en) | High-temperature selective dry etch having reduced post-etch solid residue | |
WO2014007938A3 (en) | Wake-up functionality for an lte enodeb | |
EP2421149A4 (en) | Power circuit, and computer-readable recording medium containing a control program for power circuits | |
WO2013057571A3 (en) | Electric vehicle with discharge protection | |
WO2015084651A3 (en) | Method and device for path-loss estimation | |
EP2128958A3 (en) | Current Breaking Method for Rechargeable Battery and Battery Pack Using the Same | |
WO2013049290A8 (en) | Systems and method for reduced power wireless communication | |
WO2012118714A3 (en) | Timing calibration for multimode i/o systems | |
JP2014107906A5 (zh) | ||
WO2013051863A3 (ko) | 배터리 충전 장치 및 방법 | |
WO2012082860A3 (en) | Closed-loop silicon etching control method and system | |
WO2013087150A3 (de) | Verfahren und vorrichtung zur temperaturabhängigen steuerung eines elektromotors | |
JP2016163403A5 (zh) | ||
WO2012175994A3 (en) | Method and apparatus for maintaining a minimum temperature in a fluid | |
JP2012205817A5 (zh) | ||
TWI456897B (zh) | 通用序列匯流排裝置的干擾防護方法 | |
WO2013058920A3 (en) | Motor control circuit and method that reduce speed jitter of an electric motor |