CA1031038A - Radio-telephone data receiver and transmission system - Google Patents
Radio-telephone data receiver and transmission systemInfo
- Publication number
- CA1031038A CA1031038A CA202,627A CA202627A CA1031038A CA 1031038 A CA1031038 A CA 1031038A CA 202627 A CA202627 A CA 202627A CA 1031038 A CA1031038 A CA 1031038A
- Authority
- CA
- Canada
- Prior art keywords
- radio
- transmission system
- data receiver
- telephone data
- telephone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU70124/74A AU483284B2 (en) | 1974-06-14 | 1974-06-14 | A communication system for receiving computerized data orthe like |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1031038A true CA1031038A (en) | 1978-05-09 |
Family
ID=3753444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA202,627A Expired CA1031038A (en) | 1974-06-14 | 1974-06-17 | Radio-telephone data receiver and transmission system |
Country Status (9)
Country | Link |
---|---|
AU (1) | AU483284B2 (en) |
BE (1) | BE817448A (en) |
CA (1) | CA1031038A (en) |
CH (1) | CH572684A5 (en) |
DE (1) | DE2432945C2 (en) |
FR (1) | FR2283599A1 (en) |
GB (1) | GB1471318A (en) |
NL (1) | NL187043C (en) |
SE (1) | SE382296B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539707A (en) * | 1982-06-01 | 1985-09-03 | Aerotron, Inc. | Compressed single side band communications system and method |
IE58852B1 (en) * | 1985-12-04 | 1993-11-17 | Smith Philip | A security device for a telephone instrument |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1462279A (en) * | 1965-09-21 | 1966-04-15 | Cit Alcatel | Random carrier frequency radio links |
FR1552870A (en) * | 1967-08-11 | 1969-01-10 | ||
US3623106A (en) * | 1969-07-03 | 1971-11-23 | Motorola Inc | Multifrequency receiver employing tone-coded squelch with automatic channel selection |
FR2069778A5 (en) * | 1970-02-09 | 1971-09-03 | Siemens Spa Italiana | |
US3818481A (en) * | 1972-08-14 | 1974-06-18 | Codata Corp | Multiple address direct coupled communication and control current carrier system |
DD105363A1 (en) * | 1973-08-02 | 1974-04-12 |
-
1974
- 1974-06-14 AU AU70124/74A patent/AU483284B2/en not_active Expired
- 1974-06-14 GB GB2647174A patent/GB1471318A/en not_active Expired
- 1974-06-17 SE SE7407979-9A patent/SE382296B/en not_active IP Right Cessation
- 1974-06-17 CA CA202,627A patent/CA1031038A/en not_active Expired
- 1974-06-25 NL NLAANVRAGE7408553,A patent/NL187043C/en not_active IP Right Cessation
- 1974-06-26 CH CH878674A patent/CH572684A5/xx not_active IP Right Cessation
- 1974-07-09 BE BE146386A patent/BE817448A/en unknown
- 1974-07-09 DE DE2432945A patent/DE2432945C2/en not_active Expired
- 1974-07-10 FR FR7423978A patent/FR2283599A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2283599B1 (en) | 1980-11-07 |
FR2283599A1 (en) | 1976-03-26 |
DE2432945A1 (en) | 1976-02-12 |
SE7407979L (en) | 1975-12-18 |
NL7408553A (en) | 1975-12-30 |
BE817448A (en) | 1974-11-04 |
AU483284B2 (en) | 1975-12-18 |
NL187043B (en) | 1990-12-03 |
CH572684A5 (en) | 1976-02-13 |
SE382296B (en) | 1976-01-19 |
NL187043C (en) | 1991-05-01 |
AU7012474A (en) | 1975-12-18 |
DE2432945C2 (en) | 1986-06-19 |
GB1471318A (en) | 1977-04-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |
Effective date: 19950509 |