Limbach & Limbach L.L.P.
Three-dimensional video signal generator and three-dimensional video display apparatus
 A three-dimensional video signal generator has a high-definition video signal source for generating left and right high-definition video signals having, as left and right video signals, video signals in respective effective scanning periods of odd-numbered and even-numbered field signals of a interlaced-scanning high-definition video signal composed of 1125 scanning lines and having an interlace factor of 2:1. The left and right video signals in the respective effective scanning periods of the left and right high-definition video signals supplied from said high-definition video signal source are vertically compressed in time with a compression ratio of 11:5. The compressed left and right video signals in the odd-numbered and even-numbered fields are combined into a three-dimensional video signal disposed in each of effective scanning periods of odd-numbered and even-numbered field signals of one high-definition video signal, with a pseudo vertical blanking period of a given time duration inserted between the compressed left and right video signals such that the time interval of the compressed left and right video signals becomes a 1/2 field period. 
Sony Corporation
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Yasuhiro Hisafumi Toshinobu Hidehiko
Kawamura Yamada Isobe Okada