CN203070246U - 一种具io扩展接口的电子白板控制装置 - Google Patents
一种具io扩展接口的电子白板控制装置 Download PDFInfo
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- CN203070246U CN203070246U CN 201220657528 CN201220657528U CN203070246U CN 203070246 U CN203070246 U CN 203070246U CN 201220657528 CN201220657528 CN 201220657528 CN 201220657528 U CN201220657528 U CN 201220657528U CN 203070246 U CN203070246 U CN 203070246U
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- electronic whiteboard
- microcontroller
- circuit
- expansion
- control device
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CN 201220657528 CN203070246U (zh) | 2012-12-01 | 2012-12-01 | 一种具io扩展接口的电子白板控制装置 |
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CN 201220657528 CN203070246U (zh) | 2012-12-01 | 2012-12-01 | 一种具io扩展接口的电子白板控制装置 |
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CN203070246U true CN203070246U (zh) | 2013-07-17 |
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CN 201220657528 Expired - Fee Related CN203070246U (zh) | 2012-12-01 | 2012-12-01 | 一种具io扩展接口的电子白板控制装置 |
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CN (1) | CN203070246U (zh) |
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2012
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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 New Asia Intelligent Technology Co., Ltd. Assignor: Zhongshan Jiashi Optoelectronics Technology Co., Ltd. Contract record no.: 2015440000284 Denomination of utility model: Electronic whiteboard control device with IO expansion interfaces Granted publication date: 20130717 License type: Exclusive License Record date: 20150618 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20151201 |
|
EXPY | Termination of patent right or utility model |