GB222150A - Improvements relating to receiving systems for electric signals - Google Patents

Improvements relating to receiving systems for electric signals

Info

Publication number
GB222150A
GB222150A GB22321/24A GB2232124A GB222150A GB 222150 A GB222150 A GB 222150A GB 22321/24 A GB22321/24 A GB 22321/24A GB 2232124 A GB2232124 A GB 2232124A GB 222150 A GB222150 A GB 222150A
Authority
GB
United Kingdom
Prior art keywords
valve
piezo
detector
electric signals
circuit
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
GB22321/24A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB222150A publication Critical patent/GB222150A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements

Abstract

222,150. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Batsel, M. C.). Sept. 20, 1923, [Convention date]. Atmospherics and undesired signals, eliminating.-A receiver is made responsive to a particular wave-length by providing a piezo-electric coupling between successive circuits. Such a coupling passes on energy only of a particular frequency determined by the dimensions of the crystal. As shown, the plate circuit of a highfrequency amplifier includes a tuned circuit 19, 22 across which are connected plates 9, 12 cemented to opposite faces of the piezo-electric crystal 11. Similar plates 13, 14 are shunted by a leak 21 in the grid circuit of a detector valve. The first valve may be a detector or self-heterodyne valve, and the second may be one stage in a multi-stage amplifier. The condenser may be omitted.
GB22321/24A 1923-09-20 1924-09-22 Improvements relating to receiving systems for electric signals Expired GB222150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US222150XA 1923-09-20 1923-09-20

Publications (1)

Publication Number Publication Date
GB222150A true GB222150A (en) 1925-04-09

Family

ID=21808443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22321/24A Expired GB222150A (en) 1923-09-20 1924-09-22 Improvements relating to receiving systems for electric signals

Country Status (1)

Country Link
GB (1) GB222150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19631421A1 (en) * 1996-08-06 1998-02-12 Beiersdorf Ag Antimicrobial wound dressings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19631421A1 (en) * 1996-08-06 1998-02-12 Beiersdorf Ag Antimicrobial wound dressings
DE19631421C2 (en) * 1996-08-06 2002-07-18 Beiersdorf Ag Antimicrobial wound dressings

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