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. 13, 2009
Filed:
Apr. 08, 2005
George P. Humphrey, Merrimack, NH (US);
William Edward Martin, Bedford, NH (US);
George P. Humphrey, Merrimack, NH (US);
William Edward Martin, Bedford, NH (US);
Linear Technology Corporation, Milpitas, CA (US);
Abstract
A integrated circuit (IC) implementation of a protection circuit detects and resolves a fault on a bus, such as a stuck-low condition on an I2C bus. The circuit includes logic that detects a fault condition caused by the slave device, e.g. when one or both lines are low for a period longer than a timeout value in the I2C example. Upon detecting the fault condition, the logic disconnects the slave device from the data line and the clock line, for example by activation of switches incorporated in the IC. This typically frees the bus for use by other devices. The logic may also send the slave device one or more clock signals to clear the fault and/or a stop bit when the fault clears to reset the data register in the slave device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile