DE69730545D1 - Arithmetische Einheit - Google Patents

Arithmetische Einheit

Info

Publication number
DE69730545D1
DE69730545D1 DE69730545T DE69730545T DE69730545D1 DE 69730545 D1 DE69730545 D1 DE 69730545D1 DE 69730545 T DE69730545 T DE 69730545T DE 69730545 T DE69730545 T DE 69730545T DE 69730545 D1 DE69730545 D1 DE 69730545D1
Authority
DE
Germany
Prior art keywords
arithmetic unit
arithmetic
unit
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
DE69730545T
Other languages
English (en)
Other versions
DE69730545T2 (de
Inventor
Ryoji Maruyama
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE69730545D1 publication Critical patent/DE69730545D1/de
Publication of DE69730545T2 publication Critical patent/DE69730545T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Phase Differences (AREA)
DE69730545T 1996-03-01 1997-02-28 Arithmetische Einheit Expired - Fee Related DE69730545T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4487796 1996-03-01
JP4487796 1996-03-01

Publications (2)

Publication Number Publication Date
DE69730545D1 true DE69730545D1 (de) 2004-10-14
DE69730545T2 DE69730545T2 (de) 2005-09-01

Family

ID=12703731

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69730545T Expired - Fee Related DE69730545T2 (de) 1996-03-01 1997-02-28 Arithmetische Einheit

Country Status (6)

Country Link
US (1) US5924050A (de)
EP (1) EP0793106B1 (de)
KR (1) KR100227203B1 (de)
CN (1) CN1104693C (de)
DE (1) DE69730545T2 (de)
TW (1) TW396276B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3290946B2 (ja) * 1998-03-10 2002-06-10 株式会社東芝 電力演算装置
JP3312006B2 (ja) 1999-03-05 2002-08-05 株式会社東芝 無効電力演算装置及び無効電力量測定装置
US6417792B1 (en) * 2000-01-18 2002-07-09 Cirrus Logic, Inc. Single phase bi-directional electrical measurement systems and methods using ADCs
SG118136A1 (en) * 2002-05-22 2006-01-27 Sylvester Chang Joseph A digital multiplier with reduced spurious switching by means of latch adders
US7079577B2 (en) * 2004-09-08 2006-07-18 Atmel Corporation Wide window decoder circuit for dual phase pulse modulation
JP5100446B2 (ja) 2008-02-28 2012-12-19 東光東芝メーターシステムズ株式会社 電力量計
DE102008051421A1 (de) * 2008-10-11 2010-04-15 Robert Bosch Gmbh Vorrichtung und Verfahren zur Messung elektrischer Kenngrößen
US9201104B2 (en) * 2012-10-08 2015-12-01 Tyco Electronics Corporation Intelligent power sensing device
US9588152B2 (en) * 2013-01-09 2017-03-07 Flextronics Ap, Llc Digital signal processing method for measurement of AC voltage with power converters at light load operation
CN110289655B (zh) * 2019-07-04 2020-12-11 北京智芯微电子科技有限公司 输入电压模式的识别方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255707A (en) * 1979-08-07 1981-03-10 Westinghouse Electric Corp. Electrical energy meter
JPH0821049B2 (ja) * 1987-09-24 1996-03-04 株式会社東芝 乗算器
US4999799A (en) * 1989-01-09 1991-03-12 Board Of Governors For Higher Education, State Of Rhode Island And Providence Plantations Signal processing apparatus for generating a fourier transform
GB2239097B (en) * 1989-12-18 1993-08-11 Gen Electric Co Plc Electrical power measuring devices
JP3022595B2 (ja) * 1990-11-30 2000-03-21 日本電気株式会社 電子式電力量計
US5349676A (en) * 1991-02-11 1994-09-20 General Electric Company Data acquisition systems with programmable bit-serial digital signal processors
US5229713A (en) * 1991-04-25 1993-07-20 General Electric Company Method for determining electrical energy consumption
JP3080207B2 (ja) * 1993-01-06 2000-08-21 三菱電機株式会社 電子式電力量計

Also Published As

Publication number Publication date
EP0793106A2 (de) 1997-09-03
TW396276B (en) 2000-07-01
DE69730545T2 (de) 2005-09-01
KR970066577A (ko) 1997-10-13
US5924050A (en) 1999-07-13
CN1163436A (zh) 1997-10-29
EP0793106B1 (de) 2004-09-08
KR100227203B1 (ko) 1999-10-15
EP0793106A3 (de) 1998-05-20
CN1104693C (zh) 2003-04-02

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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