CN2842838Y - Usb接口电路 - Google Patents
Usb接口电路 Download PDFInfo
- Publication number
- CN2842838Y CN2842838Y CNU2005200358342U CN200520035834U CN2842838Y CN 2842838 Y CN2842838 Y CN 2842838Y CN U2005200358342 U CNU2005200358342 U CN U2005200358342U CN 200520035834 U CN200520035834 U CN 200520035834U CN 2842838 Y CN2842838 Y CN 2842838Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- usb
- processor
- interface
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Description
STANDARD-A接口 | 驱动电路电平信号 | 本机状态 | 外设状态 |
无外设接入 | 0 | ||
外设接入后 | 1 | 设为从设备 | 设为主设备 |
外设接入后 | 0 | 设为主设备 | 设为从设备 |
MINI AB接口 | 驱动电路电平信号 | ID电平信号 | 本机状态 | 外设状态 |
无外设接入 | 0 | 高阻态 | ||
外设接入后 | 1 | 高阻态 | 设为从设备 | 设为主设备 |
外设接入后 | 0 | 0 | 设为主设备 | 设为从设备 |
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2005200358342U CN2842838Y (zh) | 2005-10-24 | 2005-10-24 | Usb接口电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2005200358342U CN2842838Y (zh) | 2005-10-24 | 2005-10-24 | Usb接口电路 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2842838Y true CN2842838Y (zh) | 2006-11-29 |
Family
ID=37446709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2005200358342U Expired - Fee Related CN2842838Y (zh) | 2005-10-24 | 2005-10-24 | Usb接口电路 |
Country Status (1)
Country | Link |
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CN (1) | CN2842838Y (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8332664B2 (en) | 2007-06-15 | 2012-12-11 | Apple Inc. | Systems and methods for providing device-to-device handshaking through a power supply signal |
CN104573468A (zh) * | 2015-01-30 | 2015-04-29 | 北京世纪龙脉科技有限公司 | 一种单核多usb接口的安全认证设备 |
-
2005
- 2005-10-24 CN CNU2005200358342U patent/CN2842838Y/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8332664B2 (en) | 2007-06-15 | 2012-12-11 | Apple Inc. | Systems and methods for providing device-to-device handshaking through a power supply signal |
CN104573468A (zh) * | 2015-01-30 | 2015-04-29 | 北京世纪龙脉科技有限公司 | 一种单核多usb接口的安全认证设备 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangdong Changhong Digital Technology Co., Ltd. Assignor: Sichuan Changhong Electrical Appliance Co., Ltd. Contract fulfillment period: 2006.11.30 to 2011.11.29 Contract record no.: 2008440000487 Denomination of utility model: USB (universal serial bus) interface circuit with electrostatic protection Granted publication date: 20061129 License type: Exclusive license Record date: 20081211 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.11.30 TO 2011.11.29; CHANGE OF CONTRACT Name of requester: GUANGDONG CHANGHONG DIGITAL TECHNOLOGY CO., LTD. Effective date: 20081211 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20131024 |