GB1210742A - Device for the transmission of synchronous pulse signals - Google Patents
Device for the transmission of synchronous pulse signalsInfo
- Publication number
- GB1210742A GB1210742A GB4713668A GB4713668A GB1210742A GB 1210742 A GB1210742 A GB 1210742A GB 4713668 A GB4713668 A GB 4713668A GB 4713668 A GB4713668 A GB 4713668A GB 1210742 A GB1210742 A GB 1210742A
- Authority
- GB
- United Kingdom
- Prior art keywords
- modulator
- signals
- frequency
- switch
- contact
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/2057—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases with a separate carrier for each phase state
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6706736A NL6706736A (ja) | 1967-05-13 | 1967-05-13 | |
NL6713667A NL6713667A (ja) | 1967-05-13 | 1967-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1210742A true GB1210742A (en) | 1970-10-28 |
Family
ID=26644191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4713668A Expired GB1210742A (en) | 1967-05-13 | 1968-10-04 | Device for the transmission of synchronous pulse signals |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT289197B (ja) |
CH (1) | CH502031A (ja) |
GB (1) | GB1210742A (ja) |
NL (1) | NL6713667A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2285032A1 (fr) * | 1974-09-12 | 1976-04-09 | Philips Nv | Dispositif de modulation et de filtrage |
FR2476939A1 (fr) * | 1980-02-26 | 1981-08-28 | Thomson Csf | Filtre transversal pour modulateur-demodulateur et modulateur-demodulateur comportant un tel filtre |
EP0649230A1 (fr) * | 1993-10-19 | 1995-04-19 | Telediffusion De France | Modulateur numérique à débit variable et son utilisation en radiodiffusion FM |
EP0853409A2 (en) * | 1997-01-10 | 1998-07-15 | Harris Corporation | Device and method for digital vestigial sideband modulation |
-
1967
- 1967-10-07 NL NL6713667A patent/NL6713667A/xx unknown
-
1968
- 1968-10-04 AT AT968868A patent/AT289197B/de not_active IP Right Cessation
- 1968-10-04 CH CH1485268A patent/CH502031A/de unknown
- 1968-10-04 GB GB4713668A patent/GB1210742A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2285032A1 (fr) * | 1974-09-12 | 1976-04-09 | Philips Nv | Dispositif de modulation et de filtrage |
FR2476939A1 (fr) * | 1980-02-26 | 1981-08-28 | Thomson Csf | Filtre transversal pour modulateur-demodulateur et modulateur-demodulateur comportant un tel filtre |
EP0035432B1 (fr) * | 1980-02-26 | 1983-12-21 | Thomson-Csf | Filtre transversal pour modulateur-démodulateur, et modulateur-démodulateur comportant un tel filtre |
EP0649230A1 (fr) * | 1993-10-19 | 1995-04-19 | Telediffusion De France | Modulateur numérique à débit variable et son utilisation en radiodiffusion FM |
FR2711464A1 (fr) * | 1993-10-19 | 1995-04-28 | Telediffusion Fse | Modulateur numérique à débit variable et son utilisation en radiodiffusion FM. |
US5473290A (en) * | 1993-10-19 | 1995-12-05 | Telediffusion De France | Variable-throughput digital modulator and its use in FM radio broadcasting |
EP0853409A2 (en) * | 1997-01-10 | 1998-07-15 | Harris Corporation | Device and method for digital vestigial sideband modulation |
EP0853409A3 (en) * | 1997-01-10 | 2001-02-07 | Harris Corporation | Device and method for digital vestigial sideband modulation |
Also Published As
Publication number | Publication date |
---|---|
CH502031A (de) | 1971-01-15 |
NL6713667A (ja) | 1969-04-09 |
AT289197B (de) | 1971-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees | ||
PCNP | Patent ceased through non-payment of renewal fee |