GB1334650A - Circuit arrangements for the frequency conversion of electrical information signals - Google Patents

Circuit arrangements for the frequency conversion of electrical information signals

Info

Publication number
GB1334650A
GB1334650A GB1155672A GB1155672A GB1334650A GB 1334650 A GB1334650 A GB 1334650A GB 1155672 A GB1155672 A GB 1155672A GB 1155672 A GB1155672 A GB 1155672A GB 1334650 A GB1334650 A GB 1334650A
Authority
GB
United Kingdom
Prior art keywords
filter
modulator
electromechanical filter
information signals
electromechanical
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
GB1155672A
Other languages
English (en)
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Publication of GB1334650A publication Critical patent/GB1334650A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H04J1/045—Filters applied to frequency transposition
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/48—Coupling means therefor
    • H03H9/52—Electric coupling means

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Amplitude Modulation (AREA)
GB1155672A 1971-03-12 1972-03-13 Circuit arrangements for the frequency conversion of electrical information signals Expired GB1334650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712112041 DE2112041A1 (de) 1971-03-12 1971-03-12 Schaltungsanordnung zur Frequenzumsetzung elektrischer Nachrichtensignale

Publications (1)

Publication Number Publication Date
GB1334650A true GB1334650A (en) 1973-10-24

Family

ID=5801402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1155672A Expired GB1334650A (en) 1971-03-12 1972-03-13 Circuit arrangements for the frequency conversion of electrical information signals

Country Status (10)

Country Link
AT (1) AT310816B (enrdf_load_stackoverflow)
AU (1) AU463059B2 (enrdf_load_stackoverflow)
BE (1) BE780534A (enrdf_load_stackoverflow)
DE (1) DE2112041A1 (enrdf_load_stackoverflow)
FR (1) FR2128816B1 (enrdf_load_stackoverflow)
GB (1) GB1334650A (enrdf_load_stackoverflow)
IL (1) IL38922A (enrdf_load_stackoverflow)
IT (1) IT949935B (enrdf_load_stackoverflow)
NL (1) NL150638B (enrdf_load_stackoverflow)
YU (1) YU34949B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453122A1 (de) * 1974-11-08 1976-05-20 Siemens Ag Filter fuer elektrische schwingungen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868933C (de) * 1943-10-07 1953-03-02 Aeg Modulationseinrichtung mit nach- bzw. vorgeschaltetem Filter zur Unterdrueckung eines Seitenbandes
CH491545A (de) * 1968-05-29 1970-05-31 Siemens Ag Elektromechanisches Filter

Also Published As

Publication number Publication date
YU63372A (en) 1979-10-31
AU463059B2 (en) 1975-06-21
AU3995672A (en) 1973-09-20
NL7203266A (enrdf_load_stackoverflow) 1972-09-14
YU34949B (en) 1980-04-30
NL150638B (nl) 1976-08-16
AT310816B (de) 1973-10-25
FR2128816A1 (enrdf_load_stackoverflow) 1972-10-20
IT949935B (it) 1973-06-11
IL38922A0 (en) 1972-05-30
DE2112041A1 (de) 1972-09-28
IL38922A (en) 1975-10-15
BE780534A (fr) 1972-09-11
DE2112041B2 (enrdf_load_stackoverflow) 1974-12-19
FR2128816B1 (enrdf_load_stackoverflow) 1976-06-11

Similar Documents

Publication Publication Date Title
US2101272A (en) Combined magnetostriction and piezoelectric selective device
US2435487A (en) Electromechanical vibrator
GB774043A (en) Sonic transducer with mechanical motion transformer
US3315102A (en) Piezoelectric liquid cleaning device
US2063949A (en) Magnetostrictive vibrator
US1750124A (en) Vibratory system and method
US3225226A (en) Electrical vibrator
US5014321A (en) Wide passband omnidirectional loudspeaker
US4232241A (en) Electric circuit for driving a piezoelectric vibrator
US2014411A (en) Apparatus for electromagnetostrictive transmission and reception
US2572313A (en) Magnetostriction device
US2928057A (en) Electromechanical filter arrangement
US2547027A (en) Vibrating reed controlled oscillator
GB1334650A (en) Circuit arrangements for the frequency conversion of electrical information signals
US3243951A (en) Flexure vibration type electrical vibrator and transistor oscillator utilizing the same
US2709243A (en) Drive system for mechanical filter
US3086182A (en) Mechanical frequency filters
GB957078A (en) Improvements in or relating to circuits for generating ultrasonic oscillations
US3369200A (en) Bending bandpass electromechanical filter with asymmetry for improved selectivity
US2708237A (en) Selective frequency changer
US3028564A (en) Mechanical filter
US5635788A (en) Control circuit for a piezoelectric vibrator
US2002191A (en) Oscillation generator
US2901555A (en) Electromechanical amplifier
US2981905A (en) Electromechanical wave filter

Legal Events

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