DE3686681T2 - Parallelmultiplizierer. - Google Patents
Parallelmultiplizierer.Info
- Publication number
- DE3686681T2 DE3686681T2 DE8686110067T DE3686681T DE3686681T2 DE 3686681 T2 DE3686681 T2 DE 3686681T2 DE 8686110067 T DE8686110067 T DE 8686110067T DE 3686681 T DE3686681 T DE 3686681T DE 3686681 T2 DE3686681 T2 DE 3686681T2
- Authority
- DE
- Germany
- Prior art keywords
- parallel multiplier
- multiplier
- parallel
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/52—Multiplying; Dividing
- G06F7/523—Multiplying only
- G06F7/53—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel
- G06F7/5306—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel with row wise addition of partial products
- G06F7/5312—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel with row wise addition of partial products using carry save adders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60162541A JPS6222146A (ja) | 1985-07-23 | 1985-07-23 | 並列乗算器 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3686681D1 DE3686681D1 (de) | 1992-10-15 |
DE3686681T2 true DE3686681T2 (de) | 1993-02-04 |
Family
ID=15756565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686110067T Expired - Lifetime DE3686681T2 (de) | 1985-07-23 | 1986-07-22 | Parallelmultiplizierer. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4791601A (de) |
EP (1) | EP0210579B1 (de) |
JP (1) | JPS6222146A (de) |
DE (1) | DE3686681T2 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5153847A (en) * | 1986-06-27 | 1992-10-06 | Matsushita Electric Industrial Co., Ltd. | Arithmetic processor using signed digit representation of internal operands |
JPH07111678B2 (ja) * | 1987-05-29 | 1995-11-29 | 松下電器産業株式会社 | 加算装置 |
US5206825A (en) * | 1987-05-27 | 1993-04-27 | Matsushita Electric Industrial Co., Ltd. | Arithmetic processor using signed-digit representation of external operands |
JPS6453228A (en) * | 1987-08-24 | 1989-03-01 | Mitsubishi Electric Corp | Logic circuit for multiplier |
KR920003908B1 (ko) * | 1987-11-19 | 1992-05-18 | 미쓰비시뎅끼 가부시끼가이샤 | 승산기(乘算器) |
JPH07120272B2 (ja) * | 1988-04-12 | 1995-12-20 | 日本電気株式会社 | 算術演算回路 |
JPH0776914B2 (ja) * | 1988-10-18 | 1995-08-16 | 三菱電機株式会社 | 乗算回路 |
US5038315A (en) * | 1989-05-15 | 1991-08-06 | At&T Bell Laboratories | Multiplier circuit |
US5262976A (en) * | 1989-11-13 | 1993-11-16 | Harris Corporation | Plural-bit recoding multiplier |
US5412591A (en) * | 1990-08-09 | 1995-05-02 | Vlsi Technology, Inc. | Schematic compiler for a multi-format high speed multiplier |
US5291431A (en) * | 1991-06-03 | 1994-03-01 | General Electric Company | Array multiplier adapted for tiled layout by silicon compiler |
US5251167A (en) * | 1991-11-15 | 1993-10-05 | Amdahl Corporation | Method and apparatus for processing sign-extension bits generated by modified booth algorithm |
US5361220A (en) * | 1991-11-29 | 1994-11-01 | Fuji Photo Film Co., Ltd. | Discrete cosine transformation with reduced components |
US5477479A (en) * | 1993-03-08 | 1995-12-19 | Nkk Corporation | Multiplying system having multi-stages for processing a digital signal based on the Booth's algorithm |
US5576765A (en) * | 1994-03-17 | 1996-11-19 | International Business Machines, Corporation | Video decoder |
KR960042334A (ko) * | 1995-05-15 | 1996-12-21 | 김주용 | 병렬 독립 다중비트 가산기 |
JP3351672B2 (ja) * | 1995-12-20 | 2002-12-03 | 株式会社東芝 | 加算器 |
JPH09269891A (ja) * | 1996-04-01 | 1997-10-14 | Hitachi Ltd | 部分積加算方法および装置、浮動小数点乗算方法および装置、浮動小数点積和演算方法および装置 |
US6183122B1 (en) * | 1997-09-04 | 2001-02-06 | Cirrus Logic, Inc. | Multiplier sign extension |
US6687722B1 (en) * | 2000-03-16 | 2004-02-03 | Agere Systems, Inc. | High-speed/low power finite impulse response filter |
GB0317570D0 (en) * | 2003-07-26 | 2003-08-27 | Koninkl Philips Electronics Nv | Long-integer multiplier |
JP4170267B2 (ja) * | 2004-07-09 | 2008-10-22 | Necエレクトロニクス株式会社 | 乗算剰余演算器及び情報処理装置 |
JP4180024B2 (ja) * | 2004-07-09 | 2008-11-12 | Necエレクトロニクス株式会社 | 乗算剰余演算器及び情報処理装置 |
US7424507B1 (en) * | 2004-09-30 | 2008-09-09 | National Semiconductor Corporation | High speed, low power, pipelined zero crossing detector that utilizes carry save adders |
US10831445B1 (en) | 2018-09-20 | 2020-11-10 | Groq, Inc. | Multimodal digital multiplication circuits and methods |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4153938A (en) * | 1977-08-18 | 1979-05-08 | Monolithic Memories Inc. | High speed combinatorial digital multiplier |
JPS5663649A (en) * | 1979-10-26 | 1981-05-30 | Nec Corp | Parallel multiplication apparatus |
US4484301A (en) * | 1981-03-10 | 1984-11-20 | Sperry Corporation | Array multiplier operating in one's complement format |
US4646257A (en) * | 1983-10-03 | 1987-02-24 | Texas Instruments Incorporated | Digital multiplication circuit for use in a microprocessor |
US4575812A (en) * | 1984-05-31 | 1986-03-11 | Motorola, Inc. | X×Y Bit array multiplier/accumulator circuit |
-
1985
- 1985-07-23 JP JP60162541A patent/JPS6222146A/ja active Granted
-
1986
- 1986-07-22 US US06/888,080 patent/US4791601A/en not_active Expired - Lifetime
- 1986-07-22 DE DE8686110067T patent/DE3686681T2/de not_active Expired - Lifetime
- 1986-07-22 EP EP86110067A patent/EP0210579B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6222146A (ja) | 1987-01-30 |
DE3686681D1 (de) | 1992-10-15 |
EP0210579A2 (de) | 1987-02-04 |
EP0210579B1 (de) | 1992-09-09 |
EP0210579A3 (en) | 1990-01-10 |
US4791601A (en) | 1988-12-13 |
JPH0456339B2 (de) | 1992-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) |