ES172055A1 - IMPROVEMENTS IN DEMODULATORS - Google Patents

IMPROVEMENTS IN DEMODULATORS

Info

Publication number
ES172055A1
ES172055A1 ES0172055A ES172055A ES172055A1 ES 172055 A1 ES172055 A1 ES 172055A1 ES 0172055 A ES0172055 A ES 0172055A ES 172055 A ES172055 A ES 172055A ES 172055 A1 ES172055 A1 ES 172055A1
Authority
ES
Spain
Prior art keywords
electrodes
carrier waves
input
polarization potential
output
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
ES0172055A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana 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
Application filed by Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES172055A1 publication Critical patent/ES172055A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

Demodulador para ondas portadoras telegráficas con la combinación de medios para rectificar dichas ondas portadoras un amplificador dotado de electrodos de entrada y de salida un potencial de polarización normal y un potencial de polarización de trabajo que se conecten a dichos electrodos de entrada siendo dichos potenciales de signo opuesto y obteniéndose ellos de dichos medios de rectificación y un circuito de salida conectado a dichos electrodos de salida.Demodulator for telegraphic carrier waves with the combination of means to rectify said carrier waves, an amplifier provided with input and output electrodes, a normal polarization potential and a working polarization potential that are connected to said input electrodes, said potentials being sign opposite and they being obtained from said rectifying means and an output circuit connected to said output electrodes.

ES0172055A 1944-12-04 1946-01-05 IMPROVEMENTS IN DEMODULATORS Expired ES172055A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US566557A US2424961A (en) 1944-12-04 1944-12-04 Demodulator for carrier telegraph signals

Publications (1)

Publication Number Publication Date
ES172055A1 true ES172055A1 (en) 1946-02-01

Family

ID=24263391

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0172055A Expired ES172055A1 (en) 1944-12-04 1946-01-05 IMPROVEMENTS IN DEMODULATORS

Country Status (5)

Country Link
US (1) US2424961A (en)
BE (1) BE462165A (en)
CH (1) CH260442A (en)
ES (1) ES172055A1 (en)
FR (1) FR940960A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE481448A (en) * 1947-02-07
NL73400C (en) * 1948-02-05
GB718500A (en) * 1951-02-22 1954-11-17 British Telecomm Res Ltd Improvements in and relating to electric converter circuit arrangements
US2770677A (en) * 1952-04-29 1956-11-13 Rca Corp Neutral-to-polar current conversion circuits
US2864077A (en) * 1954-03-10 1958-12-09 Turk John E De Means for distinguishing positive and negative pulses in magnetic tape recording
US2804605A (en) * 1954-03-19 1957-08-27 Raytheon Mfg Co Magnetic recording playback circuits
USRE25699E (en) * 1954-04-26 1964-12-15 Simplified two-channel multiplex system
US2794856A (en) * 1954-08-27 1957-06-04 Western Union Telegraph Co Transistorized keying and mark-hold unit
US2938082A (en) * 1954-09-30 1960-05-24 Robert D Mohler Telephone apparatus
GB821765A (en) * 1956-04-30 1959-10-14 Gen Electric Co Ltd Improvements in or relating to transistor switching arrangements
US2997543A (en) * 1957-06-24 1961-08-22 American Telephone & Telegraph Reduction of effect of hits on telegraph reception
US3017464A (en) * 1958-12-03 1962-01-16 Western Union Telegraph Co Frequency shift modulation receiver
US3037080A (en) * 1960-06-07 1962-05-29 Schindler Ludwig Telecommunication receiver
US3155844A (en) * 1961-06-02 1964-11-03 Lear Siegler Inc Magnetic integrator including hall effect device and unijunction transistor switchesfor providing step-like flux density
US3179748A (en) * 1961-12-19 1965-04-20 Bell Telephone Labor Inc Balanced demodulator for frequencyshift data signals
US8516484B2 (en) 2008-02-01 2013-08-20 International Business Machines Corporation Wake-and-go mechanism for a data processing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925838A (en) * 1932-07-01 1933-09-05 Boehme Inc H O Push-pull signal amplifier
US2101256A (en) * 1934-12-29 1937-12-07 Bell Telephone Labor Inc Carrier telegraph receiver
DE744376C (en) * 1936-10-13 1944-01-14 Siemens Ag Process for the transmission of telegraphic characters in carrier flow telegraph systems

Also Published As

Publication number Publication date
US2424961A (en) 1947-08-05
BE462165A (en)
CH260442A (en) 1949-03-15
FR940960A (en) 1948-12-29

Similar Documents

Publication Publication Date Title
ES172055A1 (en) IMPROVEMENTS IN DEMODULATORS
DK72866C (en) Amplifier coupling to provide constant gain.
DK73580C (en) Coupling for amplification of electrical oscillations.
FR936720A (en) Improvements to printing telegraph systems
FR986997A (en) Improvements to punch card sorters
FR898670A (en) Letter card
FR991187A (en) Document carrier
FR990148A (en) High-speed printed telegraphy system applicable to radio links
ES170102A1 (en) IMPROVEMENTS IN OR RELATIVE OR RECEIVERS TELEGRAPH PRINTERS
CA421722A (en) Combined business card and label
FR907040A (en) Improvement in telegraphic communications
ES11146Y (en) School portfolio.
DK66874C (en) Case for Orienteering Card.
AU114733B2 (en) Circuit arrangement forthe transmission of electric oscillations froman input toan output circuit
DK76815C (en) Coupling with several amplifiers whose input circuits are connected to the same voltage source and where the output oscillations are amplitude stabilized.
GR10980B (en) CLASSIFICATION CARD.
DK72867C (en) Coupling to limit the amplitude of electrical oscillations.
DK73309C (en) Coupling for amplification of electrical oscillations.
DK73681C (en) Telegraph.
FR900822A (en) Envelope letter
FR896056A (en) Envelope letter
FR896581A (en) Envelope letter
AU121396B2 (en) Improvements in or relating to thermionic valve modulating and demodulating circuits
FR909470A (en) Cuprous, aluminitic and sulphite anticryptogamic slurries
DK72824C (en) Plants for selection and exclusion of electrical impulses.