GB153300A - Improvements in the recording and reproduction of sounds by means of a sound succession relief - Google Patents

Improvements in the recording and reproduction of sounds by means of a sound succession relief

Info

Publication number
GB153300A
GB153300A GB30825/20A GB3082520A GB153300A GB 153300 A GB153300 A GB 153300A GB 30825/20 A GB30825/20 A GB 30825/20A GB 3082520 A GB3082520 A GB 3082520A GB 153300 A GB153300 A GB 153300A
Authority
GB
United Kingdom
Prior art keywords
sound
condenser
variations
capacity
reproducing
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
GB30825/20A
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
Publication of GB153300A publication Critical patent/GB153300A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor

Abstract

153,300. Waltz, E., and Meusser, H. Nov. 1, 1919, [Convention date]. Thermionic relays and repeaters.-In a method of reproducing sound by passing a record between the electrodes of a condenser in such a way as to vary its capacity, the variations in capacity of the condenser are impressed as variations of potential on the grid circuit of a valve amplifier. In the arrangement shown in Fig. 14, the reproducing condenser c<1> is placed in a high-frequency circuit and the diagram represents a wheatstone-bridge arrangement in which the grid circuit of a thermionic valve is substituted for the galvanometer branch. The sound is reproduced in a telephone t. The capacity variations of the reproducing condenser c' may be superposed as shown in Fig. 15 on high-frequency currents from a generator q.
GB30825/20A 1919-11-01 1920-11-01 Improvements in the recording and reproduction of sounds by means of a sound succession relief Expired GB153300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE153300X 1919-11-01

Publications (1)

Publication Number Publication Date
GB153300A true GB153300A (en) 1922-02-01

Family

ID=5675633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30825/20A Expired GB153300A (en) 1919-11-01 1920-11-01 Improvements in the recording and reproduction of sounds by means of a sound succession relief

Country Status (1)

Country Link
GB (1) GB153300A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546850A (en) * 1946-03-06 1951-03-27 Jean Marie Achille Legrand Means for engraving sound tracks on a support and reproducing sounds by scanning said tracks
US2581680A (en) * 1947-04-16 1952-01-08 Martenot Maurice Movable tape condenser for electronic generators
US2726289A (en) * 1951-07-27 1955-12-06 Rca Corp Electrostatic recording and reproducing system
US3783196A (en) * 1971-03-22 1974-01-01 Rca Corp High-density capacitive information records and playback apparatus therefor
US3826877A (en) * 1972-09-06 1974-07-30 Rca Corp Information playback system stylus
US3833408A (en) * 1972-04-19 1974-09-03 Rca Corp Video discs having a methyl alkyl silicone coating
US3842194A (en) * 1971-03-22 1974-10-15 Rca Corp Information records and recording/playback systems therefor
US3846591A (en) * 1969-10-01 1974-11-05 L Case Photographically magnetic information storage element
US4450550A (en) * 1981-09-30 1984-05-22 Rca Corporation Pickup circuit for video disc including dual-gate FET with injected RF

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546850A (en) * 1946-03-06 1951-03-27 Jean Marie Achille Legrand Means for engraving sound tracks on a support and reproducing sounds by scanning said tracks
US2581680A (en) * 1947-04-16 1952-01-08 Martenot Maurice Movable tape condenser for electronic generators
US2726289A (en) * 1951-07-27 1955-12-06 Rca Corp Electrostatic recording and reproducing system
US3846591A (en) * 1969-10-01 1974-11-05 L Case Photographically magnetic information storage element
US3783196A (en) * 1971-03-22 1974-01-01 Rca Corp High-density capacitive information records and playback apparatus therefor
US3842194A (en) * 1971-03-22 1974-10-15 Rca Corp Information records and recording/playback systems therefor
US3833408A (en) * 1972-04-19 1974-09-03 Rca Corp Video discs having a methyl alkyl silicone coating
US3826877A (en) * 1972-09-06 1974-07-30 Rca Corp Information playback system stylus
US4450550A (en) * 1981-09-30 1984-05-22 Rca Corporation Pickup circuit for video disc including dual-gate FET with injected RF

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