Hitachi, Ltd.

Miyoko Yoshikoshi

Kazuhiko Yoshizawa

Hitoaki Owashi

Kyoichi Hosokawa

Yasuo Inagaki

Toshiaki Takahashi

Koutaro Okiguchi

A method of converting a field of a regenerative signal in a VTR is provided wherein when image is reproduced at a nonstandard play speed, field data of a predetermined field number is formed using an inter-field signal with respect to a still part, and field data of a predetermined number is formed using only an inter-line signal with respect to a moving part; with respect to a carrier chrominance signal of a different field which will be interlaced, a signal processing is performed in such a way that when composite video signals are inputted in a normal direction, a phase is inverted, while when the composite video signals are inputted in a reverse direction, the phase is not inverted; and when abnormality occurs in an input state of the composite video signals, field data of a predetermined field number is formed using only the inter-line signal.

Method of converting a field of a regenerative signal a VTR and

A field conversion device for forming data of a new field, comprising luminance and chrominance signals, respectively, by combining data of an arbitrary field of an interlaced television signal and field data of a television signal in an interlaced relationship therewith, and method thereof. Field signal data extracted from the arbitrary field is combined with data from the field in an interlaced relationship therewith. Furthermore, a second new field data is obtained using field data of a plurality of lines in the arbitrary field. Field data, comprising luminance and chrominance signals, respectively, are selectively chosen and output from the new first and second field data according to movement detected within an input signal, to comprise the new field data.

Field converting method for television signals and device for realizing

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Yokohama, Japan

Miyoko Yoshikoshi