MXPA03001633A - Generador de reloj especialmente para aparatos usb. - Google Patents
Generador de reloj especialmente para aparatos usb.Info
- Publication number
- MXPA03001633A MXPA03001633A MXPA03001633A MXPA03001633A MXPA03001633A MX PA03001633 A MXPA03001633 A MX PA03001633A MX PA03001633 A MXPA03001633 A MX PA03001633A MX PA03001633 A MXPA03001633 A MX PA03001633A MX PA03001633 A MXPA03001633 A MX PA03001633A
- Authority
- MX
- Mexico
- Prior art keywords
- clock generator
- pulse
- pulses
- clock
- accuracy
- Prior art date
Links
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Information Transfer Systems (AREA)
- Manipulation Of Pulses (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Una exactitud en la tasa de transferencia de datos de 0.25% se requiere de acuerdo a las especificaciones USB. Con el objeto de garantizar una senal de reloj que haga posible esta exactitud, la invencion indica el uso de una unidad generadora de reloj que funciona sin cuarzo. El generador de pulsos de reloj comprende un generador de impulsos interno (11), un contador de pulsos (17) que esta conectado al generador de reloj interno (11), una memoria de conteo de pulsos (18) y un filtro de impulsos (14). El contador de pulsos cuenta el numero de los pulsos de reloj generados internamente entre dos pulsos de la senal de sincronizacion (16) que se transmiten de acuerdo a la especificacion USB. La diferencia entre el numero de pulsos determinado o actual y el numero de pulsos nominal se valua y se usa para controlar el filtro de pulsos (14) que suprime pulsos lo cual da como resultado la generacion de una senal de reloj estabilizada (13).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10041772A DE10041772C2 (de) | 2000-08-25 | 2000-08-25 | Taktgenerator, insbesondere für USB-Geräte |
PCT/DE2001/003187 WO2002017047A2 (de) | 2000-08-25 | 2001-08-21 | Taktgenerator, insbesondere für usb-geräte |
Publications (1)
Publication Number | Publication Date |
---|---|
MXPA03001633A true MXPA03001633A (es) | 2004-04-02 |
Family
ID=7653761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MXPA03001633A MXPA03001633A (es) | 2000-08-25 | 2001-08-21 | Generador de reloj especialmente para aparatos usb. |
Country Status (15)
Country | Link |
---|---|
US (1) | US6762635B2 (es) |
EP (1) | EP1311933B1 (es) |
JP (1) | JP3759105B2 (es) |
KR (1) | KR100468210B1 (es) |
CN (1) | CN1211720C (es) |
AT (1) | ATE418755T1 (es) |
BR (1) | BR0113471A (es) |
CA (1) | CA2419260A1 (es) |
DE (2) | DE10041772C2 (es) |
IL (1) | IL154562A0 (es) |
MX (1) | MXPA03001633A (es) |
RU (1) | RU2242042C2 (es) |
TW (1) | TW523990B (es) |
UA (1) | UA72637C2 (es) |
WO (1) | WO2002017047A2 (es) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7539793B2 (en) * | 2002-07-17 | 2009-05-26 | Chronologic Pty Ltd. | Synchronized multichannel universal serial bus |
DE10260656B4 (de) * | 2002-12-23 | 2006-03-30 | Infineon Technologies Ag | Verfahren und Vorrichtung zum Extrahieren einer einem Datenstrom zugrundeliegenden Taktfrequenz |
DE10262079A1 (de) * | 2002-12-23 | 2004-11-18 | Infineon Technologies Ag | Verfahren und Vorrichtung zum Extrahieren einer einem Datenstrom zugrundeliegenden Taktfrequenz |
US7120813B2 (en) * | 2003-01-28 | 2006-10-10 | Robert Antoine Leydier | Method and apparatus for clock synthesis using universal serial bus downstream received signals |
US20040221312A1 (en) * | 2003-05-01 | 2004-11-04 | Genesis Microchip Inc. | Techniques for reducing multimedia data packet overhead |
US20040218599A1 (en) * | 2003-05-01 | 2004-11-04 | Genesis Microchip Inc. | Packet based video display interface and methods of use thereof |
US8059673B2 (en) | 2003-05-01 | 2011-11-15 | Genesis Microchip Inc. | Dynamic resource re-allocation in a packet based video display interface |
