CN1434599A - 用户接口电路二四线转换及直流馈电装置 - Google Patents
用户接口电路二四线转换及直流馈电装置 Download PDFInfo
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- CN1434599A CN1434599A CN 03119293 CN03119293A CN1434599A CN 1434599 A CN1434599 A CN 1434599A CN 03119293 CN03119293 CN 03119293 CN 03119293 A CN03119293 A CN 03119293A CN 1434599 A CN1434599 A CN 1434599A
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Application Number | Priority Date | Filing Date | Title |
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CNB031192939A CN1190037C (zh) | 2003-03-07 | 2003-03-07 | 用户接口电路二四线转换及直流馈电装置 |
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CNB031192939A CN1190037C (zh) | 2003-03-07 | 2003-03-07 | 用户接口电路二四线转换及直流馈电装置 |
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CN1434599A true CN1434599A (zh) | 2003-08-06 |
CN1190037C CN1190037C (zh) | 2005-02-16 |
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CNB031192939A Expired - Fee Related CN1190037C (zh) | 2003-03-07 | 2003-03-07 | 用户接口电路二四线转换及直流馈电装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102208984A (zh) * | 2011-05-25 | 2011-10-05 | 北京星网锐捷网络技术有限公司 | 一种信号传输方法、网络接口及网络设备 |
WO2015058403A1 (zh) * | 2013-10-25 | 2015-04-30 | 华为技术有限公司 | 铜线接口电路 |
CN108429568A (zh) * | 2018-05-14 | 2018-08-21 | 北京豪沃尔科技发展股份有限公司 | 一种二线四线转换电路及转换方法 |
-
2003
- 2003-03-07 CN CNB031192939A patent/CN1190037C/zh not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102208984A (zh) * | 2011-05-25 | 2011-10-05 | 北京星网锐捷网络技术有限公司 | 一种信号传输方法、网络接口及网络设备 |
CN102208984B (zh) * | 2011-05-25 | 2013-10-23 | 北京星网锐捷网络技术有限公司 | 一种信号传输方法、网络接口及网络设备 |
WO2015058403A1 (zh) * | 2013-10-25 | 2015-04-30 | 华为技术有限公司 | 铜线接口电路 |
US9742463B2 (en) | 2013-10-25 | 2017-08-22 | Huawei Technologies Co., Ltd. | Copper wire interface circuit |
CN108429568A (zh) * | 2018-05-14 | 2018-08-21 | 北京豪沃尔科技发展股份有限公司 | 一种二线四线转换电路及转换方法 |
CN108429568B (zh) * | 2018-05-14 | 2024-01-30 | 河北豪沃尔智能科技有限责任公司 | 一种二线四线转换电路及转换方法 |
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Publication number | Publication date |
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CN1190037C (zh) | 2005-02-16 |
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Owner name: HUAWEI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GANGWAN NETWORK CO., LTD. Effective date: 20060922 |
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Effective date of registration: 20060922 Address after: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee after: Huawei Technologies Co., Ltd. Address before: 100089, No. 21 West Third Ring Road, Beijing, Haidian District, Long Ling Building, 13 floor Patentee before: Harbour Networks Holdings Limited |
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Granted publication date: 20050216 Termination date: 20110307 |