US2006440A - Vacuum tube generator system - Google Patents

Vacuum tube generator system Download PDF

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Publication number
US2006440A
US2006440A US423308A US42330830A US2006440A US 2006440 A US2006440 A US 2006440A US 423308 A US423308 A US 423308A US 42330830 A US42330830 A US 42330830A US 2006440 A US2006440 A US 2006440A
Authority
US
United States
Prior art keywords
circuit
telephonic
modulator
generator
signaling
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 - Lifetime
Application number
US423308A
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English (en)
Inventor
Chireix Henri
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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
Priority to NL20201D priority Critical patent/NL20201C/xx
Priority claimed from US99740A external-priority patent/US1755386A/en
Priority to DES81647D priority patent/DE489942C/de
Application filed by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Priority to US423308A priority patent/US2006440A/en
Application granted granted Critical
Publication of US2006440A publication Critical patent/US2006440A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/20—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to anode

Definitions

  • the present invention relates to improvements in the production of high frequency currents by means of space discharge devices and is a division of my United States Patent Number 1,755,386,
  • My invention applies to systems of communi cation utilizing pure continuous Waves or modulated continuous waves.
  • One of the objects of my invention is toim -f prove the overall efficiency of a communication system by increasing the efiiciency of the trans-' mitter itself and the constancy of the wavetrans mitted.
  • A'second space-discharge device 5 is also con nected so as to draw its plate and filamentfc'urrent from sources I and 2 respectively, said del ice 5 having its anode connected to the anode w of device 3 through a choke coil 4.
  • 3 s ,"Tube 5 through the medium of switch 12 is adapted to either act as a modulator tubeampli' fying signals from a microphone circuit, or as' generator of oscillations.
  • To this end device 5 when switch I2 is in the position I4 has its input and output circuits coupled through the transformer 6 whereby oscillations will be produced at a frequency dependentupon the value of shunted condenser 1.
  • condenser 8 is intended to provide a negative bias for the grid of device 5.
  • switch [2 When switch [2 is in the position l3 device 5 acts as a modulator and amplifier tube the. input. circuit of which comprises a micro phone circuit including microphone l0, battery H, and the primary winding of an 'audiot'ranscircuit'of-device 5.
  • . of'telegraphic signals withmodulated continuput of said modulator circuit and said microformer 9 the secondary of which is in the input Energy may betransmitted through an. an-" tenna system of any desired kindsuch as 24 or utilized in any desired circuit.
  • the utilizing circuit may be coupled to the output circuit of space discharge-device 3 as shown, or in any well known manner.
  • modulator device wherebyusaid modulator oscillates at a frequency lower than the frequency of said high frequency oscillatorwhereby the low frequency potential oscillations generated. by said modulatorpotentials are'algebraically added to the anodeelectrode of said electrone discharge device oscillator whereby the high frequency oscillations in the output circuit, of said high frequency oscillator are modulatedinaccordance with the oscillations generated byrsaid modulator.
  • I H i 5. In a radio system of communication. the combination with an antenna and a circuit hay. ing means therein for generating and impressing upon said antenna awaveformcarrier current; of a telephonic circuit including atelephonic transmitter; a signaling circuit including a thermionic valve individual to said wave form carrier.
  • a radio system ofcommunication the combination with an antenna and a circuit having means therein for-generating and impressing upon said antenna a wave formcarrier current of a transformer secondary winding in the aforesaid circuit; a telephonic circuit including a, telephonic transmitter; a signaling circuit including apri un ty to the aforesaid transformer secondary winding and a thermionic valve serving asv a generator of audio frequency signaling current;
  • V phonic transmitter V phonic transmitter
  • a signaling circuit including means for producing audio frequency Wave form signaling current; and means for disconnecting said audio frequency Wave producing means from said signaling circuit and associating it with said telephonic circuit to serve as a modulator under the control of the telephonic currents, whereby said carrier current circuit may be alternately associated with said telephonic circuit and with said signaling circuit.
  • a radio system of communication the combination with an antenna and a circuit having apparatus therein for generating and im- Dressing upon said antenna a wave form carrier current; of a telephonic circuit including a telephonic transmitter, a signaling circuit including a thermionic valve for producing audio frequency wave form signaling current; and means for disconnecting said thermionic valve from said signaling circuit and associating it with said telephonic circuit to serve as a modulator under the control of the telephonic currents, whereby said carrier current circuit may be associated at will with either said telephonic circuit or with said signaling circuit.
  • a radio system of communication the combination with anantenna and a circuit having means therein for generating and impressing upon said antenna a waveform carrier current; of a telephonic circuit including a telephonic transmitter; a signaling circuit including a thermionic valve individual to said wave form carrier current circuit and serving as a generator of audio frequency signaling current; and means for disconnecting said valve from said signaling circuit and coupling it with said telephonic circuit, to serve as an amplifier of the telephonic currents and to impress such amplified telephonic currents as modulations upon said carrier current circuit,
  • a radio system of communication the combination, with an antenna and a circuit hav- 1118 means therein for generating and impressing upon said antenna a waveform carrier current, of a transformer secondary winding in said, circuit, a telephonic circuit including a telephonic transmitter and a transformer primary winding, a plurality of transformer windings, the first of which is a. primary to said secondary Winding and the s'econ'd of which is a secondary to said primary' winding, a thermionic valve individual to said wave form carrier current circuit, and means operable at will to selectively connect the input of said valve with either of said plurality of transformer windings.
  • a radio system of communication the combination, with an antenna and a circuit having means therein for generating and impressing upon said antenna a wave form carrier current, of a transformer secondary winding in said circuit, a telephonic circuit including'a telephonic transmitter and a transformer primary winding, a plurality of transformer windings, the first of which is a primary to said secondary winding and; the second of which is a secondary to said primary winding, a thcrmionicflvalve individual to said wave form carrier current circuit, and
  • a radio system of communication the combination with a utilization circuit and a generator of high frequency currents for impressing said currents upon said utilization circuit, of a telephonic circuit including a microphone, a thermionic valve serving asa generator of oscillations of lower frequency than said first generator connected in circuit with said first generator, and switching mechanism for connecting said valve to said telephonic circuit for changing the characteristic of said valve from a generator of said relatively lower frequency oscillations to a modulator under control of the telephonic currents.
  • a radio system of communication the combination with a utilization circuit and a generator for generating and impressing upon said utilization circuit high frequency oscillations, of a telephonic circuit including a telephonic transmitter, a signalling circuit including a thermionic valve individual to said generator and serving as a generator of relatively lower frequency currents, and switching mechanism for disconnecting said valve from said signalling circuit and associating it with said telephonic circuit to serve as a modulator under the control of the telephonic currents.
  • a radio system of communication the combination with a utilization circuit and a circuit having means therein for generating and impressing upon said utilization circuit a Wave form carrier current; of a telephonic circuit including a telephonic transmitter; a signaling circuit including a thermionic valve individual to said wave form carrier current circuit and serving as a generator of audio frequency signaling current; and means for disconnecting said valve from said signaling circuit and associating it with said telephonic circuit to serve as a modulator under the control of the telephonic currents.
  • a radio system of communication thecombination with a utilization circuit and a circuit having means therein for generating and impressing upon said utilization circuit a wave form carrier current; of a transformer secondary winding in the aforesaid circuit; a telephonic circuit including a telephonic transmitter; a signaling circuit including a primary to the aforesaid transformer secondary winding and a thermionic valve serving as a generator of audio frequency signaling current; and means for disconnecting said valve from said signaling circuit and associating it with said telephonic circuit to serve as a modulator under the control of the telephonic currents.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Devices For Supply Of Signal Current (AREA)
US423308A 1926-04-05 1930-01-25 Vacuum tube generator system Expired - Lifetime US2006440A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL20201D NL20201C (OSRAM) 1926-04-05
DES81647D DE489942C (de) 1926-04-05 1926-08-10 Schaltung zum wahlweise Aussenden von Tonfrequenz oder modulierten ungedaempften Wellen
US423308A US2006440A (en) 1926-04-05 1930-01-25 Vacuum tube generator system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99740A US1755386A (en) 1925-08-10 1926-04-05 Vacuum-tube generator system
US423308A US2006440A (en) 1926-04-05 1930-01-25 Vacuum tube generator system

