Loading patent…
AssigneeU.S. Philips Corporation
InventorsJurgen F. Rosengren, Ronald W. Saeijs, Joanne H. Westerink, Michiel J. van der Korst, Guy J. Roberts
Estimating the term…
MPEG2-based transmission systems transmit a large number of digital television programs in a single physical channel. Disclosed herein is a "Channel Navigation System" which allows a user to get an overview of the digital programs provided, and to easily select a desired program. The method of the invention includes the transmission (in a separate program of a transport stream) of a video stream representing a mosaic picture, the sub-pictures of which are miniature versions of the video stream of other programs in that transport stream. The method further includes the transmission of information which links the position of each sub-picture within the mosaic picture with the program number from which the sub-picture is derived. The user selects a desired program by merely `pointing and clicking` its miniature version in the mosaic picture.
A television transmitting system for transmitting a plurality of video signals via a common channel, each video signal having a program number, the television transmitting system comprising:
A television transmitter for transmitting a plurality of digital video signals, each signal being transform-coded into a respective elementary bitstream, the transmitter comprising:
A television receiver, comprising:
A television receiver for receiving digital video signals which have been transform-coded into elementary bitstreams, a plurality of elementary bitstreams being multiplexed into a transport stream, one of said bitstreams representing a mosaic picture comprising a plurality of sub-pictures, the receiver comprising:
A method of transmitting a plurality of video signals via a common channel, each video signal having a program number, the method comprising the steps of:
A method of transmitting a plurality of digital video signals, each signal being transform-coded into a respective elementary bitstream, the method comprising the steps of:
A method of receiving and displaying signals comprising the steps of:
A television signal including a mosaic video signal comprising a plurality of sub-pictures, each sub-picture representing a corresponding one of said plurality of video signals, at least one of said sub-pictures constituting a non-real-time characterization of a television program conveyed by the corresponding one of said video signals, and linking data defining the position of each sub-picture on a display screen and a program number of the corresponding video signal each sub-picture represents.
An MPEG2 television signal including a plurality of digital video signals, each signal being transform-coded into a respective elementary bitstream, a further elementary bitstream representing a mosaic picture comprising a plurality of sub-pictures, each sub-picture representing one of said plurality of video signals, and linking data for linking each sub-picture within the mosaic picture with the video signal each sub-picture represents.
Dependencies are inferred from the claim text.