DE69031069T2 - Preisgünstiger universeller digitaler Amplitudensteller - Google Patents

Preisgünstiger universeller digitaler Amplitudensteller

Info

Publication number
DE69031069T2
DE69031069T2 DE69031069T DE69031069T DE69031069T2 DE 69031069 T2 DE69031069 T2 DE 69031069T2 DE 69031069 T DE69031069 T DE 69031069T DE 69031069 T DE69031069 T DE 69031069T DE 69031069 T2 DE69031069 T2 DE 69031069T2
Authority
DE
Germany
Prior art keywords
digital amplitude
amplitude adjuster
universal digital
inexpensive universal
inexpensive
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 - Fee Related
Application number
DE69031069T
Other languages
English (en)
Other versions
DE69031069D1 (de
Inventor
Walter G Kutzavitch
Eugene J Rosenthal
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.)
AT&T Corp
Original Assignee
AT&T 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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69031069D1 publication Critical patent/DE69031069D1/de
Publication of DE69031069T2 publication Critical patent/DE69031069T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
DE69031069T 1990-02-20 1990-12-07 Preisgünstiger universeller digitaler Amplitudensteller Expired - Fee Related DE69031069T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/482,443 US5027083A (en) 1990-02-20 1990-02-20 General purpose low cost digital amplitude regulator

Publications (2)

Publication Number Publication Date
DE69031069D1 DE69031069D1 (de) 1997-08-21
DE69031069T2 true DE69031069T2 (de) 1997-10-30

Family

ID=23916094

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69031069T Expired - Fee Related DE69031069T2 (de) 1990-02-20 1990-12-07 Preisgünstiger universeller digitaler Amplitudensteller

Country Status (9)

Country Link
US (1) US5027083A (de)
EP (1) EP0443250B1 (de)
JP (1) JPH0656937B2 (de)
KR (1) KR950005174B1 (de)
CA (1) CA2031580C (de)
DE (1) DE69031069T2 (de)
ES (1) ES2103728T3 (de)
MX (1) MX170806B (de)
SG (1) SG42814A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003549A1 (en) * 1991-07-31 1993-02-18 Euphonix, Inc. Automated audio mixer
US5781456A (en) * 1997-07-11 1998-07-14 Space Systems/Loral, Inc. Software select and test
US7923238B2 (en) * 2006-02-10 2011-04-12 Bio-Rad Laboratories, Inc. Multi-channel electroporation system
US7750605B2 (en) * 2006-09-21 2010-07-06 Bio-Rad Laboratories, Inc. Controlling an electrical signal sent to a sample load using a pulse modulated resistance
US7576549B2 (en) * 2006-09-21 2009-08-18 Bio-Rad Laboratories, Inc. Methods for measuring sample resistance in electroporation
JP2008205560A (ja) * 2007-02-16 2008-09-04 Fujitsu Ltd 可変利得増幅回路、フィルタ回路、及び半導体装置
TWI396389B (zh) * 2007-06-04 2013-05-11 Quanta Comp Inc 複合式開關控制系統
JP2011091572A (ja) * 2009-10-21 2011-05-06 Sanyo Electric Co Ltd 可変利得増幅回路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2204333A5 (de) * 1972-10-20 1974-05-17 Thomson Csf
DE2740567A1 (de) * 1977-09-08 1979-03-22 Pichler Heinrich Daempfungsglied fuer tonfrequenzsignale
JPS56162516A (en) * 1980-05-20 1981-12-14 Sanyo Electric Co Ltd Power amplifying circuit on pulse-width modulation system
US4435679A (en) * 1981-05-26 1984-03-06 General Electric Company Programmable signal amplitude control circuits
US4468631A (en) * 1982-05-24 1984-08-28 Rca Corporation Amplitude control apparatus
JPS6095721U (ja) * 1983-12-07 1985-06-29 パイオニア株式会社 電子ボリユ−ム回路
US4868519A (en) * 1988-11-02 1989-09-19 Dnic Brokerage Company Microprocessor-controlled amplifier

Also Published As

Publication number Publication date
EP0443250A3 (en) 1991-12-27
ES2103728T3 (es) 1997-10-01
CA2031580A1 (en) 1991-08-21
JPH0656937B2 (ja) 1994-07-27
JPH05335852A (ja) 1993-12-17
KR950005174B1 (ko) 1995-05-19
US5027083A (en) 1991-06-25
SG42814A1 (en) 1997-10-17
EP0443250B1 (de) 1997-07-16
KR910016135A (ko) 1991-09-30
MX170806B (es) 1993-09-15
EP0443250A2 (de) 1991-08-28
DE69031069D1 (de) 1997-08-21
CA2031580C (en) 1994-03-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee