Touch detection for a digitizer
First Claim
1. A digitizer for providing position detection of both a stylus and finger touch when present over an electronic display screen, the digitizer comprising:
- a transparent arrangement of sensing conductors located at an electronic display screen for detecting both the stylus and the finger touch when present, at least some of the sensing conductors having outputs, anda signal generator providing a signal for exciting circuitry in the stylus; and
circuitry of the digitizer for detecting output on one or more sensing conductors, the output arising from one or both of the finger touch and a signal emitted by the stylus, wherein the output provides information for detecting position of one or both the finger touch and the stylus when present responsive to the output detected.
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Accused Products
Abstract
A detector for providing position detection of objects over a sensor with a first and second set of conductor lines forming a grid with a plurality of junctions there between at which the conductor lines do not contact, includes a signal generator providing a signal to at least one conductor line of the first set of conductor lines, and circuitry detecting output arising from one or both of an electromagnetic stylus and one or more fingers when present. The output arising from each of the one or more fingers is detected from at least one conductor line of the second set of conductor lines in response to the signal provided to the at least one conductor line of the first set of conductor lines. The circuitry detects positions of one or both the electromagnetic stylus and each of the one or more fingers when present responsive to the output detected.
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Citations
25 Claims
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1. A digitizer for providing position detection of both a stylus and finger touch when present over an electronic display screen, the digitizer comprising:
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a transparent arrangement of sensing conductors located at an electronic display screen for detecting both the stylus and the finger touch when present, at least some of the sensing conductors having outputs, and a signal generator providing a signal for exciting circuitry in the stylus; and circuitry of the digitizer for detecting output on one or more sensing conductors, the output arising from one or both of the finger touch and a signal emitted by the stylus, wherein the output provides information for detecting position of one or both the finger touch and the stylus when present responsive to the output detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification