US1342885A - Method of receiving high-frequency oscillations - Google Patents

Method of receiving high-frequency oscillations Download PDF

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Publication number
US1342885A
US1342885A US275744A US27574419A US1342885A US 1342885 A US1342885 A US 1342885A US 275744 A US275744 A US 275744A US 27574419 A US27574419 A US 27574419A US 1342885 A US1342885 A US 1342885A
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United States
Prior art keywords
oscillations
high frequency
frequency
energy
incoming
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Expired - Lifetime
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US275744A
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English (en)
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Edwin H Armstrong
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Individual
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Individual
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Priority to FR501511A priority Critical patent/FR501511A/fr
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Priority to US275744A priority patent/US1342885A/en
Priority to GB17208/19A priority patent/GB137271A/en
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Publication of US1342885A publication Critical patent/US1342885A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Definitions

  • This invention re ates to'a method of receiving transmitted'high frequency oscillations as in radio tele aphy or radio telephony and it is particularly effective when receiving damped or undamped waves of short wave len h.
  • Another result achieved by the use of t is invention is that because of its selectivity the interference caused by undesirable signals, strays, and atmospherics is reatly reduced.
  • the present invention discloses a method of indirect amplification and reception which operates independent of the frequency of the incoming oscillations and which, therefore, opens up the great ran e of wave lengths below 100 meters and maies possible, in fact, the use of waves of a few meters in length whereby radio communication by directed beams of energy becomes a practical apposition.
  • the present invention may also used to great advantage on wave lengths from 300 to 1,000 meters with a considerable gain in selectivity and sensitiveness, as compared ,to any of the known methods.
  • This new method of reception consists in converting the frequency of the" incomin oscillations down to some predetermined and lower value of readily amplifiable high frequency current and passing the converted current into an amplifier whlch is adjusted to operate well at'this predetermined speedsc I
  • t ese oscillations are detected and indicatcd in the usilial manrgr.
  • the (ilnterngdliate uency is aways a ve goo .an i iit i t beyond this requirement there is no oth r limitation as to what it shall be.
  • the method of conversion preferred is the beat method known as the heterodyne principle, except that in the present system the beat frequency is always adjusted to a point above good audibility.
  • the process of convertin the incoming high frequency oscillations ownto the audible range may be carried out in several stages and each stage may be amplified by means of a multi-tube am lifier. e great advantage of this meth is that the effect Patented June 8, 1920.
  • Figure 1 illustrates a simple diagrammatic adaption of 'theinvention
  • Figs. 2 and 3 illustrate in detail an arrangement of cir-' cuits and vacuum tubes whereby this new method of receiving may be accomplished
  • Fig. 4 illustrates a system in which the proces of conversion-and amplification is carried out in two stageswherebv certain advantages hereinafter explained are obtainable.
  • A' separate heterodync 11 is shown coup ed to the circuit 9-10 and is used when receiving undamped waves.
  • this new method may be utilized as follows he incoming oscillations are combined in the circuit 2-3 with the oscillations generated locally by the source 6. The frequency-of the source 6 is adjusted to give a beat fre-- quency which is the predetermined frequency, to which the amplifier is adjusted.
  • rectifiers 4 and 9 are indicatedconventionally but they may be vacuum tubes or crystals or any other similar suitable device.
  • the choice of the rectifier depends on several considerations which are well known at thepresent time.
  • the high frequency amplifier 8 may be any one of the several types which are well known and it may frequency amplifier 28 am lifies the amplifier 8 which is ad'usted we converted by means of a rectifier,
  • a source 12 of incoming oscillations is associated with the circuit 13--14 preferably tuned to the incoming oscilla--' tions; a vacuum tube oscillator-rectifier 16 in conjunction with the circuit 15-13- 14.-1617 forms a self-.heterodyne.
  • a multi-tube high frequencyi'sistance cou led' amplifier 18 amplifies energy obtained by inductive couplin from the inductance 17.
