DE2457131C3 - Verfahren bzw. Einrichtung zur Mehrkanal-Informationsübertragung - Google Patents
Verfahren bzw. Einrichtung zur Mehrkanal-InformationsübertragungInfo
- Publication number
- DE2457131C3 DE2457131C3 DE2457131A DE2457131A DE2457131C3 DE 2457131 C3 DE2457131 C3 DE 2457131C3 DE 2457131 A DE2457131 A DE 2457131A DE 2457131 A DE2457131 A DE 2457131A DE 2457131 C3 DE2457131 C3 DE 2457131C3
- Authority
- DE
- Germany
- Prior art keywords
- signals
- phase
- signal
- modulation
- signal type
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 11
- 238000001228 spectrum Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 230000010363 phase shift Effects 0.000 description 22
- 238000012545 processing Methods 0.000 description 10
- 230000010355 oscillation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J9/00—Multiplex systems in which each channel is represented by a different type of modulation of the carrier
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/421,013 US3939407A (en) | 1973-12-03 | 1973-12-03 | Plural channel communications system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2457131A1 DE2457131A1 (de) | 1975-06-12 |
| DE2457131B2 DE2457131B2 (de) | 1980-03-27 |
| DE2457131C3 true DE2457131C3 (de) | 1980-11-13 |
Family
ID=23668827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2457131A Expired DE2457131C3 (de) | 1973-12-03 | 1974-12-03 | Verfahren bzw. Einrichtung zur Mehrkanal-Informationsübertragung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3939407A (enExample) |
| JP (1) | JPS5087518A (enExample) |
| CA (1) | CA1026878A (enExample) |
| DE (1) | DE2457131C3 (enExample) |
| GB (1) | GB1450350A (enExample) |
| IT (1) | IT1023232B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS587946A (ja) * | 1981-07-07 | 1983-01-17 | Nec Corp | 時分割多方向多重通信網における打合せ電話信号伝送方式 |
| CA1275515C (en) * | 1986-05-19 | 1990-10-23 | Hideaki Itoh | System for transmitting auxiliary signal in a multiplex communication system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3160812A (en) * | 1961-11-09 | 1964-12-08 | Scantlin Electronics Inc | Composite transmission system utilizing phase shift and amplitude modulation |
| US3427543A (en) * | 1964-05-29 | 1969-02-11 | Tokyo Shibaura Electric Co | Television fm sound broadcasting with high frequency deviation in st link |
| JPS5237183B2 (enExample) * | 1971-09-13 | 1977-09-20 | ||
| US3773979A (en) * | 1972-03-30 | 1973-11-20 | Digital Com Inc | Multiplexed video and subcarrier microwave communications system |
-
1973
- 1973-12-03 US US05/421,013 patent/US3939407A/en not_active Expired - Lifetime
-
1974
- 1974-10-22 CA CA212,013A patent/CA1026878A/en not_active Expired
- 1974-11-04 GB GB4763674A patent/GB1450350A/en not_active Expired
- 1974-11-12 IT IT54012/74A patent/IT1023232B/it active
- 1974-12-03 JP JP49139420A patent/JPS5087518A/ja active Pending
- 1974-12-03 DE DE2457131A patent/DE2457131C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1450350A (en) | 1976-09-22 |
| DE2457131B2 (de) | 1980-03-27 |
| CA1026878A (en) | 1978-02-21 |
| US3939407A (en) | 1976-02-17 |
| IT1023232B (it) | 1978-05-10 |
| JPS5087518A (enExample) | 1975-07-14 |
| DE2457131A1 (de) | 1975-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |