FR868488A - Portable radio device, whose transmitter and receiver operate alternately - Google Patents

Portable radio device, whose transmitter and receiver operate alternately

Info

Publication number
FR868488A
FR868488A FR868488DA FR868488A FR 868488 A FR868488 A FR 868488A FR 868488D A FR868488D A FR 868488DA FR 868488 A FR868488 A FR 868488A
Authority
FR
France
Prior art keywords
radio device
portable radio
operate alternately
receiver operate
whose transmitter
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
Application number
Other languages
French (fr)
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of FR868488A publication Critical patent/FR868488A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
FR868488D 1939-07-10 1940-12-28 Portable radio device, whose transmitter and receiver operate alternately Expired FR868488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE215529X 1939-07-10

Publications (1)

Publication Number Publication Date
FR868488A true FR868488A (en) 1941-12-31

Family

ID=5824445

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868488D Expired FR868488A (en) 1939-07-10 1940-12-28 Portable radio device, whose transmitter and receiver operate alternately

Country Status (4)

Country Link
US (1) US2297482A (en)
BE (1) BE439666A (en)
CH (1) CH215529A (en)
FR (1) FR868488A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531398A (en) * 1943-02-25 1950-11-28 Farnsworth Res Corp Interference transmission system
US2515213A (en) * 1943-05-20 1950-07-18 Rca Corp Ultra high frequency communication system
FR906914A (en) * 1943-09-10 1946-02-25 Philips Nv Radio-electric transmitter and receiver for simultaneous traffic in both directions

Also Published As

Publication number Publication date
US2297482A (en) 1942-09-29
CH215529A (en) 1941-06-30
BE439666A (en)

Similar Documents

Publication Publication Date Title
CH292838A (en) Radio antenna device.
FR858159A (en) Radio receiver
CH233992A (en) Electro-acoustic device.
FR858202A (en) Radio receiver device
FR868488A (en) Portable radio device, whose transmitter and receiver operate alternately
FR854539A (en) Superheterodyne radio receiver device
FR796786A (en) Transmitter and receiver signaling device with perforation device
CH237093A (en) Telegraph device.
GR9066B (en) PORTABLE TRANSMITTER AND RECEIVER OF WIRELESS TELEPHONE AND TELEPHONE.
FR852489A (en) Telegraph device with grouped transmitter and receiver
CH236891A (en) Radio receiver device.
CH272301A (en) Radio reception device.
FR857582A (en) Radio alignment device
FR850048A (en) Radio receiver device
FR866127A (en) Radio transmitter
FR843680A (en) Radio and phono-electric device
DK56626C (en) Portable Radio Receiver.
CH231158A (en) Radio-electric receiver device.
FR862470A (en) Force transmitter device
FR885192A (en) Tuning device for radio receiver
ES145228A1 (en) Radio receiver apparatus.
FR854928A (en) Silent standby radio device
FR858022A (en) Radio receiver
FR849379A (en) Radio receiver
FR804948A (en) Combined portable, phonographic and radio apparatus