Patent ID: 6621979
Filing Date: 2003-09-16
Classification: H04N

Abstract:
An apparatus for recording a digital video information signal on a record carrier, the apparatus comprising:input means for receiving the digital video information signal; trick play signal generating means for generating a trick play signal and a second trick play signal from said digital video information signal, said trick play signal enabling a trick play reproduction at a speed m times a nominal reproduction speed, where m is an integer larger than 1, and said second trick play signal enabling a trick play reproduction at a speed p*m times said nominal reproduction speed, where p is a constant larger than 1, said second trick play signal being formed from said digital video information signal by selecting each p-th group of pictures from the trick play signal; merging means for merging said digital video information signal and said trick play signal and said second trick play signal into a composite information signal; and writing means for writing said composite information signal in a track on said record carrier, wherein said trick play signal generating means comprises: (a) means for retrieving intra-encoded pictures from said digital video information signal; (b) means for generating inter-encoded pictures; and (c) means for merging said intra-encoded pictures and said inter-encoded pictures to form said trick play signal comprising subsequent groups of pictures, said trick play signal comprising said intra-encoded picture, followed by a number n of said generated inter-encoded pictures, where n is an integer larger than 0, the generated inter-encoded pictures being such that, upon reproduction at said trick play speed, an inter-encoded picture follows an intra-encoded picture, upon decoding, in a repeated presentation of a picture obtained from decoding said intra-encoded picture.