CN100454956C - 一种用于降低铃流源功率消耗的电路 - Google Patents
一种用于降低铃流源功率消耗的电路 Download PDFInfo
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- CN100454956C CN100454956C CNB2003101226238A CN200310122623A CN100454956C CN 100454956 C CN100454956 C CN 100454956C CN B2003101226238 A CNB2003101226238 A CN B2003101226238A CN 200310122623 A CN200310122623 A CN 200310122623A CN 100454956 C CN100454956 C CN 100454956C
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Application Number | Priority Date | Filing Date | Title |
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CNB2003101226238A CN100454956C (zh) | 2003-12-19 | 2003-12-19 | 一种用于降低铃流源功率消耗的电路 |
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CNB2003101226238A CN100454956C (zh) | 2003-12-19 | 2003-12-19 | 一种用于降低铃流源功率消耗的电路 |
Publications (2)
Publication Number | Publication Date |
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CN1630327A CN1630327A (zh) | 2005-06-22 |
CN100454956C true CN100454956C (zh) | 2009-01-21 |
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CNB2003101226238A Expired - Lifetime CN100454956C (zh) | 2003-12-19 | 2003-12-19 | 一种用于降低铃流源功率消耗的电路 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102301690A (zh) * | 2010-12-20 | 2011-12-28 | 华为技术有限公司 | 生成电话振铃信号的方法、装置及系统 |
CN105721730B (zh) * | 2016-01-15 | 2018-11-30 | 烽火通信科技股份有限公司 | 双路语音终端设备的pots端口低功耗的实现方法 |
CN108566495B (zh) * | 2018-05-31 | 2023-10-10 | 杭州小犇科技有限公司 | 一种支持全呼功能的用户电路 |
CN109525742B (zh) * | 2019-01-04 | 2020-12-08 | 烽火通信科技股份有限公司 | 一种多路语音设备铃流电压智能调节方法及系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992019062A1 (en) * | 1991-04-15 | 1992-10-29 | Northern Telecom Limited | Current limited circuit for subscriber interface |
CN1230841A (zh) * | 1998-03-29 | 1999-10-06 | 孙连仲 | 电话交换机送振铃信号方法 |
WO2001008388A1 (en) * | 1999-07-26 | 2001-02-01 | Catena Networks, Inc. | Reduced power line driver |
CN1063305C (zh) * | 1998-08-15 | 2001-03-14 | 深圳市华为电气股份有限公司 | 中大功率铃流变换器的次级功率管驱动电路 |
CN1068748C (zh) * | 1996-02-07 | 2001-07-18 | 汇众实业总公司 | 程控交换机铃流电源 |
CN1087546C (zh) * | 1998-08-15 | 2002-07-10 | 深圳市安圣电气有限公司 | 小功率铃流发生器的次级信号切换电路 |
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2003
- 2003-12-19 CN CNB2003101226238A patent/CN100454956C/zh not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992019062A1 (en) * | 1991-04-15 | 1992-10-29 | Northern Telecom Limited | Current limited circuit for subscriber interface |
CN1068748C (zh) * | 1996-02-07 | 2001-07-18 | 汇众实业总公司 | 程控交换机铃流电源 |
CN1230841A (zh) * | 1998-03-29 | 1999-10-06 | 孙连仲 | 电话交换机送振铃信号方法 |
CN1063305C (zh) * | 1998-08-15 | 2001-03-14 | 深圳市华为电气股份有限公司 | 中大功率铃流变换器的次级功率管驱动电路 |
CN1087546C (zh) * | 1998-08-15 | 2002-07-10 | 深圳市安圣电气有限公司 | 小功率铃流发生器的次级信号切换电路 |
WO2001008388A1 (en) * | 1999-07-26 | 2001-02-01 | Catena Networks, Inc. | Reduced power line driver |
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CN1630327A (zh) | 2005-06-22 |
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Owner name: SHANGHAI ALCATEL-LUCENT CO., LTD. Free format text: FORMER NAME: BEIER AERKATE CO., LTD., SHANGHAI |
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Address after: 201206 Pudong Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Patentee after: ALCATEL-LUCENT SHANGHAI BELL Co.,Ltd. Address before: 201206 Pudong Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Patentee before: Shanghai Bell Alcatel Co.,Ltd. |
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Address after: 201206 Pudong Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Patentee after: NOKIA SHANGHAI BELL Co.,Ltd. Address before: 201206 Pudong Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Patentee before: ALCATEL-LUCENT SHANGHAI BELL Co.,Ltd. |
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