Source: http://slideplayer.com/slide/4156301/
Timestamp: 2017-01-25 01:54:38
Document Index: 344712129

Matched Legal Cases: ['Art 1', 'Art 2', 'Art 1', 'Art 2', 'Art 1', 'Art 2', 'Art 1', 'Art 2', 'Art 1', 'Art 1', 'Art 1', 'Art 2', 'Art 2', 'Art 2', 'Art 1', 'Art 2', 'Art 2', 'Art 2', 'Art 1', 'Art 2']

Patent-in-suit. Prior Art 1 – Stethoscope + Mic Prior Art 2 – Tactile Sensor. - ppt download
Published byDexter Axford
Presentation on theme: "Patent-in-suit. Prior Art 1 – Stethoscope + Mic Prior Art 2 – Tactile Sensor."— Presentation transcript:
Patent-in-suit 2
Prior Art 1 – Stethoscope + Mic 3
Prior Art 2 – Tactile Sensor 4
Evaluating Validity (Obviousness) over Prior Art Capacitive Microphone in Stethoscope (‘849 patent, filed 1992) Capacitive Touch Sensor (‘389 patent, filed 1997) Prior Art 1Prior Art 2 + 5
Patented Technology (‘854) 4 Movable, Flexible Diaphragm Electrically Conductive Surface of Diaphragm Electric Field Electrically Conductive Plate Attachment Means to Mount to Housing 6
Claim 13 An electronic stethoscope including an acoustic-to-electrical transducer for detecting body sounds, the transducer comprising: -a stethoscope diaphragm having an electrically conductive surface, the diaphragm being mounted in a stethoscope chestpiece such that the diaphragm can contact the body for body sound detection and vibrate in response to body sounds; -a fixed conductive plate substantially parallel to the diaphragm, mounted within the chestpiece, the conductive plate being positioned at a distance about or exceeding 0.5 mm from the diaphragm, the diaphragm conductive surface and fixed conductive plate forming two plates of a capacitor and connected in the form of an electrical capacitance to electrical circuitry; -a capacitance-to-electrical signal conversion means to convert diaphragm-plate capacitance changes due to body sound vibrations to electrical signals; -the stethoscope further comprising signal amplification means and at least one electrical-to-acoustic transducer connected to signal amplification means, to reproduce body sounds as detected by said transducer. 7
What is a capacitive sensing? Mechanical Signal  Electrical Signal 8
Prior Art 1 – Microphone inside Stethoscope Capacitive Microphone in Stethoscope (‘849 patent, filed 1992) Prior Art 1 9
Brief History of Stethoscopes 1816 Monaural 1851 Binaural 1926 Bell/Diaphragm Modes 1962 Electronic Stethoscope with Piezo-electric Sensor 1986 Electronic Stethoscope with Hydrophone Sensor 1992 Electronic Stethoscope with Microphone 1999 ‘854 Patent Filed (Time-line NOT drawn to scale) 10
Prior Art 1 – Stethoscope +Mic Electret (Capacitive) Microphone (3.49:3.54) 11
Patent-in-suit - 6,498,854 ‘Transducer for Sensing Body Sounds” 4 12
What is tactile sensing? 13
Prior Art 2 – Tactile Sensors Capacitive Touch Sensor (‘389 patent, filed 1997) Prior Art 2 14
Prior Art 2 – Tactile Sensor Finger Flexible, Insulating Layer Stylus (Rigid, in a typical embodiment) Ground Plane “X-Y Matrix” X-trace Y-trace 15
Key Dates Patent-in-suit Prior Art 1 Prior Art 2 16
Prior Art 2 – Tactile Sensor (3.36:3.52) 17
Insulating Film Ground Plane Prior Art 2 – Tactile Sensor Flexible, Displaceable, Insulating Layer “X-Y Matrix” (4.31:4.37) Download ppt "Patent-in-suit. Prior Art 1 – Stethoscope + Mic Prior Art 2 – Tactile Sensor."
Capacitors. What are they? A device that stores electrical potential energy by storing charge. How is that useful? Capacitors are used when a lot of energy.