Semiconductor integrated circuit for realizing coding circuit

Details Semiconductor integrated circuit for realizing coding circuit Semiconductor integrated circuit for realizing coding circuit

2006-08-22

2006-08-22

Alavi, Amir (Department: 2621)

Image analysis

Image compression or coding

C341S058000

Reexamination Certificate

active

07095895

ABSTRACT:
Provided is a circuit for implementing the coding of a DVI (Digital Visual Interface) standard in a small size of hardware, at high speed, and with low power consumption. In a DVI coding circuit, the input of a number-of-levels comparison circuit22for judging which of the number of bits at a level “H” and the number of bits at a level “L” is larger in the input signal of the coding circuit is set at 7 bits. The output of a number-of-transitions decrease circuit23for decreasing the number of the transitions between adjacent two bits can be inverted for 4 bits on the basis of the output of the number-of-levels comparison circuit22. A DC balance circuit24for keeping the direct current-wise balance of the output signal of the coding circuit includes a 4-bit register31, a number-of-levels difference computation circuit27, a condition decision circuit28, a bit inversion circuit29and an addition circuit30. The number-of-levels difference computation circuit27receives as its inputs the 8 bits of the output of the number-of-transitions decrease circuit23and the 4 bits of the input signal of the coding circuit.

REFERENCES:
patent: 4268861 (1981-05-01), Schreiber et al.
patent: 4800440 (1989-01-01), Kurokawa
patent: 4894713 (1990-01-01), Delogne et al.
patent: 5307298 (1994-04-01), Sawada
patent: 5432513 (1995-07-01), Okamoto
patent: 6026124 (2000-02-01), Lee et al.
patent: 6327654 (2001-12-01), Oowaki et al.
patent: 2003/0184454 (2003-10-01), Okamura et al.
patent: 02-094922 (1990-04-01), None
“Digital Visual Interface DVI”, Rev. 1.0, Apr. 2, 1999, corresponding to Digital Display Working Group, pp. 24-32.

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit for realizing coding circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit for realizing coding circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit for realizing coding circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3633857