FR2235554A1 - - Google Patents
Info
- Publication number
- FR2235554A1 FR2235554A1 FR7417401A FR7417401A FR2235554A1 FR 2235554 A1 FR2235554 A1 FR 2235554A1 FR 7417401 A FR7417401 A FR 7417401A FR 7417401 A FR7417401 A FR 7417401A FR 2235554 A1 FR2235554 A1 FR 2235554A1
- Authority
- FR
- France
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
- H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals
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 |
|---|---|---|---|
| DE19732333253 DE2333253A1 (de) | 1973-06-29 | 1973-06-29 | Modulator zum erzeugen von frequenzmodulierten signalen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2235554A1 true FR2235554A1 (xx) | 1975-01-24 |
| FR2235554B1 FR2235554B1 (xx) | 1977-03-11 |
Family
ID=5885534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7417401A Expired FR2235554B1 (xx) | 1973-06-29 | 1974-05-20 |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE817046A (xx) |
| CH (1) | CH571295A5 (xx) |
| DE (1) | DE2333253A1 (xx) |
| DK (1) | DK335174A (xx) |
| FR (1) | FR2235554B1 (xx) |
| GB (1) | GB1454924A (xx) |
| IT (1) | IT1015490B (xx) |
| NL (1) | NL7408531A (xx) |
| SE (1) | SE7408490L (xx) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3417332A (en) * | 1965-02-11 | 1968-12-17 | Nasa | Frequency shift keying apparatus |
| US3663754A (en) * | 1970-05-18 | 1972-05-16 | Totuus Communications Inc | Communication system having modulator for generating orthogonal continuous phase synchronous binary fsk |
-
1973
- 1973-06-29 DE DE19732333253 patent/DE2333253A1/de active Pending
-
1974
- 1974-05-20 FR FR7417401A patent/FR2235554B1/fr not_active Expired
- 1974-06-11 CH CH792874A patent/CH571295A5/xx not_active IP Right Cessation
- 1974-06-21 DK DK335174A patent/DK335174A/da unknown
- 1974-06-24 GB GB2787174A patent/GB1454924A/en not_active Expired
- 1974-06-25 NL NL7408531A patent/NL7408531A/xx unknown
- 1974-06-27 SE SE7408490A patent/SE7408490L/ not_active Application Discontinuation
- 1974-06-28 IT IT2453074A patent/IT1015490B/it active
- 1974-06-28 BE BE146044A patent/BE817046A/xx unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3417332A (en) * | 1965-02-11 | 1968-12-17 | Nasa | Frequency shift keying apparatus |
| US3663754A (en) * | 1970-05-18 | 1972-05-16 | Totuus Communications Inc | Communication system having modulator for generating orthogonal continuous phase synchronous binary fsk |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1454924A (en) | 1976-11-10 |
| NL7408531A (xx) | 1974-12-31 |
| FR2235554B1 (xx) | 1977-03-11 |
| DK335174A (xx) | 1975-03-24 |
| IT1015490B (it) | 1977-05-10 |
| DE2333253A1 (de) | 1975-01-23 |
| SE7408490L (xx) | 1974-12-30 |
| CH571295A5 (xx) | 1975-12-31 |
| BE817046A (fr) | 1974-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |