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:
Nov. 26, 1996
Filed:
Oct. 13, 1995
Lawrence H Sasaki, Oxford-on-Rideau, CA;
Northern Telecom Limited, Montreal, CA;
Abstract
An apparatus includes an IC chip with a signal transmitter and an IC chip with a signal receiver, both chips being mounted on a printed circuit board and being connected via conductors on the board. The signal transmitter has a voltage-current converter and a high output impedance current amplifier. The signal receiver has a current-voltage converter. The voltage-current converter converts the voltage of the digital signal to current which in turn is amplified by the high output impedance current amplifier. The amplified current flows via the conductors in the receiver. The digital signal is transferred via the conductors on the current basis. Due to the transmission of the digital signal of current from the signal transmitter to the signal receiver via the conductors, signal spikes while transmitting are reduced and noise immunity is improved. Also, EMI (electromagnetic interference) emission is reduced and power dissipation is small.