ES2038896B1 - METHOD AND DEVICE FOR PROCESSING ASYNCHRONOUS DATA. - Google Patents
METHOD AND DEVICE FOR PROCESSING ASYNCHRONOUS DATA.Info
- Publication number
- ES2038896B1 ES2038896B1 ES9101386A ES9101386A ES2038896B1 ES 2038896 B1 ES2038896 B1 ES 2038896B1 ES 9101386 A ES9101386 A ES 9101386A ES 9101386 A ES9101386 A ES 9101386A ES 2038896 B1 ES2038896 B1 ES 2038896B1
- Authority
- ES
- Spain
- Prior art keywords
- cell
- cells
- stage
- group
- type
- 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
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
METODO Y DISPOSITIVO DE PROCESAMIENTO DE DATOS ASINCRONOS. APLICABLE EN SISTEMAS DE PROCESAMIENTO DE SEÑALES DE VIDEO COMPRIMIDAS CUYO OBJETO ES GARANTIZAR EL MANTENIMIENTO DEL SINCRONISMO DE LAS CELULAS CON FORMATO MODO DE TRANSFERENCIA ASINCRONO (MTA), EN REDES DE COMUNICACIONES QUE NO SON MTA, Y QUE UTILIZA SISTEMAS CODIFICADORES Y DECODIFICADORES DE VIDEO EXISTENTES PARA REDES MTA. EL METODO CUENTA CON UNA PRIMERA ETAPA DE LECTURA DE LAS CELULAS MTA PROCEDENTES DEL CODIFICADOR DE VIDEO Y DETERMINACION DE SI CADA CELULA CONTIENE INFORMACION UTIL O NO. CUENTA CON UNA SEGUNDA ETAPA EN LA QUE SI LA CELULA TIENE INFORMACION UTIL SE ENVIA A LA RED DE COMUNICACIONES, MIENTRAS QUE SI NO CONTIENE INFORMACION UTIL SE EFECTUA LA CUENTA DEL NUMERO DE CELULAS VACIAS CONSECUTIVAS RECIBIDAS, GENERANDO UNA CELULA TIPO GRUPO, CUYO CAMPO DE INFORMACION CONTIENE EL VALOR FINAL DE LA CUENTA EFECTUADA; Y ENVIANDOSE LA CELULA TIPO GRUPO A LA RED DE COMUNICACIONES. CUENTA CON UNA TERCERA ETAPA DE RECEPCION YLECTURA DE LAS CELULAS RECIBIDAS DE LA RED DE COMUNICACIONES, DETERMINANDOSE PARA CADA CELULA SI ES DE TIPO GRUPO O DE TIPO INFO (UTILES). INCLUYE UNA CUARTA ETAPA EN LA QUE SI LA CELULA RECIBIDA ES DE TIPO INFO SE ENVIA AL DECODIFICADOR DE VIDEO, MIENTRAS QUE SI ES DE TIPO GRUPO SE EXTRAE EL VALOR FINAL DE LA CUENTA CONTENIDO EN SU CAMPO DE INFORMACION Y SE ENVIAN AL DECODIFICADOR DE VIDEO TANTAS CELULAS VACIAS COMO INDIQUE DICHO VALOR; CON EL FIN DE OBTENER EN LA ENTRADA DEL DECODIFICADOR DE VIDEO LA MISMA SECUENCIA DE CELULAS MTA QUE EN LA SALIDA DEL CODIFICADOR DE VIDEO. EL DISPOSITIVO LLEVA A CABO LAS DISTINTAS ETAPAS DEL METODO.METHOD AND DEVICE FOR PROCESSING ASYNCHRONOUS DATA. APPLICABLE IN COMPRESSED VIDEO SIGNALS PROCESSING SYSTEMS WHOSE PURPOSE IS TO GUARANTEE THE MAINTENANCE OF THE SYNCHRONISM OF THE CELLS WITH A FORMAT OF TRANSFER MODE ASYNCHRONOUS, AND THAT USE SEMI-DETECTING COMMUNICATION NETWORKS FOR MTA NETWORKS. THE METHOD HAS A FIRST STAGE OF READING MTA CELLS FROM THE VIDEO ENCODER AND DETERMINATION OF WHETHER EACH CELL CONTAINS USEFUL INFORMATION OR NOT. IT HAS A SECOND STAGE IN WHICH IF THE CELL HAS USEFUL INFORMATION, IT IS SENT TO THE COMMUNICATION NETWORK, WHILE IF IT DOES NOT CONTAIN USEFUL INFORMATION, THE ACCOUNT OF THE NUMBER OF CONSECUTIVE EMPTY CELLS RECEIVED, GENERATING A GROUP-TYPE CELL, WHOSE FIELD INFORMATION CONTAINS THE FINAL VALUE OF THE ACCOUNT CARRIED OUT; AND SENDING THE GROUP-TYPE CELL TO THE COMMUNICATIONS NETWORK. IT HAS A THIRD STAGE OF RECEPTION AND READING OF THE CELLS RECEIVED FROM THE COMMUNICATION NETWORK, DETERMINING FOR EACH CELL WHETHER IT IS OF A GROUP OR INFO TYPE (USEFUL). IT INCLUDES A FOURTH STAGE IN WHICH IF THE RECEIVED CELL IS OF THE INFO TYPE, IT IS SENT TO THE VIDEO DECODER, WHILE IF IT IS OF THE GROUP TYPE, THE FINAL VALUE OF THE ACCOUNT CONTAINED IN ITS FIELD OF INFORMATION AND IS SENT TO THE VIDEO DECODER AS MANY EMPTY CELLS AS INDICATE SUCH VALUE; IN ORDER TO OBTAIN THE SAME SEQUENCE OF MTA CELLS AT THE INPUT OF THE VIDEO DECODER AS THE VIDEO ENCODER OUTPUT. THE DEVICE CARRIES OUT THE DIFFERENT STAGES OF THE METHOD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9101386A ES2038896B1 (en) | 1991-06-07 | 1991-06-07 | METHOD AND DEVICE FOR PROCESSING ASYNCHRONOUS DATA. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9101386A ES2038896B1 (en) | 1991-06-07 | 1991-06-07 | METHOD AND DEVICE FOR PROCESSING ASYNCHRONOUS DATA. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ES2038896A2 ES2038896A2 (en) | 1993-08-01 |
| ES2038896R ES2038896R (en) | 1995-04-01 |
| ES2038896B1 true ES2038896B1 (en) | 1995-11-01 |
Family
ID=8272647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9101386A Expired - Lifetime ES2038896B1 (en) | 1991-06-07 | 1991-06-07 | METHOD AND DEVICE FOR PROCESSING ASYNCHRONOUS DATA. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2038896B1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0351818B1 (en) * | 1988-07-22 | 1998-12-02 | Hitachi, Ltd. | ATM switching system |
| JP2677418B2 (en) * | 1989-06-22 | 1997-11-17 | 富士通株式会社 | ATM switch system switching method |
-
1991
- 1991-06-07 ES ES9101386A patent/ES2038896B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2038896R (en) | 1995-04-01 |
| ES2038896A2 (en) | 1993-08-01 |
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