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:
Mar. 17, 1992
Filed:
Apr. 06, 1990
Nobuyuki Toyoda, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In an IC device, an IC body having a predetermined function and high-frequency circuits for testing high-frequency characteristics of the IC body are formed on a single chip. The test circuits include an L-H frequency conversion circuit arranged on the input side of the IC body and an H-L frequency conversion circuit arranged on the output side. The test circuits can switch a connecting state between the conversion circuits and the IC body in response to an external control signal. The test circuits can be disconnected from the IC body after a test is completed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile