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7998158 Surgical saw blade having at least one pair of opposed teeth shaped as right triangles  
A cutting saw blade for use with an oscillatory power tool used in surgical bone cutting procedures including a blade having a distal end provided with teeth whose tips are located on a tangent...
7396177 Universal pen with position or motion sensing  
A pen that includes a marking device for marking a visible path onto a first surface. The marking device is electronically controllable to change a value of an attribute of the path such as color,...
7295922 Interactive map production  
A method of producing an interactive map using a computer system. The method includes determining graphic data indicative of a visible representation of a map of a geographic area and determining...
6808330 Universal pen with sampler  
A pen has a marking device operative to mark a visible path onto a surface. The marking device is electronically controllable to change at least one of the attributes of the path. The attributes...
6550997 Printhead/ink cartridge for pen  
A cartridge for a pen has an electronically controllable marking device, such as an ink jet printhead, for marking a visible path on a surface, a non marking stylus nib that in use contacts the...
4649231 Method for the transmission of characters by means of the code combinations of a telegraph alphabet  
It is an object of the present invention to provide a teleprinting machine capable of transmitting and writing capital and small letters, where the number of additionally transmitted shift code...
4511758 Reduction of message length in a communication system  
In a message communication system and process, a character string with a plurality of characters is encoded into a compact code, which is transmitted to a reception side. At the reception side,...
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,...
4408182 Lighting and morse code signaling device  
A lighting and signaling device is provided which is capable of both lighting and signaling intermittent signals such as Morse code signals. The lighting and signaling device has a switch for...
4333091 Command buffers for electronic code keyer  
A system is disclosed for utilizing command buffers in a microprocessor controlled electronic code keyer for storing, rather than text to be transmitted, command strings for keyer operation. The...
4292624 International Morse Code number generator  
The binary coded decimal of a number is selectively loaded into presettable counters. A switching means sequentially connects each of the binary levels of each of the digits comprising the number...
4166196 Electric direct current telegraphy transmitter  
An electronic transmitter for direct current telegraphy by means of polar line currents has a switching circuit that selectively connects one of the two poles of a telegraphy battery through a...
4163870 Circuit for producing a pulse succession  
A circuit for producing a pulse succession of long duration from several mutually independently produced synchronous pulse successions of shorter duration in which the output signal is derived as...
4161623 Code generator for text transmission devices  
A code generator for text transmission devices emits code characters assigned to subscribers over a trunk line in order to allow a subscriber to be recognized. The code characters are stored in a...
4107457 Transfer terminal with library phrase memory  
A data transfer terminal of the type including a keyboard means, a display means and a printer for use in a data center controlled data transfer system. The printer of the data transfer terminal...
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...
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....
4028696 Double depression magnetic keyswitch  
A keyswitch for a keyboard which may generate either a first signal or a second signal is formed by a pair of saturable magnetic cores and corresponding drive and sense line wires that are molded...
3968330 Code generator for teleprinters or data printers  
A code generator for teleprinters or data printers which, for the recognition of the subscriber, emits a sequence of character signals assigned to the subscriber. A memory is provided which is...
3968324 Circuit arrangement for synchronizing the letters/figures levels of several input and output devices in teleprinters  
An arrangement for synchronizing one or more input/output devices in teleprinters in the context of a subdivision, necessitated by the use of a five-bit code (CCITT 2) for communications...
3875332 Digital transmitter for data bus communications system  
Disclosed is an improved digital transmitter for transmitting serial pulse-code modulation (pcm) data at high bit rates over a transmission line. When not transmitting, the transmitter features a...
3851099 TIME-DIVISION MULTIPLEX SYSTEM  
A circuit arrangement for the transmission of a plurality of binary coded messages and continuous signals over a common channel according to time division multiplex principles is described. A...
3833765 KEYBOARD AND MESSAGE SYSTEM  
A keyboard entry digital data transmission and reception system employing a one-handed keyboard is disclosed. The novel keyboard arrangement and the logic circuitry associated therewith permits...
