IT1139563B - Demodulatore per segnali modulati a differenza di fase - Google Patents
Demodulatore per segnali modulati a differenza di faseInfo
- Publication number
- IT1139563B IT1139563B IT24722/81A IT2472281A IT1139563B IT 1139563 B IT1139563 B IT 1139563B IT 24722/81 A IT24722/81 A IT 24722/81A IT 2472281 A IT2472281 A IT 2472281A IT 1139563 B IT1139563 B IT 1139563B
- Authority
- IT
- Italy
- Prior art keywords
- demodulator
- phase difference
- modulated signals
- difference modulated
- signals
- Prior art date
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
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2331—Demodulator circuits; Receiver circuits using non-coherent demodulation wherein the received signal is demodulated using one or more delayed versions of itself
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
- H03D9/02—Demodulation using distributed inductance and capacitance, e.g. in feeder lines
- H03D9/04—Demodulation using distributed inductance and capacitance, e.g. in feeder lines for angle-modulated oscillations
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3040506A DE3040506C2 (de) | 1980-10-28 | 1980-10-28 | Demodulator für phasendifferenzmodulierte Signale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8124722A0 IT8124722A0 (it) | 1981-10-27 |
| IT1139563B true IT1139563B (it) | 1986-09-24 |
Family
ID=6115310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT24722/81A IT1139563B (it) | 1980-10-28 | 1981-10-27 | Demodulatore per segnali modulati a differenza di fase |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4471313A (it) |
| JP (1) | JPS57127305A (it) |
| DE (1) | DE3040506C2 (it) |
| IT (1) | IT1139563B (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3483681D1 (de) * | 1983-11-24 | 1991-01-10 | Ant Nachrichtentech | Mikrowellen-gegentaktfrequenzumsetzer. |
| JPH01105610A (ja) * | 1987-10-19 | 1989-04-24 | Nec Corp | 弾性表面波装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3320540A (en) * | 1964-07-27 | 1967-05-16 | Fujitsu Ltd | Fm demodulator of distributed constant delay line type |
| US3480869A (en) * | 1966-12-27 | 1969-11-25 | Bell Telephone Labor Inc | Timing recovery circuit for use in frequency-modulated,differentially coherent phase modulation (fm-dpm) communication system |
| US3881157A (en) * | 1974-03-28 | 1975-04-29 | Us Air Force | Two-coupler microwave frequency discriminator with internal adjustable delay line |
| US4281293A (en) * | 1979-06-22 | 1981-07-28 | Communications Satellite Corporation | Planar QPSK demodulator |
-
1980
- 1980-10-28 DE DE3040506A patent/DE3040506C2/de not_active Expired
-
1981
- 1981-10-23 JP JP56168871A patent/JPS57127305A/ja active Granted
- 1981-10-27 US US06/315,642 patent/US4471313A/en not_active Expired - Fee Related
- 1981-10-27 IT IT24722/81A patent/IT1139563B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57127305A (en) | 1982-08-07 |
| IT8124722A0 (it) | 1981-10-27 |
| JPH0136749B2 (it) | 1989-08-02 |
| DE3040506A1 (de) | 1982-05-06 |
| DE3040506C2 (de) | 1984-09-27 |
| US4471313A (en) | 1984-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19941027 |