KR100505491B1 - 고속 연산기를 위한 4:2 비트 압축기 - Google Patents
고속 연산기를 위한 4:2 비트 압축기 Download PDFInfo
- Publication number
- KR100505491B1 KR100505491B1 KR10-2002-0060215A KR20020060215A KR100505491B1 KR 100505491 B1 KR100505491 B1 KR 100505491B1 KR 20020060215 A KR20020060215 A KR 20020060215A KR 100505491 B1 KR100505491 B1 KR 100505491B1
- Authority
- KR
- South Korea
- Prior art keywords
- full adder
- carry
- signals
- compressor
- input
- Prior art date
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- 210000003813 thumb Anatomy 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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
- G06F7/5318—Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel with column wise addition of partial products, e.g. using Wallace tree, Dadda counters
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- 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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Cell Name | Unit Area | Unit Delay | |
INV | 0.67 | 0.692 | tLHA |
NAND2 | 1 | 1 | tLHB |
NAND3 | 1.33 | 1.189 | tLHC |
AND2 | 1.33 | 1.176 | tHLB |
OR2 | 1.33 | 1.478 | tHLB |
OR3 | 1.67 | 2.195 | tHLB |
XOR2 | 2.33 | 1.925 | tLHA |
XNOR2 | 2.33 | 1.943 | tLHA |
MUX21 | 2.33 | 1.686 | tLHS |
4:2 | 17.32 | 5.775 | tLH |
MOD 4:2 | 18.98 | 5.536 | tLH |
Claims (7)
- 입력되는 신호를 지연 시간에 의해 라우팅하는 단계;상기 라우팅된 신호 중 먼저 도착하는 2개의 입력신호와 캐리를 전가산기에서 계산하는 단계; 및상기 라우팅된 신호는 전 단의 연산 지연 시간이 각각 다르기 때문에 이러한 각각의 지연 시간을 갖는 입력 신호중에 가장 늦게 도착하는 2개의 입력신호와 전가산기에서 계산된 신호를 4:2 비트 압축기의 선택 신호로 사용하는 단계로 이루어짐을 특징으로 하는 고속 연산기를 위한 4:2 비트 압축기 연산방법.
- 삭제
- 4:2 비트 압축기에 있어서,전파 캐리 성분이 되는 3-입력 NAND 게이트와 선택신호를 출력하는 XOR 게이트로 구성된 전가산기; 및상기 전가산기의 선택신호와 입력신호에 의해 썸과 캐리를 각각 결정하는 2개의 선택기로 구성됨을 특징으로 하는 고속 연산기를 위한 4:2 비트 압축기.
- 삭제
- 제 3항에 있어서,상기 전가산기는 다음 비트 압축기의 입력으로 들어가는 전파 캐리 성분이 되는 3-입력 NAND 게이트의 결과 값을 갖는 것을 특징으로 하는 고속 연산기를 위한 4:2 비트 압축기.
- 제 3항에 있어서,상기 전가산기는 썸과 캐리를 결정하는 선택 신호가 되는 XOR 결과 값을 갖는 것을 특징으로 하는 고속 연산기를 위한 4:2 비트 압축기.
- 제 6항에 있어서,상기 썸과 캐리는 비교적 느린 지연 시간을 갖는 두개의 신호 I2, I3를 가지고, 전가산기에서 연산된 Mux_Sel 성분이 1 또는 0에 따라 전가산기의 썸 성분 전파 결과 값을 고려한 결과 값을 미리 계산하는 것을 특징으로 하는 고속 연산기를 위한 4:2 비트 압축기.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0060215A KR100505491B1 (ko) | 2002-10-02 | 2002-10-02 | 고속 연산기를 위한 4:2 비트 압축기 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0060215A KR100505491B1 (ko) | 2002-10-02 | 2002-10-02 | 고속 연산기를 위한 4:2 비트 압축기 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040029800A KR20040029800A (ko) | 2004-04-08 |
KR100505491B1 true KR100505491B1 (ko) | 2005-08-03 |
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KR10-2002-0060215A KR100505491B1 (ko) | 2002-10-02 | 2002-10-02 | 고속 연산기를 위한 4:2 비트 압축기 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980045011A (ko) * | 1996-12-09 | 1998-09-15 | 양승택 | 씨피엘(cpl) 로직을 이용한 고속 4-2 가산기의 구조 |
KR19990021580A (ko) * | 1997-08-30 | 1999-03-25 | 김영환 | 논리회로를 이용한 4-2 컴프레서 |
US5920498A (en) * | 1996-08-29 | 1999-07-06 | Fujitsu Limited | Compression circuit of an adder circuit |
JP2000056949A (ja) * | 1998-08-10 | 2000-02-25 | Mitsubishi Electric Corp | 4−2コンプレッサ回路および乗算器 |
KR20020056222A (ko) * | 2000-12-29 | 2002-07-10 | 윤종용 | 고속 저전력 4-2 압축기 |
-
2002
- 2002-10-02 KR KR10-2002-0060215A patent/KR100505491B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5920498A (en) * | 1996-08-29 | 1999-07-06 | Fujitsu Limited | Compression circuit of an adder circuit |
KR19980045011A (ko) * | 1996-12-09 | 1998-09-15 | 양승택 | 씨피엘(cpl) 로직을 이용한 고속 4-2 가산기의 구조 |
KR19990021580A (ko) * | 1997-08-30 | 1999-03-25 | 김영환 | 논리회로를 이용한 4-2 컴프레서 |
JP2000056949A (ja) * | 1998-08-10 | 2000-02-25 | Mitsubishi Electric Corp | 4−2コンプレッサ回路および乗算器 |
KR20020056222A (ko) * | 2000-12-29 | 2002-07-10 | 윤종용 | 고속 저전력 4-2 압축기 |
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KR20040029800A (ko) | 2004-04-08 |
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