  • a detector 19 an telephones 20 detect and indicate the oscillations amplified by' the am lifier 18.
  • P ig. 3 illustrates in detail the utilization of my method using a. tuned amplifier syscillations, and a vacuum tube recti system 2 223+-25 converts the combm oscillations of the incoming and those from the separate heterodyne 24.
  • Thecircuit 26-27 is tuned to the converted combination of the two oscillations.
  • 1g. 4 illustrates the general a ment of circuits and apparatus in which the rinciple 'of f uency conversion and amp ification is emp oyed twice.
  • the coil '31 represents the source ofthe incoming oscillations.
  • 3 is a circuit tuned to tbs1 incoming oscillations; a separate hetero 32-33.
  • a detector 35 rectifies the coinbined currents which are applied to the high frequency amplifier 38 and the amplified currents again combined with local oscillations from the source 40 and then applied to another high frequency amplifier 43 by means of the coupling 41- -42. The resultant energy is then detected and indicated by the detector 44-and the telephones 45.
  • spark signals and telephonic speech is accomplished without the hissing or distorted tone which invariably results when the ordinary form of beat or heterodyne reception is employed. The reason for this is rather involved and in any case unnecessary as it is an easily demonstrated ex rimental fact.
  • the method of amplifying and receiving high frequency electrical oscillatory energy which comprises, combinin t e incoming energy with locally generated high frequency continuous oscillations of a frequency differing from said incoming energy by a third readily-amplifiable high frequency, converting the combined energy by suitable means to produce said readily-amplifiable high frequency oscillations, amplifying the said third high frequency oscillatlon's, and detecting and indicating the resulting amplified oscillations.
  • the method of amplifying and receiving high frequency electrical oscillatory energy which comprises, combining the incoming energy with locally generated high frequency continuous electrical oscillations of a frequency differing from said incoming energy by a third readily-amplifiable high frequency, rectifying the combined energy to produce said readl -amplifiable high frequency oscillations, amplifying the said third high frequency oscillations, and detecting and indicating the resulting amplified oscillations.
  • the method of amplifying and receiving high frequency damped .wave oscillatory electrical energy which comprises, combining the incoming energy with locall generated high frequency continuous e ectrical oscillations of a frequency differing from said incomin energy by a third readilgamplifiable high frequency, converting t e combined emggy by suitable means to produce said rea y-amplifiable high frequency oscillations, amplifying the said third high frequency oscillations and detecting and indicating the resulting amplified oscillations.
  • the method of amplifying and. receiving undamped wave high frequency electrica oscillatory energy which comprises combining the incoming energy with locally generated high frequency continuous electrical oscillations of a f uency differing from said incoming energy y a third readily-amplifiable high frequency, amplifying the said third high frequency oscillations, combining 4 said third high frequency electrical oscillations with locally generated high f uency oscillations at a frequency near to sai third high frequency, converting the said last combined energy to produce low frequency oscillations and indicating the resulting low frequency oscillations.
  • the method of indirectl amplifying high frequency electrical oscillatory energy which comprises combining said energy with high frequency continuous electrical oscillations of a freq energy by a third readily-amplifiable high frequency, converting the combined energy by suitable means to produce said readilyamplifiable high frequency'oscillations and uency differing from said amplifying said resulting readily-amplifiable hi h fre uency oscillations.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
US275744A 1919-02-08 1919-02-08 Method of receiving high-frequency oscillations Expired - Lifetime US1342885A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR501511A FR501511A (fr) 1919-02-08 1918-12-30 Méthode de réception d'oscillations de haute fréquence
US275744A US1342885A (en) 1919-02-08 1919-02-08 Method of receiving high-frequency oscillations
GB17208/19A GB137271A (en) 1919-02-08 1919-07-09 Improved method for receiving wireless signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US275744A US1342885A (en) 1919-02-08 1919-02-08 Method of receiving high-frequency oscillations

Publications (1)

Publication Number Publication Date
US1342885A true US1342885A (en) 1920-06-08

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US275744A Expired - Lifetime US1342885A (en) 1919-02-08 1919-02-08 Method of receiving high-frequency oscillations

