GB349083A - Improvements in or relating to wave responsive apparatus - Google Patents

Improvements in or relating to wave responsive apparatus

Info

Publication number
GB349083A
GB349083A GB574630A GB574630A GB349083A GB 349083 A GB349083 A GB 349083A GB 574630 A GB574630 A GB 574630A GB 574630 A GB574630 A GB 574630A GB 349083 A GB349083 A GB 349083A
Authority
GB
United Kingdom
Prior art keywords
class
light
resonator
electric
light applied
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
GB574630A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB574630A priority Critical patent/GB349083A/en
Publication of GB349083A publication Critical patent/GB349083A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Lock And Its Accessories (AREA)
  • Optical Communication System (AREA)

Abstract

349,083. Wireless receiving systems. ROBINSON, J., of British Radiostat Corporation, 29, George Street, Hanover Square, London. Feb. 20, 1930, No. 5746. [Class 40 (v).] Modulated electric wave signals are selectively received and detected by applying the incoming oscillation to a highly selective mechanical vibrating resonator, such as piezoelectric crystal, which controls a beam of light applied to a photo-electric cell to obtain an electrical output. The Figure shows a light source 14, polarizing devices 19, 20 and a piezo-electric crystal 13 controlling the beam of light applied to photoelectric cell 15. The distortion due to the high selectivity of the resonator may be corrected as described in Specification 344,869. Specification 325,232, [Class 40 (v), Wireless signalling &c.], is also referred to. The Provisional Specification describes the use of the light variations to produce a record upon a photographic film.
GB574630A 1930-02-20 1930-02-20 Improvements in or relating to wave responsive apparatus Expired GB349083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB574630A GB349083A (en) 1930-02-20 1930-02-20 Improvements in or relating to wave responsive apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB574630A GB349083A (en) 1930-02-20 1930-02-20 Improvements in or relating to wave responsive apparatus

Publications (1)

Publication Number Publication Date
GB349083A true GB349083A (en) 1931-05-20

Family

ID=9801865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB574630A Expired GB349083A (en) 1930-02-20 1930-02-20 Improvements in or relating to wave responsive apparatus

Country Status (1)

Country Link
GB (1) GB349083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2141796A3 (en) * 2008-07-02 2016-03-30 Frank Schmidt Receiver device, use of a receiver device, system, and also method for low-energie reception of data

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2141796A3 (en) * 2008-07-02 2016-03-30 Frank Schmidt Receiver device, use of a receiver device, system, and also method for low-energie reception of data

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