GB1426078A - Filter arrangements for use in frequency division multiplex equipment - Google Patents
Filter arrangements for use in frequency division multiplex equipmentInfo
- Publication number
- GB1426078A GB1426078A GB1038873A GB1038873A GB1426078A GB 1426078 A GB1426078 A GB 1426078A GB 1038873 A GB1038873 A GB 1038873A GB 1038873 A GB1038873 A GB 1038873A GB 1426078 A GB1426078 A GB 1426078A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filter
- khz
- channel
- filters
- carrier
- 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
- 239000000969 carrier Substances 0.000 abstract 2
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE286872A SE362562B (enExample) | 1972-03-07 | 1972-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1426078A true GB1426078A (en) | 1976-02-25 |
Family
ID=20260886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1038873A Expired GB1426078A (en) | 1972-03-07 | 1973-03-02 | Filter arrangements for use in frequency division multiplex equipment |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE2307049B2 (enExample) |
| GB (1) | GB1426078A (enExample) |
| IT (1) | IT981148B (enExample) |
| NL (1) | NL7302556A (enExample) |
| SE (1) | SE362562B (enExample) |
-
1972
- 1972-03-07 SE SE286872A patent/SE362562B/xx unknown
-
1973
- 1973-02-13 DE DE19732307049 patent/DE2307049B2/de not_active Withdrawn
- 1973-02-23 NL NL7302556A patent/NL7302556A/xx not_active Application Discontinuation
- 1973-03-02 GB GB1038873A patent/GB1426078A/en not_active Expired
- 1973-03-06 IT IT2122873A patent/IT981148B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2307049A1 (de) | 1973-09-13 |
| SE362562B (enExample) | 1973-12-10 |
| IT981148B (it) | 1974-10-10 |
| DE2307049B2 (de) | 1974-09-05 |
| NL7302556A (enExample) | 1973-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2051325A1 (en) | Optical communication system | |
| GB651011A (en) | Improvements in modulation devices particularly for wide frequency bands | |
| ES2115514B1 (es) | Metodo y aparato para identificar canales de señalizacion. | |
| GB1425155A (en) | System for transferring wide-band sound signals | |
| GB1444258A (en) | Telephone systems | |
| GB1426078A (en) | Filter arrangements for use in frequency division multiplex equipment | |
| DE3172701D1 (en) | Digital frequency receiver | |
| GB1373748A (en) | Subaudible remote control tone encoding system | |
| GB1468444A (en) | Multiplexer for telephone channels | |
| GB1091278A (en) | Improvements in or relating to multi-channel single-sideband carrier-frequency communication systems | |
| GB1023699A (en) | Improvements in or relating to pulse multiplexing systems | |
| US2546994A (en) | Multiplex carrier current telephony | |
| GB1448883A (en) | Carrier converting equipment | |
| GB579677A (en) | Electric signal communication system | |
| GB773687A (en) | Improvements in audio-frequency signalling arrangements in multiplex carrier wave telephone systems | |
| GB1465923A (en) | Camouflaged speech signal transmission systems | |
| GB640986A (en) | Improvements in or relating to arrangements for transmitting electric signals occupying a wide frequency band over narrow band circuits | |
| GB1424133A (en) | Transmission of wide-band sound signals | |
| GB554914A (en) | Application of frequency dividers to the reception of signal modulated electric carrier waves | |
| GB754185A (en) | Multiplex frequency modulation transmitter | |
| GB1060173A (en) | Frequency diversity transmitting system | |
| JPS6110376Y2 (enExample) | ||
| SU1017569A1 (ru) | Устройство дл передачи информации с пути на локомотив | |
| GB605396A (en) | Improvements in and relating to short-wave multiple channel telephony and signalling | |
| FR2275079A2 (fr) | Multiplexeur pour voies telephoniques |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |