NO133170C - - Google Patents
Info
- Publication number
- NO133170C NO133170C NO1544/73A NO154473A NO133170C NO 133170 C NO133170 C NO 133170C NO 1544/73 A NO1544/73 A NO 1544/73A NO 154473 A NO154473 A NO 154473A NO 133170 C NO133170 C NO 133170C
- Authority
- NO
- Norway
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)
- Dc Digital Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO1544/73A NO133170C (fi) | 1973-04-13 | 1973-04-13 | |
| US436309A US3930121A (en) | 1973-04-13 | 1974-01-24 | Method for converting a binary coded data signal into a P-FSK coded signal |
| ES425145A ES425145A1 (es) | 1973-04-13 | 1974-04-09 | Un metodo para convertir una senal de datos en codigo bina-rio en otra senal en codigo de dos impulsos con la misma po-laridad y otros dos con polaridad opuesta por cada bit. |
| DE2417370A DE2417370A1 (de) | 1973-04-13 | 1974-04-09 | Binaer-codewandler |
| IT21104/74A IT1019604B (it) | 1973-04-13 | 1974-04-10 | Apparato per la conversione di un segnale di dati in codice binario in un segnale in codice p.fsk |
| CH517074A CH574690A5 (fi) | 1973-04-13 | 1974-04-11 | |
| FR7412737A FR2225891B1 (fi) | 1973-04-13 | 1974-04-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO1544/73A NO133170C (fi) | 1973-04-13 | 1973-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO133170B NO133170B (fi) | 1975-12-08 |
| NO133170C true NO133170C (fi) | 1976-03-17 |
Family
ID=19878271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO1544/73A NO133170C (fi) | 1973-04-13 | 1973-04-13 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3930121A (fi) |
| CH (1) | CH574690A5 (fi) |
| DE (1) | DE2417370A1 (fi) |
| ES (1) | ES425145A1 (fi) |
| FR (1) | FR2225891B1 (fi) |
| IT (1) | IT1019604B (fi) |
| NO (1) | NO133170C (fi) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4153876A (en) * | 1977-04-27 | 1979-05-08 | Texas Instruments Incorporated | Charge transfer device radio system |
| FR2399763A1 (fr) * | 1977-08-03 | 1979-03-02 | Trt Telecom Radio Electr | Dispositif numerique pour diviser la frequence d'echantillonnage dans un signal code au moyen de la modulation delta |
| US4156867A (en) * | 1977-09-06 | 1979-05-29 | Motorola, Inc. | Data communication system with random and burst error protection and correction |
| US4307381A (en) * | 1977-11-04 | 1981-12-22 | Discovision Associates | Method and means for encoding and decoding digital data |
| FR2432246A1 (fr) * | 1978-07-26 | 1980-02-22 | Cit Alcatel | Procede et circuit de decodage d'un signal binaire code en cmi |
| US4393501A (en) * | 1981-02-26 | 1983-07-12 | General Electric Company | Line protocol for communication system |
| US4414675A (en) * | 1981-08-05 | 1983-11-08 | Motorola, Inc. | MSK and OK-QPSK signal demodulator |
| US4527275A (en) * | 1982-02-12 | 1985-07-02 | Arinc Research Corporation | Correlation data communications system |
| JPS5954359A (ja) * | 1982-09-22 | 1984-03-29 | Hitachi Ltd | デイジタルデ−タ転送方式 |
| US4528675A (en) * | 1983-08-31 | 1985-07-09 | General Signal Corporation | FSK modem for bidirectional loop communications system |
| US4569060A (en) * | 1983-08-31 | 1986-02-04 | General Signal Corporation | FSK Coding method and apparatus involving multiples and submultiples of a given frequency |
| NL8402319A (nl) * | 1984-07-23 | 1986-02-17 | Philips Nv | Inrichting voor het genereren van een hoekgemoduleerd draaggolfsignaal van constante amplitude in responsie op datasignalen. |
| US4669095A (en) * | 1985-09-27 | 1987-05-26 | Motorola, Inc. | Maximum distance from zero crossing MSK demodulator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3165583A (en) * | 1960-11-21 | 1965-01-12 | Bell Telephone Labor Inc | Two-tone transmission system for digital data |
| US3102238A (en) * | 1961-11-13 | 1963-08-27 | Collins Radio Co | Encoder with one frequency indicating one binary logic state and another frequency indicating other state |
| US3454718A (en) * | 1966-10-03 | 1969-07-08 | Xerox Corp | Fsk transmitter with transmission of the same number of cycles of each carrier frequency |
-
1973
- 1973-04-13 NO NO1544/73A patent/NO133170C/no unknown
-
1974
- 1974-01-24 US US436309A patent/US3930121A/en not_active Expired - Lifetime
- 1974-04-09 DE DE2417370A patent/DE2417370A1/de active Pending
- 1974-04-09 ES ES425145A patent/ES425145A1/es not_active Expired
- 1974-04-10 IT IT21104/74A patent/IT1019604B/it active
- 1974-04-11 CH CH517074A patent/CH574690A5/xx not_active IP Right Cessation
- 1974-04-11 FR FR7412737A patent/FR2225891B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2225891B1 (fi) | 1980-06-27 |
| ES425145A1 (es) | 1976-06-16 |
| NO133170B (fi) | 1975-12-08 |
| IT1019604B (it) | 1977-11-30 |
| US3930121A (en) | 1975-12-30 |
| DE2417370A1 (de) | 1974-10-31 |
| FR2225891A1 (fi) | 1974-11-08 |
| CH574690A5 (fi) | 1976-04-15 |