Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 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, line width, texture, or line spacing. A position sensing device or mo... | 07/08/2008 |
| 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 an identity. The computer system then generates coded data indicative ... | 11/13/2007 |
| 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 are constituted by the characteristics of the ink being deposited and c... | 10/26/2004 |
| 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 surface with the marking device directed toward or contacting... | 04/22/2003 |
| 6474888 | Universal pen with code sensor 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 are constituted by the characteristics of the ink being depo... | 11/05/2002 |
| 5142277 | Multiple device control system A train communication and control system is described having the cars of the train connected by a two-wire train line running continuously from car to car. Any car may be selected to be a master unit. The selection of one car as a master unit disconnects ... | 08/25/1992 |
| 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 combinations is minimized in order to reduce the transmission... | 03/10/1987 |
| 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, the compact code is decoded to an original character string. ... | 04/16/1985 |
| 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, the microprocessor being programmed to respond to signals ... | 04/10/1984 |
| 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 selecting among an unlit mode, a continuous lighting mode, and ... | 10/04/1983 |
| 4360892 | Portable word-processor Disclosed herein is a portable word-processor comprising the following components; a micro-processor and, connected thereto, a manually operable input chord keyboard having four finger keys and at least one thumb key, the micro-processor being programmed ... | 11/23/1982 |
| 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 command string is defined by a series of keypad closures for... | 06/01/1982 |
| 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 to an International Morse Code memory addressing a selected... | 09/29/1981 |
| 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 unipolar constant current source to a telegraph line, and an o... | 08/28/1979 |
| 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 a logical function. Each of the pulse successions of shorte... | 08/07/1979 |
| 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 memory which is formed from electronically operable storage... | 07/17/1979 |
| 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 is provided with a library phrase memory. The library phrase... | 08/15/1978 |
| 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 usual single code representation for each character. When a tw... | 02/07/1978 |
| 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. It allows the user to type at normal speed using only one h... | 08/16/1977 |
| 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 into a unitary support assembly in a keyswitch housing. A p... | 06/07/1977 |
| 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 transmission purposes, of the total quantity of characters into lett... | 07/06/1976 |
| 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 constructed from electronically operable storage elements in w... | 07/06/1976 |
