CH564286A5CH1478474ACH1478474ACH564286A5CH 564286 A5CH564286 A5CH 564286A5CH 1478474 ACH1478474 ACH 1478474ACH 1478474 ACH1478474 ACH 1478474ACH 564286 A5CH564286 A5CH 564286A5
Authority
CH
Switzerland
Application number
CH1478474A
Original Assignee
Dolby Laboratories Inc
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
Priority claimed from GB2040672Aexternal-prioritypatent/GB1432763A/en
Application filed by Dolby Laboratories IncfiledCriticalDolby Laboratories Inc
Publication of CH564286A5publicationCriticalpatent/CH564286A5/xx
H03G7/00—Volume compression or expansion in amplifiers
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
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
H03H11/0405—Non-linear filters
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
Landscapes
Physics & Mathematics
(AREA)
Nonlinear Science
(AREA)
Tone Control, Compression And Expansion, Limiting Amplitude
(AREA)