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:
Jan. 27, 2004
Filed:
Aug. 07, 2002
Toru Takeuchi, Tokyo, JP;
Takehiko Umeyama, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An H-type bridge circuit includes four transistors, two resistors, and a write head. A write current supplied from a current supply circuit including a first of the transistors and resistors flows through the write head and is received in a current receiving circuit including a second of the resistors and a fourth of the transistors, and another write current supplied from a current supply circuit including the second of the transistors and the second resistor flows through the write head and is received in a current receiving circuit including the first of the resistors and the third of the transistors. Impedance of the write head matches an output impedance of the current supply circuit and matches an input impedance of the current receiving circuit.