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US Patent 9483129 Active stylus with fractional clock-cycle timing

Patent 9483129 was granted and assigned to Atmel Corporation on November, 2016 by the United States Patent and Trademark Office.

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Contents

Is a
Patent
Patent

Patent attributes

Patent Applicant
‌
Atmel Corporation
Current Assignee
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Atmel Corporation
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
9483129
Patent Inventor Names
Eivind Holsen0
Date of Patent
November 1, 2016
Patent Application Number
14709755
Date Filed
May 12, 2015
Patent Citations Received
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US Patent 12124647 Position indicator, position detecting device, position detecting circuit, and position detecting method
0
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US Patent 11768554 Position indicator, position detecting device, position detecting circuit, and position detecting method
‌
US Patent 11853488 Electronic pen and coordinate input apparatus
0
Patent Primary Examiner
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Fred Tzeng
Patent abstract

In one embodiment, a method performed by an active stylus includes wirelessly receiving a synchronization signal from a touch controller. The method also includes determining a synchronization parameter of the synchronization signal, the synchronization parameter including an integer part and a fractional part, the integer part representing a positive integer multiple of an active-stylus clock period and the fractional part representing a fractional portion of the active-stylus clock period. The method further includes wirelessly transmitting information for reception by the touch controller, where the information includes a series of data portions, a successive data portion in the series being separated from a preceding data portion by a time interval. The time interval is based at least in part on the active-stylus clock period, the integer part of the synchronization parameter, and an updated fractional error value.

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