Publications (1)

Publication Number Publication Date
US2006440A true US2006440A (en) 1935-07-02

Family

ID=26796434

Family Applications (1)

Application Number Title Priority Date Filing Date
US423308A Expired - Lifetime US2006440A (en) 1926-04-05 1930-01-25 Vacuum tube generator system

Country Status (3)

Country Link
US (1) US2006440A (OSRAM)
DE (1) DE489942C (OSRAM)
NL (1) NL20201C (OSRAM)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421468A (en) * 1944-08-25 1947-06-03 Rca Corp Selective transmitting, receiving, and oscillator circuit
US2439844A (en) * 1943-10-29 1948-04-20 Bendix Aviat Corp Amplifier and oscillator circuit
US2441955A (en) * 1944-04-04 1948-05-25 Standard Telephones Cables Ltd Oscillator modulator
US2453269A (en) * 1945-05-21 1948-11-09 Automatic Elect Lab Printing telegraph system
US2459281A (en) * 1945-01-08 1949-01-18 Rca Corp Two-way radio equipment for lifeboat service
US2515254A (en) * 1946-12-11 1950-07-18 Paul W Nosker Remote-control system
US2585019A (en) * 1945-02-06 1952-02-12 Int Standard Electric Corp Voice frequency signaling circuit
US2991357A (en) * 1959-08-31 1961-07-04 Gen Electric Amplitude modulated radio frequency transmitter
US4418416A (en) * 1981-04-06 1983-11-29 Bell Telephone Laboratories, Incorporated Frequency modulation transmitter for voice or data

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439844A (en) * 1943-10-29 1948-04-20 Bendix Aviat Corp Amplifier and oscillator circuit
US2441955A (en) * 1944-04-04 1948-05-25 Standard Telephones Cables Ltd Oscillator modulator
US2421468A (en) * 1944-08-25 1947-06-03 Rca Corp Selective transmitting, receiving, and oscillator circuit
US2459281A (en) * 1945-01-08 1949-01-18 Rca Corp Two-way radio equipment for lifeboat service
US2585019A (en) * 1945-02-06 1952-02-12 Int Standard Electric Corp Voice frequency signaling circuit
US2453269A (en) * 1945-05-21 1948-11-09 Automatic Elect Lab Printing telegraph system
US2515254A (en) * 1946-12-11 1950-07-18 Paul W Nosker Remote-control system
US2991357A (en) * 1959-08-31 1961-07-04 Gen Electric Amplitude modulated radio frequency transmitter
US4418416A (en) * 1981-04-06 1983-11-29 Bell Telephone Laboratories, Incorporated Frequency modulation transmitter for voice or data

Also Published As

Publication number Publication date
DE489942C (de) 1930-01-22
NL20201C (OSRAM)

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