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US (1) US1342885A (fr)
FR (1) FR501511A (fr)
GB (1) GB137271A (fr)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468041A (en) * 1942-03-09 1949-04-26 Int Standard Electric Corp Radio receiver
US2712062A (en) * 1949-04-12 1955-06-28 Rca Corp Converter circuits
US5630220A (en) * 1992-05-22 1997-05-13 Kabushiki Kaisha Toshiba Automatic gain control circuit for radio communication apparatus
US5715529A (en) * 1992-06-26 1998-02-03 U.S. Philips Corporation FM receiver including a phase-quadrature polyphase if filter
US5978488A (en) * 1998-09-03 1999-11-02 Margolin; Jed Simulated AM radio
US20010007151A1 (en) * 1998-11-12 2001-07-05 Pieter Vorenkamp Fully integrated tuner architecture
US6300785B1 (en) * 1998-10-20 2001-10-09 International Business Machines Corporation Contact-less probe of semiconductor wafers
US6798866B1 (en) 2001-12-12 2004-09-28 Bellsouth Intellectual Property Corp. System and method for verifying central office wiring associated with line sharing
US20050085032A1 (en) * 2003-08-25 2005-04-21 Majid Aghababazadeh Technique for evaluating a fabrication of a die and wafer
US20050094719A1 (en) * 2000-11-29 2005-05-05 Young Randy K. Broadband modulation/demodulation apparatus and a method thereof
US20080180278A1 (en) * 2007-01-31 2008-07-31 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for wireless telemetry
US20080269841A1 (en) * 2007-04-30 2008-10-30 Medtronic, Inc. Chopper mixer telemetry circuit
US20090045222A1 (en) * 2007-08-14 2009-02-19 Power Container Corp. Bag of variable volume, device suitable for dispensing fluids comprising said bag, and process for filling said device
US20090082691A1 (en) * 2007-09-26 2009-03-26 Medtronic, Inc. Frequency selective monitoring of physiological signals
US20100033240A1 (en) * 2007-01-31 2010-02-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US20100114223A1 (en) * 2008-10-31 2010-05-06 Wahlstrand John D Determining intercardiac impedance
US20100113964A1 (en) * 2008-10-31 2010-05-06 Wahlstrand John D Determining intercardiac impedance
US20100327887A1 (en) * 2007-01-31 2010-12-30 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US20110068861A1 (en) * 2007-01-31 2011-03-24 Medtronic, Inc. Chopper-stabilized instrumentation amplifier
US20110128183A1 (en) * 2008-08-06 2011-06-02 Chris Marshall Robust location estimation
US8554325B2 (en) 2007-10-16 2013-10-08 Medtronic, Inc. Therapy control based on a patient movement state
US9248288B2 (en) 2007-09-26 2016-02-02 Medtronic, Inc. Patient directed therapy control
US9439150B2 (en) 2013-03-15 2016-09-06 Medtronic, Inc. Control of spectral agressors in a physiological signal montoring device
US9521979B2 (en) 2013-03-15 2016-12-20 Medtronic, Inc. Control of spectral agressors in a physiological signal monitoring device
US9706957B2 (en) 2008-01-25 2017-07-18 Medtronic, Inc. Sleep stage detection
US9770204B2 (en) 2009-11-11 2017-09-26 Medtronic, Inc. Deep brain stimulation for sleep and movement disorders
US9924904B2 (en) 2014-09-02 2018-03-27 Medtronic, Inc. Power-efficient chopper amplifier
US10419048B2 (en) 2015-09-02 2019-09-17 University Of Washington System and method for direct-sample extremely wide band transceiver
US11588421B1 (en) 2019-08-15 2023-02-21 Robert M. Lyden Receiver device of energy from the earth and its atmosphere
EP4160911A1 (fr) 2021-09-30 2023-04-05 The Swatch Group Research and Development Ltd Procede pour ameliorer le demarrage d'un oscillateur d'un recepteur a super reaction, et recepteur pour la mise en uvre du procede

