GB1415805A - Mixing circuits including a variable resistor - Google Patents

Mixing circuits including a variable resistor

Info

Publication number
GB1415805A
GB1415805A GB4924473A GB4924473A GB1415805A GB 1415805 A GB1415805 A GB 1415805A GB 4924473 A GB4924473 A GB 4924473A GB 4924473 A GB4924473 A GB 4924473A GB 1415805 A GB1415805 A GB 1415805A
Authority
GB
United Kingdom
Prior art keywords
contact
terminal
engages
paths
earthed
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
GB4924473A
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 GB1415805A publication Critical patent/GB1415805A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
    • H01C10/36—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path structurally combined with switching arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/16—Adjustable resistors including plural resistive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Adjustable Resistors (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)

Abstract

1415805 Mixing and fading circuits SONY CORP 23 Oct 1973 [24 Oct 1972] 49244/73 Heading H4J [Also in Division H1] A mixing circuit includes a variable resistor comprising a resistance element la which is engaged by a slide contact 6 and has end terminals 11, 12 to which respective input signals are applied, a switch means being provided so that when the contact 6 engages one of the terminals the other terminal is either earthed or open-circuited. Thus one input to a mixing circuit can be suppressed. In a first embodiment, Fig. 3, 4, signals from a microphone amplifier 2 and an equalizer amplifier 3 are fed to a mixing circuit, of which the output 4 is connected to contact 6 mounted on a rotatable shaft 7. An acrcuate resistance element 1a is provided on a substrate 8 and the switch means comprises two arcuate conductive paths 15, 16 on substrates 9, 10, earthed terminal members 18, 19 being provided adjacent to, but insulated from, one end of each path. The other ends 17, 20 of paths 15, 16 are respectively connected to resistance terminals 11, 12. Engaging paths 15, 16 are contacts 23, 24 ganged on shaft 7 with contact 6, so that when contact 6 engages terminal 11, contact 24 bridges the gap between terminal 19 and path 16, to earth terminal 12. Similarly when contact 6 engages terminal 12, terminal 11 is earthed. Two resistance elements (1L, 1R) may be used in a two - channel stereophonic reproduction apparatus (Fig. 5, not shown). In a modification (Fig. 6, not shown) the two input signals are fed to the contacts 23, 24 which at respective opposite limits of their rotation are disconnected from paths 15, 16. In a second embodiment, Fig. 8B, the switch means comprises a cam 31 mounted on the shaft 7. When contact 6 engages terminal 12 the cam earths terminal 11 by connecting a movable contact 32a to a fixed contact 32b (Fig. 8A, not shown). Similarly when contact 6 engages terminal 11, the cam earths terminal 12 (Fig. 8C, not shown).
GB4924473A 1972-10-24 1973-10-23 Mixing circuits including a variable resistor Expired GB1415805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972122924U JPS5313002Y2 (en) 1972-10-24 1972-10-24

Publications (1)

Publication Number Publication Date
GB1415805A true GB1415805A (en) 1975-11-26

Family

ID=14847963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4924473A Expired GB1415805A (en) 1972-10-24 1973-10-23 Mixing circuits including a variable resistor

Country Status (9)

Country Link
US (1) US3845447A (en)
JP (1) JPS5313002Y2 (en)
BR (1) BR7308319D0 (en)
CA (1) CA989030A (en)
DE (1) DE2353083C2 (en)
FR (1) FR2204019B1 (en)
GB (1) GB1415805A (en)
IT (1) IT998932B (en)
NL (1) NL178285C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153596A (en) * 1984-01-24 1985-08-21 Piher Navarra Sa Rotary potentiometer and switch
GB2269056A (en) * 1992-07-20 1994-01-26 Sony Corp Linear control arrangements including an integral potentiometer and switch

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216374Y2 (en) * 1972-10-28 1977-04-13
US4052428A (en) * 1975-12-15 1977-10-04 Stauffer Chemical Company Stable aluminum alkoxide solutions
US8253007B1 (en) * 2009-11-18 2012-08-28 Richard Ned Steinberger Potentiometer control for musical instruments

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931799A (en) * 1932-03-03 1933-10-24 Cutler Hammer Inc Method of and apparatus for controlling electric circuits
DE1680975U (en) * 1953-05-28 1954-08-05 Siemens Ag ROTATING RESISTANCE WITH CONTACT SET FOR ADDITIONAL SWITCHING PURPOSES.
US2783397A (en) * 1953-07-27 1957-02-26 Switchcraft Mixer unit for a plurality of incoming signals
US2942221A (en) * 1957-07-11 1960-06-21 Cts Corp Sub-miniature concentric tandem variable resistor and switch control
DE1833671U (en) * 1961-05-12 1961-06-29 Gossen & Co Gmbh P SWITCHING POTENTIOMETER.
US3047825A (en) * 1961-10-23 1962-07-31 Electro Solid Controls Inc Combination variable resistor and switch
US3375446A (en) * 1964-09-10 1968-03-26 Gen Motors Corp Combination radio receiver volume and squelch control
US3587027A (en) * 1969-05-28 1971-06-22 Spectrol Electronics Corp Combined potentiometer and switching structure
US3633146A (en) * 1969-06-27 1972-01-04 Matsushita Electric Ind Co Ltd Variable resistor of sliding type
US3629775A (en) * 1970-06-19 1971-12-21 Gulf & Western Industries Stereo balance and fader potentiometer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153596A (en) * 1984-01-24 1985-08-21 Piher Navarra Sa Rotary potentiometer and switch
GB2269056A (en) * 1992-07-20 1994-01-26 Sony Corp Linear control arrangements including an integral potentiometer and switch
GB2269056B (en) * 1992-07-20 1996-06-05 Sony Corp Linear control arrangements

Also Published As

Publication number Publication date
FR2204019B1 (en) 1977-06-24
FR2204019A1 (en) 1974-05-17
NL7314630A (en) 1974-04-26
DE2353083A1 (en) 1974-05-09
IT998932B (en) 1976-02-20
DE2353083C2 (en) 1983-04-28
CA989030A (en) 1976-05-11
JPS4977445U (en) 1974-07-04
JPS5313002Y2 (en) 1978-04-08
NL178285B (en) 1985-09-16
BR7308319D0 (en) 1974-08-22
NL178285C (en) 1986-02-17
US3845447A (en) 1974-10-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19931022