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. 30, 1985
Filed:
Jul. 16, 1982
Applicant:
Inventor:
Yukimasa Uchida, Yokohama, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
365 96 ; 365200 ; 371 10 ;
Abstract
A programmable circuit has a fuse element grounded at one end and melted or not melted according to the data to be programmed and a select circuit for selectively producing either of two signals according to 'melted' or 'not melted' states of the fuse element. The other end of the fuse element is connected through a switching element to the power source terminal, and through a latch circuit to the select circuit. By turning on the switching element at least one time, a level corresponding to a melted state of the fuse element is latched in the latch circuit.