IE37872L - Digital equipment for forming a frequency multiplex system - Google Patents
Digital equipment for forming a frequency multiplex systemInfo
- Publication number
- IE37872L IE37872L IE731110A IE111073A IE37872L IE 37872 L IE37872 L IE 37872L IE 731110 A IE731110 A IE 731110A IE 111073 A IE111073 A IE 111073A IE 37872 L IE37872 L IE 37872L
- Authority
- IE
- Ireland
- Prior art keywords
- forming
- digital equipment
- multiplex system
- frequency multiplex
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
- H04J1/05—Frequency-transposition arrangements using digital techniques
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Time-Division Multiplex Systems (AREA)
- Analogue/Digital Conversion (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7224032A FR2191826A5 (en) | 1972-07-03 | 1972-07-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE37872L true IE37872L (en) | 1974-01-03 |
IE37872B1 IE37872B1 (en) | 1977-11-09 |
Family
ID=9101270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE1110/73A IE37872B1 (en) | 1972-07-03 | 1973-07-03 | Digital equipment for forming a frequency multiplex syste |
Country Status (9)
Country | Link |
---|---|
US (1) | US3875340A (en) |
BE (1) | BE801780A (en) |
DE (1) | DE2333870A1 (en) |
FR (1) | FR2191826A5 (en) |
GB (1) | GB1437205A (en) |
IE (1) | IE37872B1 (en) |
IT (1) | IT991652B (en) |
LU (1) | LU67901A1 (en) |
NL (1) | NL7309282A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4086536A (en) * | 1975-06-24 | 1978-04-25 | Honeywell Inc. | Single sideband transmitter apparatus |
US4001510A (en) * | 1975-07-07 | 1977-01-04 | Motorola, Inc. | Digital modulator and demodulator system for fdm telephony |
US4316282A (en) * | 1979-11-23 | 1982-02-16 | Rca Corporation | Multichannel frequency translation of sampled waveforms by decimation and interpolation |
DE3120445A1 (en) * | 1981-05-22 | 1983-05-26 | AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang | METHOD FOR FREQUENCY EXCHANGE OF SUB BANDS |
JPS6259432A (en) * | 1985-09-10 | 1987-03-16 | Nec Corp | Fdm/tdm mutual conversion system |
DE3626862A1 (en) * | 1986-08-08 | 1988-02-11 | Philips Patentverwaltung | MULTI-STAGE TRANSMITTER ANTENNA COUPLING DEVICE |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3676598A (en) * | 1970-06-08 | 1972-07-11 | Bell Telephone Labor Inc | Frequency division multiplex single-sideband modulation system |
-
1972
- 1972-07-03 FR FR7224032A patent/FR2191826A5/fr not_active Expired
-
1973
- 1973-06-29 LU LU67901A patent/LU67901A1/xx unknown
- 1973-07-02 BE BE1005208A patent/BE801780A/en unknown
- 1973-07-02 IT IT68956/73A patent/IT991652B/en active
- 1973-07-03 NL NL7309282A patent/NL7309282A/xx not_active Application Discontinuation
- 1973-07-03 DE DE19732333870 patent/DE2333870A1/en active Pending
- 1973-07-03 US US376169A patent/US3875340A/en not_active Expired - Lifetime
- 1973-07-03 IE IE1110/73A patent/IE37872B1/en unknown
- 1973-07-03 GB GB3175373A patent/GB1437205A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1437205A (en) | 1976-05-26 |
LU67901A1 (en) | 1974-01-03 |
NL7309282A (en) | 1974-01-07 |
DE2333870A1 (en) | 1974-01-17 |
FR2191826A5 (en) | 1974-02-01 |
US3875340A (en) | 1975-04-01 |
IT991652B (en) | 1975-08-30 |
BE801780A (en) | 1974-01-02 |
IE37872B1 (en) | 1977-11-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1028072A (en) | Time multiplex telecommunication method | |
CA1026473A (en) | Time division multiplex system | |
AU482164B2 (en) | TIME DIVISION MULTIPLEXED Specification DIGITAL SWITCHING APPARATUS V | |
AU7252574A (en) | Digital multiplexing system | |
IL34234A (en) | Synchronizing system for digital communication equipment | |
CA984957A (en) | Terminal equipment for a synchronized communication system | |
BG30780A3 (en) | Apparatus for digital multiplexion | |
CA1000380A (en) | Synchronizing clock system for a multi-terminal communication apparatus | |
CS183801B2 (en) | Lines trunking equipment | |
IE37872L (en) | Digital equipment for forming a frequency multiplex system | |
AU4914572A (en) | Time division multiplex telecommunications systems | |
ZA746293B (en) | Circuit arrangement for synchronizing a television receiver | |
GB1441028A (en) | Time multiplex digital transmission system | |
ZA743001B (en) | A radio alarm system | |
CA991765A (en) | Pulse-correcting system for a telephone signaling system | |
IE38524B1 (en) | A digital group modulator | |
CA1010581A (en) | Equipment modulator for the formation of a telephone system with multiplex frequencies | |
CA1006617A (en) | Anti-pairing system for a television receiver | |
IL43516A0 (en) | Time division multiplex system | |
GB1374928A (en) | Trunking for services | |
ZA73872B (en) | Apparatus for repeating a dialling signal | |
ZA737683B (en) | Method for varying the frequencies of a communication signal | |
CA1010507A (en) | Squelch circuit for a digital system | |
IE41023B1 (en) | A multiplex system of a digital type | |
IL41648A0 (en) | Method of operating a telecommunication system |