Cache memory system for a color ink jet printer

Details Cache memory system for a color ink jet printer Cache memory system for a color ink jet printer

1993-04-29

1995-09-12

Powell, Mark R.

395164, G06F 1500

Patent

active

054505321

ABSTRACT:
A color printer receives P, N-bit values indicating a computer generated color to be printed, there being 2.sup.NP possible combinations of bits in the P, N-bit color values. Each N-bit value has a least significant bit (LSB). Upon receiving P, N-bit color values, the color printer creates an address from P combined multiple-bit segments of each of the received N-bit values, each multiple bit segment excluding at least a LSB of each N-bit value. The color printer includes a cache memory having substantially less addresses than 2.sup.NP, each cache address including first and second entries, a first entry being P values indicative of a computer generated color and a second entry being P values usable by the color printer to reproduce the first entry. A processor determines if there is a match at an address created from a received computer color value between a first entry and the received computer color value, the match disregarding an LSB of each N-bit value comprising the first entry at the address. The processor is responsive to a determined match to access the second entry at the address and to employ the second entry to control the color printer. Exclusion of the LSB's in determination of the presence of a match enables a substantially greater probability of finding such a match in the cache memory.

REFERENCES:
patent: 4270141 (1981-05-01), Sakamoto
patent: 4953104 (1990-08-01), Yeh et al.
patent: 4954889 (1990-09-01), Endo et al.
patent: 4965751 (1990-10-01), Thayer et al.
patent: 5029105 (1991-07-01), Coleman et al.
patent: 5056044 (1991-10-01), Frederickson et al.
patent: 5131080 (1992-07-01), Fredrickson et al.
patent: 5170468 (1992-12-01), Shah et al.

Affiliated with

Also associated with

Rating

Cache memory system for a color ink jet printer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cache memory system for a color ink jet printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cache memory system for a color ink jet printer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-412771