Patent ID: 6806916
Filing Date: 2004-10-19
Classification: H04N

Abstract:
A video apparatus with image memory function comprising:a field memory including two independent read ports, a write port, and a capacity of storing an image of one field or more; two read control units corresponding to said two independent read ports; and a write control unit corresponding to said write port, wherein: a first one of said two read control units reads a first area of a signal of an n-th field stored in said field memory, a second one of said two read control units reads a second area that contains said first area and is wider than said first area, a beginning write address of an (n+1)-th field following the n-th field is so determined as to be after an address of an ending read address of said first area, a video signal of the (n+1)-th field is concurrently written to said field memory, starting with said beginning write address, while the signal of said first area is read from said field memory and delivered as another video signal, and information stored in different addresses of the field memory are read concurrently.