The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Jun. 16, 2000
Kevin Chiang, Fremont, CA (US);
Shengquan Wu, Sunnyvale, CA (US);
Li-Huan Jen, Santa Clara, CA (US);
Oak Technology, Inc., Sunnyvale, CA (US);
Abstract
A method for set-up of a group of parameter values needed in a CD-R or CD-RW write cycle, where the time allotted for set-up is as low as six clock cycles. In a clock cycle from a preceding write cycle, first and second parameter values are read into first and second registers, and a third parameter value is read into a first SRAM. In clock cycles 1-5 of the present write cycle, fourth, fifth, sixth, seventh and eighth parameter values are read into second, third, fourth, fifth and sixth SRAMs. In clock cycle no. 6 or later of the present write cycle, three sums (or differences) of selected combinations of these eight parameter values are calculated and stored, new first and second parameter values are read into first and second registers, and a new third parameter value is read into another SRAM. The method is generalized to K parameters stored in registers, N parameters stored in SRAMs and calculation of M selected linear combinations of the K+N parameter values.