Touch control arrangement for data entry
Patent 4495485 Issued on January 22, 1985. Estimated Expiration Date: 
August 31, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 31, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2365566 2497661 2701279 3115803 3140358 3676607 3691555 Appliance remote touch-control panel with sound system Oscillator frequency switching circuit for remote control transmitter Capacitive touch-activated transducer system including a plurality of oscillators InventorAssigneeApplicationNo. 06/528075 filed on 08/31/1983US Classes:341/33, Capacitive actuation178/17C, Keyboard219/719, With timer331/49, Selectively connected to common output or oscillator substitution331/64, WITH INDICATOR, SIGNAL, OR ALARM379/368Plural-switch number input device (e.g., keypad)ExaminersPrimary: Crosland, Donnie L.Attorney, Agent or FirmInternational ClassesG06F 3/033 (20060101)H03K 17/96 (20060101) H03K 17/94 (20060101) H03M 11/24 (20060101) H03M 11/00 (20060101) AbstractA touch control arrangement which employs a touch panel comprising a plurality of touch keys and a network of electrically connected capacitive elements; an oscillator which incorporates the network of capacitive elements in its timing circuit; and a microprocessor coupled to the output of the oscillator and operative to control various appliance operating components as determined by the frequency of the oscillator output signal. The keys of the touch panel are operatively coupled to the network of capacitive elements such that actuation of a key or pad by the user changes the equivalent capacitance of the timing circuit causing the oscillator a generate a control signal at the frequency associated with the actuated key. | |
