H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/56
H04N 5/45 (2006.01)
Patent
CA 1256984
ABSTRACT OF THE DISCLOSURE A picture-in-picture type television receiver in which a sub-picture screen is inset within a main picture screen to allow the same or different pictures to be simultaneously displayed and which includes a circuit for separately displaying the channel numbers of both the main and sub-picture screens momentarily whenever the picture content of the sub-picture screen is changed and whenever the picture content of the main picture is changed if the sub-picture is display
525416
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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