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6906695 Touch control apparatus and touch control method that can be applied to electronic instrument  
A touch curve memory 110 stores therein a touch curve formed by velocity values corresponding to touch data generated by a keyboard device 20 . A correction coefficient generator 10 generates...
6805506 Keyboard with multiple indicia sets  
The present invention discloses a method for displaying individually on a plurality of keys of a keyboard or keypad two or more indicia representing two or more functions performed by each key. The...
6748568 Apparatus and method for verifying proper data entry and detecting common typing errors  
A method and apparatus for detecting typing errors of critical fixed series of characters (digits) by using at least one redundant parity digit. The invention detects the most common typing errors...
6288652 Digitally encoded keyless entry keypad switch  
A five-switch keypad apparatus having four diodes that multiplex the switch contacts onto three sense terminals. The three sense terminals create a binary code that defines eight possible switch...
6236339 Key, input unit using such key, and control system comprising such input unit and electronic apparatus acoustically connected to such input unit  
A key for transmitting data to an electronic apparatus includes a key top, a sound generating mechanism connected to the key top for generating a predetermined sound without any electrical power...
4616213 Capacitive multikey keyboard for inputting data into a computer  
A multikey keyboard for inputting data into a computer, wherein pressing a key places in circuit the point of intersection of a row conductor and column conductor respectively connected to portions...
4599607 Acoustic keyboard  
An acoustic keyboard comprises a plurality of keys arranged in a matrix. A plurality of reflector members, each one associated with a different one of the keys, reflect acoustic energy when the...
4555693 Multikey keyboard for inputting data into a computer  
A multikey keyboard for inputting data into a computer, whose keys place in circuit the points of intersection of an X rank conductor and Y rank conductor matrix, characterized in that X rank and Y...
4529967 Non contacting inductive keyboard  
An inductive keyboard, including, printed circuit patterns forming a multiplicity of key excitation patterns and key sensing patterns. The key excitation patterns are divided into groups of...
4518951 Integrated circuit for a keyboard of an electronic apparatus  
This circuit, controlled by the counter (Z) and via the row transistors (ZTm) and upon actuation of a pushbutton key, successively interrogates the row lines (1m) and, via the column line (2n) as...
4502040 Keyboard having keys activated by electrical contacts and the capacity to read one state from among four possible states  
A keyboard having keys activated by electrical contacts and the capacity to read one state from among four possible states, wherein the keyboard is a dipole disposed between two terminals between...
4498073 Keyboard with simultaneous operations  
A keyboard in which, when one of the function keys is depressed simultaneously with one of the character keys, the signal generated by the depressed function key is transmitted during a first...
4495485 Touch control arrangement for data entry  
A 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...
4442506 Portable word-processor  
A portable word-processor comprising the following components; a microprocessor and, connected thereto, a manually operable input chord keyboard having four finger keys and at least one thumb key,...
4430644 Encoding apparatus having an acoustic member with mirror-image tabs  
A simplified, symmetrical encoding apparatus of the acoustic rod type with polarized output signals, e.g., where key-actuated strikers impact an acoustic bar having a number of differently-shaped...
4417824 Optical keyboard with common light transmission members  
A keyboard assembly (FIG. 1, 11) is constructed of first light transmission members (13) second light transmission members (15), a key actuation assembly (17) having a matrix of keybuttons (25),...
4415781 Membrane switch  
A membrane switch in which switch activation produces a change in the combined resistance and capacitance across leads of the switch.
4412209 RC Array  
A switch assembly with a different combination of resistance and capacitance associated with each of a plurality of switches and with as few as two leads connecting the plurality of switches to...
4395587 Method and apparatus for representing characters  
A method and apparatus for representing characters employ a printing unit to print symbols which correspond to characters, the characters being represented either by individual printed symbols or...
4384633 Perforated acoustic transport member  
An improved acoustic transport member for use in a keyboard having key operated strikers individually actuatable for inducing acoustic energy in the form of sound waves which propagate through the...
4381500 Keyboard apparatus  
A keyboard apparatus has item keys for data entry, and select keys for changing the display of input data written on sheets, according to the item keys, and a changer for the sheets stored in a...
4381501 Encoding apparatus utilizing acoustic waves of controlled initial polarity  
Polarity of transducer signals is controlled in encoding apparatus of the acoustic rod type, e.g. where key-actuated strikers impact an acoustic bar having a transducer at each end of the bar, the...
4381502 Method and apparatus for character generation  
Generation of a character code for an alphabetic character is performed by depressing at least two keys in a sequence. The code is generated when the last key is depressed and the other keys in the...
4376469 Stepped acoustic transport member  
An acoustic transport member for use in a keyboard having key operated strikers individually actuatable for inducing acoustic energy in the form of sound waves which propagate through the member...
4375060 Electronic apparatus having special key  
Electronic apparatus having transmission capability of data from memory to a transmission line, such as a telephone line, having print-out capability of the data being transmitted, and having a...
4346369 Keyboard encoder-decoder  
A keyboard encoder/decoder and method is provided for encoding on a keyboard output into a serial format data word representative of one and only one actuated key for transmission to an external...
4344068 Coding schemes for acoustic delay line data collection system  
A magnetoacoustic system adapted to use as a keyboard can employ a serpentine acoustic delay line passing under a number of transducers which are activated simultaneously with a current pulse...
4329541 Dialing system for teleprinter  
A dialing system which utilizes a keypad on teleprinters retrofitted into existing teleprinter models through interfacing by voltage biasing and output circuitry with integrated circuit components...
4319077 Circuit for coded symbol conversion  
A circuit for coded symbol conversion has first and second memories and a switching stage. Standard code characters from a keyboard are entered into the first memory and if the entered character is...
4311991 Acoustic transmission member  
An acoustic transmission member is disclosed for use in an encoding system utilizing acoustic energy wherein diverging sound waves are induced within the member in response to selected actuation of...
4298861 Integrated ultrasonic magnetic encoder  
An ultrasonic waveguide provides the encoding of magnetic keys on a keyboard. The magnetic keys couple their respective magnetic fields to an ultrasonic waveguide producing signals in a given time...
4277778 Information transmitting system  
A system for transmitting information from a plurality of observation stations to a central station, especially for military purposes. Every observation station is equipped with a coder and a code...
4258356 Multi bar encoding apparatus utilizing acoustic energy  
An encoding apparatus in which strikers actuated by the keys of a keyboard, for example, impact selected ones of a group of parallel bars (equivalent to sonic delay lines) at points substantially...
4241333 Key-operated arrangement for producing code characters  
A key-operated arrangement for teleprinters as a keyboard for encoding characters and data arranged in matrix fashion in rows and columns. Along with the keyboard an addressable fixed-value store...
4231016 Input signal recognition circuit  
An input signal recognition circuit for a control system having an array of momentary switching elements (hereinafter referred to as "keys") whose number is larger than that of the array input...
4190826 Multidevice position digital encoder  
At least one movable device is mechanically coupled to a coupling device which moves in response to the motion of the movable device. The coupling device moves in a path which closely parallels the...
4140872 Control system for functional sequences  
A control system is disclosed for the control of sequential flow of functions in teletypewriters and data typewriters. Input signals are presented to the control system which release the carrying...
4138197 Key actuator  
Actuator for use with a push-button keyboard in which the keys are arranged in an array of intersecting rows and columns. A single solenoid is provided for each row and column, and means operated...
4136336 Keyboard apparatus  
A keyboard apparatus includes a pair of juxtaposed tablets against which a single probe or signal pen may be applied through an overlay or overlays. Each tablet has a multiplicity of key segments...
4132487 Keyboard switch  
This invention relates to a keyboard switch or push button transducer for use in keyboards which makes use of the advantages of resistive and capacitive methods of closure. The switch element is...
4121048 Multiple shift electronic keyboard  
A full-roll electronic keyboard having upper and lower case capabilities is disclosed. The keyboard includes a shift key which when depressed will generate first and second coded signals with the...
4089401 Segmented printout device  
A printout device for calculators and the like includes a plurality of print segments, each encased in elastomer and embedded in a rigid block with the lower, indicia forming ends flush with the...
4074262 Key input circuit  
A key input circuit includes a binary-coded N-ary counter consisting of a plurality of binary counters, a decoder decoding coded pulse outputs of the counter for converting the counter outputs into...
4072820 Apparatus for coding input data characters  
Apparatus for coding input data characters from a keyboard incorporates apparatus for recognizing characters which are to be represented by two successive code representations, rather than the...
4060163 Keyboard Guard  
A guard for protecting the keys of a keyboard from being untimely depressed, the guard is formed of a rigid material, such as an acrylic plastic, and contains an aperture(s) therethrough for...
4050566 Mechanical code converter for use with a typewriter or the like  
Apparatus is disclosed for use with typewriters of the type having trip hammers and is adapted to receive combinations of electrical signals which uniquely define the respective characteristics and...
4048439 Control device of a teletypewriter to be used by invalids  
This invention relates to a control device of a teletypewriter to be used by invalids, which comprises at least one control member, a synoptical board and at least one electronic part, said...
4042777 One-handed keyboard and its control means  
A keyboard which has 10 keys controlled by the four fingers and four keys controlled by the thumb of the same hand. On it, the operator forms chords somewhat as a pianist forms chords on a piano....
4033030 Method of manufacturing keyswitch assemblies  
A keyswitch assembly including a circuit board having a plurality of circuits, each circuit terminating with a pair of first and second contacts, and a curved, resilient contact plate associated...
3998310 Apparatus for recording data in arabic script  
An apparatus for recording data in arabic script is disclosed. Arabic script is written from right to left and characters of arabic script are written in two forms referred to as short form and...
Matches 1 - 50 out of 131 1 2 3 >