Video camera with coarse analog and fine digital black level adj

Details Video camera with coarse analog and fine digital black level adj Video camera with coarse analog and fine digital black level adj

1993-03-30

1995-04-25

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Dc insertion

348693, 348697, 348615, 348257, 348687, 348688, H04N 972, H04N 516, H04N 5235

Patent

active

054103657

ABSTRACT:
In an image pick up device, signal level of red, green and blue color signals is coarsely adjusted in a signal processing circuit, and then a black level of video signal is finely adjusted in a digital signal processing circuit, thereby being capable of easily adjusting the black level and improving the accuracy of black level adjustment.

REFERENCES:
patent: 4481535 (1984-11-01), Hodd et al.
patent: 4489344 (1984-12-01), Ikeda et al.
patent: 4694334 (1987-09-01), Bucher et al.
patent: 4701786 (1987-10-01), Yamanaka
patent: 4786969 (1988-11-01), Shouji et al.
patent: 4823188 (1989-04-01), Fauquet et al.
patent: 4907084 (1990-03-01), Nagafusa
patent: 5008753 (1991-04-01), Kitaura et al.
patent: 5057920 (1991-10-01), Wilkinson
patent: 5087973 (1992-02-01), Kawahara
patent: 5087976 (1992-02-01), Oda et al.
patent: 5105276 (1992-04-01), Schrock
patent: 5111311 (1992-05-01), Yamamoto
patent: 5142354 (1992-08-01), Suzuki et al.
patent: 5146332 (1992-09-01), Hara et al.
SMPTE Journal vol. 99, No. 9, 30 Sep. 1990, Scarsdale, NY US pp. 727-733, XP000108997 S. Nishikawa et al. `Broadcast-Quality TV Camera with Digital Signal Processor`.
IEEE Transactions on Consumer Electronics vol. 35, No. 3, 30 Aug. 1989, New York, US pp. 382-388 XP000065834 K. Parulski et al. `A digital color CCD Imaging System using custom VLSI circuits`.
Patent Abstracts of Japan vol. 14, No. 346 (E-956) 26 Jul. 1990 & JP-A-21 19 381 (Toshiba Corp) 7 May 1990.
Benson, K. Blair, "Television Engineering Handbook", McGraw Hill Book Company, 1986, pp. 17.9-17.13.

Affiliated with

Also associated with

Rating

Video camera with coarse analog and fine digital black level adj does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video camera with coarse analog and fine digital black level adj, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video camera with coarse analog and fine digital black level adj will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1571024