CH669488A5 - - Google Patents
Download PDFInfo
- Publication number
- CH669488A5 CH669488A5 CH320785A CH320785A CH669488A5 CH 669488 A5 CH669488 A5 CH 669488A5 CH 320785 A CH320785 A CH 320785A CH 320785 A CH320785 A CH 320785A CH 669488 A5 CH669488 A5 CH 669488A5
- Authority
- CH
- Switzerland
- Prior art keywords
- circuit
- output
- modulator
- transmitter
- frequency
- Prior art date
Links
- 230000010355 oscillation Effects 0.000 claims description 18
- 230000010363 phase shift Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 17
- 230000006870 function Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000010354 integration Effects 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 108010076504 Protein Sorting Signals Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
- H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/20—Frequency-division multiplex systems in which at least one carrier is angle-modulated
-
- 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)
- Amplitude Modulation (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT240884A AT387679B (de) | 1984-07-25 | 1984-07-25 | Senderschaltung zur erzeugung frequenzmodulierter signale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH669488A5 true CH669488A5 (enrdf_load_stackoverflow) | 1989-03-15 |
Family
ID=3533804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH320785A CH669488A5 (enrdf_load_stackoverflow) | 1984-07-25 | 1985-07-24 |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT387679B (enrdf_load_stackoverflow) |
| CH (1) | CH669488A5 (enrdf_load_stackoverflow) |
| DE (1) | DE3525174A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826253A1 (de) * | 1998-06-15 | 1999-12-16 | Abb Patent Gmbh | Verfahren zur bandbreiteneffizienten Mehrfrequenz-Datenübertragung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1172974A (en) * | 1965-11-23 | 1969-12-03 | Plessey Co Ltd | Improvements in or relating to Modulation Systems |
| DE2443128A1 (de) * | 1974-09-09 | 1976-03-25 | Siemens Ag | Laserstrahl-koppelanordnung |
| GB2074421B (en) * | 1980-04-16 | 1983-12-07 | Philips Electronic Associated | Frequency modulator circuit arrangement |
-
1984
- 1984-07-25 AT AT240884A patent/AT387679B/de active
-
1985
- 1985-07-15 DE DE19853525174 patent/DE3525174A1/de active Granted
- 1985-07-24 CH CH320785A patent/CH669488A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AT387679B (de) | 1989-02-27 |
| ATA240884A (de) | 1988-07-15 |
| DE3525174C2 (enrdf_load_stackoverflow) | 1990-10-04 |
| DE3525174A1 (de) | 1986-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |