Sony Corporation

Mitsunobu Fujikawa

Takahiro Ichikawa

Yoshikazu Takano

Yasuo Takeshima

Tomohisa Kamimura

A scanconverter system with a superimposing apparatus for converting an interlaced video signal to a non-interlaced video signal and forming desired image data by superimposing a computer-generated image on another image reproduced from a laser disc or the like. The system comprises a write clock generator for generating a write clock of a predetermined frequency, a read clock generator for generating a read clock of a double frequency, a line memory unit for storing a horizontal line of an interlaced digital video signal and outputting a first non-interlaced digital video signal, a frame memory unit for storing a frame of the interlaced digital video signal and outputting a second non-interlaced digital video signal, a detector for detecting whether the interlaced digital video signal represents a still picture or not, and a selector for selecting one of the first and second non-interlaced digital video signals according to the output of the detector. Selection of the first or second non-interlaced digital video signal depends on whether the interlaced digital video signal represents a still picture or not.

Scanconverter system with superimposing apparatus

An automatic cassette changer is provided for use with a cassette VTR of the type having push-buttons depressible for selecting at least recording, reproducing and rewinding modes, respectively, of the VTR, and a cassette holder movable between a raised position for receiving or delivering a cassette and a lowered position at which a cassette in the holder can have its tape acted upon by the VTR in a selected one of its modes. The automatic cassette changer provides a magazine for housing a plurality of cassettes; cassette-manipulating devices operative in a plurality of modes in succession for removing a cassette from the magazine and inserting the same into the cassette holder at its raised position, moving the cassette holder to its lowered position so that the VTR can act to record, reproduce or rewind the tape of the cassette in the holder, and discharging the cassette from the holder upon the return of the latter to its raised position; a mode selecting assembly actuable for selecting the modes of the cassette-manipulating means; a first motor for driving the mode selecting assembly, actuators adapted to be driven for causing operation of the cassette-manipulating devices in each selected one of the modes of the latter determined by said mode selecting assembly; and a second motor for driving said actuators.

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Kanagawa, Japan

Mitsunobu Fujikawa