ES2115319T3 - Aparato contador reversible. - Google Patents
Aparato contador reversible.Info
- Publication number
- ES2115319T3 ES2115319T3 ES95303748T ES95303748T ES2115319T3 ES 2115319 T3 ES2115319 T3 ES 2115319T3 ES 95303748 T ES95303748 T ES 95303748T ES 95303748 T ES95303748 T ES 95303748T ES 2115319 T3 ES2115319 T3 ES 2115319T3
- Authority
- ES
- Spain
- Prior art keywords
- counter cell
- cell circuit
- output
- significant
- toggle
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/40—Gating or clocking signals applied to all stages, i.e. synchronous counters
- H03K23/50—Gating or clocking signals applied to all stages, i.e. synchronous counters using bi-stable regenerative trigger circuits
- H03K23/56—Reversible counters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/004—Counters counting in a non-natural counting order, e.g. random counters
- H03K23/005—Counters counting in a non-natural counting order, e.g. random counters using minimum change code, e.g. Gray Code
Landscapes
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Electrophonic Musical Instruments (AREA)
- Selective Calling Equipment (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Processing Of Color Television Signals (AREA)
- Electronic Switches (AREA)
Abstract
UN APARATO PARA CONTAR EVENTOS DE UNA ENTRADA PARTICULAR DURANTE UNA PLURALIDAD DE PERIODOS SUCESIVOS. EL APARATO COMPRENDE UN TERMINAL DE ENTRADA (18) PARA RECIBIR LA ENTRADA,UN CIRCUITO GENERADOR DE SEÑAL DE DISPARO (12) PARA GENERAR UNA SEÑAL DE DISPARO PARA MARCAR LA PLURALIDAD DE PERIODOS, Y UNA PLURALIDAD DE N CIRCUITOS DE CELULAS CONTADORAS (16{SUB,0},....16{SUB,N}) PARA EFECTUAR EL RECUENTO EN N BITS. CADA CIRCUITO DE CELULAS CONTADORAS GENERA AL MENOS UNA SALIDA DE BITS (Q{SUB,I}), UNA SALIDA DE DISPARO RESPECTIVA (T{SUB,I}), Y SALIDA PORTADORA RESPECTIVA (C{SUB,I}). LOS CIRCUITOS DE CELULA CONTADORA (16{SUB,O),....16{SUB,N}) ESTAN DISPUESTOS EN ORDEN JERARQUICO A PARTIR DE UN CIRCUITO DE CELULA CONTADOR MENOS SIGNIFICANTE (16{SUB,0}) A AL MENOS UN CIRCUITO DE CELULA CONTADORA MAS SIGNIFICANTE (16{SUB,N}). CADA UNO DE LOS CIRCUITOS DE CELULA CONTADORA RESPECTIVOS SE ACOPLA AL SIGUIENTE CIRCUITO DE CELULA CONTADORA MAS SIGNIFICANTE Y PREVE LA SALIDA DE DISPARO RESPECTIVA AL SIGUIENTE CIRCUITO DE CELULA CONTADORA DE SALIDA DE DISPARO MAS SIGNIFICANTE COMO UNA ENTRADA DE DISPARO RESPECTIVO, PREVE LA SALIDA PORTADORA RESPECTIVA AL SIGUIENTE CIRCUITO DE CELULA CONTADORA MAS SIGNIFICANTE COMO LA ENTRADA PORTADORA RESPECTIVA, SALVO QUE EL CIRCUITO DE CELULA CONTADORA MAS SIGNIFICANTE (16{SUB,N}) RECIBE LA ENTRADA DE DISPARO RESPECTIVA (T{SUB, N}) DE LA SALIDA PORTADORA RESPECTIVA (C[SUB, N-1}) DEL CIRCUITO DE CELULA CONTADORA DOS VECES MENOS SIGNIFICANTES (16{SUB,N-2}).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/257,543 US5428654A (en) | 1994-06-09 | 1994-06-09 | Up/down counter apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2115319T3 true ES2115319T3 (es) | 1998-06-16 |
Family
