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Class Information
Number: 341/33
Name: Coded data generation or conversion > Bodily actuated code generator > Including keyboard or keypad > Capacitive actuation
Description: Subject matter in which the operation of a control element is sensed by a capacitive sensor.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
4550310 Touch sensing device Oct. 29, 1985
4543564 Interference suppression apparatus for a capacitive keyboard Sep. 24, 1985
4495485 Touch control arrangement for data entry Jan. 22, 1985
4495651 Broadcast receiver comprising an entirely electronic control device Jan. 22, 1985
4492958 Device for controlling and displaying the functions of an electric or electronic apparatus Jan. 8, 1985
4475235 Signature verification sensor Oct. 2, 1984
4458293 Capacitive keyboard Jul. 3, 1984
4453198 Linear feel keyswitch with hysteresis Jun. 5, 1984
4447692 Control system with interactive display May. 8, 1984
4446350 Induction heating cooking apparatus May. 1, 1984
4439647 Touchpad keyboard Mar. 27, 1984
4435090 Static pick-up for timepiece Mar. 6, 1984
4431882 Transparent capacitance membrane switch Feb. 14, 1984
4431988 Microprocessor-based keyboard/display unit for configuring control instruments Feb. 14, 1984
4413252 Capacitive switch and panel Nov. 1, 1983
4412209 RC Array Oct. 25, 1983
4408252 Low profile keyboard switch Oct. 4, 1983
4405918 Current sensing of capacitive keyboard arrays Sep. 20, 1983
4400758 Capacitance switch arrangement Aug. 23, 1983
4394643 Capacitive touch panel control Jul. 19, 1983
4385366 Programmable device using selectively connectable memory module to simultaneously define the functional capability and the display associated with input switches May. 24, 1983
4380007 Proximity switch Apr. 12, 1983
4379287 Capacitive switch and panel Apr. 5, 1983
4377049 Capacitive switching panel Mar. 22, 1983
4367385 Capacitance switch Jan. 4, 1983
4363029 Switch for sensing proximity of an operator Dec. 7, 1982
4363027 Touch sensitive control panel utilizing pyroelectric material Dec. 7, 1982
4323829 Capacitive sensor control system Apr. 6, 1982
4307383 Touch sensitive control panel utilizing pyroelectric material Dec. 22, 1981
4304976 Capacitive touch switch panel Dec. 8, 1981
4305135 Program controlled capacitive keyboard variable threshold sensing system Dec. 8, 1981
4293987 Method of fabricating capacitive touch switch panel Oct. 13, 1981
4291303 Touch pad and display tube circuitry Sep. 22, 1981
4290061 Electrically integrated touch input and output display system Sep. 15, 1981
4290052 Capacitive touch entry apparatus having high degree of personal safety Sep. 15, 1981
4281323 Noise responsive data input apparatus and method Jul. 28, 1981
4275383 Patient signalling system Jun. 23, 1981
4274752 Keyboard multiple switch assembly Jun. 23, 1981
4263659 Electronic instrument with a flexible keyboard Apr. 21, 1981
4257117 Electronic watch with touch-sensitive keys Mar. 17, 1981
4250495 Touch sensitive control panel and a method of manufacture thereof Feb. 10, 1981
4242676 Interactive device for data input into an instrument of small dimensions Dec. 30, 1980
4242667 High density proximity switch arrangement Dec. 30, 1980
4237421 Single-electrode capacitance touchpad sensor systems Dec. 2, 1980
4234871 Capacitive keyboard for data processing equipments Nov. 18, 1980
4233522 Capacitive touch switch array Nov. 11, 1980
4224615 Method of using a liquid crystal display device as a data input device Sep. 23, 1980
4211915 Keyboard verification system Jul. 8, 1980
4206336 Control apparatus primarily intended for use with stoves employing induction heating Jun. 3, 1980
4176575 Improved touch operated capacitance switch circuit for an electronic organ Dec. 4, 1979

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