3800069 SINGLE STEP TAPE READER  
A telegraph transmitter is adapted to generate a stream of output signals while operating in a continuous or running mode as an encoded punched tape incrementally is driven past a sensing station...
3773970 TELEPRINTER SUBSCRIBER STATION APPARATUS FOR SINGLE CURRENT OPERATION WITH BACK POTENTIAL AT THE SUBSCRIBER STATION  
In teleprinter subscriber station circuitry functioning according to the single current principle an auxiliary current source is described whereby a back potential is generated. The auxiliary...
3641328 KEYBOARD ENTRY MEANS AND POWER CONTROL MEANS FOR CALCULATOR  
Internal control and subroutine logic transfers data between a keyboard input, a random access memory, and a plurality of flip-flop registers to perform arithmetic operations and transfers the...
3629507 SOLID-STATE LINE KEYER  
A solid-state line keyer used in a telegraph system isolates an input signal from a signal line. The keyer includes an oscillator responsive to the input signal to which is inductively coupled by...
3626409 KEYBOARD DATA ENTRY DEVICE  
Each of the keys in a multiple key keyboard has associated with it a source of radiofrequency (RF) electromagnetic energy which is activated when the key is depressed. The radiated energy from...
3596187 PULSE CODE GENERATOR  
A pulse code generator for generating morse code logic having a voltage-controlled clock pulse generator, the output of which is coupled as a shift pulse to a digital shift register and through a...
3585371 CONTROLLED SEQUENCE PROGRAMMING MEANS  
A programming means comprises a magnetic shift register to which is applied a selected frequency of pulses, a diode pinboard or card reader is connected to the output of the shift register and...
3555186 KEY-OPERATED TELEPRINTER  
Key-operated teleprinter for the transmission of code symbols by the start-stop method, wherein each key triggers a further bit which has a first value and a second value for letters and numerals...
3530239 INFORMATION ENCODING AND RECORDING SYSTEM  
3496294 CONVERTOR FOR TRANSMITTING UNINTERRUPTED MORSE CODE SIGNALS  
3491355 AUTOMATIC DATA SEQUENCER  
3484782 BIORTHOGONAL CODE GENERATOR  
3480729 APPARATUS FOR OBTAINING REDUCED TELECOMMUNICATION ALPHABETS AND CIRCUITS  
3449517 HALL EFFECT KEYER  
3441671 SWITCHING ARRANGEMENT FOR CODING AND CONVERTING INFORMATION SIGNALS  
1,105,116. Electric selective signalling SIEMENS A.G. 15 Sept., 1965 [15 Sept., 1964], No. 39348/65. Heading G4H. A magnetic core matrix for use with a keyboard in which each key may represent...
3439118 KEYBOARD WITH CODE OUTPUT  
3396238 Automatic radio transmitting devices  
3361875 Apparatus for generating a telegraph signal  
3308918 Pseudo-interlock employing strobe signal with selected keys  
1,098,684. Data transmission systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 12, 1966 [Sept. 20, 1965], No. 36170/66. Heading H4P. In a keyboard transmitter in which each character...
3305635 Multitone data transmission system with data bits comprised of combinations of data tones and rest tones  
3303283 Apparatus for positioning an indicating element in accordance with a digital code  
1,020,636. Selective printing. STANDARD TELEPHONES & CABLES Ltd. March 22, 1963 [March 22, 1962], No. 11474/63. Heading B6F. Type-wheel actions; permutation and combination arrangements.-A printer...
3300582 Solid state identification keyer  
1,053,138. Electric selective signalling. STANDARD TELEPHONES & CABLES Ltd. June 5, 1964 [June 10, 1963], No. 23416/64. Heading G4H. A solid state arrangement for repeatedly generating a fixed...
3297149 Mechanical-electrical keyboard encoding device  
3296369 Communications equipment keyboard  
1,053,727. Magnetic switches. SCM CORPORATION. March 18, 1963 [April 3, 1962], No. 13266/66. Divided out of 1,053,721. Heading H2B. [Also in Division H4] The description is included in...
3293362 Encoding keyboard  
3284773 Magnetic coding apparatus  
3280256 Communication equipment set, keyboard, printer and recorder  
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