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. 24, 2014
Filed:
May. 10, 2011
Takao Hashimoto, Osaka, JP;
Naoyuki Nakamura, Kyoto, JP;
Takao Hashimoto, Osaka, JP;
Naoyuki Nakamura, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A receiving unit converts a pulse received from a transmission unit into a digital output signal and send back the received pulse to the transmission unit via an isolated communication unit, when it receives the pulse transmitted from the transmission unit; the transmission unit includes: an edge pulse generating circuit for generating a pulse corresponding to a transition of the digital input signal between a first level and a second level; and a verification circuit configured to receive the pulse sent back from the receiving unit, determine whether or not the pulse has been sent back from the receiving unit, and generate an additional pulse when the verification circuit determines that the pulse has not been sent back from the receiving unit and is configured to transmit the pulses generated in the edge pulse generating circuit and in the verification circuit, to the receiving unit, via the isolated communication unit.