GB1308636A - Electrical filters enabling independent control of resonance frequenc and of bandpass especially for a speech synthesizer - Google Patents

Electrical filters enabling independent control of resonance frequenc and of bandpass especially for a speech synthesizer

Info

Publication number
GB1308636A
GB1308636A GB2993170A GB2993170A GB1308636A GB 1308636 A GB1308636 A GB 1308636A GB 2993170 A GB2993170 A GB 2993170A GB 2993170 A GB2993170 A GB 2993170A GB 1308636 A GB1308636 A GB 1308636A
Authority
GB
United Kingdom
Prior art keywords
comparator
amplifier
filters
input
impedances
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
GB2993170A
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Publication of GB1308636A publication Critical patent/GB1308636A/en
Priority to US05/506,846 priority Critical patent/US3941748A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
GB2993170A 1969-06-20 1970-08-19 Electrical filters enabling independent control of resonance frequenc and of bandpass especially for a speech synthesizer Expired GB1308636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/506,846 US3941748A (en) 1970-08-19 1974-09-17 Process for preparing aromatic polymers in presence of alkali metal fluoride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6920702A FR2045207A5 (enrdf_load_stackoverflow) 1969-06-20 1969-06-20

Publications (1)

Publication Number Publication Date
GB1308636A true GB1308636A (en) 1973-02-21

Family

ID=9036097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2993170A Expired GB1308636A (en) 1969-06-20 1970-08-19 Electrical filters enabling independent control of resonance frequenc and of bandpass especially for a speech synthesizer

Country Status (3)

Country Link
DE (1) DE2030324A1 (enrdf_load_stackoverflow)
FR (1) FR2045207A5 (enrdf_load_stackoverflow)
GB (1) GB1308636A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1083533B (it) * 1977-06-20 1985-05-21 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la generazione di un segnale tipo voce per l'effettuazione di misure oggettive delle prestazioni di apparecchiature facenti parte di sistemi di trasmissione di segnali vocali

Also Published As

Publication number Publication date
DE2030324A1 (enrdf_load_stackoverflow) 1970-12-23
FR2045207A5 (enrdf_load_stackoverflow) 1971-02-26

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees