GB1358285A - Receiver apparatus comprising vibrating reed selectors - Google Patents

Receiver apparatus comprising vibrating reed selectors

Info

Publication number
GB1358285A
GB1358285A GB4814971A GB4814971A GB1358285A GB 1358285 A GB1358285 A GB 1358285A GB 4814971 A GB4814971 A GB 4814971A GB 4814971 A GB4814971 A GB 4814971A GB 1358285 A GB1358285 A GB 1358285A
Authority
GB
United Kingdom
Prior art keywords
reeds
amplifier
receiver apparatus
vibrating reed
windings
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
GB4814971A
Other languages
English (en)
Inventor
Roger D'hayer
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.)
Umicore NV SA
Original Assignee
Ateliers de Constructions Electriques de Charleroi SA
ACEC 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 Ateliers de Constructions Electriques de Charleroi SA, ACEC SA filed Critical Ateliers de Constructions Electriques de Charleroi SA
Publication of GB1358285A publication Critical patent/GB1358285A/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
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB4814971A 1970-10-15 1971-10-15 Receiver apparatus comprising vibrating reed selectors Expired GB1358285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE757532A BE757532A (fr) 1970-10-15 1970-10-15 Dispositif recepteur comprenant des selecteurs a lames vibrantes,

Publications (1)

Publication Number Publication Date
GB1358285A true GB1358285A (en) 1974-07-03

Family

ID=3857151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4814971A Expired GB1358285A (en) 1970-10-15 1971-10-15 Receiver apparatus comprising vibrating reed selectors

Country Status (6)

Country Link
BE (1) BE757532A (enExample)
DE (1) DE2151461B2 (enExample)
FR (1) FR2111361A5 (enExample)
GB (1) GB1358285A (enExample)
LU (1) LU64064A1 (enExample)
NL (1) NL7114163A (enExample)

Also Published As

Publication number Publication date
DE2151461A1 (de) 1972-07-06
NL7114163A (nl) 1972-04-18
DE2151461B2 (de) 1978-07-06
BE757532A (fr) 1971-04-15
FR2111361A5 (fr) 1972-06-02
LU64064A1 (fr) 1972-04-21
DE2151461C3 (enExample) 1979-03-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee