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:
Jul. 20, 2010
Filed:
Oct. 28, 2008
Jia Peng, Singapore, SG;
Kwee Chong Chang, Singapore, SG;
Shan Jiang, Beijing, CN;
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
Digital trimming logic is included in a microelectronic device of a type that produces an output signal in response to an input signal and a threshold signal. Trimming logic values are produced in response to a clock signal that is applied to the device in a trimming mode. The clock signal can be applied to a device pin that is used in normal operation to provide an output signal, thus allowing the pin to serve a dual function. The trimming logic changes the trimming logic value in response to the clock signal until the trimming logic value reaches a trim value at which the threshold signal is substantially equal to the input signal. The trimming logic then stores the trim value in a non-volatile memory and enters a locked mode in which further trimming is prevented and the device is ready for normal operation.