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468041A (en) * 1942-03-09 1949-04-26 Int Standard Electric Corp Radio receiver
US2712062A (en) * 1949-04-12 1955-06-28 Rca Corp Converter circuits
US5630220A (en) * 1992-05-22 1997-05-13 Kabushiki Kaisha Toshiba Automatic gain control circuit for radio communication apparatus
US5715529A (en) * 1992-06-26 1998-02-03 U.S. Philips Corporation FM receiver including a phase-quadrature polyphase if filter
US5978488A (en) * 1998-09-03 1999-11-02 Margolin; Jed Simulated AM radio
US6300785B1 (en) * 1998-10-20 2001-10-09 International Business Machines Corporation Contact-less probe of semiconductor wafers
US6455766B1 (en) 1998-10-20 2002-09-24 International Business Machines Corporation Contact-less probe of semiconductor wafers
US20010007151A1 (en) * 1998-11-12 2001-07-05 Pieter Vorenkamp Fully integrated tuner architecture
US7236212B2 (en) 1998-11-12 2007-06-26 Broadcom Corporation System and method for providing a low power receiver design
US8045066B2 (en) 1998-11-12 2011-10-25 Broadcom Corporation Fully integrated tuner architecture
US20110067083A1 (en) * 1998-11-12 2011-03-17 Broadcom Corporation Fully Integrated Tuner Architecture
US7821581B2 (en) 1998-11-12 2010-10-26 Broadcom Corporation Fully integrated tuner architecture
US7423699B2 (en) 1998-11-12 2008-09-09 Broadcom Corporation Fully integrated tuner architecture
US7092043B2 (en) 1998-11-12 2006-08-15 Broadcom Corporation Fully integrated tuner architecture
US20050094719A1 (en) * 2000-11-29 2005-05-05 Young Randy K. Broadband modulation/demodulation apparatus and a method thereof
US7580488B2 (en) 2000-11-29 2009-08-25 The Penn State Research Foundation Broadband modulation/demodulation apparatus and a method thereof
US6798866B1 (en) 2001-12-12 2004-09-28 Bellsouth Intellectual Property Corp. System and method for verifying central office wiring associated with line sharing
US7339388B2 (en) 2003-08-25 2008-03-04 Tau-Metrix, Inc. Intra-clip power and test signal generation for use with test structures on wafers
US20050085932A1 (en) * 2003-08-25 2005-04-21 Majid Aghababazadeh Technique for evaluating a fabrication of a semiconductor component and wafer
US20070238206A1 (en) * 2003-08-25 2007-10-11 Majid Aghababazadeh System and apparatus for using test structures inside of a chip during the fabrication of the chip
US20050085032A1 (en) * 2003-08-25 2005-04-21 Majid Aghababazadeh Technique for evaluating a fabrication of a die and wafer
US20080100319A1 (en) * 2003-08-25 2008-05-01 Majid Aghababazadeh Intra-chip power and test signal generation for use with test structures on wafers
US8344745B2 (en) 2003-08-25 2013-01-01 Tau-Metrix, Inc. Test structures for evaluating a fabrication of a die or a wafer
US7256055B2 (en) 2003-08-25 2007-08-14 Tau-Metrix, Inc. System and apparatus for using test structures inside of a chip during the fabrication of the chip
US20070236232A1 (en) * 2003-08-25 2007-10-11 Majid Aghababazadeh System and apparatus for using test structures inside of a chip during the fabrication of the chip
US20080315196A1 (en) * 2003-08-25 2008-12-25 Majid Aghababazadeh Technique for evaluating a fabrication of a die and wafer
US7736916B2 (en) 2003-08-25 2010-06-15 Tau-Metrix, Inc. System and apparatus for using test structures inside of a chip during the fabrication of the chip
US8990759B2 (en) 2003-08-25 2015-03-24 Tau-Metrix, Inc. Contactless technique for evaluating a fabrication of a wafer
US7220990B2 (en) 2003-08-25 2007-05-22 Tau-Metrix, Inc. Technique for evaluating a fabrication of a die and wafer
US7605597B2 (en) 2003-08-25 2009-10-20 Tau-Metrix, Inc. Intra-chip power and test signal generation for use with test structures on wafers
US20100304509A1 (en) * 2003-08-25 2010-12-02 Majid Aghababazadeh Contactless technique for evaluating a fabrication of a wafer
