GB1228795A - - Google Patents

Info

Publication number
GB1228795A
GB1228795A GB1228795DA GB1228795A GB 1228795 A GB1228795 A GB 1228795A GB 1228795D A GB1228795D A GB 1228795DA GB 1228795 A GB1228795 A GB 1228795A
Authority
GB
United Kingdom
Prior art keywords
khz
control amplifier
fed
pass filter
signal path
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
Other languages
English (en)
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 filed Critical
Publication of GB1228795A publication Critical patent/GB1228795A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
GB1228795D 1967-05-31 1968-05-29 Expired GB1228795A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR108518 1967-05-31

Publications (1)

Publication Number Publication Date
GB1228795A true GB1228795A (fr) 1971-04-21

Family

ID=8632001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228795D Expired GB1228795A (fr) 1967-05-31 1968-05-29

Country Status (1)

Country Link
GB (1) GB1228795A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747821A1 (de) * 1976-11-08 1978-05-11 Philips Nv Verstaerkeranordnung fuer akustische signale mit mitteln zum unterdruecken unerwuenschter stoersignale
EP0235848A1 (fr) * 1986-02-18 1987-09-09 Koninklijke Philips Electronics N.V. Circuit d'amplification à commande automatique
US5371803A (en) * 1990-08-31 1994-12-06 Bellsouth Corporation Tone reduction circuit for headsets
US5701352A (en) * 1994-07-14 1997-12-23 Bellsouth Corporation Tone suppression automatic gain control for a headset

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747821A1 (de) * 1976-11-08 1978-05-11 Philips Nv Verstaerkeranordnung fuer akustische signale mit mitteln zum unterdruecken unerwuenschter stoersignale
EP0235848A1 (fr) * 1986-02-18 1987-09-09 Koninklijke Philips Electronics N.V. Circuit d'amplification à commande automatique
US5371803A (en) * 1990-08-31 1994-12-06 Bellsouth Corporation Tone reduction circuit for headsets
US5701352A (en) * 1994-07-14 1997-12-23 Bellsouth Corporation Tone suppression automatic gain control for a headset

Similar Documents

Publication Publication Date Title
GB1228795A (fr)
ES323485A1 (es) Un aparato receptor de television.
ES404145A1 (es) Un aparato para recepcion de una senal portadora modulada por una senal moduladora.
ES450170A1 (es) Una disposicion de circuito para un detector de interrup- cion, para un aparato para reproducir senales registradas enun portador de registro.
ES385066A1 (es) Una disposicion de circuito para la supresion de interfe- rencias en un receptor de senales electricas.
GB1094357A (en) Improvements in or relating to speech filters
GB1044396A (en) Voice operated gain adjusting device
GB1470456A (en) Automatic gain control circuits
ES449499A1 (es) Una disposicion de circuito para un detector de caidas de senal y un aparato par la reproduccion de senales.
GB983194A (en) Apparatus for digitally encoding sounds
ES323378A1 (es) Una disposicion de control automatico de ganancia para receptores de señales de radio.
JPS57210733A (en) Receiver
JPS57188163A (en) Signal discriminator
GB1427029A (en) Radio receiving apparatus
JPS5684013A (en) Automatic level regulator for sound signal
JPS56117382A (en) Read-in control system in magnetic recording and playback device
JPS5733416A (en) Automatic gain control processing system
JPS5733825A (en) Receiver
JPS5350702A (en) Automatic adjusting system for separation degree between before and behind
ES313964A1 (es) Una disposicion de circuito para el control automatico de volumen de amplificadores de baja frecuencia.
GB1415899A (en) Recording level control apparatus and method
JPS6468083A (en) Signal discriminating device
JPS5723332A (en) Muting device
FR2367384A1 (fr) Procede de controle de la qualite d'un signal de donnees transmis en bande de base
JPS5792463A (en) Discoidal information recording medium and its reproduction system

Legal Events

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