IT1030154B - Demodulatore per sistemi di comunicazioni - Google Patents
Demodulatore per sistemi di comunicazioniInfo
- Publication number
- IT1030154B IT1030154B IT67396/75A IT6739675A IT1030154B IT 1030154 B IT1030154 B IT 1030154B IT 67396/75 A IT67396/75 A IT 67396/75A IT 6739675 A IT6739675 A IT 6739675A IT 1030154 B IT1030154 B IT 1030154B
- Authority
- IT
- Italy
- Prior art keywords
- demodulator
- communications systems
- communications
- systems
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6958/74A GB1481419A (en) | 1974-02-15 | 1974-02-15 | Phase shift demodulators |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1030154B true IT1030154B (it) | 1979-03-30 |
Family
ID=9823960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67396/75A IT1030154B (it) | 1974-02-15 | 1975-02-14 | Demodulatore per sistemi di comunicazioni |
Country Status (5)
Country | Link |
---|---|
US (1) | US3980962A (it) |
JP (1) | JPS50119560A (it) |
CA (1) | CA1047612A (it) |
GB (1) | GB1481419A (it) |
IT (1) | IT1030154B (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4169286A (en) * | 1978-06-09 | 1979-09-25 | Communications Satellite Corporation | Surface acoustic wave unique word detector and coherent demodulator |
FR2553610B1 (fr) * | 1983-10-12 | 1986-02-07 | Telediffusion Fse | Circuit de reception d'onde modulee tantot en frequence par signal analogique et tantot en phase par signal numerique |
JP2586481B2 (ja) * | 1987-04-20 | 1997-02-26 | 耕司 戸田 | 3値psk通信装置 |
JPS63302648A (ja) * | 1987-06-02 | 1988-12-09 | Koji Toda | 差動位相偏移変調デ−タ信号の復号器 |
JP3338628B2 (ja) * | 1997-04-25 | 2002-10-28 | 和夫 坪内 | 弾性表面波マッチトフィルタ |
JPWO2004111710A1 (ja) * | 2003-06-10 | 2006-07-20 | 日本電信電話株式会社 | 電気光学変調素子 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3678364A (en) * | 1966-09-27 | 1972-07-18 | Zenith Radio Corp | Surface wave devices |
US3582540A (en) * | 1969-04-17 | 1971-06-01 | Zenith Radio Corp | Signal translating apparatus using surface wave acoustic device |
US3626309A (en) * | 1970-01-12 | 1971-12-07 | Zenith Radio Corp | Signal transmission system employing electroacoustic filter |
US3680007A (en) * | 1970-09-30 | 1972-07-25 | Ibm | Surface wave transducer for digital signals |
US3739290A (en) * | 1971-05-05 | 1973-06-12 | Secr Defence | Acoustic surface wave devices |
FR2167405B1 (it) * | 1972-01-14 | 1976-06-11 | Thomson Csf |
-
1974
- 1974-02-15 GB GB6958/74A patent/GB1481419A/en not_active Expired
-
1975
- 1975-02-04 US US05/547,004 patent/US3980962A/en not_active Expired - Lifetime
- 1975-02-13 JP JP50018385A patent/JPS50119560A/ja active Pending
- 1975-02-14 IT IT67396/75A patent/IT1030154B/it active
- 1975-02-14 CA CA220,223A patent/CA1047612A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS50119560A (it) | 1975-09-19 |
CA1047612A (en) | 1979-01-30 |
US3980962A (en) | 1976-09-14 |
GB1481419A (en) | 1977-07-27 |
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