GB1398732A - Signal processing system - Google Patents

Signal processing system

Info

Publication number
GB1398732A
GB1398732A GB3453572A GB3453572A GB1398732A GB 1398732 A GB1398732 A GB 1398732A GB 3453572 A GB3453572 A GB 3453572A GB 3453572 A GB3453572 A GB 3453572A GB 1398732 A GB1398732 A GB 1398732A
Authority
GB
United Kingdom
Prior art keywords
transistor
terminal
amplifier
variable filter
switch
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
GB3453572A
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of GB1398732A publication Critical patent/GB1398732A/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
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression

Landscapes

  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Amplifiers (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
GB3453572A 1971-07-24 1972-07-24 Signal processing system Expired GB1398732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5552971A JPS5648883B1 (enrdf_load_stackoverflow) 1971-07-24 1971-07-24

Publications (1)

Publication Number Publication Date
GB1398732A true GB1398732A (en) 1975-06-25

Family

ID=13001242

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3453572A Expired GB1398732A (en) 1971-07-24 1972-07-24 Signal processing system
GB4724574A Expired GB1398733A (en) 1971-07-24 1972-07-24 Variable filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB4724574A Expired GB1398733A (en) 1971-07-24 1972-07-24 Variable filter

Country Status (16)

Country Link
JP (1) JPS5648883B1 (enrdf_load_stackoverflow)
AT (1) AT351826B (enrdf_load_stackoverflow)
AU (1) AU476805B2 (enrdf_load_stackoverflow)
BE (1) BE786629A (enrdf_load_stackoverflow)
CA (1) CA997276A (enrdf_load_stackoverflow)
CH (1) CH577770A5 (enrdf_load_stackoverflow)
DE (1) DE2236173C3 (enrdf_load_stackoverflow)
DK (1) DK146140C (enrdf_load_stackoverflow)
FR (1) FR2147146B1 (enrdf_load_stackoverflow)
GB (2) GB1398732A (enrdf_load_stackoverflow)
IT (1) IT961650B (enrdf_load_stackoverflow)
MY (2) MY7900106A (enrdf_load_stackoverflow)
NL (1) NL175570C (enrdf_load_stackoverflow)
NO (1) NO136325C (enrdf_load_stackoverflow)
SE (1) SE388330B (enrdf_load_stackoverflow)
ZA (1) ZA725084B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306201A (en) 1978-09-22 1981-12-15 Sony Corporation Signal processing circuit
WO2008135300A1 (de) 2007-05-07 2008-11-13 Hettich-Heinze Gmbh & Co. Kg Antriebseinrichtung für einen beschlag

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263624A (en) * 1978-12-12 1981-04-21 Dolby Laboratories Licensing Corporation Analog recording on magnetic media
DE3115683C2 (de) * 1981-04-18 1983-07-28 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Schaltungsanordnung zur verzögerten, automatischen Verstärkungsregelung
JPS6220405A (ja) * 1985-07-18 1987-01-29 Pioneer Electronic Corp 増幅度調整回路

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE753495A (fr) * 1969-07-21 1970-12-16 Dolby Laboratories Inc Filtres limiteurs perfectionnes pour systemes attenuateurs de bruit. (

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306201A (en) 1978-09-22 1981-12-15 Sony Corporation Signal processing circuit
WO2008135300A1 (de) 2007-05-07 2008-11-13 Hettich-Heinze Gmbh & Co. Kg Antriebseinrichtung für einen beschlag

Also Published As

Publication number Publication date
BE786629A (fr) 1972-11-16
NL175570C (nl) 1984-11-16
DE2236173C3 (de) 1982-02-11
MY7900106A (en) 1979-12-31
IT961650B (it) 1973-12-10
DK146140B (da) 1983-07-04
CA997276A (en) 1976-09-21
FR2147146B1 (enrdf_load_stackoverflow) 1978-02-10
NO136325B (enrdf_load_stackoverflow) 1977-05-09
MY7900107A (en) 1979-12-31
ATA636372A (de) 1979-01-15
DE2236173A1 (de) 1973-02-08
DK146140C (da) 1983-11-28
SE388330B (sv) 1976-09-27
DE2236173B2 (de) 1981-06-19
FR2147146A1 (enrdf_load_stackoverflow) 1973-03-09
AT351826B (de) 1979-08-10
ZA725084B (en) 1973-04-25
CH577770A5 (enrdf_load_stackoverflow) 1976-07-15
AU4490772A (en) 1974-01-31
NO136325C (no) 1977-08-17
NL7210201A (enrdf_load_stackoverflow) 1973-01-26
AU476805B2 (en) 1976-10-07
GB1398733A (en) 1975-06-25
NL175570B (nl) 1984-06-18
JPS5648883B1 (enrdf_load_stackoverflow) 1981-11-18

Similar Documents

Publication Publication Date Title
US3944853A (en) Video recorder pre-emphasis, de-emphasis circuits
US3379839A (en) Magnetic recording dynamic range compressor/expander system
US3436490A (en) Adjustable equalizer circuit for magnetic reproducer
GB1401336A (en) Expander circuit for a compression and expansion system
GB1398732A (en) Signal processing system
US4369509A (en) Gain control circuit for noise reduction system
US3911371A (en) Signal transmission system
US3566294A (en) Sound effect amplifier
GB1016938A (en) Improved equalization circuit
US3946249A (en) Signal control circuit
US4158820A (en) Low level preamplifier circuit
US2369952A (en) Background noise suppressor
GB1031145A (en) Improvements in or relating to audio-frequency amplifiers
US2358630A (en) Amplification system
JPS6121009U (ja) 再生前置増幅器
US4236253A (en) Monostable multivibrator for use in pulse count demodulator or the like
US3346703A (en) Two track transducing system with means to extend dynamic range
US3423540A (en) Record-reproduce circuit
CA1048640A (en) Power supply circuit
US3873992A (en) Magnetic recording system with reduction of high frequency signal distortion in vicinity of saturation level
US3557309A (en) Amplifier with automatic gain control
US3875521A (en) Automatic gain control circuit
GB1196323A (en) Preamplifier Arrangements for use in a system for Reproducing Signals from a Magnetic Medium such as a Tape
US3977023A (en) Tape recorder
US5043676A (en) Automatic level control circuit

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years