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:
Feb. 06, 2007
Filed:
May. 13, 2003
Orazio Musumeci, Gela, IT;
Ahmed Kari, Aix en Provence, FR;
Orazio Musumeci, Gela, IT;
Ahmed Kari, Aix en Provence, FR;
STMicroelectronics S.R.L., , IT;
Abstract
A start-detection circuit and a stop-detection circuit detect the start condition and the stop condition in a data signal associated with a clock signal according to the IIC protocol. The start-detection circuit comprises: a first detector to produce a first reset signal when a trailing edge of the data signal is detected; a counter to count pulses of a reference signal when the first reset signal is received, and to produce an enabling signal when the number of pulses counted has reached a predefined number; a second detector to store the enabling signal when a trailing edge of the clock signal is detected. The stop-detection circuit comprises a third detector to produce a stop signal when a leading edge of the data signal is detected after the detection of a leading edge of the clock signal.