Patent ID: 7421187

Claim:
A superimposing apparatus comprising: material reproducing means including reproducing means for reproducing a material containing video and/or sound data from a nonlinear accessible recording medium, and a plurality of output processing means for receiving said material reproduced by said reproducing means in an assigned time slot interval and outputting said material to outside; superimposition information generating means for generating superimposition information including letter data or character data to be inserted in an image of said material; control means for controlling reproducing operation of said material in said material reproducing means; timing pulse generating means for generating a timing pulse to be used to insert said superimposition information in said material, said timing pulse being supplied to said control means and said superimposition information generating means; and combining means for receiving said material reproduced and outputted from said material reproducing means controlled by said control means according to said timing pulse, and said superimposing information outputted from said superimposition information generating means according to said timing pulse, combining an image of said material with said superimposing information, and outputting a resultant image, wherein the timing pulse is generated at every sending start time of the material.