CN1073769C - 一种和数字程控交换机互联的用户pcm接口 - Google Patents
一种和数字程控交换机互联的用户pcm接口 Download PDFInfo
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- CN1073769C CN1073769C CN98105308A CN98105308A CN1073769C CN 1073769 C CN1073769 C CN 1073769C CN 98105308 A CN98105308 A CN 98105308A CN 98105308 A CN98105308 A CN 98105308A CN 1073769 C CN1073769 C CN 1073769C
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN98105308A CN1073769C (zh) | 1998-02-18 | 1998-02-18 | 一种和数字程控交换机互联的用户pcm接口 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN98105308A CN1073769C (zh) | 1998-02-18 | 1998-02-18 | 一种和数字程控交换机互联的用户pcm接口 |
Publications (2)
Publication Number | Publication Date |
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CN1226771A CN1226771A (zh) | 1999-08-25 |
CN1073769C true CN1073769C (zh) | 2001-10-24 |
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Application Number | Title | Priority Date | Filing Date |
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CN98105308A Expired - Lifetime CN1073769C (zh) | 1998-02-18 | 1998-02-18 | 一种和数字程控交换机互联的用户pcm接口 |
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CN (1) | CN1073769C (zh) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4860281A (en) * | 1988-02-29 | 1989-08-22 | Motorola, Inc. | Individual subchannel loopback in the PCM interfaces of a digital telephone exchange with control of the outbound path |
US5034978A (en) * | 1989-12-15 | 1991-07-23 | Xel Communications, Inc. | Universal channel unit switchable between two wire and four wire configurations |
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1998
- 1998-02-18 CN CN98105308A patent/CN1073769C/zh not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4860281A (en) * | 1988-02-29 | 1989-08-22 | Motorola, Inc. | Individual subchannel loopback in the PCM interfaces of a digital telephone exchange with control of the outbound path |
US5034978A (en) * | 1989-12-15 | 1991-07-23 | Xel Communications, Inc. | Universal channel unit switchable between two wire and four wire configurations |
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Publication number | Publication date |
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CN1226771A (zh) | 1999-08-25 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: BELL CO.,LTD., SHANGHAI Free format text: FORMER NAME: BELL TELEPHONE EQUIPMENT CO., LTD., SHANGHAI Owner name: BEIER AERKATE CO., LTD., SHANGHAI Free format text: FORMER NAME: BELL CO.,LTD., SHANGHAI Owner name: SHANGHAI ALCATEL-LUCENT CO., LTD. Free format text: FORMER NAME: BEIER AERKATE CO., LTD., SHANGHAI |
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CP01 | Change in the name or title of a patent holder |
Address after: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee after: ALCATEL-LUCENT SHANGHAI BELL Co.,Ltd. Address before: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee before: Shanghai Bell Alcatel Co.,Ltd. Address after: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee after: Shanghai Bell Alcatel Co.,Ltd. Address before: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee before: Shanghai Bell Co.,Ltd. Address after: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee after: Shanghai Bell Co.,Ltd. Address before: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee before: SHANGHAI BELL TELEPHONE EQUIPM |
|
CP01 | Change in the name or title of a patent holder |
Address after: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee after: NOKIA SHANGHAI BELL Co.,Ltd. Address before: 201206 No. 188-189 Baer Road, Jinqiao, Shanghai, Pudong Patentee before: ALCATEL-LUCENT SHANGHAI BELL Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
CX01 | Expiry of patent term |
Granted publication date: 20011024 |
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CX01 | Expiry of patent term |