US20070004063A1 (en) * 2003-08-25 2007-01-04 Majid Aghababazadeh Technique for evaluating a fabrication of a die and wafer
US20050090916A1 (en) * 2003-08-25 2005-04-28 Majid Aghababazadeh Intra-chip power and test signal generation for use with test structures on wafers
US7723724B2 (en) 2003-08-25 2010-05-25 Tau-Metrix, Inc. System for using test structures to evaluate a fabrication of a wafer
US7730434B2 (en) 2003-08-25 2010-06-01 Tau-Metrix, Inc. Contactless technique for evaluating a fabrication of a wafer
US9615744B2 (en) 2007-01-31 2017-04-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US8354881B2 (en) 2007-01-31 2013-01-15 Medtronic, Inc. Chopper-stabilized instrumentation amplifier
US20100033240A1 (en) * 2007-01-31 2010-02-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US20100327887A1 (en) * 2007-01-31 2010-12-30 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US9197173B2 (en) 2007-01-31 2015-11-24 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US20110068861A1 (en) * 2007-01-31 2011-03-24 Medtronic, Inc. Chopper-stabilized instrumentation amplifier
US20080180278A1 (en) * 2007-01-31 2008-07-31 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for wireless telemetry
US8265769B2 (en) 2007-01-31 2012-09-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for wireless telemetry
US8781595B2 (en) 2007-04-30 2014-07-15 Medtronic, Inc. Chopper mixer telemetry circuit
US9449501B2 (en) 2007-04-30 2016-09-20 Medtronics, Inc. Chopper mixer telemetry circuit
US20080269841A1 (en) * 2007-04-30 2008-10-30 Medtronic, Inc. Chopper mixer telemetry circuit
US20090045222A1 (en) * 2007-08-14 2009-02-19 Power Container Corp. Bag of variable volume, device suitable for dispensing fluids comprising said bag, and process for filling said device
US10258798B2 (en) 2007-09-26 2019-04-16 Medtronic, Inc. Patient directed therapy control
US20090082691A1 (en) * 2007-09-26 2009-03-26 Medtronic, Inc. Frequency selective monitoring of physiological signals
US9248288B2 (en) 2007-09-26 2016-02-02 Medtronic, Inc. Patient directed therapy control
US8554325B2 (en) 2007-10-16 2013-10-08 Medtronic, Inc. Therapy control based on a patient movement state
US10165977B2 (en) 2008-01-25 2019-01-01 Medtronic, Inc. Sleep stage detection
US9706957B2 (en) 2008-01-25 2017-07-18 Medtronic, Inc. Sleep stage detection
US9465095B2 (en) * 2008-08-06 2016-10-11 U-Blox Ag Robust location estimation
US20110128183A1 (en) * 2008-08-06 2011-06-02 Chris Marshall Robust location estimation
US20100114223A1 (en) * 2008-10-31 2010-05-06 Wahlstrand John D Determining intercardiac impedance
US8478402B2 (en) 2008-10-31 2013-07-02 Medtronic, Inc. Determining intercardiac impedance
US20100113964A1 (en) * 2008-10-31 2010-05-06 Wahlstrand John D Determining intercardiac impedance
US9770204B2 (en) 2009-11-11 2017-09-26 Medtronic, Inc. Deep brain stimulation for sleep and movement disorders
US9521979B2 (en) 2013-03-15 2016-12-20 Medtronic, Inc. Control of spectral agressors in a physiological signal monitoring device
US9439150B2 (en) 2013-03-15 2016-09-06 Medtronic, Inc. Control of spectral agressors in a physiological signal montoring device
US9924904B2 (en) 2014-09-02 2018-03-27 Medtronic, Inc. Power-efficient chopper amplifier
US10419048B2 (en) 2015-09-02 2019-09-17 University Of Washington System and method for direct-sample extremely wide band transceiver
US11588421B1 (en) 2019-08-15 2023-02-21 Robert M. Lyden Receiver device of energy from the earth and its atmosphere
EP4160911A1 (fr) 2021-09-30 2023-04-05 The Swatch Group Research and Development Ltd Procede pour ameliorer le demarrage d'un oscillateur d'un recepteur a super reaction, et recepteur pour la mise en uvre du procede

Also Published As

Publication number Publication date
FR501511A (fr) 1920-04-16
GB137271A (en) 1921-02-24

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