JPS523541B1 - - Google Patents
Info
- Publication number
- JPS523541B1 JPS523541B1 JP45110017A JP11001770A JPS523541B1 JP S523541 B1 JPS523541 B1 JP S523541B1 JP 45110017 A JP45110017 A JP 45110017A JP 11001770 A JP11001770 A JP 11001770A JP S523541 B1 JPS523541 B1 JP S523541B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Complex Calculations (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88412869A | 1969-12-11 | 1969-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS523541B1 true JPS523541B1 (ja) | 1977-01-28 |
Family
ID=25384015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45110017A Pending JPS523541B1 (ja) | 1969-12-11 | 1970-12-11 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3611209A (ja) |
| JP (1) | JPS523541B1 (ja) |
| BE (1) | BE760138A (ja) |
| DE (1) | DE2060376A1 (ja) |
| ES (1) | ES386682A1 (ja) |
| FR (1) | FR2073578A5 (ja) |
| GB (1) | GB1268327A (ja) |
| NL (1) | NL7018049A (ja) |
| SE (1) | SE367110B (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697892A (en) * | 1971-02-19 | 1972-10-10 | Bell Telephone Labor Inc | Digital frequency-shift modulator using a read-only-memory |
| US3958191A (en) * | 1974-11-21 | 1976-05-18 | International Business Machines Corporation | Multi-line, multi-mode modulator using bandwidth reduction for digital fsk and dpsk modulation |
| ATE180911T1 (de) * | 1991-07-11 | 1999-06-15 | United Parcel Service Inc | System und verfahren zur erfassung eines optischen zieles |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2817017A (en) * | 1955-08-12 | 1957-12-17 | Orville C Hall | Frequency shift keyed oscillators |
| US3199028A (en) * | 1962-08-06 | 1965-08-03 | Collins Radio Co | Dual feedback direct frequency modulation system |
| US3454718A (en) * | 1966-10-03 | 1969-07-08 | Xerox Corp | Fsk transmitter with transmission of the same number of cycles of each carrier frequency |
| US3508136A (en) * | 1966-12-12 | 1970-04-21 | Ericsson Telefon Ab L M | Apparatus for obtaining a carrier frequency shifting at a constant phase angle in frequency modulation |
-
1969
- 1969-12-11 US US884128A patent/US3611209A/en not_active Expired - Lifetime
-
1970
- 1970-12-03 SE SE16364/70A patent/SE367110B/xx unknown
- 1970-12-08 DE DE19702060376 patent/DE2060376A1/de active Pending
- 1970-12-09 ES ES386682A patent/ES386682A1/es not_active Expired
- 1970-12-10 NL NL7018049A patent/NL7018049A/xx unknown
- 1970-12-10 BE BE760138A patent/BE760138A/xx unknown
- 1970-12-10 GB GB58589/70A patent/GB1268327A/en not_active Expired
- 1970-12-10 FR FR7044596A patent/FR2073578A5/fr not_active Expired
- 1970-12-11 JP JP45110017A patent/JPS523541B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE367110B (ja) | 1974-05-13 |
| NL7018049A (ja) | 1971-06-15 |
| ES386682A1 (es) | 1974-02-01 |
| GB1268327A (en) | 1972-03-29 |
| US3611209A (en) | 1971-10-05 |
| BE760138A (fr) | 1971-05-17 |
| FR2073578A5 (fr) | 1971-10-01 |
| DE2060376A1 (de) | 1971-06-16 |