IT1016130B - Perfezionamenti in o relativi a mo dulatori - Google Patents
Perfezionamenti in o relativi a mo dulatoriInfo
- Publication number
- IT1016130B IT1016130B IT51659/74A IT5165974A IT1016130B IT 1016130 B IT1016130 B IT 1016130B IT 51659/74 A IT51659/74 A IT 51659/74A IT 5165974 A IT5165974 A IT 5165974A IT 1016130 B IT1016130 B IT 1016130B
- Authority
- IT
- Italy
- Prior art keywords
- modulators
- relating
- 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
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00372884A US3832637A (en) | 1973-06-22 | 1973-06-22 | Fsk modem |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1016130B true IT1016130B (it) | 1977-05-30 |
Family
ID=23470015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT51659/74A IT1016130B (it) | 1973-06-22 | 1974-06-21 | Perfezionamenti in o relativi a mo dulatori |
Country Status (5)
Country | Link |
---|---|
US (1) | US3832637A (it) |
JP (1) | JPS5049970A (it) |
CA (1) | CA1017817A (it) |
DE (1) | DE2429821A1 (it) |
IT (1) | IT1016130B (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4336613A (en) * | 1977-06-30 | 1982-06-22 | Texas Instruments Incorporated | Charge coupled device filters and modems incorporating such filters |
US4229827A (en) * | 1979-02-26 | 1980-10-21 | Honeywell Inc. | Single voltage controlled oscillator modem |
US4302629A (en) * | 1979-03-14 | 1981-11-24 | Teltone Corporation | Digital data transmission system |
US4330687A (en) * | 1979-03-14 | 1982-05-18 | Teltone Corporation | Audio and full duplex digital data carrier system |
US4388690A (en) * | 1979-10-11 | 1983-06-14 | Ael Microtel Limited | Automatic meter reading transponder |
US4481642A (en) * | 1981-06-02 | 1984-11-06 | Texas Instruments Incorporated | Integrated circuit FSK modem |
US4431867A (en) * | 1981-06-15 | 1984-02-14 | Hayes Microcomputer Products, Inc. | Modem with low part count and improved demodulator |
US4510611A (en) * | 1982-11-19 | 1985-04-09 | General Electric Company | Transceiver circuit for interfacing between a power line communication system and a data processor |
US6757764B2 (en) * | 2001-04-18 | 2004-06-29 | Hewlett-Packard Development Company, L.P. | Method and apparatus for transferring information using a constant frequency |
JP4739965B2 (ja) * | 2006-01-20 | 2011-08-03 | パナソニック電工株式会社 | 防水スイッチ |
US9048784B2 (en) * | 2007-04-03 | 2015-06-02 | General Motors Llc | Method for data communication via a voice channel of a wireless communication network using continuous signal modulation |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3614624A (en) * | 1969-04-01 | 1971-10-19 | Ncr Co | Device for translating binary data to a jitter-controlled asynchronous frequency modulated signal |
US3713017A (en) * | 1971-10-13 | 1973-01-23 | Collins Radio Co | Frequency shift keyed apparatus |
US3715496A (en) * | 1971-10-21 | 1973-02-06 | Ibm | Digital band-pass filter for a single circuit full duplex transmission system |
-
1973
- 1973-06-22 US US00372884A patent/US3832637A/en not_active Expired - Lifetime
-
1974
- 1974-03-11 CA CA194,597A patent/CA1017817A/en not_active Expired
- 1974-06-21 JP JP49070356A patent/JPS5049970A/ja active Pending
- 1974-06-21 IT IT51659/74A patent/IT1016130B/it active
- 1974-06-21 DE DE2429821A patent/DE2429821A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5049970A (it) | 1975-05-06 |
US3832637A (en) | 1974-08-27 |
DE2429821A1 (de) | 1975-01-23 |
CA1017817A (en) | 1977-09-20 |
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