JPS5413715A - Four-wire switching system - Google Patents
Four-wire switching systemInfo
- Publication number
- JPS5413715A JPS5413715A JP7884577A JP7884577A JPS5413715A JP S5413715 A JPS5413715 A JP S5413715A JP 7884577 A JP7884577 A JP 7884577A JP 7884577 A JP7884577 A JP 7884577A JP S5413715 A JPS5413715 A JP S5413715A
- Authority
- JP
- Japan
- Prior art keywords
- switching system
- wire switching
- switch frame
- wire switch
- wire
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Abstract
PURPOSE:To economize a four-wire switch frame by composing a hybrid transformer of single-input amplifiers and differential amplifiers, by making the switching by a two-wire switch frame.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7884577A JPS5413715A (en) | 1977-07-01 | 1977-07-01 | Four-wire switching system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7884577A JPS5413715A (en) | 1977-07-01 | 1977-07-01 | Four-wire switching system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5413715A true JPS5413715A (en) | 1979-02-01 |
Family
ID=13673153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7884577A Pending JPS5413715A (en) | 1977-07-01 | 1977-07-01 | Four-wire switching system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5413715A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0722377U (en) * | 1993-09-30 | 1995-04-21 | 佐太巳 服部 | Portable cooler |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3700831A (en) * | 1970-01-13 | 1972-10-24 | Philips Corp | Hybrid circuit |
US3849609A (en) * | 1972-06-15 | 1974-11-19 | Philips Corp | Hybrid circuit |
JPS5186904A (en) * | 1974-12-23 | 1976-07-30 | Ibm | KANYUSHAKAISENINTAAFUEISUKAIRO |
-
1977
- 1977-07-01 JP JP7884577A patent/JPS5413715A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3700831A (en) * | 1970-01-13 | 1972-10-24 | Philips Corp | Hybrid circuit |
US3849609A (en) * | 1972-06-15 | 1974-11-19 | Philips Corp | Hybrid circuit |
JPS5186904A (en) * | 1974-12-23 | 1976-07-30 | Ibm | KANYUSHAKAISENINTAAFUEISUKAIRO |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0722377U (en) * | 1993-09-30 | 1995-04-21 | 佐太巳 服部 | Portable cooler |
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