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:
Jun. 18, 1996
Filed:
Mar. 03, 1995
Shinji Hinoshita, Ibaraki, JP;
Nobuo Ohmori, Miyagi, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
In a method for measuring transmission parameters of a balanced pair, a unbalanced type equipment which is widely used as compared to a balanced type equipment which is not used in practical is used. In the measurement, the balanced pair is connected to the unbalanced type equipment or via a unbalanced/balanced type transformer thereto at the measuring end, wherein predetermined terminated states are set at the measuring and far-ends to measure input admittances dependent on the terminated states. A characteristic impedance and a propagation constant for the transmission parameters are calculated from predetermined equations into which the measured input admittances are substituted.