G - Physics – 06 – K
Patent
G - Physics
06
K
350/37, 314/43.6
G06K 15/10 (2006.01) B41J 3/00 (2006.01) G06K 15/02 (2006.01) G06K 15/12 (2006.01) H04N 1/40 (2006.01)
Patent
CA 1180103
ABSTRACT OF THE DISCLOSURE A printing apparatus for printing a picture which is formed by a pluraility of full and half dots on the screen of a television receiver in response to a luminance signal supplied thereto, includes an integration circuit for integrating the transmitted signal and having a time constant which is selected so that the integrated transmitted signal of a saw-tooth wave- form rises to a first level greater than a threshold level when the transmitted signal corresponds to a full dot of displayed information and rises to a second level less than the threshold level when the transmitted signal corresponds to half dot information; a latch circuit for latching the integrated transmitted signal only when the level thereof is greater than the threshold level in response to a latch signal supplied thereto, so as to produce an output signal corresponding only to that portion of the displayed picture formed of full dots; and a printer for printing the picture in response to the output signal.
386512
Gowling Lafleur Henderson Llp
Sony Corporation
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