Television transmission system

Claim 3

A method for simultaneously transmitting television signals as claimed in claim 1, characterized in that said component comprises a pulse located in the video signal of said second television signal, the position of said pulse in said video signal providing said indication.

Claim 4

A method for simultaneously transmitting television signals as claimed in claim 2 in which said second television signal contains a synchronizing signal, characterized in that said pulse has an amplitude which is less than half that of said synchronizing signal.

Claim 5

A method for simultaneously transmitting television signals as claimed in claim 1, characterized in that said method comprises transmitting said component, comprising at least one pulse, during the field blanking period of said second television signal.

Claim 6

Television transmission equipment for simultaneously transmitting television signals depicting the same scene, for standard and wide picture formats of, respectively, a standard aspect ratio and a wider than standard aspect ratio with both picture formats having the same height, said television transmitting equipment comprising means for generating a first television signal from signal information representing a scene having said wider than standard aspect ratio, said first television signal including a portion of said signal information representing a selected portion of said scene having said standard aspect ratio, means for applying said first television signal to a first transmission path, means for generating a second television signal from said signal information representing said scene, said second television signal including a further portion of said signal information representing a remaining portion of said scene outside the selected portion of standard aspect ratio, means for applying said second television signal to a second transmission path, characterized in that said television transmission equipment additional comprises means for selecting said selected portion of said scene within the width of said scene for said first television signal, means for generating a component indicating the relative position of said selected portion within the width of said scene contained in said first television signal, and means for adding said component to said second television signal.

Claim 7

Television transmission equipment for simultaneously transmitting television signals depicting the same scene, for standard and wide picture formats of, respectively, a standard aspect ratio and a wider than standard aspect ratio with both picture formats having the same height, said television transmitting equipment comprising means for generating a first television signal from signal information representing a scene having said wider than standard aspect ratio, said first television signal including a portion of said signal information representing a selected portion of said scene having said standard aspect ratio, means for applying said first television signal to a first transmission path, means for generating a second television signal from said signal information representing said scene, said second television signal including a further portion of said signal information representing a remaining portion of said scene outside the selected portion of standard aspect ratio, means for applying said second television signal to a second transmission path, characterized in that said television transmission equipment additional comprises means for selecting said selected portion of said scene within the width of said scene for said first television signal, means for generating a component indicating the relative position of said selected portion within the width of said scene contained in said first television signal, and means for adding said component to said second television signal.

Claim 8

Television transmission equipment as claimed in claim 5, characterized in that said selecting means and said component generating means comprise a steering control under the control of an operator for determining the position of said selected portion and for generating said component to be added to said second television signal.

Claim 9

Television transmission equipment as claimed in claim 6, characterized in that said component comprises a steering pulse located in the video signal of said second television signal, the position of said pulse in said video signal indicating the position of said selected portion.

Claim 10

Television transmission equipment as claimed in claim 6, characterized in that said component comprises at least one pulse located in the field blanking period of said second television signal which indicates the position of said selected portion.

Claim 11

Television transmission equipment as claimed in claim 7 or 8, in which a pulse generator provides the synchronizing signal present in said second television signal, characterized in that said steering control is coupled to said pulse generator for generating the steering pulse for said second television signal.

Claim 12

Television reception equipment for use with the television transmitting equipment as claimed in claim 5, 6, 7 or 8, comprising a first input terminal for receiving said first television signal present in said first transmission path, a second input terminal for receiving said second television signal present in said second transmission path, means for combining the video information contained in said first and second television signals for reconstructing said signal information representing said scene having said wider than standard aspect ratio, characterized in that said television reception equipment additionally comprises means for controlling said combining means in response to said component in said second television signal, whereby the information in said first television signal is in the same position of said scene, on display, as said selected portion, and the information in said second television signal is in the same position of said scene, on display, as said remaining portion.

Claim 13

Television reception equipment as claimed in claim 10, additionally comprising a pulse generator responsive to synchronizing signals present in said first and/or second television signals, characterized in that said pulse generator is also responsive to said component in said second television signal, said pulse generator producing control pulses for controlling the means for combining said video information in said first and second television signals for reconstructing said wide picture format display.