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Nota Técnica Estándares Para Video Y Televisión Digital

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Nota Técnica Estándares Para Video Y Televisión Digital Nota Técnica Estándares Para Video y Televisión Digital Introducción and audio industries. SMPTE ST 12-1 defnes the specifcations for both Linear Time Code (LTC) and Para estudiar ingeniería de televisión y vídeo digital Vertical Interval Time Code (VITC). ó para trabajar efectivamente en estos campos, es necesario tener buen conocimiento de las normas SMPTE ST 12-2 que se aplican en estos sistemas en diferentes lug- Estándar para la transmisión del Código de Tiempo ares del mundo. Estas normas que proveen amplias en la sección anexa (auxiliar) de datos para señal especifcaciones, son producidas por las grandes digital en serie. sociedades técnicas que forman parte del desarrollo de nuevas tecnologías. Estos grupos de tecnología The SMPTE Recommended Practice for transmitting en colaboración con miembros de la industria de Time code in the ancillary data space of serial digital televisión y cine, generan la mayoría de las normas televisión signals para diseño, desarrollo y medición de sistemas de televisión y vídeo en general. Estos grupos son: SMPTE ST 125 Estándar para el interfaz de bits en paralelo en • SMPTE - Sociedad de Ingenieros de Cine y señales SDI con componentes. Defne todos los Televisión parámetros que son requeridos para generar y trans- • ITU - Unión Internacional de Telecomunicación mitir señal de componentes en paralelo para sistema de 525 líneas. • DVB - Vídeo Digital para Radiodifusión • AES - Sociedad de Ingeniería de Audio The SMPTE standard for bit parallel digital interface for component vídeo signals. SMPTE ST 125 defnes A continuación, les explicamos a que se aplican las the parameters required to generate and distribute normas que más se usan. component vídeo signals on a parallel interface for 525 line vídeo systems SMPTE ST 170 Estándar para señales analógica compuestas para el sistema NTSC. The SMPTE standard for the NTSC composite analog televisión signals SMPTE ST 259 Estándar de interfaz para señal digital en serie de defnición estándar (SD-SDI) de 10-bits y formato de SMPTE componentes 4:2:2. También ofrece guía de interfaz para señal compuesta usando el 4fsc. SMPTE ST 12-1 Estándar para la señal que controla el Tiempo y The SMPTE standard for the serial digital interface for Dirección como el Código de Tiempo Lineal (LTC) y el standard defnition 10 bit 4:2:2 component and 4Fsc Código de Tiempo en el Intervalo Vertical (VITC). composite interfaces. (Often referred to as SDI) The SMPTE standard for the Time and Address Con- SMPTE ST 272 trol signal in widespread use in the professional vídeo Estándar como embeber audio de formato AES a una señal digital en serie de defnición estándar (SD-SDI) página 1 SMPTE ST 299 The SMPTE standard for embedding AES audio into Estándar como embeber audio de formato AES a una standard defnition serial digital interfaces señal digital en serie de alta defnición (HD-SDI) SMPTE ST 274 The SMPTE standard for embedding AES audio into Estándar de escaneo para TV de alta resolución high defnition serial digital interfaces (HDTV) usando el interfaz paralelo para varia fre- cuencias de cuadro. SMPTE ST 305 Estándar para el interfaz de transporte de datos en The SMPTE standard for HDTV 1920 x 1080 line serie (SDTI). scanning and analog and parallel interfaces for multi- ple frame rates Televisión - Serial Data Transport Interface (SDTI) SMPTE ST 276 SMPTE ST 309 Estándar de transmisión usando cable coaxial para Estándar para codifcar información de Fecha y audio digital de clase AES. Zona de Tiempo a las señales de Código de Tiempo (SMPTE ST 12-1) The SMPTE standard for transmission of AES digital audio over coaxial cable The SMPTE standard for the encoding Date and Time Zone information into SMPTE ST 12-1 Time code SMPTE ST 291 signals Estándar para paquetizar Datos Anexos y Formatos de Espacio. SMPTE ST 310 Estándar de televisión para interfaz de sincronismo The SMPTE standard for Ancillary Data Packet and en serie para fujos de transporte usado para MPEG- Space Formatting 2. SMPTE ST 292 Televisión - Synchronous Serial Interface for MPEG-2 Estándar de interfaz para señal digital en serie de alta Digital Transport Streams defnición (HD-SDI) de 10-bits y a velocidad de trans- misión de 1.485 Gb/s. SMPTE ST 349 Estándar de televisión para transportar formatos The SMPTE standard for the 1.485 Gb/s serial digital de imágenes de origin alternas usando el estándar interface for High Defnition televisión signals. (Often SMPTE 202. referred to as HD SDI) Televisión - Transport of Alternate Source Image For- SMPTE ST 293 mats through SMPTE ST 292 Estándar de escaneo de producción progresiva para 720 pixeles por línea y 483 líneas activas. SMPTE 356M Especifcación para formato de video profesional, Televisión - 720 x 483 Active Line at 59.94-Hz Pro- esta compuesto de video MPEG-2 pero solo de las gressive Scan Production - Digital Representation I-frames y usa el muestreo de 4:2:2. Contiene 8 cana- les de audio AES-3 con 24 bits de muestreo. Requi- SMPTE ST 296 ere un ancho de banda de 50 Mb/sec. Estándar de escaneo de producción progresiva para 1280 pixeles por línea y 720 líneas activas. Specifcation for a professional video format, it is com- posed of MPEG-2 video composed of only I-frames The SMPTE standard for HDTV 1280 x 720 line pro- and using 4:2:2 chroma subsampling. 