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:
Jul. 21, 1998
Filed:
Jun. 30, 1995
Takashi Saegusa, Kawasaki, JP;
Hisatoshi Fujiwara, Koganei, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An optical system including a first microcomputer having a first communication terminal and a second communication terminal, a second microcomputer having a third communication terminal which is connected to the first communication terminal and sends and receives data, and a non-volatile memory having a fourth communication terminal which is connected to the second communication terminal and able to receive data, the non-volatile memory storing contents even after power to the non-volatile memory is turned OFF. The first microcomputer reads first data which is stored in a first region of the non-volatile memory, from the non-volatile memory via the second communication terminal, transfers the first data from the first communication terminal to the second microcomputer immediately after power is supplied, and uses second data, which is stored in a second region of the non-volatile memory and which has been transferred via the second communication terminal, to perform processing.