FR2197274A1 - - Google Patents
Info
- Publication number
- FR2197274A1 FR2197274A1 FR7330287A FR7330287A FR2197274A1 FR 2197274 A1 FR2197274 A1 FR 2197274A1 FR 7330287 A FR7330287 A FR 7330287A FR 7330287 A FR7330287 A FR 7330287A FR 2197274 A1 FR2197274 A1 FR 2197274A1
- 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.)
- Withdrawn
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 |
|---|---|---|---|
| US28252172A | 1972-08-21 | 1972-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2197274A1 true FR2197274A1 (en, 2012) | 1974-03-22 |
Family
ID=23081879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7330287A Withdrawn FR2197274A1 (en, 2012) | 1972-08-21 | 1973-08-21 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4987267A (en, 2012) |
| DE (1) | DE2339889A1 (en, 2012) |
| FR (1) | FR2197274A1 (en, 2012) |
| IT (1) | IT993011B (en, 2012) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537002A (en) * | 1978-08-24 | 1980-03-14 | Fujitsu Ltd | Fs modulation system |
| JPS63180294A (ja) * | 1987-01-22 | 1988-07-25 | Man Design Kk | 測定デ−タ送信装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3271588A (en) * | 1963-08-07 | 1966-09-06 | Tele Signal Corp | Digital keyer for converting d. c. binary signals into two different output audio frequencies |
-
1973
- 1973-08-07 DE DE19732339889 patent/DE2339889A1/de active Pending
- 1973-08-17 IT IT2797273A patent/IT993011B/it active
- 1973-08-21 FR FR7330287A patent/FR2197274A1/fr not_active Withdrawn
- 1973-08-21 JP JP9422673A patent/JPS4987267A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3271588A (en) * | 1963-08-07 | 1966-09-06 | Tele Signal Corp | Digital keyer for converting d. c. binary signals into two different output audio frequencies |
Non-Patent Citations (1)
| Title |
|---|
| Revue US: 'IBM Technical Disclosure bulletin', vol. 13, no. 10, mars 1971, pages 2912 - 2913, CROISIER et al.: 'Frequency-Shift Signal Generator' * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4987267A (en, 2012) | 1974-08-21 |
| DE2339889A1 (de) | 1974-03-28 |
| IT993011B (it) | 1975-09-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |