FR2283599A1 - DUPLEXER RADIOTELEPHONE DEVICE - Google Patents

DUPLEXER RADIOTELEPHONE DEVICE

Info

Publication number
FR2283599A1
FR2283599A1 FR7423978A FR7423978A FR2283599A1 FR 2283599 A1 FR2283599 A1 FR 2283599A1 FR 7423978 A FR7423978 A FR 7423978A FR 7423978 A FR7423978 A FR 7423978A FR 2283599 A1 FR2283599 A1 FR 2283599A1
Authority
FR
France
Prior art keywords
duplexer
radiotelephone device
radiotelephone
duplexer radiotelephone
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.)
Granted
Application number
FR7423978A
Other languages
French (fr)
Other versions
FR2283599B1 (en
Inventor
Roger D Blouch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Inc
International Mobile Machines Corp
Original Assignee
InterDigital Inc
International Mobile Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by InterDigital Inc, International Mobile Machines Corp filed Critical InterDigital Inc
Publication of FR2283599A1 publication Critical patent/FR2283599A1/en
Application granted granted Critical
Publication of FR2283599B1 publication Critical patent/FR2283599B1/fr
Granted legal-status Critical Current

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)
FR7423978A 1974-06-14 1974-07-10 DUPLEXER RADIOTELEPHONE DEVICE Granted FR2283599A1 (en)

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 (2)

Publication Number Publication Date
FR2283599A1 true FR2283599A1 (en) 1976-03-26
FR2283599B1 FR2283599B1 (en) 1980-11-07

Family

ID=3753444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423978A Granted FR2283599A1 (en) 1974-06-14 1974-07-10 DUPLEXER RADIOTELEPHONE DEVICE

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2283599B1 (en) 1980-11-07
DE2432945A1 (en) 1976-02-12
CA1031038A (en) 1978-05-09
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
ST Notification of lapse