Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shu-Ting Liao0
Chao-Fa Lee0
Cheng-Hsing Kuo0
Date of Patent
February 12, 2013
Patent Application Number
12923548
Date Filed
September 28, 2010
Patent Primary Examiner
Patent abstract
An ultrasonic phase-shift detection device includes a clock generator, a divider, a first counter, a comparator, a phase detector and a second counter. The divider is provided for dividing the clock signal to generate ultrasonic signals. The comparator is provided for comparing the counting value of the first counter and a predetermined number. The phase detector is provided for comparing the phase shift between different ultrasonic signals. The second counter is provided for counting to generate the digital result signal.
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