CN1043941C - 阻抗透明的接口电路 - Google Patents
阻抗透明的接口电路 Download PDFInfo
- Publication number
- CN1043941C CN1043941C CN94113877A CN94113877A CN1043941C CN 1043941 C CN1043941 C CN 1043941C CN 94113877 A CN94113877 A CN 94113877A CN 94113877 A CN94113877 A CN 94113877A CN 1043941 C CN1043941 C CN 1043941C
- Authority
- CN
- China
- Prior art keywords
- circuit
- input
- interface
- impedance
- aforementioned
- 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
Links
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 34
- 239000004289 sodium hydrogen sulphite Substances 0.000 claims description 16
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulphite Substances [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 15
- 239000004300 potassium benzoate Substances 0.000 claims description 10
- 239000004299 sodium benzoate Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 description 27
- 238000003199 nucleic acid amplification method Methods 0.000 description 10
- 238000000926 separation method Methods 0.000 description 10
- 230000003321 amplification Effects 0.000 description 9
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010079 rubber tapping Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4333005A DE4333005C1 (de) | 1993-09-28 | 1993-09-28 | Impedanztransparente Schnittstellenschaltung |
| DEP4333005.3 | 1993-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1112755A CN1112755A (zh) | 1995-11-29 |
| CN1043941C true CN1043941C (zh) | 1999-06-30 |
Family
ID=6498849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94113877A Expired - Fee Related CN1043941C (zh) | 1993-09-28 | 1994-09-28 | 阻抗透明的接口电路 |
Country Status (7)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19724478C1 (de) * | 1997-06-04 | 1999-03-25 | Krone Ag | Schnittstellenmodul |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992020151A1 (de) * | 1991-04-30 | 1992-11-12 | SIEMENS AKTIENGESELLSCHAFT öSTERREICH | Schnittstellenschaltung für fernsprechvermittlungsanlagen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH595724A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1975-06-18 | 1978-02-28 | Siemens Ag Albis |
-
1993
- 1993-09-28 DE DE4333005A patent/DE4333005C1/de not_active Expired - Fee Related
-
1994
- 1994-09-21 ES ES94114866T patent/ES2136144T3/es not_active Expired - Lifetime
- 1994-09-21 EP EP94114866A patent/EP0645897B1/de not_active Expired - Lifetime
- 1994-09-23 TW TW083108809A patent/TW259915B/zh active
- 1994-09-27 ZA ZA947517A patent/ZA947517B/xx unknown
- 1994-09-27 BR BR9403872A patent/BR9403872A/pt not_active IP Right Cessation
- 1994-09-28 CN CN94113877A patent/CN1043941C/zh not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992020151A1 (de) * | 1991-04-30 | 1992-11-12 | SIEMENS AKTIENGESELLSCHAFT öSTERREICH | Schnittstellenschaltung für fernsprechvermittlungsanlagen |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0645897B1 (de) | 1999-07-21 |
| DE4333005C1 (de) | 1995-03-30 |
| BR9403872A (pt) | 1995-05-30 |
| CN1112755A (zh) | 1995-11-29 |
| EP0645897A3 (de) | 1996-12-18 |
| ES2136144T3 (es) | 1999-11-16 |
| ZA947517B (en) | 1995-05-30 |
| TW259915B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1995-10-11 |
| EP0645897A2 (de) | 1995-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |