CH215529A - Portable radio device in which the transmitter and receiver operate alternately. - Google Patents

Portable radio device in which the transmitter and receiver operate alternately.

Info

Publication number
CH215529A
CH215529A CH215529DA CH215529A CH 215529 A CH215529 A CH 215529A CH 215529D A CH215529D A CH 215529DA CH 215529 A CH215529 A CH 215529A
Authority
CH
Switzerland
Prior art keywords
transmitter
radio device
portable radio
operate alternately
receiver operate
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft C Lorenz
Original Assignee
Lorenz C 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 Lorenz C Ag filed Critical Lorenz C Ag
Publication of CH215529A publication Critical patent/CH215529A/en

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)
CH215529D 1939-07-10 1940-07-09 Portable radio device in which the transmitter and receiver operate alternately. CH215529A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH215529A true CH215529A (en) 1941-06-30

Family

ID=5824445

Family Applications (1)

Application Number Title Priority Date Filing Date
CH215529D CH215529A (en) 1939-07-10 1940-07-09 Portable radio device in which the 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
FR868488A (en) 1941-12-31
BE439666A (en)
US2297482A (en) 1942-09-29

Similar Documents

Publication Publication Date Title
US2197278A (en) Screed
CH233992A (en) Electro-acoustic device.
FR868488A (en) Portable radio device, whose transmitter and receiver operate alternately
CH270712A (en) Multiple radio reception system.
CH224081A (en) Receiver with spread spectrum in the shortwave range.
CH237093A (en) Telegraph device.
CH218236A (en) Telegraphic button transmitter for the transmission of impulse series.
SU2634A1 (en) Radio reception device
NL176515C (en) SUPERHETERODYNE RECEIVER.
CH272301A (en) Radio reception device.
CH212536A (en) Radio receiver.
ES145228A1 (en) Radio receiver apparatus.
CH202980A (en) Type printing telegraph receiver with monitoring device.
CH236891A (en) Radio receiver device.
CH212539A (en) Radio receiver.
ES19815Y (en) Multiple inner spine book, expandable.
DK56626C (en) Portable Radio Receiver.
CH275980A (en) Receiver in facsimile.
CH233989A (en) Telegraph device.
ES145285A1 (en) An alarm device, robbery avoider.
DK58168C (en) Radio receiver.
ES147622A1 (en) Improvements in the catapult devices.
AT175983B (en) Portable cooking device for preparing beverages such as coffee, tea or the like.
CH220367A (en) Device for switching over voting means in heavy devices for wireless remote reporting.
ES121449A1 (en) Improvements in radio reception devices.