8 channel AES3 gressive images - scanning and analog and parallel audio streams are also included. These AES3 audio interfaces usually contain 24 bit PCM audio samples. SMPTE 356M requires up to 50 Mb/s of bandwidth. página 2 SMPTE ST 372 Estándar de doble enlace (Dual Link) para señales ST 2022-7:2013 - Protección transparente (sin f- digitales de alta defnición (HD-SDI) con velocidad de suras) durante la commutación de IP Datagrams. transmisión de 1.485 Gb/s. Standard that describes how to send digital video The SMPTE standard for the dual link 1.485 Gb/s over an IP network. Video formats supported include serial digital interface for High Defnition televisión MPEG-2 and serial digital interface[1] The standard is signals published in seven parts.[3] SMPTE ST 424 ST 2022-1:2007 - Forward Error Correction for Re- Estándar de interfaz para señales de alta defnición al-Time Video/Audio Transport Over IP Networks con velocidad de transmisión de 3Gb/s. ST 2022-2:2007 - Unidirectional Transport of Con- stant Bit Rate MPEG-2 Transport Streams on IP The SMPTE standard for the nominal 3Gb/s serial Networks digital interface for High Defnition televisión signals ST 2022-3:2010 - Unidirectional Transport of Variable Bit Rate MPEG-2 Transport Streams on IP Networks RP 168 ST 2022-4:2011 - Unidirectional Transport of Estándar de Clase: Practica Recomendada, para Non-Piecewise Constant Variable Bit Rate MPEG-2 defnir puntos de conmutación durante el intervalo Streams on IP Networks vertical para obtener conmutación en sincronismo. ST 2022-5:2013 - Forward Error Correction for Trans- port of High Bit Rate Media Signals over IP Networks The SMPTE Recommended Practice for the defnition (HBRMT) of the vertical interval switching point for synchronous ST 2022-6:2012 - Transport of High Bit Rate Media vídeo switching. This recommended practice also de- Signals over IP Networks (HBRMT) fnes a default alignment between standard defnition ST 2022-7:2013 - Seamless Protection Switching of and high defnition synchronizing pulse signals SMPTE ST 2022 IP Datagrams SMPTE 2022 SMPTE ST 2052-1:2010 Estándar para transportar video digital usando redes Timed Text format : Sub titulos de texto para pro- IP. Usa los formatos de video MPEG-2 y interfaz digi- gramas servidos via the internet. tal en serie. Este estándar contiene siete partes: SMPTE 2059 ST 2022-1:2007 - Corrección de errores de avance Estándar para sincronizar equipos de video y audio para el transporte de vídeo y audio en tiempo real digital que usan redes IP para transportar la infor- sobre redes IP mación. Se publica en dos partes: ST 2022-2:2007 - Transporte uni-direccional de fujos SMPTE 2059-1: Defne la generación de señales de de transporte MPEG-2 de velocidad de bits constante acuerdo al tiempo de sincronización del protocolo IEEE 1588. ST 2022-3:2010 - Transporte uni-direccional de fujos de transporte MPEG-2 de velocidad de bits variable. SMPTE 2059-2: Defne un perfl operativo para el pro- tocolo IEEE optimizado para sincronización de fujos. ST 2022-4:2011 - Transporte uni-direccional de tra- mos de fujos MPEG-2 de velocidad de bits variable Standard that describes how to synchronize video que pueden haber alterados en tiempo via la red IP. equipment over an IP network.[1] Is published in two parts: ST 2022-5:2013 - Corrección de errores de avance SMPTE 2059-1 – Defnes signal generation para el transporte de vídeo y audio de alta velocidad based on time information delivered by the IEEE 1588 de bits sobre redes IP. protocol. SMPTE 2059-2 – Defnes an operating profle ST 2022-6:2012 - Transporte de señal de alta velocid- for the IEEE protocol optimized to the needs of media ad de bits. synchronization. página 3 tor paralelo. También incluye esquemas de borrado, SMPTE 2059 is an integral part of emerging profes- sincronismo y multiplexación para sistemas en para- sional IP video broadcast technology and standards. lelo y en serie. [2][3] In May 2016, the Audio Engineering Society pub- The physical parallel and serial interconnect scheme lished a report describing synchronization interopera- for ITU-R601. ITU-R656 defnes the parallel connector bility between AES67 and SMPTE 2059-2.[ pinout as well as the blanking, sync and multiplexing schemes used in both parallel and serial interfaces.
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