Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1995-06-07
1996-10-29
Peng, John K.
Television
Camera, system and detail
Combined image signal generator and general image signal...
358906, 386 38, H04N 5228, H04N 979
Patent
active
055701280
ABSTRACT:
In order to achieve a digital video camera apparatus which decreases the number of components and facilitates connection with a digital VTR, a luminance signal Y and a color signal C input from external input terminals (110, 118) are converted into digital signals by A/D converters (136, 138) by sampling these signals respectively at the sampling frequency of a digital recording/reproduction device (113) and a frequency four times the subcarrier frequency, the digital signals are selected by selectors (135, 137) together with signals Y and C from a digital signal processing circuit (106), and the selected signals are supplied to the digital signal recording/reproduction device (113). Color-difference signals are supplied after their frequency is converted into the sampling frequency of the digital signal recording/reproduction device (113) by frequency converters (139a, 139b).
REFERENCES:
patent: 4812920 (1989-03-01), Nagashima
patent: 4858032 (1989-08-01), Okada et al.
Japanese Patent Abstract JP2132988, Futagawa Yoshikiyo, Digital Y/C Separating Method, May 22, 1990.
Patent Abstracts of Japan, vol. 10, No. 39 (E-381) published Feb. 15, 1986, corresponding to Japanese Patent No. JP-A-60 194 683.
Symposium Record of the Broadcast Sessions, pp. 250-269, XP268896, Jun. 13, 1992.
Canon Kabushiki Kaisha
Hsia Sherrie
Peng John K.
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