GB463938A - Improvements in and relating to wireless communication systems - Google Patents

Improvements in and relating to wireless communication systems

Info

Publication number
GB463938A
GB463938A GB385837A GB385837A GB463938A GB 463938 A GB463938 A GB 463938A GB 385837 A GB385837 A GB 385837A GB 385837 A GB385837 A GB 385837A GB 463938 A GB463938 A GB 463938A
Authority
GB
United Kingdom
Prior art keywords
modulating
circuit
quenching
branch
valve
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
GB385837A
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.)
LAWRENCE LEY KEMPTHORNE HONEYB
Original Assignee
LAWRENCE LEY KEMPTHORNE HONEYB
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 LAWRENCE LEY KEMPTHORNE HONEYB filed Critical LAWRENCE LEY KEMPTHORNE HONEYB
Publication of GB463938A publication Critical patent/GB463938A/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
    • H04B1/3827—Portable transceivers
    • H04B1/385—Transceivers carried on the body, e.g. in helmets
    • 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

Abstract

463,938. Wireless signalling. HONEYBALL, L. L. -K. July 4, 1935, No. 3858/37. Divided out of 462,459. [Class 40 (v)] A two-way wireless transmitter and receiver comprises an oscillating circuit formed by a loop aerial la, 1b; 2a, 2b a valve 6 and condensers 27, 42, modulating potentials being supplied to this circuit for transmission and quenching oscillations for giving super-regenerative reception. One branch of the loop aerial is connected to the anode of the valve 6, the H.T. supply being to the lower end of the branch through a telephone receiver P, or amplifier D. The grid of the valve 6 is connected to the other branch of the loop aerial and the connection from the lower end of the branch includes the secondary of the modulating transformer N. Included in the circuit from the lower ends of the loop is the superregenerative quenching circuit comprising inductances Q1, and Q2 and condensers C1, C2. It is stated that the super-regenerative quenching has little effect on the operation of the arrangement as a transmitter. Instead of having a modulating transformer N, a microphone M may be connected as shown in the place of an automatic biassing resistance: To enable telegraphy to be transmitted additional inductances T1, T2 are included in the quenching circuit and normally short-circuited by mechanically coupled keys K1, K2 ; when these are depressed the additional inductance put in circuit reduces the quenching frequency into the audio range to act as a modulating potential. The arrangement may be made to function as a re-transmitter by coupling the output of the amplifier D back to the modulating transformer N. In a modification, the modulating and receiving circuits are connected through a change-over switch to the aerial oscillator so that one is cut out while the other is operating. Specifications 294,946, [Class 40 (v)], 462,459, and 462,529 are referred to.
GB385837A 1935-07-04 1935-07-04 Improvements in and relating to wireless communication systems Expired GB463938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1909635A GB462459A (en) 1935-07-04 1935-07-04 Improvements in and relating to wireless communication systems

Publications (1)

Publication Number Publication Date
GB463938A true GB463938A (en) 1937-04-05

Family

ID=10123711

Family Applications (3)

Application Number Title Priority Date Filing Date
GB2237A Expired GB462529A (en) 1935-07-04 1935-07-04 Improvements in and relating to wireless communication systems
GB1909635A Expired GB462459A (en) 1935-07-04 1935-07-04 Improvements in and relating to wireless communication systems
GB385837A Expired GB463938A (en) 1935-07-04 1935-07-04 Improvements in and relating to wireless communication systems

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB2237A Expired GB462529A (en) 1935-07-04 1935-07-04 Improvements in and relating to wireless communication systems
GB1909635A Expired GB462459A (en) 1935-07-04 1935-07-04 Improvements in and relating to wireless communication systems

Country Status (1)

Country Link
GB (3) GB462529A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415667A (en) * 1944-02-11 1947-02-11 Hazeltine Research Inc Receiver-transmitting arrangement
US2515213A (en) * 1943-05-20 1950-07-18 Rca Corp Ultra high frequency communication system
US3064194A (en) * 1945-04-10 1962-11-13 Jules H Sreb Radio sonde

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439411A (en) * 1944-07-01 1948-04-13 Motorola Inc Portable two-way wave-signal space-communication set
US2518736A (en) * 1946-08-27 1950-08-15 Hazeltine Research Inc Directive loop antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515213A (en) * 1943-05-20 1950-07-18 Rca Corp Ultra high frequency communication system
US2415667A (en) * 1944-02-11 1947-02-11 Hazeltine Research Inc Receiver-transmitting arrangement
US3064194A (en) * 1945-04-10 1962-11-13 Jules H Sreb Radio sonde

Also Published As

Publication number Publication date
GB462459A (en) 1937-03-04
GB462529A (en) 1937-03-04

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