ID=22976718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES95303748T Expired - Lifetime ES2115319T3 (es) | 1994-06-09 | 1995-06-01 | Aparato contador reversible. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5428654A (es) |
EP (1) | EP0691744B1 (es) |
AT (1) | ATE165697T1 (es) |
DE (1) | DE69502243D1 (es) |
ES (1) | ES2115319T3 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3657191B2 (ja) | 2000-12-07 | 2005-06-08 | シャープ株式会社 | アップ/ダウングレーコードカウンタおよびこれを備えた固体撮像装置 |
US6826249B1 (en) * | 2002-10-10 | 2004-11-30 | Xilinx, Inc. | High-speed synchronous counters with reduced logic complexity |
US7194500B2 (en) * | 2003-07-11 | 2007-03-20 | Sony Corporation | Scalable gray code counter |
US7702061B2 (en) * | 2007-12-17 | 2010-04-20 | Integrated Device Technology, Inc. | High speed hybrid structure counter having synchronous timing and asynchronous counter cells |
DE102010013683B4 (de) * | 2010-04-01 | 2012-10-31 | Siemens Aktiengesellschaft | EMI Reduktion mit spezieller Codierung von Counter-Signalen |
KR20130015460A (ko) * | 2011-08-03 | 2013-02-14 | 에스케이하이닉스 주식회사 | 반도체 장치의 카운팅 회로 및 이를 이용한 반도체 장치의 듀티 보정 회로 |
US9621169B2 (en) * | 2014-02-26 | 2017-04-11 | Taiwan Semiconductor Manufacturing Company Limited | Gray code counter |
CN114553240A (zh) * | 2020-11-25 | 2022-05-27 | 夏普半导体创新株式会社 | 多位格雷码生成电路 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH422061A (de) * | 1964-10-07 | 1966-10-15 | Hasler Ag | Elektronische Zählkette |
JPS59181831A (ja) * | 1983-03-31 | 1984-10-16 | Toshiba Corp | 可変分周器 |
US4618849A (en) * | 1984-10-31 | 1986-10-21 | Rca Corporation | Gray code counter |
US4780894A (en) * | 1987-04-17 | 1988-10-25 | Lsi Logic Corporation | N-bit gray code counter |
US5020082A (en) * | 1988-06-15 | 1991-05-28 | Seiko Epson Corporation | Asynchronous counter |
US4937845A (en) * | 1988-08-01 | 1990-06-26 | Plessey Electronic Systems Corp. | Fast library element gray code generators without feedback and feedforward networks |
US5062126A (en) * | 1990-03-26 | 1991-10-29 | Hughes Aircraft Company | High speed synchronous counter system and process with look-ahead carry generating circuit |
US5097491A (en) * | 1990-05-31 | 1992-03-17 | National Semiconductor Corporation | Modular gray code counter |
US5164968A (en) * | 1991-10-15 | 1992-11-17 | Loral Aerospace Corp. | Nine bit Gray code generator |
US5355396A (en) * | 1991-12-30 | 1994-10-11 | Texas Instruments Incorporated | Circuitry and method for modularized single transition counting |
-
1994
- 1994-06-09 US US08/257,543 patent/US5428654A/en not_active Expired - Lifetime
-
1995
- 1995-06-01 DE DE69502243T patent/DE69502243D1/de not_active Expired - Lifetime
- 1995-06-01 ES ES95303748T patent/ES2115319T3/es not_active Expired - Lifetime
- 1995-06-01 AT AT95303748T patent/ATE165697T1/de not_active IP Right Cessation
- 1995-06-01 EP EP95303748A patent/EP0691744B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0691744B1 (en) | 1998-04-29 |
US5428654A (en) | 1995-06-27 |
EP0691744A1 (en) | 1996-01-10 |
DE69502243D1 (de) | 1998-06-04 |
ATE165697T1 (de) | 1998-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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