US8068485B2 (en) * | 2003-05-01 | 2011-11-29 | Genesis Microchip Inc. | Multimedia interface |
US7839860B2 (en) | 2003-05-01 | 2010-11-23 | Genesis Microchip Inc. | Packet based video display interface |
US8204076B2 (en) * | 2003-05-01 | 2012-06-19 | Genesis Microchip Inc. | Compact packet based multimedia interface |
US7733915B2 (en) * | 2003-05-01 | 2010-06-08 | Genesis Microchip Inc. | Minimizing buffer requirements in a digital video system |
US7405719B2 (en) * | 2003-05-01 | 2008-07-29 | Genesis Microchip Inc. | Using packet transfer for driving LCD panel driver electronics |
US7800623B2 (en) | 2003-09-18 | 2010-09-21 | Genesis Microchip Inc. | Bypassing pixel clock generation and CRTC circuits in a graphics controller chip |
CN100347691C (zh) * | 2003-09-24 | 2007-11-07 | 创惟科技股份有限公司 | 宽频带锁频方法及其相关装置 |
US7634090B2 (en) | 2003-09-26 | 2009-12-15 | Genesis Microchip Inc. | Packet based high definition high-bandwidth digital content protection |
US7613300B2 (en) * | 2003-09-26 | 2009-11-03 | Genesis Microchip Inc. | Content-protected digital link over a single signal line |
US7127628B2 (en) * | 2004-02-24 | 2006-10-24 | Alcor Micro, Corp. | Method for automatically regulating an oscillator |
KR100990484B1 (ko) * | 2004-03-29 | 2010-10-29 | 삼성전자주식회사 | 직렬 버스 통신을 위한 송신 클럭 신호 발생기 |
JP2007094931A (ja) * | 2005-09-30 | 2007-04-12 | Nec Electronics Corp | 補正クロック発生回路及びそれを備えるusbデバイス |
EP1772794A1 (en) * | 2005-10-10 | 2007-04-11 | Axalto S.A. | Method and circuit for local clock generation and smartcard including it thereon |
CN1955949B (zh) * | 2005-10-24 | 2010-05-26 | 瑞昱半导体股份有限公司 | 通用串行总线装置 |
US7809973B2 (en) * | 2005-11-16 | 2010-10-05 | Cypress Semiconductor Corporation | Spread spectrum clock for USB |
KR100741470B1 (ko) | 2006-09-26 | 2007-07-20 | 삼성전자주식회사 | 유에스비 장치를 위한 클럭 발생기 |
US8036613B2 (en) * | 2007-05-07 | 2011-10-11 | Infineon Technologies Ag | Communication system and method for operating a communication system |
KR101400695B1 (ko) | 2007-08-14 | 2014-06-27 | 삼성전자주식회사 | 안정된 클럭 신호를 생성할 수 있는 클럭 신호 발생기,상기 클럭 신호 발생기를 구비하는 반도체 메모리 장치 및그 방법 |
US20090262667A1 (en) * | 2008-04-21 | 2009-10-22 | Stmicroelectronics, Inc. | System and method for enabling topology mapping and communication between devices in a network |
AU2009284710A1 (en) * | 2008-08-21 | 2010-02-25 | Chronologic Pty Ltd | Synchronisation and timing method and apparatus |
CN101447859B (zh) | 2008-12-26 | 2012-07-18 | 华为技术有限公司 | 检测时钟频率偏差的方法及其装置 |
US20100183004A1 (en) * | 2009-01-16 | 2010-07-22 | Stmicroelectronics, Inc. | System and method for dual mode communication between devices in a network |
US8429440B2 (en) | 2009-05-13 | 2013-04-23 | Stmicroelectronics, Inc. | Flat panel display driver method and system |
US8760461B2 (en) * | 2009-05-13 | 2014-06-24 | Stmicroelectronics, Inc. | Device, system, and method for wide gamut color space support |
US8860888B2 (en) | 2009-05-13 | 2014-10-14 | Stmicroelectronics, Inc. | Method and apparatus for power saving during video blanking periods |
US8156238B2 (en) | 2009-05-13 | 2012-04-10 | Stmicroelectronics, Inc. | Wireless multimedia transport method and apparatus |
US8370554B2 (en) | 2009-05-18 | 2013-02-05 | Stmicroelectronics, Inc. | Operation of video source and sink with hot plug detection not asserted |
US8291207B2 (en) | 2009-05-18 | 2012-10-16 | Stmicroelectronics, Inc. | Frequency and symbol locking using signal generated clock frequency and symbol identification |
US8582452B2 (en) | 2009-05-18 | 2013-11-12 | Stmicroelectronics, Inc. | Data link configuration by a receiver in the absence of link training data |
US8468285B2 (en) | 2009-05-18 | 2013-06-18 | Stmicroelectronics, Inc. | Operation of video source and sink with toggled hot plug detection |
WO2010132943A1 (en) * | 2009-05-20 | 2010-11-25 | Chronologic Pty. Ltd. | Jitter reduction method and apparatus for distributed synchronised clock architecture |
