Sony Corporation

Masashi Mizuta

Toshihiko Numakura

Michio Nagai

Masayoshi Ishimaru

Keiji Kanouta

A method of image data interpolation for obtaining an interlaced image signal by utilizing an image signal of only one field. The method includes the steps of obtaining another field signal by directly utilizing a given field signal or by employing a mean value interpolation processing at a portion of an image where a luminance of the image does not change in the vertical direction, obtaining another field signal by employing the mean value interpolation processing at a portion where a luminance of an image changes singularly to the vertical directions, and obtaining another field signal by directly utilizing a given field signal at some point of a portion where a luminance of an image changes a number of times in the vertical direction.

Method of interpolating one video image field to create an interlaced

A color signal processing apparatus comprising a first delay circuit for delaying an input chroma signal; a second delay circuit for delaying an output of the first delay circuit; a plurality of gain control circuits for controlling the amplitudes of the input chroma signal and the outputs of the first and second delay circuits, respectively; and an operating circuit for operating the gain-controlled amplitudes of the input chroma signal and the outputs of the first and second delay circuits, wherein the phases of the outputs of the first and second delay circuits are matched with the phase of the input chroma signal.

Color signal processing apparatus

A recording and reproducing apparatus wherein the video signal is time base expanded and separated into two channels before being recorded with a two headed recorder on two separate channels of a magnetic medium and wherein during reproduction the two channels from the magnetic medium are supplied to a time base corrector which supplies an output to a channel mixing and time base compressor which converts the two channels into a single output signal. A burst generator inserts burst signals into the two channels before they are recorded.

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Kanagawa, Japan

Masashi Mizuta