Cselt-centro Studi E Laboratori Telecomunicazioni S.p.a.

Sip - Societa Italiana Per L-esercizio Delle Telecomunicazioni P.a.

Sip - Societa Italiana Per L'esercizio Delle Telecommunicazioni

Telecom Italia S.p.a.

Pierangelo Garino

Marco Gandini

Mauro Marchisio

Andrea Finotello

Giovanni Ghigo

Maura Turolla

Gianmario Bollano

Alessandro Torielli

Andrea Bragagnini

Antonio Varriale

Giovanni Baronetti

Marco Mattavelli

Stefano Dal Lago

Alfredo Rinaudo

Giovanni Pucci

Didier Nicoulaz

Stephanie Dogimont

Martin Gumm

Frederich Mombers

Fabio Bellifemine

Circuit for motion estimation in digitized video sequence encoders

An integrated circuit for manipulating digitized video sequences is provided, for use in a system for transmission and reception of compressed video sequences to perform, possibly with the aid of an external memory, reordering, format conversion, prediction and motion compensation on the pictures in a sequence. The device has memory for temporarily storing sequences to be manipulated and data read from the external memory; a circuit for decoding information about the manipulations to be performed; address circuitry for transferring the data between the device and the external memory; circuitry for configuring the device by means of a remote processing unit; circuitry for processing the data read from the external memory; and circuitry for arranging the output sequences in the format required by the function to be performed. A controller may control, supervise and set up the functions to be performed.

Device for manipulating compressed video sequences

A device for transmitting and decoding audio-visual streams arranged in accordance with standard ISO/IEC 11172 is provided. The device (DEC) comprises: interfaces (CSC, IA, CIS) for connection to a local storage device (MEL) or to a telecommunications network (2, 3), for receiving streams from remote sources or send streams to remote receivers; demultiplexing and synchronisation means (DES) for splitting the audio-visual streams into constituent audio, video and private data streams and extracting synchronisation information from the streams, and means (DA, DV, UA, UV) for decoding audio and video streams and present audio and video signals in analog form at the output. A controller (CNT) is to control and supervise demultiplexing and decoding operations.

Device for transmitting, receiving and decoding compressed audiovisual

The video control circuit is particularly adapted to multimedia applicati, wherein image transmission services are offered in addition to usual telephone speech and data transmission services. The circuit is capable of processing both photographic and graphic video images, satisfying both the relevant CCIR standards and the specifications proper to personal computers, VGA EGA, etc. so as to allow the representation of either types of images on an only type of display. To this end, it generates both timings proper to the CCIR standards, for a resolution of 720 columns per 480 lines, with an upper representation limit of graphic planes of 1024 columns per 1024 lines.

Video control circuit for multimedia applications with video signal

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Volpiano, Italy

Pierangelo Garino