TWI410806B (zh) * | 2009-10-16 | 2013-10-01 | Elan Microelectronics Corp | A method and a circuit for correcting the frequency of the USB device, and a method of identifying whether or not the input packet is a tag packet |
US8671234B2 (en) | 2010-05-27 | 2014-03-11 | Stmicroelectronics, Inc. | Level shifting cable adaptor and chip system for use with dual-mode multi-media device |
US8918666B2 (en) * | 2011-05-23 | 2014-12-23 | Intel Mobile Communications GmbH | Apparatus for synchronizing a data handover between a first and second clock domain through FIFO buffering |
US8826062B2 (en) * | 2011-05-23 | 2014-09-02 | Intel Mobile Communications GmbH | Apparatus for synchronizing a data handover between a first clock domain and a second clock domain through phase synchronization |
US8724762B2 (en) | 2011-07-04 | 2014-05-13 | Faraday Technology Corp. | Clock regeneration method, reference-less receiver, and crystal-less system |
TWI446181B (zh) * | 2011-08-08 | 2014-07-21 | Faraday Tech Corp | 資料擷取的方法與相關裝置 |
CN102931969B (zh) * | 2011-08-12 | 2015-03-04 | 智原科技股份有限公司 | 数据提取的方法与装置 |
CN103455085A (zh) * | 2013-09-16 | 2013-12-18 | 四川和芯微电子股份有限公司 | 用于产生usb主机工作时钟的电路及方法 |
EP2978133A1 (en) * | 2014-07-22 | 2016-01-27 | Synopsys, Inc. | Calibration unit for calibrating an oscillator, oscillator arrangement and method for calibrating an oscillator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4849703A (en) * | 1986-07-15 | 1989-07-18 | Hayes Microcomputer Products, Inc. | Method and apparatus for generating a data sampling clock locked to a baud clock contained in a data signal |
JPH04268811A (ja) * | 1991-02-22 | 1992-09-24 | Yokogawa Hewlett Packard Ltd | タイミングジェネレータ |
KR100400316B1 (ko) * | 2001-06-30 | 2003-10-01 | 주식회사 하이닉스반도체 | 클럭 동기 장치 |
-
2000
- 2000-08-25 DE DE10041772A patent/DE10041772C2/de not_active Expired - Fee Related
-
2001
- 2001-08-21 JP JP2002521675A patent/JP3759105B2/ja not_active Expired - Fee Related
- 2001-08-21 KR KR10-2003-7002380A patent/KR100468210B1/ko not_active IP Right Cessation
- 2001-08-21 BR BR0113471-0A patent/BR0113471A/pt not_active IP Right Cessation
- 2001-08-21 CA CA002419260A patent/CA2419260A1/en not_active Abandoned
- 2001-08-21 MX MXPA03001633A patent/MXPA03001633A/es active IP Right Grant
- 2001-08-21 UA UA2003021629A patent/UA72637C2/uk unknown
- 2001-08-21 IL IL15456201A patent/IL154562A0/xx unknown
- 2001-08-21 WO PCT/DE2001/003187 patent/WO2002017047A2/de active IP Right Grant
- 2001-08-21 DE DE50114602T patent/DE50114602D1/de not_active Expired - Fee Related
- 2001-08-21 CN CNB018146503A patent/CN1211720C/zh not_active Expired - Fee Related
- 2001-08-21 RU RU2003107929/09A patent/RU2242042C2/ru not_active IP Right Cessation
- 2001-08-21 EP EP01969248A patent/EP1311933B1/de not_active Expired - Lifetime
- 2001-08-21 AT AT01969248T patent/ATE418755T1/de not_active IP Right Cessation
- 2001-08-24 TW TW090120853A patent/TW523990B/zh not_active IP Right Cessation
-
2003
- 2003-02-25 US US10/373,891 patent/US6762635B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1449516A (zh) | 2003-10-15 |
KR100468210B1 (ko) | 2005-01-26 |
IL154562A0 (en) | 2003-09-17 |
EP1311933B1 (de) | 2008-12-24 |
CN1211720C (zh) | 2005-07-20 |
EP1311933A2 (de) | 2003-05-21 |
US6762635B2 (en) | 2004-07-13 |
UA72637C2 (en) | 2005-03-15 |
JP2004507812A (ja) | 2004-03-11 |
TW523990B (en) | 2003-03-11 |
JP3759105B2 (ja) | 2006-03-22 |
RU2242042C2 (ru) | 2004-12-10 |
ATE418755T1 (de) | 2009-01-15 |
CA2419260A1 (en) | 2002-02-28 |
DE10041772C2 (de) | 2002-07-11 |
DE50114602D1 (de) | 2009-02-05 |
US20030174795A1 (en) | 2003-09-18 |
DE10041772A1 (de) | 2002-03-14 |
KR20030038706A (ko) | 2003-05-16 |
WO2002017047A2 (de) | 2002-02-28 |
WO2002017047A3 (de) | 2003-01-09 |
BR0113471A (pt) | 2003-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration |